3^rd International Conference on Past and Present Research Systems of Green Chemistry September 19-21, 2016 Las Vegas, Nevada, USA

Biography:

David Schiraldi has a PhD in Chemistry from the University of Oregon, worked in the chemical/polymer industry for 20 years, then moved to the Department of Macromolecular Science & Engineering at Case Western Reserve University 14 years ago, where he is the department Chairman. He has published approximately 200 peer-reviewed papers, holds 20 U.S. patents, has launched a startup company, is a Fellow of the American Chemical Society, and is on the advisory boards of a number of journals and academic departments.

Abstract:

Synthetic polymers bring great value to life, but suffer from their oil/gas-derived flammabilities. Halogenated, and more recently phosphorous-based flame retardants have been used for the past generation to reduce fire danger in these products, but in many cases raise toxicology and regulatory issues. Nature has evolved materials over the years which reduce fire danger in the biosphere; some of these, as well as some unexpected materials can be added to man-made products with great effect. This talk will discuss potential bio-based flame retardant systems which significantly reduce the flammability of polyethylene and polypropylene. Mechanical and UL(94) flammability test results will be presented along with detailed material compositions. The work demonstrates that combinations of naturally occurring, low-toxicity additives can be added to polyethylene and polypropylene with no significant loss of mechanical properties, but achieving V(0), self-extinguishing/non-dripping performance.

Biography:

Morizawa spent one year in a laboratory of late professor H. G. Viehe at Universite Catholique de Louvain in Louvain-la-Neuve, Belgium, during the period of the doctoral course, and undertook a PhD in industrial chemistry at Kyoto University (JAPAN) in 1984 under the guidance of professor emeritus Hitosi Nozaki. Immediately, he found a job in Asahi Glass Co., Ltd. He has been engaged in the development of fluorinated organic compounds in the field of specialty chemicals, especially pharmaceutical drugs, agrochemical agents, intermediates, fluoropolymers, fluorination methods, and their processes. Since 2009, he has been Fellow of Research Center. He has published more than 60 papers in journals and filed a patent of more than 140.

Abstract:

Fluorinated organic compounds are widely applied in day to day life and in industry, especially in the field of specialty chemicals such as plastics, elastomers, membranes, textile finishes, coatings, pharmaceutical drugs and agricultural agents, based on the unique properties of fluorine atom(s). Among them, perfluorinated compounds are important components in industrial materials, taking advantages of thermal stability and chemical resistance for infrastructural architectures and electronics applications. However, there were some limitations in the synthesis of the perfluoro building blocks or the precursors because of the difficulty of perfluorinated moiety synthesis and C-F bond forming reaction. The direct fluorination method with fluorine gas in liquid phase overcame the subject, i.e. all the hydrogen atoms in the molecule which is synthesized at will using normal hydrocarbon chemistry are replaced with fluorine atoms at once, even in the case of having functional groups such as carbonyl, ethereal group, etc. The process contributes the reduction of the environmental burden, since the product or the intermediate is used as a solvent, and hydrogen fluoride is the only cogenerated product, theoretically1, 2). On the other hand, methacrylate resin (PMMA) is one of the most important polymers used mainly as optical materials. The monomer, methyl methacrylate (MMA), is manufactured by acetone cyanohydrin (ACH) method, C4 direct oxidation method, and alpha process etc. However, it is not possible to avoid the usage of hydrogen cyanide gas and the byproduct of ammonium sulfate contaminated with organic compounds in ACH method, for example. We have newly developed the efficient method starting with acetone and chloroform in the presence of base and acid catalyst, via chloroisobutyroyl chloride, to produce MMA3). In this case, hydrogen chloride is only a byproduct. These technologies with controlling the high reactivity of fluorine atoms and transforming the chlorinated compounds to the desired constructions could contribute to the establishment of the environmentally benign processes.

Biography:

Andy was born and raised in St. Louis, MO. After earning a bachelor’s degree in chemistry from Lake Forest College, he joined Array BioPharma in Longmont, CO in 2001. He then joined Albert Padwa’s laboratory at Emory University in Atlanta, Georgia studying dipolar cycloaddition approaches to alkaloid natural product synthesis. Upon completion of his doctorate in 2008, he joined Pfizer and has worked on small molecule drug discovery projects within the Neurosciences, Rare Diseases, and Inflammation & Immunology therapeutic areas. He has authored over 25 peer-reviewed publications and several patents. His other interests include ice hockey, poker, and boating.

Abstract:

As the pharmaceutical industry continues to evolve, increased attention to the environmental impact of drug discovery and manufacturing processes has continued to drive a focus on the application of green chemistry principles across the continuum of drug discovery. With the development of new synthetic strategies, methodologies, and technologies that are enabling rapid access to a diverse range of valuable chemical space, opportunities continue to surface to identify and implement sustainable processes. Examples of the development and application of green chemistry principles within the synthetic routes for our drug discovery programs will be discussed. As complexity increases within modern molecular targets, the discipline must continue to focus on identifying and applying these efficiencies wherever possible.

Biography:

Sharda Goel is an eminent Professor in Organic Chemistry in the department of Chemistry, M. D. University, Rohtak. She has forty papers to the credit in national and international journals of high repute. She has been attending and participating in conferences and seminars at national and international levels and contributing to the discipline of chemistry.

Abstract:

Polyhydroquinolines are fused heterocyclic compounds which exhibits bactericidal, fungicidal, analgestic and anti-inflammatory activities and act as hypotensive and anticancer agents. Due to their biological importance, there has been considerable interest in developing new synthetic methods for the preparation of polyhydriquinolines. Herein as a part of our efforts to develop new synthetic method in heterocyclic chemistry, we report an environmentally benign, efficient and convenient protocol for the synthesis of derivatives of polyhydroquinoline by combining dimedone, ethylacetoacetate and ammonium acetate with various substituted arylaldehydes in good to excellent yields by a grinding method under solvent-free conditions. The process is simple, straightforward, environmentally benign and easily leads to the synthesis of desired polyhydroquinolines i.e ethyl 4-phenyl-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylate. The catalyst is easily available and inexpensive. This method proves to be advantageous in terms of excellent yields and short reaction times. In recent years, with the emphasis on adoption of cleaner green chemistry processes, a tremendous interest has been observed in carrying out various chemical transformations under heterogenous conditions owing to simplicity in operation. Among phase transfer catalysts, TEBAC (triethylbenzylammoniumchloride) has gained immense popularity in organic synthesis in last few decades. Owing to all the advantages of TEBAC, the development of TEBAC catalysed organic reactions is still an attractive research area in the coming future.

Biography:

Brindaban C Ranu started his independent research career in 1985 at Indian Association for the Cultivation of Science, Kolkata, India after completing his PhD from Jadavpur University, India and Post-doctoral studies at Virginia Tech, USA. He has been promoted as Professor in 1996 and Senior Professor in 2006. Currently, he is INSA Senior Scientist and J C Bose National Fellow at the same institute. His primary research interest lies in green synthesis and green catalysis. He has published more than 257 papers in reputed journals with an H-index of 52. He is a Fellow of INSA and IASc.

Abstract:

Metals play an important role as catalyst in organic synthesis and have been instrumental in many key transformations. Several noble and expensive metals such as platinum, gold, silver and palladium have been demonstrated to catalyze many important reactions. However, for better cost management and environmental concern use of less expensive and more environment friendly metals are desirable. Thus, the main focus of our group’s activity is directed to benign and inexpensive metal catalyzed C-C and carbon-heteroatom bond formation leading to the synthesis of bioactive molecules. For example, we have developed a recyclable heterogeneous catalyst of Cu (II) anchored on Al₂O₃ surface that has been successfully used for several reactions. One of them is Cu (II)/Al₂O₃ catalyzed solvent controlled selective N-arylation of cyclic amides and amines leading to important scaffolds of potent therapeutic agents. We have also developed a novel concept of using two appropriate inexpensive metals in place of expensive metal like palladium and ligand, where one metal takes active part in catalysis and other one is assisting the process. Using this protocol copper-assisted nickel catalyzed ligand free Csp-Csp and Csp-Csp2 cross-coupling providing a direct access to unsymmetrical 1,3-diynes and en-ynes, and Co/Cu catalyzed C(sp²)-O cross-coupling have been achieved among others, our another approach is to design metal free reaction which is traditionally mediated by metals. Thus, we have developed a visible light photocatalyzed direct conversion of aryl/heteroaryl amines to selenides at room temperature.

Biography:

Claudio Rodríguez graduated as an Engineer and completed his PhD at the Moscow State University of Applied Biotechnology (former MTIIMP) in Russia. For the past 21 years he has been the Director of Research at the National Center of Biological Products in Cuba. He is author of more than 30 granted patents in Cuba, Europe, USA and other countries and has published several papers in international journals. He and his research team have developed more than 20 new products and technologies in the field of diagnostic microbiology.

Abstract:

With the development of nanotechnology new materials based on the transformation, modification, or combination of natural clays have been obtained for different applications in microbiology. Most of these applications are directed to inhibit the growth of bacteria and fungi combining them with solver and other inhibiting substances. Nevertheless, nanotechnology opens new possibilities to detect and identify microorganisms with high accuracy and in few minutes. Different technologies were developed based on the fabrication of nanocomposites with nanoceramics, monoclonal antibodies, DNA or RNA fragments, and biomarkers. Our group has developed a technological platform for the fast and accurate detection of bacteria and fungi by combining nanoclays and nanoceramics with enzyme specific fluorogenic and chromogenic substrates. We also included in the composition different nutrients and activators of the microbial metabolism that allow reduction of the lag phase of bacterial growth and the detection of specific enzymes activity at this early stage of growth. With these new nanocomposites we have been able to identify different microorganisms within few minutes. As an example, it was possible to detect E. coli directly in urine sample in just 10 minutes allowing the further timely and efficient antibiotic therapy.

Biography:

Roberto Rosa graduated in Chemistry in 2005 at the University of Modena and Reggio Emilia, from which he also obtained his PhD in Materials Science in 2011 and from that year he is a Postdoctoral Research Fellow at the same University. His main research interests are related to the application of microwaves as alternative and efficient energy form in the inorganic syntheses of engineered nanomaterials, in the green extraction of phytochemical compounds and in materials processing in general. He is co-authors of more than 30 publications on reputed scientific journals.

Abstract:

In the evaluation and selection of a particular synthetic strategy for the preparation of desired engineered nanomaterials, careful considerations on the size and the shape of nanocrystals must accompany the conventional considerations related to the yield, reaction time and cost of the precursors. Moreover, in order for inorganic chemistry to pursue a sustainable development, green metrics assessments are becoming always more popular. Among the different soft chemistry strategies available for the synthesis of engineered nanomaterials, some of the most intriguing and effectively employed ones have been compared in this work, in terms of their environmental as well as human health assessments. Particularly sol-gel synthesis (both hydrolytic and non-hydrolytic) and solution combustion synthesis are the three synthetic strategies selected for this comparative study. Anatase TiO2 nanoparticles have been identified as the ideal material, since it is probably the most studied and applied semiconductor and photocatalyst, owing to its unique physicochemical properties. First approximated environmental evaluation from the mere chemical point of view has been performed with the software EATOS (Environmental Assessment Tool for Organic Syntheses). Subsequently complete cradle to the grave analyses have been conducted by the Life Cycle Assessment (LCA) methodology, allowing considering further fundamentals damage categories. This study represents a pioneering work for the establishment of environmental and human health impacts rankings, comprising all the possible synthetic approaches to a desired nanomaterial. Preliminary results and future perspectives related to the scaling-up of selected syntheses as well as the possibility of employing alternative heating techniques will be presented as well.

Biography:

Hideki Amii was born in Hyogo in 1968. He graduated from Kyoto University, where he received his Doctorate degree in 1996 under the direction of Professor Yoshihiko Ito. During 1996-2003, he worked as Research Associate of the Department of Applied Chemistry, Faculty of Engineering, Okayama University (Prof. Kenji Uneyama’s group). He carried out postdoctoral work in France with Dr. Guy Bertrand at Université Paul Sabatier during 2000-2001. In 2003, he was appointed to Associate Professor of Kobe University. In 2010, he moved to Gunma University, where he is currently Professor of Chemistry. His research interest focuses in the synthesis of organofluorine compounds by the use of metal reagents.

Abstract:

Trifluoromethylated aromatic compounds are the substances of considerable interest in various industrial fields. Owing to the increasing demands for fluoroaromatics, new methodologies for aromatic trifluoromethylation have been required from the viewpoints of cost, simplicity, efficiency, versatility, and environmental benignity including a catalytic process. Herein, we present catalytic aromatic trifluoromethylation via -carbon elimination. Fluoral (trifluoroacetaldehyde) and its derivatives are readily available compounds. Hemiaminals of fluoral are known to be convenient sources of trifluoromethyl anion. We developed a catalytic procedure for aromatic trifluoromethylation by the use of trifluoroacetaldehyde hemiaminal derivatives as a cross-coupling partner. Furthermore, the cross-coupling reactions employing trifluoromethylated carbinols will be disclosed.

Biography:

Manish Mishra obtained his PhD degree in 2008 from CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, Gujarat, India. He is Head of Chemistry Department and associated faculty of Shah-Schulman Center for Surface Science and Nanotechnology, in Dharmsinh Desai University, Nadiad, Gujarat, India. His areas of research are material science, heterogeneous catalysis, micellar catalysis and green chemistry. He has supervised four PhD & eighteen M.Tech. students, and published more than 35 papers in reputed journals and contributed in more than 40 national and international conferences.

Abstract:

Micellar catalysis in aqueous medium has received considerable interest in organic synthesis owing to the fast and selective conversion of substrate into a desired product in water (green solvent) under ambient reaction conditions.1 In the present work, we demonstrated the potential of micellar catalysis in some industrially important base catalyzed reactions to promote the reactions (conversion rate and selectivity) in water and also to make homogeneous catalysts reusable. The mechanistic aspects of micellar catalysis of the base catalyzed reactions responsible for enhanced reaction rate and high selectivity have been proposed. We propose that the micelles catalyze the reaction in water by generating a huge interfacial area over reaction time due to a short life-time of micelles (i.e. milli-seconds), solubilizing hydrophobic reactants in micelles, concentrating ionic species (e.g., catalytic species like OH- ions) near micellar surface as well as providing specific interactions between reactants and/ or reaction intermediates and surfactant molecules (1, 2). The surfactant structure and nature of the polar group (cationic/ anionic/ nonionic), chain length, head group size, surfactant concentration, substrate/ reactant concentration, substrate structure (hydrophobicity, substituent’s effect), inter-molecular cavities in micelles and life time of micelles were observed to strongly influence the micellar catalysis.

Biography:

Barindra Sana is a Biotechnology Research Professional currently working as a Research Scientist at the Agency for Science Technology and Research (A*STAR), Singapore. He has completed his Master’s in Biotechnology and PhD from Jadavpur University, India. He pursued his Post-doctoral research at Nanyang Technological University, Singapore. He has research interests in multiple area of Industrial Biotechnology including Microbial Bioprospecting, Molecular Microbiology, Enzyme Engineering, Biomass Conversion, Fermentation and Downstream Processing. Currently, he is working on microbial/enzymatic conversion of biomass to biofuel or value-added chemicals. He has published several research articles in internationally reputed journals.

Abstract:

Lignin is a potential renewable raw material for synthesis of various value-added chemicals that can substitute fossil-derived consumer products. A huge amount of lignin is produced as a by-product of paper industry while cellulosic components of plant biomass are utilized for the production of paper pulp. In spite of vast potential, lignin remains the least exploited component of plant biomass due to its extremely complex cross-linked three dimensional structures. Nature has provided a few enzymes known to degrade lignin biomass; however, till date there are no efficient processes available for enzymatic degradation of these extremely complex molecules. Development of effective lignin degrading enzymes may be possible by amending activity of some currently available enzymes, using protein engineering techniques. Directed evolution is one such protein engineering tool that could be used for this purpose but application of this technique for improving efficiency of potential lignin degrading enzymes is limited due to lack of an effective high throughput screening method. With an objective of detecting the lignin degradation products (LDPs), we identified E. coli promoters that are up-regulated by vanillin and a few other potential lignin degradation products. 7 potential promoters were identified by RNA-Seq analysis of E. coli BL21 cells pre-exposed to a sub-lethal dose of vanillin for different exposure times. A ‘very green fluorescence protein’ (vGFP) gene was recombinantly placed under control of these promoters within a customized plasmid and transformed in E. coli BL21 cells to generate the whole cell biosensors. Fluorescence of two biosensors enhanced significantly while grown in the presence of the lignin degradation products (e.g. vanillin, acetovanillone and guaiacol), which was detected by fluorescence-activated cell sorting (FACS) analysis. The sensors did not show any increase of fluorescence by the presence of lignin, lignin model compounds or non-specific chemicals. The fluorescence change by the presence of LDPs was dose-dependent; one sensor can detect vanillin at the concentration as low as 0.5 mM. 

Biography:

Hendrik Spod is currently a PhD student at the research group of Prof. Claus at the Technical University of Darmstadt since 2013. He has received his BSc in 2010 and his MSc in 2012 at the Technical University Darmstadt in direction of heterogeneous catalysis.

Abstract:

The previously known processes of selective benzene hydrogenation to cyclohexene require high loadings of ruthenium supported on different metal oxides and large quantities of inorganic salts, organics or ionic liquids. This results in a difficult four-phase reaction composed of water, catalyst, organic phase and hydrogen (G/L/L/S). The technical challenge in the design of a continuously operated reactor forming cyclohexene is the handling of the four-phase reaction and furthermore to find a catalyst system without any additional additives. Using small amounts of ruthenium nanoparticles impregnated on a binary oxide (La₂O₃-ZnO) without further additives (organic or inorganic) shows yields of cyclohexene up to 30% under optimized conditions in a batch reactor. The optimization was performed by the statistical software Design of Experiments. Furthermore, we studied the influence of different preparation paramters and the catalysts were characterized by XRD, TEM and in situ XPS measurements. A special reaction set up allows an in situ observation of the reaction mixture during the reaction, showing the emulsion of this complicated four-phase system. The droplet size of the organic compound and the rate of hydrogenation are correlated with different stirring rates excluding mass transfer limitations. Subsequently, the most effective catalyst was transferred to a specially designed continuous process to enhance high yields of cyclohexene over a period up to 250 hours.

