Invited speakers - 2
Prof. Garnpimol C. Ritthidej - Faculty of Pharmaceutical Sciences, Chulalongkorn University - Thailand
Biographical notes
Garnpimol C. Ritthidej received her bachelor degree in Pharmacy from Chulalongkorn University, Thailand and doctoral degree in Industrial Pharmacy from St. John’s University, USA. Since then she has joined the Faculty of Pharmaceutical Sciences, Chulalongkorn University and became a full Professor of Industrial Pharmacy in 2003. She was appointed as Associate Dean for Research and Chairman of the Department of Manufacturing Pharmacy. She also served as the Chartered President of Controlled Release Society, Thailand Chapter and an executive committee of Society of Microencapsulation. Her main interest in research is drug delivery using biomaterials, both polymers and lipids as controlled delivery systems. Recent interest is extended to vaccine/DNA delivery using micro/nanocarriers of biomaterials.
Biopolymeric micro/nanoparticles for drug and protein delivery
The presentation will focus on using chitosan to control delivery of therapeutic agents via oral, nasal transdermal and parenteral routes which can be achieved by various encapsulation and matrix techniques. Examples of coated tablet, patch, micro/nanoparticles of various therapeutic agents including vaccine and DNA delivery systems will be presented.
Assoc. Prof. Anuvat Sirivat - The Petroleum and Petrochemical College, Chulalongkorn University - Thailand
Biographical notes
Anuvat Sirivat has gained his Ph.D. in Mechanical Engineering from Cornell University. He worked at the University of Pittsburgh (USA) for 7 years and then moved to Thailand. Now he works at the Petroleum and Petrochemical College as the head of Conductive and Electroactive Polymer Research unit.
Effect of Dielectric Constant and Electric Field Strength on Dielectrophoresis Force of Acrylic Elastomers and Styrene Copolymers
The effects of dielectric constant and electric field strength on the deflection angle and the dielectrophoresis force of acrylic elastomers and styrene copolymers were investigated. The dielectrophoresis forces of six elastomers were determined in a vertical cantilever fixture by measuring the deflection distance under various electric field strengths.
Assoc. Prof. Sujitra Wongkasemjit - The Petroleum and Petrochemical College, Chulalongkorn University - Thailand
Biographical notes
Sujitra Wongkasemjit gained her Ph.D.(Org.Chem) from West Virginia University, USA in 1988. She has been working at the Petroleum and Petrochemical College since 1989 and is currently the head of the Syntheses and Applications of Organometallics Research Unit.
Synthesis and Applications of SBA-1 Directly from Silatrane via Sol-gel Process
Silatrane was used as a precursor for SBA-1 synthesis at room temperature using alkyltrimethylammonium bromides, CnTMAB (n = 14-18), as templates in dilute solutions. The influences of acidity, alkyl chain length of the surfactant and synthesis temperature were studied.
Assoc. Prof. Vittaya Amornkitbamrung - NANOTEC Center of Excellence at Khon Kaen University - Thailand
Biographical notes
Vittaya Amornkitbamrung was born in Nongkhai, Thailand, on June 22, 1956. He received a Ph.D. degree in Physics in 1987 from Chulalongkorn University, Bangkok, Thailand.
He is working as the Head of Integrated Nanotechnology Research Center, and he teaches as an Associate Professor at Khon Kaen University, Thailand. His research topics mainly focus on the deposition and characterization of diamond and diamond-like carbon films prepared by RFCVD and HFCVD.
Diamond-like Carbon Film for Biomolecular Sensors
Radio Frequency Chemical Vapor Deposition (RFCVD) preparation was used to produce diamond-like carbon (DLC) films to fabricate a simple device for biological molecule detection. Since the charge transfer efficiency through the molecule of DNA is dependent on the DNA sequence, the substrate prepared by RFCVD then becomes a candidate for a simple method to fabricate microchips for DNA molecule detection.
Dr. Thevarak Rochanapruk - Project Director - PTT