Biography:

Abstract:

Biography:

Jingping Zhang has completed her PhD at the age of 31 years from Northeast Normal University and postdoctoral studies from Kyushu University. She is the Dean of Faculty of Chemistry of Northeast Normal University. She is also the cheif editor for Journal of Molecular Science. The research interests of Prof. Zhang are investigation of mechanism for novel organic reactions and design functional materials such as lithium ion battery (cathode & anode) materials. She has published more than 240 papers in J. Am. Chem. Soc, Angew. Chem., Int. Ed, Nano energy, ACS Catal, Green Chem, Chem. Commun, J. Mater. Chem. A, Adv. Synth. Catal, J. Org. Chem, J. Comput.Chem, etc.

Abstract:

DFT investigations are carried out to improve the domino cyclization between gem-dialkylthio vinylallenes and benzylamine (BnNH2)[1,2]. Economic reaction approaches were explored, namely, this reaction can occur under organic solvent-free conditions either catalyzed by trace water or self-catalyzed by BnNH2. Three types of reactions (DMSO-assisted, trace water-catalyzed, and self-catalyzed by BnNH2) shared the same reaction mechanism with the nucleophilic attack of BnNH2 on the allenic carbon of thioamide intermediate Re. For trace water-catalyzed reaction another mechanism was also found that the BnNH2 attacks the carbonyl carbon of the conformational isomer of Re. Among the investigated mechanisms, the trace water catalyzed one is suggested to be the most efficient and convenient synthetic method for pyrroles. Therefore, organic solvent DMSO is not necessary for this reaction, which is further verified by the experimental outcome. Our finding suggests more green chemistry reaction processes by either a trace water catalyst or BnNH2 self-catalyst and opens a new synthetic strategy for pyrrole derivatives.

Biography:

I completed my M.Sc in Analytical chemistry from Urmia University, Iran. I am doing my PhD under the supervision on Prof. Khalil Farhadi. I mainly focus on nanoparticle synthesis and its industrial and environmental applications. An application to sulfur nanoparticle which will be presented at the conference, I have made a green nanocomposite and have selectively removed Pb (II) from aqueous samples with truly satisfactory efficiency. Astrochemistry is another area that I consider working and doing research on.

Abstract:

Regarding widespread applications of sulfur and capability of nanoscale particles, we are reporting the synthesis of green sulfur nanoparticles (GSNPs) through precipitation reaction of aqueous sodium thiosulfate catalyzed by oxalic acid assisted in presence of an organic and herbal surfactant. The herbal surfactant-Saponin- was extracted from a native plant called Acanthe Phyllum Bracteatum known as ÇoÄŸan in Urmia West Azerbaijan, Iran. The GSNPs were characterized by Dynamic Light Scattering (DLS), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Atomic Force Microscopy (AFM), Energy-dispersive X-ray Spectroscopy (EDX) and Fourier Transform Infrared Spectroscopy (FT-IR). Based on the obtained data, the size of GSNPs was recorded between 30 to 50 nm. The truly fine sulfur nanoparticles owe their nanoscale size to micelle formation around the sulfur particles supported by saponin aggregation. Keywords: Green Synthesis, sulfur nanoparticles, saponin, herbal surfactant

Biography:

I, Richa has completed my MSc in 2011 from Chaudhary Charan Singh University, Meerut, India and now doing my PhD since 2012 at CSIR-National Chemical Laboratory, Pune, India in Catalysis & Inorganic Chemistry Division under the guidance of Dr. Paresh L. Dhepe. My research work is focused on the replacement of soluble bases with (insoluble) heterogeneous base catalysts for the depolymerization of lignin, which would allow for easy separation of catalyst from the products and reuse. I have granted a patent for the same and manuscript is about to submitted. I also have the experience on synthesis of porous structured and amorphous materials etc.

Abstract:

Lignin is generated as a major by‐product during bio-ethanol production and is a complex three dimensional amorphous biopolymer having several aromatic rings linked together via various linkages (e.g. C-C bond, C-O-C bonds, etc.). The polyphenolic structure of lignin is ideally suitable for the catalytic transformation of it into lower molecular weight substituted phenols, which can be used as octane enhancers and platform chemicals. This research focuses on the development of heterogeneous base catalyzed method for the depolymerization of lignin (Mw~60,000 Da) at milder reaction conditions (T ≤ 300°C) to obtain the intact aromatic monomers. Various solid base catalysts were evaluated for the synthesis of aromatic monomers from depolymerization of lignin. The optimization of reaction conditions such as temperature, concentrations etc. has been done to achieve the maximum yield of aromatic monomers (~51%), by suppressing the formation of degradation products (coke, char) and gas formation. Moreover, catalyst showed a constant recycle activity minimum up to 4th run with 36 % of product yields. Various physico-chemical characterizations for both fresh and spent catalyst were described to enlighten its stability. The depolymerization of lignin yields various aromatic monomers such as vanillin, guaiacol, etc. (Scheme 1) which can be further used as platform chemicals. The yield of aromatic monomers varied strongly depending on the heterogeneous base catalyst used.

Biography:

Edwina Uzunuigbe received her Bachelors and Masters degree in Biochemistry, and is presently a PhD Student at the Biotechnology and Structural Biochemistry (BSB) Group, Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, South Africa; her current research work focuses on green synthesis of some metal nanoparticles for bio-imaging and other biomedical applications. Areas of research interests include molecular biology and Green Nano-biotechnology. She is a member of the South African Society of Biochemistry and Molecular Biology (SASBMB), Nigerian Society of Biochemistry and Molecular Biology (NSBMB) and the Nigerian Society of Experimental Biology (NISEB).

Abstract:

Silver nanoparticles have gained considerable attention because of their unique properties and applications in medicine, cosmetics, water purification, food packaging, and as antibacterial agents, as well as in so many other everyday life applications. In this present work, silver nanoparticles were synthesized using aqueous leaf extracts of Acacia senegal. UV-Vis absorption spectrum showed absorption maxima at about 467 nm. Transmission electron microscopy (TEM) studies showed formation of close to spherical nanoparticles with particle sizes ranging from 10 nm to 19 nm, while X-ray diffraction studies (XRD) confirmed formation of crystalline cubic structure of silver nanoparticles. Fourier transform infrared (FTIR) spectroscopy indicated some functional groups revealing interaction of silver nanoparticles and the leaf extract. More so, the antimicrobial activity of the silver nanoparticles was explored on some strains of both gram negative and positive bacteria and it was found to exhibits significant antibacterial activities. The results showed that the green synthesis of silver nanoparticles is ecofriendly, easy, cost-effective, fast, are not harmful and the AgNPs obtained are very potent against some strains of gram negative and positive organisms.

Biography:

Juan Li, has completed her PhD at the age of 28 years from Beijing Institute of Technology. She finished her postdoctoral studies and works as associate professor in the CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety in Institute of High Energy Physics in Chinese Academy of Science. The group carries out a variety of research investigating the application, nano-bioeffects and nano-safety of nanoparticles. She has published more than 25 papers in reputed journals.

Abstract:

Unmodified metallofullerenes (Gd@C82) were carried on Graphene oxide (GO) as a new magnetic resonance imaging (MRI) contrast agent. The higher R1 relaxivity of GO-Gd@C82 nanohybrids and better brightening effect than Gd@C82(OH)X, in T1-weighted MR images in vivo. How does the proton relaxivity from original gadofullerenes, which kept perfect carbon cage structure and so might completely avoid the release of Gd3+ ions? A “secondary spin-electron transfer” relaxation mechanism was proposed. To better understand the relaxation mechanism in the novel carbon nanohybrids, the structure and the physicochemical properties of carbon nanohybrids were compared carefully, which including the appropriate electric conductivity and the size of GO, the increased number of H proton exchange sites and the enough concentration of Gd3+. The results indicated that though the fundamental origin of relaxivity was still the unpaired electrons spin from Gd3+ in the nanohybrids, but the variety of Gd3+ concentration was not adequately to decipher the high relaxation of the novel architecture. The hydrophilic groups (-OH, -COOH) on GO nanosheets and the electric conductivity were considered to influence the relaxivity of GO-Gd@C82 nanohybrids when the concentration of Gd3+ was certain. The electron transfer from Gd@C82 to GO also contributed to the proton relaxation, which should cooperate with the excellent conductivity of GO to transfer spin-electron to the proton exchange sites.

Biography:

Laitonjam joined the Department of Chemistry, Manipur University, Manipur, India as Assistant Professor in the year 1988. He is serving as Professor of the Department of Chemistry, Manipur University since 2006. He was a Commonwealth Fellow of Association of Commonwealth Universities, London, UK (one year, 1997-1998) and nominated as a Visiting Scientist by the Royal Society, London to visit UK for three months (from 31st January to 5th May 2006). His research area of specialization is Synthetic Organic Chemistry and Natural Products Chemistry. He has produced fifteen PhD students and published more than seventy research papers.

Abstract:

Hexamethylenetetramine-based and DABCO-based ionic liquids were synthesized. These readily available DABCO-based and Hexamethylenetetramine-based ionic liquids behave as recyclable catalysts for various organic reactions, such as, the Michael reaction, the Knoevenagel condensation, Henry reactions, aldol reactions, etc. It will be demonstrated that the DABCO-based ionic liquids behave as recyclable catalysts for the Michael addition reaction of a broad range of active methylene compounds, and α,β-unsaturated carboxylic esters and nitriles, offering excellent yields in short duration. The Knoevenagel condensation of various aromatic/aliphatic/heterocyclic aldehydes and ketones with active methylene compounds using DABCO-based and Hexamethylenetetramine-based ionic liquids afforded the condensation products in excellent yields in short durations. The use of DABCO-based ionic liquid, 1-butyl-4-aza-1-azaniabicyclo[2.2.2]octane hydroxide, as an efficient catalyst for Henry reaction of various carbonyl compounds with nitroalkanes affording very high yields within short duration will also be highlighted. These ILs can also be used as green catalysts for aldol reactions of various aromatic aldehydes and ketones under solvent free conditions at room temperature; and very high to excellent yield can be obtained. These methods are very simple, clean and avoid hazardous organic solvents. The catalysts could be easily recovered and recycled for several times. Thus, development of a series of ionic liquids which could be easily prepared and could used as recyclable catalysts for various organic reactions will be highlighted. The process developed is an improved process which offers several advantages over other processes and would contribute to environmentally friendly and safer processes.

Biography:

Sarker, the President, CEO and CTO of Waste Technologies, LLC (WTL) since 2013, is the sole owner of the company. He received his PhD in Chemistry from the University of Manchester Institute of Science and Technology (UMIST), Manchester, UK. He also has a Masters and a Bachelors degree, both in Chemistry, from the University of Chittagong, Bangladesh. Dr. Sarker has been the Vice President of Research & Development for NSR since 2005 where he invented the technology which makes up US Patent # 8,927,797 B2 “Method for converting waste plastics to lower – molecular weight hydrocarbons, particularly hydrocarbon fuel materials and the hydrocarbon material produced thereby.” An additional 5 patents are pending. This work has garnered numerous awards both nationally and internationally. In addition to having published more than 110 research articles he acts as Editor-in Chief for 15 renowned international journals; World Research Journal of Physical Chemistry, International Journal of Chemical Research, and the World Research Journal of Environment and Waste Management and Editor of 155 and 175 of peer reviewer of national and international journals. Dr, Sarker wrote 6 books including chapters on Waste Plastic to Fuel. Dr. Sarker is a distinguished member of the following associations, Royal Society of Chemistry (RSC), UK, Member of Institute Physics (MInstP), UK, American Chemical Society (ACS), American Physical Society (APS), American Institute of Chemical Engineering (AIChE), International Union of Pure and Applied Chemistry (IUPAC), Advanced Photon Sources User Group (APS), Chicago, Canadian Society for Chemistry (CSC), Chemical Institute of Canada (CIC), American Council on Renewable Energy (ACORE), CleanTech Forum International, Connecticut Technology Council, Alliance for Clean Energy of New York (ACENY), Society of Automobile Engineering (SAE) International, Society of Plastics Engineers (SPE), Vermont Renewable Energy, Sierra Club, Greenpeace International, Bangladesh Chemical Society (Life Member), Dhaka, Bangladesh, Canadian Institute for Neutron Scattering (CINS) and many more. In addition, Dr. Sarker was elected President of Association of Energy Engineers (AEE)-CT Chapter in August, 2012-14 and advisor board member of CT Green Building Council (CTGBC) since 2013. Dr. Sarker also heads a humanitarian effort in Bangladesh; The Moinuddin and Anjuman Foundation, Inc., (www.moinandanjufoundation.com) which helps provide essentials for the poor and underprivileged in Bangladesh and around the Globe.

Abstract:

Waste Plastic Waste is huge problem in USA and around the Global. This is global problem . Inventions of the twentieth century, plastics are everywhere. Society has found ample ways to use plastics. But users are less adept at managing the material when they are finished with it—often after only one use. The volume of plastics being produced, used, generated, and discarded is greater than ever before. Plastics therefore require increasing effort and ingenuity to properly manage. Annually, of the 120 billion pounds of plastics produced in the United States only about 6% or 4.8 billion pounds are recycled. For all the talk of plastic bans, plastic production is increasing. Waste Technologies LLC (WTL) has the solution at its disposal. This technology can produce approximately 1.3 liter of “WTL fuel” from one kilogram of plastic waste. The exact yield depends on the type of plastic, and the grade of WTL fuel desired. Typically, the process produces a residue of less than 5% of the weight of the plastic waste. This residue is rich in carbon and may be an environmentally superior substitute for coal with a higher BTU value. The WTL technology is able to cater to a wide range of diverse applications, including but not limited to fuel, gas and electrical generation. NSR’s / WTL patented technology, in conjunction with WTL technology and know-how, is a simple and economically viable process to decompose the hydrocarbon polymers of waste plastic into the shorter chain hydrocarbons of liquid fuel. WTL believes that it can convert approximately one tonne of plastic into about 300 gallons of fuel at a cost of about $0.75-$1.00 per gallon and produces 4,205 ft3 (CFT) of light gas (C1-C4) byproduct when developed to commercial size. WTL’s refining process is uncomplicated and promises to be very competitive with large crude oil installations. In financial projections WTL uses $30/bbl. ($0.71 per gallon) for preprocessing and refining costs. Other plastic recycling technologies generally have a very narrow band of plastics they can use. Nearly all recycling is done with plastic designations 1 or 2 while designations 3 through 7 are virtually untapped (over 70% of all plastic fall within these categories). A combination of economic and technological factors account for this situation. The advantage of WTL technology is that it can produce a profitable product from material that society generally pays to thrown away. It is this no or low cost feedstock that is the key advantage.

Biography:

Jing Li received her Ph.D. degree from Cornell University in 1990. She joined the chemistry faculty at Rutgers University in 1991 as Assistant Professor and is now a Distinguished Professor. She has published over 280 papers (including 15 invited review, feature, and perspective articles and book chapters) and eight patents. She currently serves as Associate Editor for Crystal Growth & Design. She was elected as an AAAS Fellow in 2012 and received a Humboldt Research Award in 2013. Very recently, she has earned distinction to be one of the “Highly Cited Researchers 2015” by Thomson Reuters.

Abstract:

Crystalline hybrid semiconductors built on periodically ordered inorganic and organic nanomodules represent a new type of functional materials that are fundamental important and practical relevant. Recently, we have developed several such material families by rational design strategy and self-assembly process. These hybrid materials are composed of nanometer or sub-nanometer sized binary semiconductor modules (e.g. 0D clusters, 1D chains, or 2D slabs) that are connected to organic molecules (ligands) via coordinate bonds to form perfectly ordered crystal lattices. They often exhibit significantly enhanced properties over their binary parent compounds (e.g. more efficient energy absorption and enhanced optical emission), as well as new phenomena and unique features that are not attainable with either of the individual inorganic or organic component alone. In addition, optoelectronic properties of these materials can be systematically tuned and optimized by modifying their crystal structure, dimensionality, and chemical composition. Notably these materials can be obtained by cost-effective green synthesis, and are particularly promising for energy-efficient general lighting applications

Biography:

Mohammed Ali obtained his PhD in organic chemistry from the University of Kansas. He has been teaching at the Southeast Missouri State University for the last 21 years. Main focus of his research is in green chemistry. He has published many papers in various peer-reviwed journals.

Abstract:

As a part of our research envevour in green chemistry we have devised a microwave-promoted synthesis of N-substituted pyrroles. Pyrroles are an important class of heterocyclic compounds with various biological activities. They are known to have anti-malerial, anti-inflammatory, antibacterial, antihypertensive and other biological properties. Pyrroles are structural units in many natural products including heme, chlorophyll, bile pigments and cytochromes. Many methods for the synthesis of substituted pyrroles have been described in the leterature. Synthesis of pyrrole utilizing Hantzsch, Knorr, Aza-Wittig and Paul-Knorr methods are frequently reported in the literature. The Paal-Knorr method has been known since 1885 and still remains an attractive pathway for the synthesis of N-substituted pyrroles but requires long reaction times. In an effort to simplify the synthesis of N-substituted pyrroles, we developed a microwave-assisted method for the synthesis of these compounds from 2,5-dimethoxytetrahydrofuran and primary amines. Our method avoids using any toxic catalyst and produces high product yields in short time. Most often a simple filtration through a short silica gel column produced analytically pure product. The results and efficacy of our microwave method for pyrrole synthesis will be presented at the meeting.

Biography:

Vibha Tandon graduated with MSc degree in Organic Chemistry from Gorakhpur University in the year 1986 and obtained PhD in Oligonucleotide Chemistry from Allahabad University in 1991. He subsequently held postdoctoral position at the Indian Institute of Technology, Kanpur prior to joining Dr. B.R. Ambedkar Center for Biomedical Research in Delhi University (DU) in 1998. Later in the year 2009 she moved to Department of Chemistry as Reader and in 2010 Associate Professor at DU only. Recently, she has moved as full professor to SCMM, Jawaharlal Nehru University on lien from University of Delhi. She believes in Translational Research. She had been working at the interface of Chemistry and Biology. Her research interests include Drug design and drug development, Radiation Biology, Topoisomerase targeting, Antisense therapy. She has supervised 16 students for PhD program and mentored around 65 students for summer program. She has been recently appointed as chairperson of SEC on Chemical Sciences of Women Scientist Scheme of DST. She was a Senior Fulbright-Nehru Research Scholar at Georgia State University, Atlanta, USA (2013). She is a recipient of INSA exchange fellowship to visit Essen School of Radiation Biology in Germany (2012) and Royal Society Fellowship to visit Prof. Michael J. Gait at Medical Research Council (MRC) Cambridge, U.K (2007).

Abstract:

A dual role of Reformatsky reagent is disclosed here for the synthesis of 1,2-dihydroisoquinolines via 6-endo-dig cyclisation, without aid of any external Lewis acid catalyst. This expeditious approach was achieved by the dual nature of Reformatsky reagent i.e. activation of alkyne and then nucleophilic addition to the isoquinolinium salt. Synthetic pathway has high functional group tolerance and can be utilized on gram scale. A mechanistic pathway has been proposed. The 1,2-dihydroisoquinolines derivatives showed upto 90% inhibition of strand transfer activity of HIV integrase enzyme.The highly efficient tandem Reformatsky type reaction without aid of any external Lewis acid catalyst under mild condition has been disclosed. This time-efficient, economically green an expeditious versatile approach to 1, 2-dihydroisoquinolines proceeds with high functional group tolerance and excellent to moderate yield. Isoquinoline core tolerated diverse Reformatsky reagents. Interestingly, Fluorinated esters can also be incorporated by this methodology. These isoquinolines can be used for HIV-Integrase inhibitory activity.

Biography:

SO Oluwafemi is a National Research Foundation (NRF), South Africa rated researcher at the department of Applied Chemistry, University of Johannesburg. His research is in the broad area of nanotechnology and include green synthesis of semiconductor and metal nanomaterials for different applications which include but not limited to biological (Imaging, labeling, therapeutic), optical, environmental and water treatment. He has author and co-author many journal publications, book chapter and books. He is a reviewer for many international journals in the field of nanotechnology and has won many accolades both local and international.

Abstract:

Heavy metals enter the environment due to increasing industrial activities and have been found to be potential hazard to health and environment even at trace concentrations. Thus, high sensitive and selective determination of these heavy metal ions have received significant attention. We herein report green synthesis of dextrose and maltose-reduced silver nanoparticles (Ag-NPs) for colorimetric sensing of metal ions at different concentrations and reaction time. The synthesized Ag-NPs were characterized using UV-Visible spectroscopy (UV-Vis), Fourier transform Infra-red spectroscopy (FTIR), transmission electron microscopy (TEM) and dynamic light scattering (DLS). Both maltose and dextrose-reduced Ag-NPs were highly sensitive and selective towards Hg 2+ and Fe 2+ ions over other metal ions. This was accompanied with a colour change from yellowish solution to colourless for Hg 2+ ions and from yellowish solution to greenish for Fe 2+ ions. Our findings also showed that dextrose-reduced Ag-NPs resulted in better colorimetric sensing of metal ions than maltose-reduced Ag-NPs. Both Ag-NPs solutions were highly sensitive and selective towards Hg 2+ ions at lower concentration up to 10-12 M with a linear regression coefficient value (R2) of 0.9792 and 0.9740 for maltose and dextrose reduced Ag-NPs respectively.

Biography:

Lina Zhao is an associate professor in Chinese Academy of Sciences. She obtained her PhD in condensed physics (2005) from Beijing Institute of Technology. Since 2005, she worked in the state key laboratory for artificial microstructure and mesoscopic physics, Peking University as a postdoctoral research fellow. She did her scientific investigations in Nanyang Technological University (Atomistix joint project), Singapore from 2006 to 2008. She joined the CAS key laboratory for biomedical effects of nanomaterials and nanosafety, Institute of High Physics in 2008 through the “Top Talent” program. Her research focus on the molecular mechanism of the interaction in green nanotechnology.

Abstract:

The peptide coated gold nanocluster (AuNC) can be synthesized by green chemical technique. The peptide coated AuNC has precise chemical formula and molecular structure, which are critical to its unique nanotechnological applications of targeting specific proteins either for protein analysis or drug design. Here we designed and studied the molecular structure and electronic structure of the peptide coated AuNC by the theoretical method for the first time. Furthermore, we identified the coating peptide sequence and studied the specific binding mechanism of peptide coated AuNC to target protein. From the results, we proposed a universal approach to control the chemicophysical properties of AuNC by the coating interface. Based on the biocompatible AuNC, the coating peptide sequence design and its targeting molecular mechanism could develop a series of novel peptide coated AuNC targeting systems. We brought a new insight from theoretical viewpoint to the targeting detection and targeting nanomedicine researches in green nanotechnology.

Biography:

Nadia Ali Ahmed Hassan Elkanzi, presently giving her services as a lecturer of Organic chemistry, Faculty of Science, Chemistry Department, Aswan University, Aswan, Egypt, Assistant professor of Organic Chemistry, Faculty of Science, Aljouf University. Her research interest includes organic synthesis which has biomedical applications. Dr. Nadia Ali associated with the editorial board of many scientific journals and had published 33research articles in internationally reputed journals and two books. For the year 2009 she was selected for American who,s who in the world 2010 Edition. She has been included 2000 outstanding Intellectuals of the 21st Century by the International Biographical Centre (2011).

Abstract:

The review summarizes literature dealing with the synthesis of thiazolidinoneand β-lactamVarious methods for synthesis of thiazolidinone and β-lactamare discussed. Like boiling benzene thioglycolic acid was added to (1)a-d using a water separator to give thiazolidinone derivatives (2)a-d. Also Reaction of the Schiff bases of 3 and /or5 with one mole of thioglycolic acid was proceeded smoothly to afford the corresponding thiazolidinone derivatives 6,7 respectively. The synthesis of a new type of compound, 2-hydrazolyl-5,5-diphenyl-4-thiazolidinone (24), obtained by treatment of thiosemicarbazone with benzyl in basic media. β-lactams were prepared by N-Tosyl-3-halo-3-butenylamines underwent efficient Ullmann-type coupling to afford 2-alkylideneazetidines, which could be readily converted to the corresponding β-lactams by oxidation with O3 to give β-lactams 119. A chiral N-heterocyclic carbene catalyzed the Staudinger reaction of arylalkylketenes with a variety of N-tert-butoxycarbonylarylimines to give the corresponding cis-β-lactams 124.

Biography:

R. K. Sharma is a professor and co-ordinator of Green Chemistry Network Centre at Department of Chemistry, University of Delhi, India. He obtained his doctoral degree from D.U. in 1986. Thereafter, he went to the University of Tokyo and Kumamoto University on a JSPS Post-Doctoral Fellowship. His research interests focus on the development of silica based organic-inorganic hybrid materials as scavengers, sensors and catalysts, designing of novel metal-chelating inhibitors of transcription factor NF-κB-DNA binding, molecular modelling etc. He has published numerous book chapters and research articles in renowned international journals. He is the Honorary Secretary of RSC (North India Section) and incharge of an International Chapter of ACS-GCI.

Abstract:

The development of novel catalytic technologies has provided a great impetus to modern organic synthesis by addressing the crucial challenges of green chemistry namely-“energy and sustainability.” Therefore, it not surprising that till date, a plethora of homogeneous as well as heterogeneous catalytic systems has been fabricated that have shown their efficacy in different organic transformations. However, their recovery and reusability along with the synergistic benefit of high activity has intrigued the chemists since long. Fortunately, with the advent of cutting-edge green nanotechnology, the field of catalysis science has experienced a potential economic boom as it enables the successful generation of precisely engineered catalytic systems that fulfil the desired goals of activity and recovery. In recent years, magnetically responsive nanomaterials employing silica decorated magnetic nanoparticles (SMNPs) as the solid support have conquered new horizons in the area of catalytic research as they enable environmentally-friendly and sustainable processes. Owing to exceptional magnetic properties, they offer ease of separation from the desired reaction mixtures using simply an external magnet along with enhanced recyclability. Also, the silica coating imparts long term stability to these nanoparticles (NPs) by screening the magnetic dipolar attraction between the NPs. Impressed by the fascinating features of SMNPs; we have fabricated a wide variety of silica decorated magnetically recoverable nanocatalysts that have efficiently catalyzed diverse organic reactions such as coupling, oxidation of aryl halides, reduction of nitroarenes etc. The design of such type of green nanocatalysts opens up new avenues for the large scale synthesis of industrially significant products.

Biography:

V K Rathod is Professor in Chemical Engineering Department at Institute of Chemical Technology, Mumbai, India. His research interest includes Green synthesis, Extraction of Natural Ingredients, separation of Biomolecules, enzyme-Catalyzed Reactions, and Wastewater Treatment. He has almost 14 years of teaching and research experience and he taught various chemical engineering subjects which includes Advanced Heat Transfer, Transport Phenomena, Multiphase Reactor Engineering, Chemical Reaction Engineering, and Advance Separation Processes. He is a Fellow of Maharashtra academy of sciences. Till 2016 he has published around 99 papers in international peer reviewed journal and guided almost 65 master and 10 PhD students.

Abstract:

Enzymes are preferred over chemical catalyst for the synthesis of various chemicals as it requires mild reactions conditions. Additionally since enzyme catalysed processes do not generate any waste material due to high slectvity of enzyme, the process can be labelled as “Green Procss”. This work deals with synthesis of cinnaamyl adipate by esterification between Cinnamyl alcohol and adipic acid catalyzed by immobilized lipase B from Candida Antarctica, commercially known as Novozym 435 in a conventional batch reactor using standard mechanical mixing and in solvent free system. Effects of various parameters such as nature of lipase, speed of agitation, mole ratio, catalyst loading, temperature and reusability of catalyst on the conversion was studied and optmized. Overall conversion of 94.05% was achieved at optimized contitions as reaction time of 12 h, mole ratio of adipic acid to cinnamyl alcohol of 1:3, catalyst loading 1% and reaction temperature of 60°C. It is also observed that the enzyme can be recycled seven times without marginal loss of enzyme activity. To the best of our knowledge, this is first report where enzyme is used as a catalyst for sythesis of cinnamyl adipate. From the progress curve analysis, it was established that the reaction followed the random bi-bi mechanism. There was an excellent agreement between the experimental data and stimulated data. This work will be very useful for synthesis of cinnamyl adipate and many other such chemicals via green route as well as design of batch rector.

Biography:

Hua Deng has completed his PhD in Environmental Science from Research Center for Eco-Environmental Sciences (RCEES), Chinese Academy of Sciences (CAS) in 2015. He has been working as assistant professor in Institute of Urban Environment (IUE), Chinese Academy of Sciences (CAS) since 2015. His research interests include environmental catalysis and air pollution control, such as selective catalytic reduction of NOx and catalytic combusion of VOCs.

Abstract:

NOx removal from lean-burn exhaust remains a major challenge in environmental catalysis. Selective catalytic reduction of NOx by hydrocarbons (HC-SCR) is a potential method to remove NOx from lean-burn exhausts. The alumina supported silver catalyst (Ag/Al2O3) is deemed as one of the most effective materials for HC-SCR of NOx in excess oxygen. In particular, ethanol is extremely effective for the SCR of NOx over Ag/Al2O3. However, it is lack of activity in the low temperature range (< 350 ℃) still remains a problem. Since pioneer work of Burch et al, preparing a new type of Ag/Al2O3 catalyst to improve its low temperature performance by solvent-free mechanochemically method draw widely interest. In former study, the detailed preparing conditions including rotation speed and ball-milled time were carefully examined. The performance of selective reduction of NOx was evaluated by ethanol accompanied with byproduct monitor. A strongly positive correlation between the amount of Altetra structures and N2 production rate confirms the crucial role of Altetra in NOx reduction by ethanol. Thus, oriented designing and creating active site of HC-SCR( namely Ag-O-Altetra entity) at micro-scale in Ag/Al2O3 is promising to improve the conversion activity at low termperatures. In this study, AlN was used as precursor of Altetra entities to anchor isolated silver ions. After water thermal calcination of Ag/Al2O3 with AlN addition, the low temperature activity is truely improved. The catalytic performance of this catalysts is close to the H2 effect.

Biography:

Lakshmi Kantam completed her PhD from Kurukshetra University, Kurukshetra. She was the former director of the Indian Institute of Chemical Technology, Hyderabad, a premier scientific research organization, and presently serving as Dr. B. P. Godrej Distinguished Professor of Green Chemistry at ICT, Mumbai. She has published more than 320 papers in reputed journals and serving as an editorial board member of The Chemical Record and Journal of Chemical Sciences. She received several prestigious awards and honors: Fellow of National Academy of Sciences (FNASc), 2008; Fellow of Indian National Academy of Sciences (FNA), 2014; Eminent Scientist Award - Catalysis Society of India, 2015; for her overall scientific achievements in the area of catalysis.

Abstract:

Catalysis is a highly demanding technology for sustainable society and drives innovation in many other fields. Today over 90% of all industrial chemicals are produced with the aid of catalysts. World catalyst demand is forecast to grow to $24.1 billion through 2018 and presently it is around 16.3 billion dollars. The catalysis of organic reactions by homogeneous and heterogeneous catalysts remains a vibrant field of scientific inquiry. Our research group is devoted to developing innovative green processes for the synthesis of fine chemicals employing catalysts that achieve highest possible atom economy. Over the years, our studies have led to cutting edge technologies that meet stringent environmental specifications in pollution abatement. We have made significant contributions towards the development of various novel solid acid/bases, homogeneous/heterogeneous catalysts, nanomaterial based catalysts for alkylation, acylation, nitration, bromination, hydrogenation and oxidation reactions. Hydroxyapatite (HA) is a hydrated calcium phosphate material, which is an important biomaterial because of its similarity to the mineral component of mammalian bone. We have utilized these materials and their metal exchanged materials as catalysts for C-C and C-N coupling reactions. Similarly, hydrotalcites, anionic clays have been exchanged with different metal ions and successfully applied in a number of organic transformations for example: osmium exchanged hydrotalcites in asymmetric dihydroxylation and palladium exchanged catalysts for Heck-, Suzuki-, Sonogashira-, and Stille type coupling reactions C-C coupling reactions. In the talk, I will present a brief description of the details of the some of the reactions and also the processes demonstrated to industries.

Biography:

Subodh Eknathrao Bhandarkar working as Associate Professor in Department of Chemistry , Government Vidarbha Institute of Science & Humanities Amravati (MS) India. He has having 17 years of Teaching & 02 years of administrative experience as a Principal. He has completed his PhD at the age of 33 years from Sant Gadge Baba Amravati University (MS) India under guidance of pro Voice Chancellor Dr.V.S.Jamode. He has published more than 40 papers in reputed International journals and International Conference. He has attended International conf. in Busan South Koria in 2014, and Mosco Russia in 2015. His research Area is Organic Synthesis.

Abstract:

Heterocyclic chemistry is one of the most complex and intriguing branch of organic chemistry and it constitutes the largest and most varied family of organic compounds. Aurones are responsible for the bright yellow color of some popular ornamental flowers suchas snapdragon, cosmos and dahlia Aurones are heterocyclic compound and till date approximately 100 aurones have been reported from natural sources, mainly flowering plants and a few ferns, mosses and marine brown algae. The literature survey reveals that aurone derivatives have been studied extensively because of their broad spectrum of biological activity, variety of Industrial applications and diverse chemical reactivity. Due to this vital biological role of aurone derivatives it was thought to synthesized substituted aurones. 2-acetyl –substituted phenols were prepared by modified Nenchi’s method which on treatment with aromatic aldehydes and KOH gives chalcones in an excellent yield. These chalcones along with aromatic aldehydes in a microwave gives auranes in 56 - 59% yield. Thin Layer Chromatography on silica gel-G, was used to check the purity of the compounds. The synthesized compounds were characterized by elemental analysis, 1H NMR and IR Spectroscopy. All Newly synthesized compound were scanned for their antimicrobial and antifungal activity and all newly synthesized compounds shows an excellent antimicrobial and antifungal activities.

Biography:

Firas Habeb Abdulrazzak has completed his M.Sc. from Baghdad University College of Education for Pure Science, PhD from Babylon University College of Science. He spent seven months at University of Hannover to complete part of my proposal with Professor D.W. Bahnemann, and participated in three workshops one of them in Malaysia and two in Turkey in the field of chemical safety and security sponsored by the US Sandia Labs. He is the head of Chemistry Department - College of Education for Pure Science- Diyala University. He has published 5 papers in Excess Molar Quantities and more than 4 papers in the field of synthesis Carbon Nanotubes in science journals with new 5 papers in Hydrogen production and remove the pollutants of water by composites and carbon nanotubes.

Abstract:

Carbon nanotubes CNTs were synthesized from natural petroleum gas as a source of carbon by using modifying strategies, higher in safety, friendly for environmental and cheep in coast. The benefits of green chemistry in this work represent by: i- abilities to prepare different types of carbon nanotubes, ii- the natural petroleum gas play two roles which as a source of carbon and energy could built the tubular stricture of carbon atoms, iii- the possibility of using resulting heat from the reactor in multiple applications such as heating and distillation of different fluids in controlled system. The process of synthesis were done in atmospheric of nitrogen and carbon monoxide gas with ratios of 20:80% and flow rate for the mixture 500 cm3/min. The synthesized CNTs were characterized by using Raman spectroscopy, Scanning electron microscopy SEM, Transmissions electron microscopy TEM and Thermal gravimetric analysis TGA.

Biography:

Febee Louka has completed her PhD in 2004, from Ohio University in Analytical Chemistry. She is Associate professor in Analytical/Environmental Chemistry, University of Louisiana at Lafayette. She is a CoPI in $1,025,000 grant on effect of oil spills. She was awarded the Summer Research Award 2012 and the Outstanding Undergraduate Research Mentoring 2014. She is also the awardee of Marvin and Warren Boudreaux / BoRSF Professorship in Chemistry (2012-18). She was awarded the Outstanding Teaching Award College of Sciences 2016. She has published more than 59 papers and presentations in peer reviewed journals and National and International meetings.

Abstract:

In this study we were investigating the effect of ecofriendly adsorbents in case of polycyclic cyclic aromatic hydrocarbons (PAHs) contaminated areas. Some of these PAHs can cause oxidative DNA damage. The waste produced in Louisiana such as sugarcane (Saccharum officinarum) bagasse, crawfish (Procambarus clarkia) and satsuma (Citrus unshiu) shells were used as low cost ecofriendly adsorbents. These adsorbents were examined in the removal of the PAHs which are the main components of oil spills. Each water sample was dosed with a known concentration of the PAH under investigation. In this study the PAHs that were tested are pyrene, chrysene and benzo(a)pyrene. Several variables were tested, such as using different amounts of each ecofriendly material on the adsorption of the PAH. A known amount of the adsorbent was added to the dosed water followed by shacking. The analysis of water samples were performed using liquid-liquid extraction and comparing the quantified concentration of PAH to that of a blank which contained no adsorbent. The sample was then concentrated under nitrogen, followed by injection into gas chromatography-FID. The intervals of shacking, temperature and particle size effect on the efficiency of extraction were also examined. The results indicated that adsorbents had significant efficiency to minimize the concentrations of pyrene, chrysene and benzo(a)pyrene in the water samples. The results also showed that the amount of adsorbent as well as the time of incubation had a great effect on the adsorption efficiency. The data obtained showed different extents of adsorptions for the individual PAHs under investigation

Biography:

Full Professor of Chemistry, Federal University of São Carlos, 2005 – present. Associate Professor of Chemistry, Federal University of São Carlos, 1978 – 2005, Assistant Professor of Chemistry, Federal University of São Carlos, 1976 – 1978, Postdoctoral Fellow, University of Strathclyde, Glasgow, Scotland-U.K, under the guidance of Professor Peter G. Waterman in Feb./87 to Jun/89. The central theme of my research is isolation and structure elucidation of plant secondary metabolites and the application of findings on numerous biological screening and in ecological and phylogenic studies. Research has generally been centred on the Rainforest of Brazil with particular reference to Sapindales plant families.

Abstract:

Our group investigated the effectiveness and safety of plant extracts as potential natural pesticides for use as possible alternatives for synthetic pesticides that are intensively applied in many plantations in Brazil. In bioassays with ethanol extracts from more than 50 plants, Toona ciliata (Meliaceae) was the most toxic against Spodoptera frugiperda in the lab. Chemical analysis revealed the presence of the active ingredient cedrelone in the stems. It was isolated and assayed against S. frugiperda and evaluated the Cumulative Mortality via the incorporation of this compound into the artificial diet. The activities were comparable to that of the synthetic insecticides. However, its primary modes of action remained unclear. It has been hypothesized that it may inhibit acetylcholinesterase enzyme activity. Cedrelone was observed to cause strong inhibition of the acetylcholinesterase enzyme from S. frugiperda. The purpose of this work was also to apply the mass and nuclear magnetic resonance spectroscopy, a green analytical method which require small amount of solvent, for determination of cedrelone in hemolymph, midgut, head and faeces from S. frugiperda. Cedrelone was detected in the head, intestine and in the excreted faeces. MS spectra showed the presence of intact cedrelone and indicated change in its structure. Quantitative analysis via MS/MS indicated that more than 50% of cedrelone was metabolized. From this study, we conclude that the acetylcholinesterase inhibition is likely the primary mode of action for insecticidal activity by cedrelone.

Biography:

Mauricio A. Rostagno has obtained his PhD from University of Cádiz (Spain) and postdoctoral studies from University of Campinas (UNICAMP) at the School of Food Engineering. He is an Assistant Professor of the School of Applied Sciences of UNICAMP lecturing about food composition and analysis. He has published more than 39 papers in reputed journals, and also edited the book “Natural product extraction: principles and applications” published by Royal Society of Chemistry.

Abstract:

The agri-food industry produces large amounts of wastes in their daily activities that are usually disposed without further usage, including peels, bagasse, pulp, seeds, leaves, husks, etc. However, most of the “wastes” from such activities still contain large quantities of valuable chemical compounds, such as oils, antioxidants, coloring and flavoring agents, carbohydrates, etc., that find applications in nutrition, medicine, food technology, chemical engineering and energy, among other areas. In the context of a biorefinery, one of the main objectives is to maintain an optimal balance between increases in manufacturing output and costs while minimizing the environmental impact of the industry. The integration of advanced processes based on supercritical fluids allows obtaining several different products sequentially from the same raw material (derived from the main activity) using environmentally friendly processes. By exploring temperature and solvent polarity gradients and green solvents (water, ethanol, CO2, etc.) specific compounds with a wide range of polarity (from hydrophobic oils to hydrophilic coloring agents) are selectively removed producing highly concentrated extracts. Other processes using supercritical fluids may also be integrated into the biorefinery to produce nanoparticles and to reuse the solvent. From the residue generated by the extractions is also possible to separate lignin from cellulose and hemicellulose and perform the hydrolysis to produce phenolic compounds and fermentable sugars. The remaining solid can then be subjected to gasification producing hydrogen or methane. Case studies of this strategy applied to natural products (sugar cane, pressed palm, turmeric and grapes) are presented to illustrate the concept.

Biography:

Quansheng Chen earned a PhD from Jiangsu University China, and now he is currently a full professor of Jiangsu University China. His current research interests is emerging green analytical methods for food quality and safety. He received the 2nd Prize of National Award of Technological Invention of China, and the ProSPER.Net-Scopus Award for Asia-Pacific Young Scientist in 2011, etc. He has authored >200 peer-reviewed scientific papers in the preputed journal and 3 books, and holds >30 patents. Currently, he has been serving as the editorial members of 3 reputed journal.

Abstract:

Public attention in food quality and safety has increased significantly in recent decades, due in part to changes in consumer behavior and the gradually increasing food consumption. Demand for high quality of food obviously requires high standards of quality assurance and process control; satisfying this demand in turn requires appropriate analytical tools for monitoring food quality and safety. Green analytical tool, as an alternative to conventional analysis methods for food quality and safety, has the desirable features in terms of operating speed, ease-of-use, minimal or no sample preparation, and avoidance of sample destruction. This paper reviews recent developed green analytical toos, such as near infrared (NIR) spectroscopy, electronic tongue (E-tongue), electronic nose (E-nose), hyperspectral imaging, biosensors, integration of multiple sensors, and latest research efforts to assess food quality and safety. Particularly, we have reviewed some related data processing algorithms involved in each green analytical tool. Finally, we provided the technical challenges and outlook for the application of these green analytical technologies in analysis of food quality and safety.

Biography:

Sridevi Chigurupati has completed her PhD in pharmaceutical sciences at the age of 29 years from JNTU University, India. Her area of research is synthetic and Green chemistry. She has more than 11 years of experience in academics and research. At present she is the working as Senior lecturer in AIMST University at Malaysia. She has delivered her talk on her present research projects on Green chemistry at various conferences in California, India and Dubai. She has published more than 25 papers in reputed journals and has been serving as a reviewer and editorial board member for many reputed journals like Medicinal Chemistry Research, Journal of Applied Pharmaceutical Sciences, Journal of Pharmacognosy and Arabian Journal of chemistry.

Abstract:

Chemistry is incontestably a very prominent part of our daily lives. Chemical progresses bring new environmental complications and harmful unexpected side effects, which result in the need for ‘greener’ chemical products. The application of green chemistry principles in academics and industries can therefore be a significant prospect to enhance our positive impact on the global community. Green chemistry can be defined as the invention, design and application of chemical products and processes to reduce or eliminate the generation of hazardous substances. This presentation is a strategy towards sustainable development and with an aim to create a ‘Greener World.’ The success of the modern pharmaceutical industry is firmly built on the remarkable achievements of organic synthesis over the last century. However, the down side is that many of this time - honored and trusted synthetic methodologies were developed in an era when the toxic properties and the issues of waste minimization and sustainability were largely unheard of. The concept of benign by design started in mid-1990’s that is designing environmentally benign products and processes to address the environmental issues of both chemical products and the processes by which they are produced. This integrated the conceptions of atom economy and E- factors eventually became a guiding principle of Green Chemistry. Another concept which has become the focus of attention, both in industry and society at large, in the last decade or more is that of sustainable development, meeting the needs of the present generation without compromising the ability of future generations to meet their own needs. Sustainable development and Green Chemistry have now become a strategic industrial and societal focus, the former is our ultimate goal and the latter is a means to achieve it. On conclusion, it is clear that the challenge of sustainability and Green Chemistry is leading to fundamental, game changing innovations in organic synthesis that will ultimately lead to economic, environmental and societal benefits in the pharmaceutical industry and in the chemical and allied industries at large. Green chemistry is not a solution to all environmental problems but is the most fundamental approach in preventing pollution.

Biography:

Lakshmi Kantam Mannepalli has completed her PhD from Kurukshetra University, India. She was the Former Director of the Indian Institute of Chemical Technology, Hyderabad, a premier scientific research organization and presently serving as a Professor of Green Chemistry at ICT, Mumbai. She has published more than 320 papers in reputed journals and serving as an Editorial Board Member of the Chemical Record and Journal of Chemical Sciences. She has received several prestigious awards and honors including Fellow of National Academy of Sciences (FNASc), 2008; Fellow of Indian National Academy of Sciences (FNA), 2014 and Eminent Scientist Award-Catalysis Society of India, 2015 for her overall scientific achievements in the area of catalysis.

Abstract:

Catalysis is a highly demanding technology for sustainable society and drives innovation in many other fields. Today over 90% of all industrial chemicals are produced with the aid of catalysts. World catalyst demand is forecast to grow to $24.1 billion through 2018 and presently it is around 16.3 billion dollars. The catalysis of organic reactions by homogeneous and heterogeneous catalysts remains a vibrant field of scientific inquiry. Our research group is devoted to developing innovative green processes for the synthesis of fine
chemicals employing catalysts that achieve highest possible atom economy. Over the years, our studies have led to cutting edge technologies that meet stringent environmental specifications in pollution abatement. We have made significant contributions towards the development of various novel solid acid/bases, homogeneous/heterogeneous catalysts, nanomaterial based catalysts for alkylation, acylation, nitration, bromination, hydrogenation and oxidation reactions. Hydroxyapatite (HA) is a hydrated calcium phosphate material, which is an important biomaterial because of its similarity to the mineral component of mammalian bone. We have utilized these materials and their metal exchanged materials as catalysts for C-C and C-N coupling reactions. Similarly, hydrotalcites, anionic clays have been exchanged with different metal ions and successfully applied in a number of organic transformations for example: Osmium exchanged hydrotalcites in asymmetric dihydroxylation; palladium exchanged catalysts for Heck-, Suzuki-, Sonogashira-, Stille type coupling reactions and C-C coupling reactions. In the talk, I will present a brief description of the details of the some of the reactions and also the processes demonstrated to industries. 

Biography:

Abstract:

Biography:

Hajime Hirao received his BS and MS degrees from Kyoto University and his PhD from The University of Tokyo. He did his postdoc at The Hebrew University of Jerusalem, Emory University, and Kyoto University. He is currently an assistant professor at Nanyang Technological University, Singapore. He is particularly interested in theoretical aspects of chemical reactions. Before starting his postdoc training, he also worked for three years on computer-assisted drug design at Novartis in Japan. These have made his research interest lie primarily in the application of computational chemistry to chemical reactions in bioinorganic chemistry, homogeneous/heterogeneous catalysis, and medicinal chemistry.

Abstract:

Even though chemistry is divided into many subdisciplines for practical reasons, the physical principles used in computational chemistry underlie all branches of chemistry. In addition, to make finally developed reactions as well as even research phases greener, today, it is inevitable that computational chemistry is used in various scenes. Hence, computational chemistry has unlimited potential to contribute to the advancement of chemistry in a broad context. With this in mind, we are applying quantum chemistry, multiscale QM/MM models, and many other advanced computational chemistry techniques to a variety of complex molecular systems such as metalloenzymes, porous materials, transition-metal catalysts, drugs/drug targets, porous coordination polymers/metal-organic frameworks, and nanomaterials. In particular, using computational approaches and often with experimental coworkers, we seek to derive key insights into chemical reaction mechanisms and bonding patterns of complex molecules.

Biography:

Andrew C Flick has completed his Bachelor’s degree in Chemistry from Lake Forest College. In 2001, he joined Array BioPharma in Longmont, CO. He has then joined Albert Padwa Laboratory at Emory University in Atlanta, Georgia. After his Doctorate study he joined Pfizer and has worked on Small Molecule Drug Discovery projects within the neurosciences, rare diseases and inflammation & immunology therapeutic areas. He has authored over 25 peer-reviewed publications and several patents.

Abstract:

In the past decade, many organizations and institutions worldwide have recognized the importance of green-chemistry practices for a wide variety of applications. This shift is being driven by the realization that processes that is cost-effective, environmentally superior and delivers a competitive advantage. However, success depends on developing a culture of sustainability within an organization regardless of sector (e.g., academic, governmental or industrial). Staff at all levels from management to lab scientists need to understand the concepts of green chemistry and how they might be embraced to everyone's benefit. The focus of the workshop will involve the Seven Guidelines to Green Sustainability at the Organizational Level as outlined nicely by Tucker and Faul, empowering champions, raising awareness, expand collaborations, define metrics, recognize achievements, invest in technology and promote outreach. The purpose of the workshop is to identify specific actions and/or initiatives that can help embed Green principles within an organization and the output will be for the groups to share their proposals, actions or initiatives that have been proposed or successfully enabled already within their organizations that either can or have furthered attention to GC within their organizations.

Biography:

Brajadulal Chattopadhyay is currently working in the Department of Physics, Jadavpur University, India. Prof. Chattopadhyay completed his Master (1987) and PhD (1994) degrees from the University of Calcutta, India and worked at Bose Institute, India and Technical University of Delft, the Netherlands as postdoctoral fellow. He has been working in the field of Bioconcrete development by using an anaerobic bacterium to enhance the strength and durability of concrete structures since 2001 and published his work in many internationally reputed journals. He has already supervised 15 PhD students and hold one National and two International patents in his research career.

Abstract:

Development of smart bio-concrete materials has recently become an emerging area of research for construction purposes. In this exertion, the gene having silica leaching attribute has been transformed to a Bacillus subtilis bacterial strain and the transformed bacterial cells are utilized directly for higher strength and more durable green self-healing concrete structures. The silica leaching gene was fished out from the BKH2 bacterium, amplified by the PCR technique and cloned into Bacillus subtilis bacteria via a suitable T-vector for developing a novel bio-engineered Bacillus subtilis strain. The transformed bacterial cells when incorporated directly into mortar specimens produced high performance bio-composite materials. Improvements of compressive strength, ultrasonic pulse velocity and decrease in water absorption capacity along with increased sulphate resistance are noted in the bacteria amended mortars. It is established that the microbiologically induced new rod-like shaped Gehlenite (Calcium aluminium silicate) phase grow inside the cement-sand mortar/concrete matrices which is responsible for increment of strength and durability. This means in practice that a substantial part of the cement of mortar/concrete mixtures can be left out while still obtaining the necessary final strength. This would substantially improve the ecological footprint as cement causes massive CO2 emission during its production which affects the global climate negatively. Exploration of lucrative and easy methodologies for the development of bio-concrete materials using the novel bio-engineered Bacillus subtilis bacterial strain is therefore highly significant for commercial purposes which creates new hope for green and self-healing sustainable construction composites in the near future.

Biography:

Huanhuan Li has completed his master degree at the age of 25 years from Jiangsu University and pursue her PhD in Jiangsu University School of Food and Biological Engineering. He has published 8 SCI papers in reputed journals and has been published one paper in the journal of sub-nature (Scientific reports)

Abstract:

Rare earth-doped upconversion nanoparticles (UCNPs) possess peculiar frequency upconverting capabilities and high detection sensitivity qualities which present them as a potent alternative biosensor requisite for the detection of pathogenic bacteria. This paper reports a novel dual-color UCNP-based bacterium-sensing biosensor for Escherichia coli and Staphylococcus aureus detection simultaneously using UCNP as a fluorescence marker conjugated with antibodies as the specific molecular recognition unit. Dual-color UCNPs were fabricated via varying doped rare-earth ions to acquire the well-separated emission peaks. Dual-color UCNPs conjugated with antibody of E.coli and S.aureus for use as fluorescent probes. When E.coli and S.aureus were added into the reaction system, the fluorescent probes will capture the target bacteria through the specific binding of antibody, and then the fluorescence intensities decreased (∆I=Io-I) were observed to increase linearly with the concentration of the E.coli (664 nm) and S.aureus (806 nm) from 47 to 47×106 cfu mL-1 (y=199.45x-207.95, R2=0.98) and 64 to 64×106 cfu mL-1 (y=281.94x-116.19, R2=0.9657), respectively, resulting in the relatively low limit of 13 cfu mL-1 and 15 cfu mL-1 for E.coli and S.aureus, respectively. Furthermore, this UCNP-based bacterium-sensing biosensor was also could be successfully applied to simultaneous detect E.coli and S.aureus in adulterated meat and milk samples.

Biography:

Zhiming Guo has completed his PhD at the age of 33 years from China Agricultral University and postdoctoral studies from Jiangsu University School of Food & Biological Engineering. He is the director of Agricultural Engineering, and now is a lectuer in Jiangsu University School of Food & Biological Engineering. He has published more than 30 papers in reputed journals.

Abstract:

In order to simultaneous nondestructive on-line inspect edible quality and internal defect of apple, this work presents the development of an on-line detection prototype system using near infrared transmittance technology as a novel approach for on-line detect quality attributes without sample destructiveness. The on-line detection system was designed and developed to improve spectra signal quality, lower heat damage, reduce mechanical damage. Special detection software was developed for real-time inspection based on multithread programming technology. In this experiment, internal defects of apple caused by core rot fungi are collected and cultivated, because the natural internal defects apple sample is difficult to collect. We tried the preparation of samples and achieved good performance. It was achieved internal quality information in nondestructive online way by this system. Partial least squares -discriminant analysis (PLS-DA) models were developed to identify internal defects samples. The results obtained from PLS-DA models, in validation, gave a positive predictive value of classification about 91%. Moreover, predictive models were performed applying fast PLS regression algorithm to predict the soluble solid content (SSC) in apple. Very good results were obtained for SSC with R2 and RPD equal to 0.90 and 3.00, respectively. The results showed that the nondestructive on-line detection prototype based on NIR transmittance technique was feasible to simultaneous inspect the edible quality and internal defect of apple. The present research provides the foundation for the future development of an automatic system based on transmittance spectroscopy which is extremely important from the economic point of view.

Biography:

Reem Kamal Shah has completed his PhD at the age of 33 years from Umm Al-Qura University Makkah, Saudi Arabia. She is the director of analytical chemistry, faculty of science, Umm Al-Qura, Makkah. She has published more than 11 papers in reputed journals.

Abstract:

A new chromogenic reagent, meloxicam was used for highly sensitive, selective and rapid method for the determination of silver based on the rapid reaction of silver(I) with meloxicam. In the presence acetate buffer solution of pH 4.6 and Triton X-100 as an optimum medium, meloxicam reacts with silver to form a yellow complex of molar ratio 1:1 (silver to meloxicam). The molar absorptivity of the formed complex was calculated to be 1.124 x 104 L mol-1 cm-1 at 412 nm. Beer’s law is obeyed in the range of 1.0-15.0 μg mL-1. The relative standard deviation for six replicate samples of 7.0 μg mL-1 was 1.33%. The limits of detection and quantification were also calculated. Finally the repeatability, accuracy and the effect of interfering ions on the determination of silver ion were evaluated. The method was applied successfully for determination silver in some water samples.

Biography:

Kamlesh K. Shrivas obtained his Master degree in Chemistry (2000) and PhD degree in Chemistry (2004) from Pt. Ravishankar Shukla University, India. He worked as a quality control officer, Gharda Chemical Ltd., India (2005-2006). He worked as a post doctoral fellow at Tamkang University, TAIWAN and National Sun-Yat Sen University, TAIWAN (2006-2008), at Food Drug and Administration, USA (2008-2009), at Hamamatsu University School of Medicine, JAPAN (2009-2011). Since 2009, he has been an Assistant Professor at the Guru Ghasidas University, India. His current interests include the analytical development of chemical sensors for the detections of metal ions, drugs and biomolecules. In addition, imaging and identification of biomolecules (peptides, proteins, lipids and drugs) in tissue sample using mass spectrometry. He has published 44 research papers in highly impact journals and 3 book chapters.

Abstract:

To the best of our knowledge, to date there is no report for the synthesis of silver nanoparticles capped with oleylamine (AgNPs/OLA) and then use of NPs in the preparation of paper based conductive track for electroanalytical application. The synthesized OLA capped AgNPs was characterized with TEM, UV-visible, EDX, FTIR and TGA to know the size, composition and surface modification of NPs. The best electrical conductivity of printed electronic (0.11x 105 S cm-1) was obtained by applying a 10% AgNPs nano-ink solution on photo paper while keeping sintering temperature at 150oC for 60 min of sintering time. A conductive nano-ink was used to prepare electrodes (counter, reference and working) on photo paper and utilized in cyclic voltammetry (CV) measurement. In addition, we demonstrated the lighting of LED when conductive track was connected to a 1.5 V battery. The advantages of this paper-based flexible electrodes are user-friendly, cost effective and multiple analyses (> 50 times) in CV compared to other printed electrodes.

Biography:

Abstract:

Wasteswaters from industries should be treated before discharge. The pollution problems posed by toxic heavy metals to the environment have been a concern. The use of unmodified and mercaptoacetic acid modified kolanut pod husk as biosorbents in detoxifing Cd2+, Ni2+ and Pb2+ ions from aqueous solutions were investigated using a batch sorption process. Biosorption was carried out in a batch process at various contact time and dose with initial metal ions concentration of 100 mg/l using 250 µm size of the of the unmodified and modified kolanut pod husks respectively at a temperature of 25 0C and pH of 7.5. Maximum biosorption capacities of unmodified kolanut pod husk were observed at 3g, values given as 98.999 mg/g, 89.870 mg/g for Cd2+, Ni2+ and 89.890 mg/g for Pb2+ at 2g while that of modified kolanut pod husk indicated 99.952 mg/g at 2g for Cd2+ and 99.776 mg/g, 99.021 mg/g for Ni2+ and Pb2+ ions at 3g. More so at 60 minutes for Cd2+, 90 minutes for Ni2+ and 10 minutes for Pb2+, values given as 99.986 mg/g, 99.999 mg/g and 99.999 mg/g by the unmodified kola nut pod husk while modified kolanut pod husk gave 99.666 mg/g at 30 minutes for Cd2+, 99.664 mg/g at 30 minutes for Ni2+ and 96.164 mg/g at 90 minutes for Pb2+. Generally maximum biosorption were all favoured at low doses and at low contact time. The kinetic of metal ions biosorption on unmodified and modified kola nut pod husks have also been studied by fitting the data in Lagergren’s first-order, Ho-Mckay’s pseudo-second-order kinetics hypothesis and Elovich adsorption model. It was observed that the removal of metal ions over the biosorbent showed a better fit with the pseudo-second-order process and Elovich adsorption model than the pseudo -first-order. From this work kolanut pod husk had proven to be a good biosorbent for Cd2+, Ni2+ and Pb2+ .

Biography:

Mohamed El-Far, worked in biochemistry field for 40 years, published over 80 peer-reviewed papers. He received Fulbright and British council fellowships several times as well as German DAAD grant to establish PDT Program at Munchen, also received US-AID grant to establish PDT unit in Egypt.. He is serving on the editorial boards and Hon. Editor to three international journals. He acts as UNESCO expert in science and technology. Dr. El-Far served as visiting professor to University of California as well as Utah laser center also Mayo clinic for several years. He also served as a visiting professor to Cardiff and Swansea Universities, UK. He is a member of International Photodynamic Association and Royal Society of Chemistry, UK. Selected recently as expert and consultant for biochemistry in the national committee of suprime council of Universities in Egypt, which is the highest nation honor.

Abstract:

Ancient Egyptians were the first to adopt phototherapy in treatment of diseases. They used orally ingested plants containing light activated psoralens and sunlight to successfully treat vitiligo. Four thousand years later, psoralens – ultraviolet A (PUVA) was shown to be effective in treatment of psoriasis. Photodynamic therapy (PDT) is based upon using light, a photosensitizing drug, and molecular oxygen in combination. We will show scientific background of the origin of PDT and our use of it in diagnosis and treatment of certain types of cancers, experimentally as well as clinically. We will show and give an overview of 35 years long term team(s) experience in therapeutic potential of cancer-PDT. El-Far et al, were the first to use safer natural porphyrins as uroporphyrin and hepta-carboxylic porphyrin as a selective tumor localizing and photosensitizing agents in combination with Lasers. We were also the first to show the bio-distribution and selective in-vivo tumor localization of endogenous porphyrins induced and stimulated by a safer natural compound "5-aminolevulinic acid" (ALA) using a newly developed technique –based on green chemistry principles-for diagnosis of bladder cancer as well as treatment. We will present current state of art using cancer-PDT and Phytochemicals.

Biography:

Dukjoon Kim received B.S. (1984) from Seoul National University, MS (1986) from KAIST, and PhD. (1993) from Purdue University. He worked at Lehigh University as a post-doctoral research associate and Hyundai Engineering Company as a researcher. Since 1994, he has been working in Sungkyunkwan University as a faculty member, and now he is a director of BK21 plus research group. He published about 170 SCI papers on polymer electrolyte membranes in energy generating and storage systems, novel functional mesoporous materials, and nanoparticles and hydrogels for biomedical application.

Abstract:

Sulfonated poly(arylene ether ketone) (SPAEK) fuel cell membranes were prepared in a variety of structures including cross-linked, random and multi-block copolymers to enhance dimensional and mechanical stability as well as proton conductivity. Hygroscopic mesoporous conductors were embedded in the membranes to lessen their dehydration in the low humid environment. Organosiloxane network was introduced to form interpenetrating polymer network (IPN) structures to adjust the elongational strength of the membranes. Synthesis of SPAEK and its precursor was confirmed using 1H-NMR spectroscopy and FT-IR spectroscopy. The effects of degree of sulfonation, hygroscopic conductors and organosiloxane network on several essential membranes properties such as proton conductivity, methanol crossover, and thermal and mechanical stability were analyzed. Those properties were correlated with the phase separation behavior investigated employing SAXS and AFM. The prepared SPAEK membranes were thermally stable up to 250oC without any chemical degradation. While the SPAEK membranes containing hygroscopic proton conductors exhibited superior conductivity to that of Nafion®117, those showed lower methanol permeability and no mechanical failure.

Biography:

Bernabé L. Rivas, is Biochemist and PhD at University of Concepción. He was a post-doc University of Tübingen 1989-1991 by A von H Foundation, Germany. He is Vice-rector at University of Concepcion. Awarded Municipal Award of Sciences, Municipality of Concepción, Regional Award of Sciences, Regional Government, Macromolecules Division of Chilean Chemical Society Award. His main interests are preparation of ion exchange resins, polymer enhanced ultrafiltration, separation of arsenic, polymer-clay composite materials for metal separations. He authored/co-authored 380 publications and 27 book chapters. He is Editor of Journal of the Chilean Chemical Society, member of the Editorial Boards of Polymer International and the Open Macromolecules Journal.

Abstract:

Polymer-clay nanocomposites researches have presented a great attention from scientific community because nanocomposite materials present enhanced properties (mechanical, thermal, and barrier properties) compared with starting material (unloaded polymers). In case of crosslinked hydrophilic materials such as hydrogel and superabsorbent materials, the addition of clay could potentially result in either an increase or a decrease in the water absorbency. The former behavior is a consequence of the higher hydrophilicity that is provided by the clay layers, and the latter effect is due to an increase in the number of crosslinked points formed by the interaction of the polymeric matrix and the clay platelets. On the other hand, membrane filtration allows easily the separation of ions bound to water-soluble polymers from non-bound ions. This technique is known as the liquid-phase polymer-based retention (LPR) technique. Applications of water-soluble polymers (WSP)s to the homogeneous enrichment or selective separation of various metal ions from dilute solutions have been reported. In this talk, we present the study on the characterization and sorption performance of polymer-clay ion exchange resins, which are based on a polymer matrix bearing functional groups able to interact with contaminant oxyanions and layered double hydroxide (LDH) dispersed within the resin as well as the removal of inorganic pollutants through membrane filtration in conjunction with water-soluble functional polymers. The removal ability depended strongly on the pH and on the oxyanion. The removal behaviour under competitive conditions was also carried out.

Biography:

Azamat Tynybekov has 20 years and more of practical experience of active work in the field of the environmental security of the Kyrghyz Republic. He worked as the manager and the scientific head of the several International projects sponsored by CRDF (USA), INTAS ( European Union), NATO for the Peace Program, UNEP and UNDP. Scientific results of these international projects have been published in the International scientific magazines a kind 200 articles and more and 4 books, and also presented in a number of the International conferences in Europe and USA which are specified in my resume. Now, together with scientists from the USA, Greece, England, the Russian are prepared a number of projects for development of Issyk-Kul region as an ecological risk assessment, Cooperative Extension, Research of degradation of glaciers and water problems, Research of a condition of a phytoplankton of Issyk Kul Lake etc. Are published more than 200 articles and 4 books( Environmental security and nanotechnology)

Abstract:

Issyk-Kul Lake is represented by draining lakes, numerous rivers flowing down from the mountain tops, and lifting water. Lake with own size and depth of one of the greatest alpine lakes in the world. The clean mountain air, a variety of mineral springs, large stocks of therapeutic muds can actively use the lake shore for a spa treatment and rest. Natural factors of Issyk-Kul region well with picturesque landscape. High transparency and blue water, give a beautiful view of the lake is unique, that increases the prospects of tourism development, water and winter sports. In recent years, the attention to Lake Issyk-Kul is due to two reasons. The first is that the lake level is declining. Over the past 70 years, e 1927 to 1997, the reduction was 3.5 m mainly due to the increase of boron water for irrigation and partly through natural to the secular variations of the lake level. In connection with the development of agriculture in the Issyk-Kul Basin is a growing diversion of water from the rivers flowing into the lake: 1966 river water intake was 9% of river runoff in 1982. - 34%, in 1998. -43%.The second reason for the increased attention to the Issyk-Kul is associated with the practical activity of man - water pollution caused by the rapid development of recreation areas, construction, agricultural irrigation and livestock.

Biography:

Krishna Chattopadhyay has completed her PhD (Physiology) from University of Calcutta in 2002. She did her postdoctoral studies in the Department of Chemical Technology of Calcutta University and worked as a Women Scientist (WOS-A) in the same Department. At present, she is working as a Women Scientist (WOS-B) in DST project in the Department of Chemistry of Jadavpur University. She is also engaged as a guest faculty in the Department of Food Processing and Nutrition, IIEST, Shibpur. She has published many papers in reputed International Journals. Her field of interest is Pharmacology, Food and Nutrition and Natural Anti-oxidants.

Abstract:

Curcumin is a well-known anti-inflammatory and antioxidant agent that significantly reduces the nicotine-induced toxicity both at cellular and genetic levels. However, the poor aqueous solubility of curcumin makes it less bio-available that hinders the more possible remediation of curcumin against nicotinic abuse in the target cells. An attempt was made to synthesize nano-curcumin (20-50 nm) that would be more soluble in water with enhanced bioavailability. The prepared nanoparticles of curcumin (Cur-NPs) were characterized by Ultraviolet-Visible (UV-Vis) spectroscopy, Field Emission Scanning Electron Microscopy (FESEM), X-Ray Diffraction (XRD) and Zeta- sizer techniques. Investigations were performed on the structural modifications of nicotine-triggered two important mammalian proteins (α-lactalbumin; α-LA and Cytochrome-c; Cyt-c) via the interaction of concentration dependent curcumin nanoparticles. It was observed that nicotine significantly affected the structural conformation and optical properties of α-LA and Cyt-c proteins by modifying their structural integrity. Cur-NPs significantly regained the structural integrity of those nicotine-treated proteins as reveled by the results from UV-Visible absorption, Intrinsic Fluorescence Emission and Circular Dichroism (CD) studies. The Isothermal Titration Calorimetric (ITC) investigation demonstrated that Cur-NPs prevented the nicotine molecules for binding in the active site of those proteins. This was due to the greater binding affinity of curcumin towards α-lactalbumin (-4.87 KCal/mol) and Cytochrome c (-7.64 KCal/mol) proteins in comparisons to nicotine (-4.24 KCal/mol; ~ -5.26 Kcal /mol respectively) as observed in Molecular docking studies. This study clearly demonstrated that curcumin in its nano particulate form acted as an efficient ameliorative against nicotine-induced toxicity at cellular levels.

Biography:

Kavita Shah completed her PhD from Banaras Hindu University and is presently Director, Institute of Environment and Sustainable Development, BHU. She has contributed in the area of Environmental Biotechnology, Health and Water Resource Management. She has 70 publications, 02 patent/process, 12 GenBank/protein-model submissions to her credit. Dr Shah is a popular teacher. She received Women Scientist Award, BHU-Gold Medal, Japanese-STA-Fellowship, IUBMB Young Scientist Fellowship Award, Swiss Fellowship and Medhavi Chattra Puraskar. Her important contributions include developing dopamine biosensor; process for purification of rice-peroxidase; multi-stress tolerant tomato lines and Cd/Heat/Salt/SA/JA/NO-induced stress-signaling in rice under changing climate.

Abstract:

Sustainability and environmental safety management involves managing the natural resources optimally and with minimal impact on environment. Human-induced climate change has become a major focus of scientific research because of the potential catastrophic effects on biodiversity, food security and human communities. As a consequence corporate spending on environmental health and safety is increasing. A marked effect of climate change on the global scale demand more intervention of environmental biotechnology and green chemistry to understand the issues at micro-level. The formulation of adaptive strategies together with assessment of the impact of climate change forms the base for climate resilient agriculture globally. With this the cropping pattern of rice growing areas has changed and after harvest a large volume of rice plant residue is left behind which has limited use. This plant residue is rich in enzymes which remains untapped. The present work showcases the use of a plant residue for the development of a dopamine sensor for use of human subjects as a sustainable approach towards management of neurological patients without compromising with the food supply or nature at large.

Biography:

Hendrik Spod, MSc is a 3^rd year PhD Student at the research group of Prof. Claus at the Technical University of Darmstadt since 2013. He received his BSc in 2010 and his M.Sc. in 2012 at the Technical University Darmstadt in direction of heterogeneous catalysis.  

Abstract:

The previously known processes of selective benzene hydrogenation to cyclohexene require high loadings of ruthenium supported on different metal oxides and large quantities of inorganic salts, organics or ionic liquids. This results in a difficult four-phase reaction composed of water, catalyst, organic phase and hydrogen (G/L/L/S).^[1]The technical challenge in the design of a continuously operated reactor forming cyclohexene is the handling of the four-phase reaction, and furthermore to find a catalyst system without any additional additives.^[2]       

Using small amounts of ruthenium nanoparticles impregnated on a binary oxide (La₂O₃-ZnO) without further additives (organic or inorganic) shows yields of cyclohexene up to 30 % under optimized conditions in a batch reactor. The optimization was performed by the statistical software Design of Experiments.^[3]Furthermore, we studied the influence of  different preparation paramters and the catalysts were characterized by XRD, TEM and in situ XPS measurements. A special reaction set up allows an in situ observation of the reaction mixture during the reaction, showing the emulsion of this complicated four-phase system. The droplet size of the organic compound and the rate of hydrogenation are correlated with different stirring rates excluding mass transfer limitations.^[4]Subsequently, the most effective catalyst was transferred to a specially designed continuous process to enhance high yields of cyclohexene over a period up to 250 hours.^[5]

Biography:

Qin Ouyang has completed her PhD at the age of 27 years from Jiangsu University and works at Jiangsu University. She has published more than 20 papers in reputed journals.

Abstract:

Chinese rice wine sensory attributes, including color, aroma, taste and style, play a major role in product acceptability by directly influencing the success of a product in the marketplace. The estimation of the sensory attributes is generally done by human sensory analysis. However, the use of human for sensory evaluation entails several drawbacks, such as fatigue, stress and inconsistence etc. This study aimed to assess the feasibility of using near infrared (NIR) spectroscopy technique, as an instrumental evaluation technique, for predicting the sensory attributes (i.e., color, aroma, taste and style) in Chinese rice wine. Synergy interval partial least squares (Si-PLS) was used to select the optimal spectral intervals and construct models between the NIR spectra and the reference scores of each sensory attribute, respectively. The performance of model was evaluated by the correlation coefficient (Rp) and the root mean square error (RMSEP) in the prediction set. The optimal performance by the Si-PLS model for color was Rp = 0.8735, RMSEP= 0.274; the aroma was Rp= 0.8316, RMSEP= 0.893; the taste was Rp = 0.8791, RMSEP= 1.22; and the style was Rp= 0.7784, RMSEP= 0.557. This work demonstrated that the instrumental test using NIR spectroscopy technique has a high potential in predicting the sensory attributes in Chinese rice wine; it can overcome the drawbacks of human sensory analysis and achieve the objective measurements in a short time, in a consistent and cost-effective manner.

Biography:

BSc.,MSc and PhD from Chemical Engineering at Istanbul Technical University. Post Doc. Visiting Researcher at University of Utah. Studies in Surface Chemistry, Filtration, Adsorption, Clays and clay based nano structures, Biodegradable polymers, Hybrid composite membranes, AFM modes in surface/interface studies, biohydrometallurgy and environmental effects, etc.

Abstract:

Arsenic level in natural water sources and rarely drinking water is a serious problem in the west regions of Turkey. Since natural mineralization causes arsenic contaminations, millions of people in more than 70 countries are also probably under the same risk of arsenic poisoning from drinking water. The maximum contaminant level (MCL) for arsenic was revised as 0.010mg/L (10 µg/L) by the United States Environmental Protection Agency (EPA). In the case of Emet and Hisarcik (in Kütahya, Turkey), the arsenic content of primary drinking waters and groundwater’s are determined as generally higher than MCL. High level of arsenic in natural waters was considered to be related with the formation of boron minerals in these regions where the world’s largest borate deposits ever discovered. Besides, an efficient and economic approach for water purification can be adsorption processes. The use of low cost adsorbents provides promising future research on novel porous materials such as synthetic calcium silicates. In this study, rice hull from a rice plant were used for the production of synthetic calcium silicates. Enhanced arsenic removal provided by iron modification of Ca-silicates was also investigated. Produced silicates were characterized by FTIR, X-ray, TGA, particle size and BET surface area analysis. Iron modified adsorbents were found to be completely amorphous materials. Produced adsorbent shows excellent removal efficiency above 99.8%, while pure Ca-silicate from rush hull removed 88%. In other words, iron modified Ca-silicates effort on the 10ppm for initial concentration of arsenic, obtain drinking water with 0.01187ppm arsenic levels below MCL.

Biography:

Abul Quasem AL-AMIN, PhD in Economics, is an Associate Professor at International Business School (IBS), Universiti Teknologi Malaysia. He has published more than 80 international publications including several books. His research primarily includes on technological innovation for green economy and policy for economic development and sustainability. In the last 12 years, he was associated with research on development and environment in policy modelling using computable general equilibrium approach; data envelop analysis and econometric tools. Beside these, his research interest includes on modelling international trade & environment, macroeconomic stability, ecological economics, optimal pollution taxation and developing regional climate change related database.

Abstract:

The existing climate change mitigation actions and further thrust towards an effective government climate roadmap is without a doubt a fundamental need for any country after the era of the COP21 commitment. The rationality behind the commitment undoubtedly is necessary and it is important to examine what is suitable for a developed and developing nations to realize for a long-run optimal climatic policy. This study critically evaluates two proposals to explore the societal cost to bring down the cliatic degredation by: (i) the COP21 declaration, and (ii) optimality concern for the further decision-making process by utilizing a ‘dynamic integrated model of climate and the economy’. The study findings enhance current knowledge in: (a) setting up a long-term national climate change mitigation policy framework in response to country specific national policy on climate change, (b) filling up the research gap by finding the distribution of impacts on the costs of different climate controlling options, and (c) offering policy makers an attractive alternative to mitigate the climate change thrust with precise knowledge of the overall impacts of the adaptive measures that support sustainable future strategies. Although the ultimate target group considered in this study is principally policy makers, a wide range of research communities and organizations related to climate change studies are expected to benefit due to the nature of the scientific outcomes.

Biography:

Hendrik Spod

Abstract:

The previously 

Biography:

TBA..!!

Abstract:

The enzyme TnBgl1A from Thermotoga neapolitana catalyse hydrolysis of O-linked terminal β-glycosidic bonds at the non-reducing end of glycosides and oligosaccharides. Previous work has shown the enzyme to catalyse hydrolysis of flavonoid glucosides but that glucosylation at the 3-position was less efficiently hydrolysed. Hydrolysis of the flavonoid quercetin-3-glucoside could however be improved by only a single residue change in the aglycone binding site, and to further explore the effect of selected residues on activity, a set of single amino acid changes were introduced close to the aglycone binding region of the active site at positions N220(S/F), N221(S/F), F224(I), F310(L/E) and W322(A). The effect on activity was monitored using the substrates para-nitrophenyl-β-D-glucopyranoside (pNPGlc) and the flavonoid quercetin-3-glucoside (Q3). All enzyme variants were cloned and overexpressed in Escherichia coli, and purified by immobilized metal ion affinity chromatography to a purity of approximately 90%. Flavonoid-glucoside hydrolysis was monitored by developing a HPLC-assay for this purpose. The mutations N220S, N221S and F224I led to a small increase in KM compared to the wild-type using pNPGlc, while for Q3 the N220S and N221S mutations decreased KM. The turnover of both pNPGlc and Q3 was increased most by the N221S mutation. Q3 turnover was also increased by mutating N220S, while N221F and W322A led to a dramatic reduction of pNPGlc turnover. The introduced mutations did not significantly affect the thermal stability of the enzyme, which kept an apparent unfolding temperature of 101ï‚°C.

Biography:

Yanhua Liu graduated from China Pharmaceutical University (CPU) with a master’s degree in Microbiology and biochemistry in June 2015. And she’s now studying for a PhD in pharmaceutical analysis at CPU. Her thesis advisers are Dr. Yan and Dr. Chen. She has published more than 3 papers in reputed journals.

Abstract:

Quantum Dots (QDs) are spherical or close spherical nanoparticles often consisting of elements from groups II–VI or III–V of the periodic table. Their grain diameter is general less than 10 nm. They have many advantages over traditional Organic dyes, such as high quantum yield, good photochemical stability, high photobleaching threshold and so on. Recently, QDs as a new kind of fluorescence probe for small molecular compound, biomacromolecule and heavy metal iron have interested analytical workers. Fluorescence quenching of QDs is often used in common application. In our study, Water-soluble CdTe QDs were synthesized with TGA as a modifying agent in aqueous solution. Based on the quenching effect of Carbazochrome Sodium Sulfonate on the fluorescence of CdTe Quantum Dots, a new method for determination of Carbazochrome Sodium Sulfonate, was developed with CdTe Quantum Dots as a fluorescence probe. Under the optimal condition, fluorescence quenching of CdTe QDs had a good liner with concentration of Carbazochrome Sodium Sulfonate, in the concentration range of 1~12ug/ml. The equation was: ln(F0/F)= 44.577-0.0139C, R2=0.9999. The detection limit is 0.67ug/ml. Average recovery was 100.1%. In this paper, water-soluble CdTe QDs were synthesized and capped with TGA by using a simple method. Reaction between QDs and Carbazochrome Sodium Sulfonate was studied. A new method based on the fluorescence quenching of CdTe QDs was developed for Carbazochrome Sodium Sulfonate determination. All experimental data indicated that this method was simple, rapid and exact.

Biography:

M.S. Latha has completed her PhD from Sreechithra Thirunal Institute for Medical Science and Technology, Trivandrum,India in 1998 and postdoctoral studies from University of Medicine and Dentistry of New Jersey, USA. She is the head of the Department of chemistry, in a college affiliated to kerala University. She has published more than 15 papers in reputed journals and has reviewed many papers and presented papers in various national and international conferences. Five students have registered for PhD under her guidance and has guided more than 20 students for doing project work which is a part of the post graduate course.

Abstract:

Green synthesis of nanoparticles is an area of intense scientific and technological interest. Here, a green method is presented for the preparation of nanoparticles using natural honey as the stabilizing agent. Stabilizing agents play an important role in the formation of nonagregatory, stable nanoparticles and it prevent agglomeration during storage. For biomedical application it is necessary that the coating agent should be nontoxic and well tolerated by living cells. Several synthetic reagents have been used to prevent aggregation and keeping the particles in suspension ,including various polymers like polyethylene glycol (PEG), poly(vinylpyrrolidone) (PVP) etc. Compared to polymeric surfactants honey has the advantage that it is nontoxic in nature. Highly stable. nonagregatory nanoparticles of 10-100 nm size were prepared in aqueous medium. Milk protein casein, human serum albumin, alginic acid, chitosan and curcumin nanoparticles were prepared by this method. Synthesised nanoparticles were characterized by Scanning Electron Microscopy, Transmission Electron Microscopy and Dynamic Light Scattering. Interaction of honey with polymer was studied by FTIR. Applications of these nanoparrticles in drug delivery, tissue engineering and water purification were also investigated.The synthesized nanoparticles gave a sustained release of rifampici and curcumin. Alginic acid nanoparticles were found to be highly efficient in removing heavy metals, dyes and microbes from contaminated water. Curcumin nanoparticles, incorporated into alginic acid sheet found application in wound dressing. This work demonstrate a simple, ecofriendly method for the synthesis of versatile nano and micro particles that can be used for various applications like drug delivery, tissue engineering and water purification.

Biography:

Aysel Aydın Kocaeren is an assistant professor at Süleyman Demirel University in Turkey. She Completed her PhD at the age of 28 years from Çanakkale Onsekiz Mart University in Turkey. She has published about 20 papers in reputed journals related to polymers. She has interested in electrochromic polymers and their applications, electrochemical polymerization in recent days.

Abstract:

The compound containing carbazole and thiophene, named as B1 was synthesized with 4- (9H-carbazol-9-yl) phenol and 3,4-dibromo thiophene. Additionally, the electrochemical polymer of B1 was synthesized and coated onto an ITO–glass surface via electrochemical oxidative polymerization. The electrochemical synthesis of the polymer was performed both in 0.05 M LiClO4 supporting electrolyte in AN/BF3EtE (1:1, v/v) and an AN/LiClO4 solvent/electrolyte solution. The spectroelectrochemical and electrochromic properties of this polymer were also investigated for two electrolyte solution systems. The switching ability of this polymer was measured as the percent transmittance (%T) at its point of maximum contrast. According to the electrochromic measurements, the synthesized polymer had a blue color when it was oxidized, and also when it was reduced, it had a transparent color. Additionally, redox stability measurements indicate that the polymer had a high stability and it could be used to produce new polymeric electrochromic devices. The in situ polymerization kinetics related to the synthesized polymer was performed. According to this process, a constant potential of +1.2 V was applied to the polymer film by performing an absorbance measurement for per 10 s. resultantly, it can be said that it is a good candidate for electrochromic devices (ECDs) applications. Additionally, it is suitable for the electrochromic display with relatively low potential (+1.2 V) due to the switching ability of this polymer.

Biography:

Kavita Shah has completed her PhD from Banaras Hindu University and is presently the Director at the Institute of Environment and Sustainable Development, BHU. She has contributed in the area of Environmental Biotechnology, Health and Water Resource Management. She has 70 publications, 02 patent/process and 12 GenBank/protein-model submissions to her credit. She has received Women Scientist Award, BHU-Gold Medal, Japanese-STA-Fellowship, IUBMB Young Scientist Fellowship Award, Swiss Fellowship and Medhavi Chhatra Puraskar. Her important contributions include developing dopamine biosensor; process for purification of rice-peroxidase; multi-stress tolerant tomato lines and Cd/Heat/Salt/SA/JA/NO-induced stress-signaling in rice under changing climate.

Abstract:

Sustainability and environmental safety management involves managing the natural resources optimally and with minimal impact on environment. Human-induced climate change has become a major focus of scientific research because of the potential catastrophic effects on biodiversity, food security and human communities. As a consequence corporate spending on environmental health and safety is increasing. A marked effect of climate change on the global scale demand more intervention of environmental biotechnology and green chemistry to understand the issues at micro-level. The formulation of adaptive strategies together with assessment of the impact of climate change forms the base for climate resilient agriculture globally. With this the cropping pattern of rice growing areas has changed and after harvest a large volume of rice plant residue is left behind which has limited use. This plant residue is rich in enzymes which remains untapped. The present work showcases the use of a plant residue for the development of a dopamine sensor for use of human subjects as a sustainable approach towards management of neurological patients without compromising with the food supply or nature at large. 

Biography:

K Chattopadhyay has completed her PhD in Physiology from University of Calcutta in 2002. She did her Post-doctoral studies in the Department of Chemical Technology of Calcutta University and worked as a Women Scientist (WOS-A) in the same department. Presently she is working as a Women Scientist (WOS-B) in DST project in the Department of Chemistry of Jadavpur University, India. She is also engaged as a Guest Faculty in the Department of Food Processing and Nutrition, IIEST, Shibpur. She has published many papers in reputed international journals. Her field of interest is pharmacology, food & nutrition and natural anti-oxidants.

Abstract:

Curcumin is a well-known anti-inflammatory and antioxidant agent that significantly reduces the nicotine-induced toxicity both at cellular and genetic levels. However, the poor aqueous solubility of curcumin makes it less bio-available that hinders the more possible remediation of curcumin against nicotinic abuse in the target cells. An attempt was made to synthesize nano-curcumin (20-50 nm) that would be more soluble in water with enhanced bioavailability. The prepared nanoparticles of curcumin (Cur-NPs) were characterized by ultraviolet-visible (UV-Vis) spectroscopy, field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD) and Zetasizer techniques. Investigations were performed on the structural modifications of nicotine-triggered two important mammalian proteins (α-lactalbumin: α-LA and Cytochrome-c: Cyt-c) via the interaction of concentration dependent curcumin nanoparticles. It was observed that nicotine significantly affected the structural conformation and optical properties of α-LA and Cyt-c proteins by modifying their structural integrity. Cur-NPs significantly regained the structural integrity of those nicotine-treated proteins as reveled by the results from UV-Visible absorption, intrinsic fluorescence emission and circular dichroism (CD) studies. The isothermal titration calorimetric (ITC) investigation demonstrated that Cur-NPs prevented the nicotine molecules for binding in the active site of those proteins. This was due to the greater binding affinity of curcumin towards α-lactalbumin (-4.87 KCal/mol) and Cytochrome c (-7.64 KCal/mol) proteins in comparisons to nicotine (-4.24 KCal/mol; ~ -5.26 Kcal /mol respectively) as observed in molecular docking studies. This study clearly demonstrated that curcumin in its nano particulate form acted as an efficient ameliorative against nicotine-induced toxicity at cellular levels.

Biography:

Yanhua Liu has graduated from China Pharmaceutical University (CPU) with a Master’s degree in Microbiology and Biochemistry in the year 2015. She is currently pursuing her PhD in Pharmaceutical Analysis at CPU. She has published more than 3 papers in reputed journals.

Abstract:

Quantum dots (QDs) are spherical or close spherical nanoparticles often consisting of elements from groups II–VI or III–V of the periodic table. Their grain diameter is general less than 10 nm. They have many advantages over traditional organic dyes, such as high quantum yield, good photochemical stability and high photobleaching threshold. Recently, QDs as a new kind of fluorescence probe for small molecular compound, biomacromolecule and heavy metal iron have interested analytical workers. Fluorescence quenching of QDs is often used in common application. In our study, water-soluble CdTe QDs were synthesized with TGA as a modifying agent in aqueous solution. Based on the quenching effect of carbazochrome sodium sulfonate on the fluorescence of CdTe quantum dots, a new method for determination of carbazochrome sodium sulfonate was developed with CdTe quantum dots as a fluorescence probe. Under the optimal condition, fluorescence quenching of CdTe QDs had a good liner with concentration of carbazochrome sodium sulfonate, in the concentration range of 1~12 ug/ml. The equation was: ln(F₀/F)=44.577-0.0139C, R²=0.9999. The detection limit is 0.67 ug/ml. Average recovery was 100.1%. In this paper, water-soluble CdTe QDs were synthesized and capped with TGA by using a simple method. Reaction between QDs and carbazochrome sodium sulfonate was studied. A new method based on the fluorescence quenching of CdTe QDs was developed for carbazochrome sodium sulfonate determination. All experimental data indicated that this method was simple, rapid and exact.

Biography:

Qin Ouyang has completed her PhD from Jiangsu University and currently working at Jiangsu University. She has published more than 20 papers in reputed journals.

Abstract:

Chinese rice wine sensory attributes including color, aroma, taste and style play a major role in product acceptability by directly influencing the success of a product in the marketplace. The estimation of the sensory attributes is generally done by human sensory analysis. However, the use of human for sensory evaluation entails several drawbacks, such as fatigue, stress and inconsistence etc. This study aimed to assess the feasibility of using near infrared (NIR) spectroscopy technique as an instrumental evaluation technique for predicting the sensory attributes (i.e., color, aroma, taste and style) in Chinese rice wine. Synergy interval partial least squares (si-PLS) was used to select the optimal spectral intervals and construct models between the NIR spectra and the reference scores of each sensory attribute, respectively. The performance of model was evaluated by the correlation coefficient (Rp) and the root mean square error (RMSEP) in the prediction set. The optimal performance by the si-PLS model for color was Rp=0.8735, RMSEP=0.274; the aroma was Rp=0.8316, RMSEP=0.893; the taste was Rp=0.8791, RMSEP=1.22; and the style was Rp=0.7784, RMSEP=0.557. This work demonstrated that the instrumental test using NIR spectroscopy technique has a high potential in predicting the sensory attributes in Chinese rice wine; it can overcome the drawbacks of human sensory analysis and achieve the objective measurements in a short time in a consistent and cost-effective manner.

Biography:

Maelle Derrien is a PhD student in Food Science at the University Laval in Quebec, Canada. She obtained a degree in Biology and Biochemistry from University of Rennes, France. Her research field is Green Chemistry, in order to valorize crops by product by an ecological extraction of their biomolecules content. For this goal, she uses innovative green chemistry techniques optimized using statistical models. She is a Researcher and Professor at the University of Laval in the Department of Food Science.

Abstract:

Green chemistry, also called sustainable technology, is a major challenge in industry and research. In fact, there is a growing need for more environmentally acceptable processes in the chemical industry. Industrial vegetable by-products contain high levels of valuable phytochemicals that can be use as a great source of biomolecules. The main objective of this project was to develop a sustainable, safe and ecological process, to extract and separate lutein and chlorophyll from spinach by-products respecting the main principles of green chemistry. A saponification in an aqueous medium was carried out in order to hydroxylate the ester bond of the aliphatic chain of chlorophyll. Polar chlorophyll derivatives were thus formed, remaining in the aqueous medium. Lutein, remaining apolar, stayed in the residue and was finally extracted by maceration in 95% ethanol. However, the saponification step was responsible of a significant degradation of lutein. This last stage of separation was consequently studies through response surface methodology in order to determine which saponification parameters gave the highest recovery of lutein in the final ethanolic extract with the lowest amount of chlorophyll. Through this procedure, using the Derringer’s desirability function, the optimal conditions for separation were 16 h of saponification, at 20°C and with 17.2% of sodium hydroxide. This procedure can be streamlined in a commercial extraction process for these compounds.

Biography:

Taiwo is a PhD Analytical Chemistry Student in Olabisi Onabanjo University, Ago-Iwoye, Nigeria, researching on alternative renewable energy from waste agricultural products. Taiwo is an Assistant Chief Technologist in Moshood Abiola Polytechnic, Science Laboratory Technology Department, Chemistry unit, with 15 local and International journal papers, several conference papers and textbooks on water, food, soil, biodiesel, Instrumentation and Laboratory Management. I have strong passion for research, value addition and sustainable development.

Abstract:

Energy, food and environmental security need in sustainable development led to the use of agricultural wastes for similar alternative renewable energy source to fossil fuel. B100 was produced from neat and waste animal fry oil with ethanol, standard and ripe plantain peel potassium hydroxide catalyzed trans-esterification reaction. Physico-chemical and microbial properties of B100 were analyzed using standard laboratory procedures and data analyzed statistically using SPSS version 20.0. The yield ranges from 61 to 73%, viscosity ranged from 0.37±0.00 to 6.64±0.15 at 30^oC (cP). Specific gravity and density ranged from 0.62±0.00 to 0.99±0.01g/ml. Color ranged from 3.55±0.10 to 4.59±0.05 Hz, flash point ranged from 87.45±0.30 to 104.00±1.40^oC. Water and sediment value ranged from 0.10±0.01 to 0.40±0.02%, acid and free fatty acid values ranged from 0.23±0.02 to 1.76±0.03 mgKOH/g. Total alkalinity value ranges from 0.43±0.01 to 0.62±0.01%, total, free and bound glycerin ranged from 0.06±0.01 to 0.47±0.05%. Iodine value ranged from 54.50±1.00 to 61.45±0.50 mg/g, saponification value ranges from 167.60±2.40 to 182.60±1.30 mg KOH/g. Carbon residue ranged from 0.07±0.00 to 0.31±0.03%, sulphur and aluminium concentrations ranged from 0.00±0.00 to 4.10±0.6 mg/kg. Total plate, yeast and mould counts ranged from ‘not detected’ to 7.0×10⁶ cfu/ml and bacterial and fungal isolated were B. Cereus, Klebsiella spp., S. Saprophyticus, Enterobacter spp. and Mucor spp., A. niger and fumigatus. This has helped in value addition by development of economic, ecofriendly biodiesel via waste reduction, recycle and reuse.

Biography:

Ziad Khalifa has obtained his MSc and PhD from the Cairo University, Egypt. He is currently an Assistant Professor of Physical Chemistry at the British University in Egypt. He has been working for UNEP and EU in many development projects for the assessment and control of pollution in the Mediterranean region and West Asia. His main research interests are in the preparation of novel modified electrodes with applications in bio-chemical sensors and batteries. His current research activities are in the fields of green chemistry and control of pollution as well as in the development of new eco-friendly route for recycling of e-wastes.

Abstract:

Glucose biofuel cells are considered a promising power supply with a competent long-term stability and power density. In this respect, novel modified electrodes were fabricated for biofuel cell based on electrochemical polymerization of organic monomer on glassy carbon electrodes. An investigation was carried out on the catalytic electrooxidation of glucose in alkaline media utilizing conducting polymer electrodes modified by incorporation of palladium-nanoparticles (PdNPs) and platinum-nanoparticles (PtNPs) onto poly(1,8-aminonaphthalene) (1,8-PDAN). SEM and EDX analysis depict the homogenous distribution of the metal nanoparticles onto the polymer film. The prepared Pd/PDAN/GC, Pt/PDAN/GC and Pt-Pd/PDAN/GC modified electrodes showed an excellent electro-analytical performance with excellent operation/storage stability. The voltage response exhibited a linear relationship with increase in glucose concentration (2.0 μM to 25.0 mM), with a sensitivity of 160 μA/mM/cm². Higher activity and stability of Pt-Pd/PDAN/GC composite electrode were observed. These versatile kind of modified electrodes render the potential candidates for developing a new generation of glucose biofuel cells.

Biography:

Neeraj R Prasad has completed his PhD from Pune University, India (now Savitribai Phule Pune University). He is currently working as an Assistant Professor at Shivaji University, India. He has published more than 10 papers in reputed journals and has been serving as an Editorial Board Member of repute including Elsevier.

Abstract:

The development of rapid method for green synthesis of nanomaterials is day by day becoming popular among nanotechnologists. In the present study the author has reported synthesis of silver nanoparticles at room temperature using N. tabacum leaf extract. The synthesized nanoparticles have been found to be stable for several months. UV-Visible spectroscopic analysis carried out revealed the formation of silver nanoparticles in reaction mixture. Similarly, the X-ray diffraction analysis confirmed the formation of silver nanoparticles. SEM and TEM imaging unveiled the structural morphology of synthesized nanoparticles to be spherical, non-uniform and polydispersed. EDX analysis of nanoparticles indicated the presence of elemental silver. The synthesized nanoparticle is multi-applicative and showing potential activity against gram negative bacterium Salmonella typhimurium. Synthesized AgNPs can be used for variety of applications such as antifungal, wound healing, textile nanocoating, efficient catalyst for organic transformation and dye degradation, etc. In near future, silver nanoparticles synthesized using green methods may be used in the treatment of infections caused by highly antibiotic resistant microorganisms. The main mechanism considered for green synthesis is plant assisted reduction due to presence of phytochemicals. The major phytochemicals involved are terpenoids, flavones, ketones, aldehydes, amides and carboxylic acids. Flavones, organic acids and quinones are water soluble phytochemicals that are responsible for the immediate reduction of the ions. Studies have revealed that xerophytes contain emodin, an anthroquinone that undergoes tautomerization, leading to formation of the silver nanoparticles. The major mechanism involved is phytochemical assisted reduction of the ions.

Biography:

Virendra K Rathod is a Professor in Chemical Engineering Department at Institute of Chemical Technology, Mumbai, India. His research interest includes green synthesis, extraction of natural ingredients, separation of biomolecules, enzyme-catalyzed reactions and wastewater treatment. He has almost 14 years of teaching and research experience and he has taught various Chemical Engineering subjects which includes Advanced Heat Transfer, Transport Phenomena, Multiphase Reactor Engineering, Chemical Reaction Engineering and Advance Separation Processes. He is a Fellow of Maharashtra Academy of Sciences. He has published around 99 papers in international peer reviewed journal and guided almost 65 MSc and 10 PhD students.

Abstract:

Enzymes are preferred over chemical catalyst for the synthesis of various chemicals as it requires mild reactions conditions. Additionally since enzyme catalyzed processes do not generate any waste material due to high selectivity of enzyme; the process can be labelled as “green process”. This work deals with synthesis of cinnamyl adipate by esterification between cinnamyl alcohol and adipic acid catalyzed by immobilized lipase B from Candida antarctica, commercially known as Novozym 435 in a conventional batch reactor using standard mechanical mixing and in solvent free system. Effects of various parameters such as nature of lipase, speed of agitation, mole ratio, catalyst loading, temperature and reusability of catalyst on the conversion was studied and optimized. Overall conversion of 94.05% was achieved at optimized conditions as reaction time of 12 h, mole ratio of adipic acid to cinnamyl alcohol of 1:3, catalyst loading 1% and reaction temperature of 60°C. It is also observed that the enzyme can be recycled seven times without marginal loss of enzyme activity. To the best of our knowledge, this is first report where enzyme is used as a catalyst for synthesis of cinnamyl adipate. From the progress curve analysis, it was established that the reaction followed the random bi-bi mechanism. There was an excellent agreement between the experimental data and stimulated data. This work will be very useful for synthesis of cinnamyl adipate and many other such chemicals via green route as well as design of batch rector. 

Biography:

Piyabrata Sarkar is a Professor in the University of Calcutta, India. Prof. Sarkar completed his Bachelor and Master’s degrees in Chemical Engineering from Jadavpur University, India. He received his PhD degree from IIT Kanpur in 1991. He has taught Chemical Engineering in Jadavpur University, Indian Institute of Technology, Kharagpur and University of Calcutta in various capacities. He has 30 years of research and teaching experience and is a recipient of INSA, DAAD, Wellcome Trust, Commonwealth Fellowship awards. His areas of research interest include design and applications of electrochemical sensors, removal of toxic heavy metals from drinking water and bioremediation

Abstract:

Microbial fuel cells (MFC) are in the focus of interest for last few decades as an alternative source of electricity generation. These bio-electrochemical systems depends on bacterial metabolism of a variety of organic substrates [1]. The electricity generation in MFC mainly depends upon the microbial electrogenicity. Mixed cultures have been reported to generate greater power using specific compounds or organic matter in wastewater and marine sediment in mediator-less MFCs [2]. In the present study, Pseudomonas sp. BT 302 (NCBI Acc. No.JQ782891) and Comamonas sp. BT UA (NCBI Acc. No.GU265556) were used for utilization of uric acid and generation of electricity. Poultry waste soil contains mainly uric acid along with crude protein, crude fibre, calcium, phosphorous etc. Synthetic media with uric acid were prepared as prototype of poultry waste soil and MFC was constructed in a dual-chamber continuous flow design. Three sets of experiments were continuously run with BT UA pure culture, BT 302 pure culture and both microbes mixed culture for comparative study with respect to power generation. Current generation, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were recorded for investigating the anode-biofilm electron transfer behaviour. Total organic carbon (TOC) was determined to evaluate the feasibility of substrate utilization by bacterial strains. The continuous input flow of fresh media and subsequent discard of waste helped to maintain the bacterial growth at equilibrium (average O.D.600 = 1.879 ± 0.095). Microbes were found acclimatized in the fuel cell within 15-18 h having an average CFU of 2×1012 for M-1, 2.16×1014 for M-2 and 1.51×1016 for M-3. Within this time interval the open circuit voltage (OCV) reached a maximum of 582mV for mixed microbes. After 7 days, utilization of substrate resulted in low uric acid, much higher allantoin and highest amount of urea in the waste soup of MFC. The maximum current density and power density were found to be 78.12 mA m-2 and 13.65mW m-2 respectively for mixed culture with the total anodic volume of 1liter against external load of 10kΩ. The optimal external resistance was found to be 806Ω for all three sets. A uric acid-MFC was successful in achieving moderate cell efficiency and continuous power generation. This continuous flow fuel cell would have potential application in power generation and valuable by-product formation through green route.

Biography:

Abstract:

Introduction: Magnetic resonance imaging have been used nowadays as one of the accepted tool for diagnosis, estimation, and evaluation of many of human diseases; in dentistry, many of prosthodontics patients and "maxillofacial-prosthesis" patients may fall under the category who might be subjected to routine MRI check-up either for follow-up of certain disease or cancer patient for determining the degree of healing or metastasis; thus, there has been growing interest in the research of the possible effect of MRI procedure on different component of dental appliances worn by the patients and one of these components is heat cured acrylic resin.

Aim: The aim of this study is to evaluate the effects of magnetic resonance imaging on mechanical (tensile strength, hardness) physical (color change) chemical (FTIR, NMR) properties at different periods of time exposure.

Materials & Methods: In this study, total 454 samples were prepared from acrylic based heat cured denture material, which were divided into two main groups clear and pink. Each main group was subdivide into 4 groups according to the exposure to MRI control; (5,15 ,30) minute each of the 4 sub-groups underwent different tests like tensile strength, hardness (Rockwell) test, dimensional accuracy test, color change by spectrophotometer, surface roughness, water sorption, residual monomer release by FTIR and NMR.

Results: The results were analyzed by descriptive analysis, analysis of variance, Duncan's multiple range tests and student’s t-test. The results showed that there were changes in the physical properties of heat cured acrylic resin weather it is in pink or clear after exposure to MRI and these changes happened at different levels and variable degrees. It was also shown that there was a slight tendency to change order of arrangement of atoms within each molecular with no well and clear evidence of chemically altering of the main material itself, at least, at circumstances of experiment. 

Biography:

Vivek M Raut has completed his PhD from Pune University Pune, India. He is the HOD of Chemistry Department, Government Vidarbha Institute of Science & Humanities, Amravati, India. He has more than 20 years of teaching & research experiences and published more than 35 papers in reputed international journals. His research area is luminescence and conducting polymer.

Abstract:

The synthesis of new conjugated electroluminescent polyquinoline derivative Poly (2,2-(p-phenyl)-6,6-bis(4-phenylquinoline) [PPPQ], which are soluble in organic solvents and its incorporation in light-emitting diodes as the emissive layer are reported. These electroluminescent devices, containing 1, 1-bis (di-4-tolylaminopphenyl) cyclohexane (TAPC) dispersed in polystyrene as the hole-transport layer, emit bright yellow light (λ_max=554 nm) with quantum efficiency of 0.26% photons/electron and a luminance of 280 cd/m² at a current density of 100 mA/cm². Electroluminescence of moderate brightness was achieved with blue-green, green, yellow, orange, and deep red colors depending on the arylene linkage of the copolymer. The thermal, electrochemical, photophysical, and electroluminescent properties of new polyquinolines varied with the arylene linkage, including p-phenylene, 4, 4-biphenylene, 5, 5-bithienylene. These results also demonstrate that the new polyquinoline is a good electron transport electroluminescent material. Large enhancement in electroluminescence efficiency and brightness of light-emitting diodes fabricated from binary blends of conjugated polyquinolines was observed compared to devices made from the homopolymers. The polymers have thermal properties with glass transitions temperature of 161-339^â—¦C. The electrical properties of the diodes and electric field modulated photoluminescence spectroscopy results confirmed that the enhancement of electroluminescence in the blends originated from spatial confinement of excitons which leads to increased exciton stability and electron hole recombination efficiency. Voltage tunable and composition –tunable multicolor electroluminescence was observed in the polymer blend devices. The observed composition dependent new emission bands and enhanced fluorescence lifetimes in the blends were suggested to originate from exciplex formation and molecular miscibility between the blend components. These results demonstrate new phenomena in the electroluminescence and photophysics of multicomponent conjugated polymers.

Biography:

Pasin founded InTech Environmental Canada Corp in 2004 to compete and distribute green, benzene free, solvents for the parts-washing business. In 2010, InTech developed its own eco-friendly, green solvents for parts washing. In 2011, at the request of a customer, InTech began development of a VOC exempt replacement for Methyl Ethyl Ketone (MEK) which took over 2.5 years to develop. The ground breaking research and development led Mr. Pasin and his team to also develop safe, effective, VOC exempt alternatives for Xylene, Toluene, Acetone and Styrene. Mr. Pasin has been instrumental in the design of new groundbreaking green solvents that are rapidly becoming the standard across many industries. Prior to InTech, Mr. Pasin was President of a progressive paint, coating and wood treatment product manufacturing company for many years. While operating his paint manufacturing company Mr. Pasin recognized the need for improved technologies that improved safety for workers and end users and lessened environmental impact. Mr. Pasin is very active in his community, participating in various amateur sports, coaches football and is involved in many community and service organizations such as Lions International.

Abstract:

The purpose of this paper is to review new MIR & VOC regulations in various jurisdictions within the United States and how the use of green solvents will help manufacturers meet them. It also looks at what constitutes a Green Solvent, the differences between what are classed as Green Solvents, their safety and use in a variety of applications which range from formulation, surface preparation and cleaning. The paper will examine the short and long term effects of the new regulations, the effect of typical solvents on the health of the worker and the environment and how green solvents solve many issues for manufacturers. The uses of Green Solvents will also the company to reduce it regulatory burdens, improve regulatory compliance, improve its public relations and sales and improve productivity through reducing workplace exposure and injuries related to exposure to toxic solvents. 4 Learning Objectives i) understanding how new regulations effect manufacturers ii) What is a green solvent iii) Using Green Solvents effectively iv) How green Solvents can be profitable

Biography:

Behruz Barfi has completed his PhD at the age of 34 years from Semnan University. He has published more than 22 papers in reputed journals and has been serving as an editorial board member of repute.

Abstract:

Industrial chemical products and machinery are part of the technology that is causing major environmental problem. Their assessment at all stages, from raw materials acquisition, to manufacture and disposal need to be evaluated and quantified. For a holistic approach of the subject scientists established the scientific method called Life Cycle Analysis (LCA). LCA is also known as life-cycle eco-balance. It is a technique to assess environmental impacts associated with all the stages of a product's life, from-cradle-to-grave (i.e., from raw material extraction, manufacture, distribution, use, repair, disposal or recycling). The process of LCA of a product is a systematic process which takes into account all the stages in the making of a product. It starts from the raw materials, the step by step industrial processes, the useful life as a consumer product and its final stages through maintenance, recycling or disposal. The LCA process is a systematic, phased approach and consists of four components: goal definition and scoping, inventory analysis, impact assessment, and interpretation of the results. Herein, we will attempt to give insights into the currently Role of green chemistry in life cycle analysis of industrial products as a systematic process and summarize the resulting findings in this area, emphasizing on components of this process.

Biography:

Brindaban Chandra Ranu started his independent research career in 1985 at Indian Association for the Cultivation of Science, Kolkata, India after completion of his Ph.D. (Jadavpur University, India) and postdoctoral studies (Virginia Tech, USA). He has been promoted to the post of professor in 1996 and Senior Professor in 2006. Currently he is INSA Senior Scientist and J C Bose National Fellow at the same Institute. His primary research interest lies in Green Synthesis and Green Catalysis. He has published more than 257 papers in reputed journals with an h-index of 52. He is a fellow of INSA and IASc.

Abstract:

Metals play an important role as catalyst in organic synthesis and have been instrumental in many key transformations. Several noble and expensive metals such as platinum, gold, silver and palladium have been demonstrated to catalyze many important reactions. However, for better cost management and environmental concern use of less expensive and more environment friendly metals is desirable. Thus, the main focus of our group’s activity is directed to benign and inexpensive metal catalyzed C-C and carbon-heteroatom bond formation leading to the synthesis of bioactive molecules. For example, we have developed a recyclable heterogeneous catalyst of Cu(II) anchored on Al2O3 surface, that has been successfully used for several reactions. One of them is Cu(II)/Al2O3 catalyzed solvent controlled selective N-arylation of cyclic amides and amines leading to important scaffolds of potent therapeutic agents (Chem-Euro J., 2013, 19, 15759). We have also developed a novel concept of using two appropriate inexpensive metals in place of expensive metal like palladium and ligand, where one metal takes active part in catalysis and other one is assisting the process. Using this protocol copper-assisted nickel catalyzed ligand free Csp-Csp and Csp-Csp2 cross-coupling providing a direct access to unsymmetrical 1,3-diynes and en-ynes (Chem. Commun. 2014, 50, 15784), and Co/Cu catalyzed C(sp2)-O cross-coupling (Chem-Euro J. 2015, 21, 8727) have been achieved among others, Our another approach is to design metal free reaction which is traditionally mediated by metals. Thus, we have developed a visible light photocatalyzed direct conversion of aryl/heteroaryl amines to selenides at room temperature ( Org. Lett., 2014, 16, 1814)

Biography:

Hong Ren received her PhD from Michigan State University, and was a Joint postdoctoral researcher at Harvard University and Harvard Medical School. Hong joined Merck Process Chemistry, Rahway, in 2014, where she is currently a Senior Scientist working on the design and development of novel synthetic routes to drug candidates. Hong’s professional career at Merck has focused on applying innovative chemistry solutions to the development of cost-effective and sustainable pharmaceutical manufacturing processes.

Abstract:

The development of an innovative and sustainable commercial manufacturing process of an API (active pharmaceutical ingredient) will be presented. The presentation will highlight key chemistry innovations and detail their impact on producing a more efficient, more productive, higher yielding, and greener manufacturing process. In addition, the presentation will highlight the positive impact of a streamlined process on reducing overall manufacturing time and energy consumption.

Biography:

Vivek M.Raut has completed his PhD at the age of 27 years from Pune University Pune (MS) India. He is the H.O.D. of Chemistry Dept, Government Vidarbha Institute of Science & Humanities Amravati (MS) India. He has having more than 20 years of Teaching & research experiences. He has published more than 35 papers in reputed International journals. He has attended International conf. in Tokoshima Japan in 2011, Busan South Koria in 2014,And Mosco Russia in 2015 along with conf. in India. His research Area is Luminescence And conducting Polymer. He got Best Research Publication Award in International conf.

Abstract:

The synthesis of new conjugated electroluminescent polyquinoline derivative Poly (2,2-(p-phenyl)-6,6-bis(4-phenylquinoline) [PPPQ], which are soluble in organic solvents and its incorporation in light - emitting diodes as the emissive layer are reported. These electroluminescent devices, containing 1, 1- bis (di-4-tolylaminopphenyl) cyclohexane (TAPC) dispersed in polystyrene as the hole-transport layer, emit bright yellow light (λmax =554 nm) with quantum efficiency of 0.26% photons/electron and a luminance of 280 cd/m2 at a current density of 100 mA/cm2. Electroluminescence of moderate brightness was achieved with blue-green, green, yellow, orange, and deep red colors depending on the arylene linkage of the copolymer. The thermal, electrochemical, photophysical, and electroluminescent properties of new polyquinolines varied with the arylene linkage, including p-phenylene, 4, 4-biphenylene, 5, 5-bithienylene. These results also demonstrate that the new polyquinoline is a good electron transport electroluminescent material. Large enhancement in electroluminescence efficiency and brightness of light-emitting diodes fabricated from binary blends of conjugated polyquinolines was observed compared to devices made from the homopolymers. The polymers have thermal properties with glass transitions temperature of 161-339â—¦C. The electrical properties of the diodes and electric field modulated photoluminescence spectroscopy results confirmed that the enhancement of electroluminescence in the blends originated from spatial confinement of excitons which leads to increased exciton stability and electron hole recombination efficiency. Voltage tunable and composition –tunable multicolor electroluminescence was observed in the polymer blend devices. The observed composition dependent new emission bands and enhanced fluorescence lifetimes in the blends were suggested to originate from exciplex formation and molecular miscibility between the blend components. These results demonstrate new phenomena in the electroluminescence and photophysics of multicomponent conjugated polymers.

Biography:

Muhammad Arif Nadeem was awarded his PhD degree from University of New South Wales (UNSW), Sydney, Australia in 2011, under the supervision of A/Prof. John A. Stride. After finishing doctorate, he moved back to Islamabad where he joined department of Chemistry, Quaid-i-Azam University, a top ranked university in Pakistan, as Assistant Professor. His research work mainly focuses on the design and applications of metal-organic frameworks (MOFs). However, he is turning these hybrid materials into advanced functional materials for future energy based challenges. Currently, he is trying to produce novel materials derived from MOFs for fuel cell applications.

Abstract:

Metal-organic frameworks (MOFs) are exciting class of materials which showed their potential in variety of applications such as gas adsorption, magnetism, catalysis etc. We are trying to explore the possibilities of converting as synthesized MOFs towards energy conversion materials. A variety of porous carbon (PC) samples were prepared by direct carbonization of variety of porous metal-organic frameworks at various temperatures under inert atmosphere. The synthesized carbon materials were checked for super capacitive behavior. Furthermore high surface area PC was deposited with PtM (M = Fe, Ni, Co and Cu (20%) metal loading) nanoparticles by using polyol reduction method and different catalysts were designed for direct ethanol and methanol fuel cell (DEFC) applications. The results showed that PtFe/PC catalyst combination exhibited superior performance amongst the other options. The electrocatlytic capability of the catalyst for ethanol electroxidation was investigated using cyclic voltammetry, and direct ethanol single cell testing. The results were compared with that of Pt-Fe and Pt supported on Vulcan XC 72 carbon catalysts (Pt-Fe/XC-72 and Pt/XC-72) prepared via same method. The catalyst PtFe/PC developed in this work showed outstanding normalized activity per gram of Pt (6.8 mA/gPt) and superior power density (121 mW/cm2 at 90 °C) compared to commercially available carbon supported catalysts. The current work is in progress for the testing of other cheap metal combinations. The new field has attractive position in the field of fuel cell applications.

Biography:

Siva Böhm received his first degree in Berlin as Dipl. Eng , MSc in Applied Chemistry at Hahn Meitner Institute (MPI) in Berlin, Germany, and obtained his PhD (University of Bath, UK), Siva then worked as Research fellow as at different institutions; University of Wales Swansea, TU-Delft, University of Birmingham on various aspects of metal localised corrosion, protective coating and graphene / 2D materilas and applications. Siva is currently working as Honorary visiting professor in IIT Bombay and Guide for many Mtec / PhD students, as well as teaching Protective coating / Surface Engineering and previous to this role he is a Principal Scientist in Tats on product development and applications on numerous areas Graphene applications & Fuel cells technology. Siva is a chartered Chemist and Member of Royal Society of Chemistry since 1994, and Fellow Technical, Surface Coating.

Abstract:

Corrosion has been a perennial issue of concern for the manufacturing industry. Chromate (VI) conversion coatings are well known pre-treatment coatings for steel but due to environmental concerns and legislations, their use and application has been restricted. This has led to a growing demand and need for an economically viable and eco-friendly pre-treatment coating. Graphene based anti corrosion coatings have been developed which can provide an eco-friendly alternative while also improving the overall performance of the coating system. Energy and Environment are key areas of technology for many Tata Group companies such as Tata Steel. Coating plays a vital role in improving surface quality and providing protection for the metal substrates. Graphene, a newly discovered carbon allotrope, received worldwide attention due to its exceptional properties owing to its unique structure. It is a very promising new generation of material that can trigger the fabrication of advanced coatings with much different functionality. In this work, utilization of graphene in advanced coatings for metal, Tata patented technology will be presented giving emphasis on the corrosion protection. A corrosion inhibitive coating composition was developed for metal substrate, which comprises monolayer and multi-layer graphene stacks and a coupling agent consists of an organo functional siloxane. Durability performance were studied this Cr(VI) free system against the commercially available system using electrochemical and accelerated corrosion testing. The future perspectives of graphene based coatings for industrial application and the importance with academics collaborations on specific areas of graphene research will be briefly discussed.

Biography:

Sabu Thomas is the Director of the International and Interuniversity Centre for Nanoscience and Nanotechnology and full professor of Polymer Science and Engineering at the School of Chemical Sciences of Mahatma Gandhi University, Kottayam, Kerala, India. He is an outstanding leader with sustained international acclaims for his work in Polymer Science and Engineering, Polymer Nanocomposites, Elastomers, Polymer Blends, Interpenetrating Polymer Networks, Polymer Membranes, Green Composites and Nanocomposites, Nanomedicine and Green Nanotechnology. Professor Thomas has received a number of national and international awards. He has published over 700 peer reviewed research papers, reviews and book chapters. He has co-edited 50 books and is the inventor of 5 patents. He has supervised 73 PhD thesis and his H index is 76 with nearly 24,332 citations.

Abstract:

The talk will concentrate on various approaches being used to engineer materials at the nanoscale for various applications in future technologies. In particular, the case of clay, carbon nanostructures (e.g. nanotubes, graphene), metal oxides, bionanomaterials (cellulose, starch and chitin) will be used to highlight the challenges and progress. Several polymer systems will be considered such as rubbers, thermoplastics, thermoetts and their blends for the fabrication of functional polymer nanocomposites. The interfacial activity of nanomaterials in compatibilising binary polymer blends will also be discussed. Various self assembled architectures of hybrid nanostructures can be made using relatively simple processes. Some of these structures offer excellent opportunity to probe novel nanoscale behavior and can impart unusual macroscopic end properties. I will talk about various applications of these materials, taking into account their multifunctional properties. Some of the promising applications of clay, metal oxides, nano cellulose, chitin, carbon nanomaterials and their hybrids will be reviewed. Finally the effect of dewetting up on solvent rinsing on nano scale thin films will also be discussed.

Biography:

Khalifa obtained his MSc and PhD at the Cairo University. He is currently Assistant Professor of Physical Chemistry at the British University in Egypt. Also, he has been working for UNEP and EU in many development projects for the assessment and control of pollution in the Mediterranean region and West Asia. His main research interests are in the preparation of novel modified electrodes with applications in bio-chemical sensors and batteries. His current research activities are in the fields of green chemistry and control of pollution, as well as in the development of new eco-friendly route for recycling of E-wastes.

Abstract:

Glucose biofuel cells are considered a promising power supply with a competent long-term stability and power density. In this respect, novel modified electrodes were fabricated for biofuel cell based on electrochemical polymerization of organic monomer on glassy carbon electrodes. An investigation was carried out on the catalytic electrooxidation of glucose in alkaline media utilizing conducting polymer electrodes modified by incorporation of palladium-nanoparticles (PdNPs) and platinum-nanoparticles (PtNPs) onto poly(1,8-aminonaphthalene) (1,8-PDAN). SEM and EDX analysis depict the homogenous distribution of the metal nanoparticles onto the polymer film. The prepared Pd/PDAN/GC, Pt/PDAN/GC and Pt-Pd/PDAN/GC modified electrodes showed an excellent electroanalytical performance with an excellent operation/storage stability. The voltage response exhibited a linear relationship with increase in glucose concentration (2.0μM to 25.0mM), with a sensitivity of 160 μA/mM/cm2. Higher activity and stability of Pt-Pd/PDAN/GC composite electrode were observed. These versatile kind of modified electrodes render the potential candidates for developing a new generation of glucose biofuel cells.

Biography:

Neeraj R Prasad has completed his PhD at the age of 35 years from Pune University now known as Savitribai Phule Pune University and working as Assistant Professor in Shivaji University , Kolhapur. He has published more than 10 papers in reputed journals and has been serving as an editorial board member of repute including Elsevier.

Abstract:

The development of rapid method for green synthesis of nanomaterials is day by day becoming popular among nanotechnologists. In the present study the author has reported synthesis of silver nanoparticles at room temperature using N. Tabacum leaf extract. The synthesized nanoparticles have been found to be stable for several months. UV- Visible spectroscopic analysis carried out revealed the formation of silver nanoparticles in reaction mixture. Similarly, the X-ray diffraction analysis confirmed the formation of silver nanoparticles. SEM, and TEM imaging unveiled the structural morphology of synthesised nanoparticles to be spherical, non-uniform, and polydispersed. EDX analysis of nanoparticles indicated the presence of elemental silver. The synthesized nanoparticle is multi-applicative and showing potential activity against gram negative bacterium Salmonella typhimorium. Synthesized AgNPs can be used for variety of applications such as Antifungal, Wound Healing, Textile Nanocoating, efficient catalyst for organic transformation and dye degradation etc. In near future, silver nanoparticles synthesized using green methods may be used in treatment of infections caused by highly antibiotic resistant microorganisms. The main mechanism considered for green synthesis is plant assisted reduction due to presence of phytochemicals. The major phytochemicals involved are terpenoids, flavones, ketones, aldehydes, amides and carboxylic acids. Flavones, organic acids and quinones are water soluble phytochemicals that are responsible for the immediate reduction of the ions. Studies have revealed that xerophytes contain emodin, an anthroquinone that undergoes tautomerization, leading to formation of the silver nanoparticles. The major mechanism involved is phyto-chemical assisted reduction of the ions.

Biography:

Laleh Bahadori has completed her PhD in Chemical Engineering at University of Malaya, Kuala Lumpur, Malaysia and she is continuing her postdoctoral studies now. She is currently working as a postdoctoral research fellow in the scientific sector of Materials Science, Electrochemistry and Energy at the University of Malaya.

Abstract:

Three different deep eutectic solvents (DESs) synthesized from ammonium salts are employed as electrolytes for an H-type redox battery using vanadium acetylacetonate [V(acac)3] as the electro-active species. Preliminary investigation show that the highest solubility of [V(acac)3] is in a DES made from choline chloride and ethylene glycol (ethaline). Cyclic voltammetry indicate that ethaline is stable in an operating potential range of -1.8 to +1 V. The diffusion coefficients of V(acac)3 in the electrolyte has been estimated to 0.69 cm2s-1 at room temperature. Charge/discharge performance using the static H-type electrochemical cell gives coulombic efficiencies near 50%. In comparison to results obtained with acetonitrile as a solvent, the DES seems to show similar performance (despite being cycled at least 12 times). This is encouraging because DES is safer to work with and significantly more environment friendly than acetonitrile.

Biography:

TBA..!!

Abstract:

Introduction :magnetic resonance imaging have been used nowadays as one of the accepted tool for diagnosis, estimation, and evaluation of many of human been disease; in dentistry, many of prosthodontics patients and "maxillofacial-prosthesis" patients may fall under the category who might be subjected to routine "MRI" check-up either for follow-up of certain disease or cancer patient for determination the degree of healing or metastasis, thus, there has been growing interest in the research of the possible effect of "MRI" procedure on different component of "dental appliances" wears by those patients and one of these components is "heat cured acrylic resin". Aims: the aims of this study were to evaluate the effects of "magnetic resonance imaging" on mechanical (tensile strength, hardness) physical (color change) chemical (FTIR, NMR) properties at different periods of time exposure. Material and methods: total samples of (454) were prepared from acrylic based heat cured denture material, which divided into two main groups "Clear, Pink", each main group was subdivide, into four groups according to exposure to "MRI" control;(5,15 ,30)minute each of the four sub-groups undergo different tests" tensile strength, hardness(Rockwell) test, dimensional accuracy test, color change by spectrophotometry, surface roughness, water sorption, residual monomer release "FTIR" and "NMR". Results: the results were analyzed by descriptive analysis, analysis of variance, Duncan's multiple range test and student "t" test. The results showed that there were changes in the physical properties of "heat cured" acrylic resin weather it is "Pink or Clear" after exposure to "MRI" and these changes happened at different levels and variable degrees, also it was shown that there was a slight tendency to change order of arrangement of atoms within each molecular with no well and clear evidence of chemically altering of the main material itself, at least, at circumstances of experiment.

Biography:

Hikmat S. Hilal is a distinguished professor of inorganic and materials chemistry. He completed his PhD study from Manchester University in 1980, and since then he joined the faculty of chemistry at An-Najah National University. He published more than 100 journal papers, conference proceedings, book chapters and books, in the areas of thermal and photochemical catalyst enhancement. Hilal supervised (co-supervised) more than 50 graduate student theses. He established academic links with many labs in Africa, Asia, Europe and America.

Abstract:

According to the WHO, pure natural drinking waters, are scarce (less than 2% in nature). Water is contaminated with different hazards, including organic compounds (dyes, phenol derivatives, chlorinated hydrocarbons, industrial dyes, pharmaceutical wastes, humic acid, etc.) and microorganisms (bacteria). Small and large-scale purification techniques, such as chlorination, ozonation, hydrogen peroxide oxidation, reverse osmosis, UV irradiation, etc, are used. Such processes are effective, but costly, and not available to many third world countries. Chlorination produces chlorinated hydrocarbons in the municipality sewage. Advanced Oxidation Processes (AOP) which involve oxidation of contaminants by solar radiation are promising alternative. AOPs rely on the safe stable low cost TiO2 and ZnO nano-particle, as catalysts in photo-degradation of contaminants. Such materials have large wide bad gap values (~3.2 eV, 387 nm) and demand UV radiations to function. In this plenary, the feasibility of using TiO2 and ZnO nano-particles in complete mineralization of organic contaminants will be assessed. Ongoing activities to sensitize TiO2 and ZnO to visible solar light (main part of solar light), with synthetic dyes or quantum dots, will be critically assessed. Using natural dye sensitizers, as safe alternatives, will also be highlighted. Complete mineralization of organic contaminants with natural-dye sensitized photo-catalysts will be discussed. Ability of the sensitized particles to completely mineralize gram negative bacteria, and the organic matters that result from their death, will also be presented for the first time. Feasibility of using these safe practices at large scale will be assessed.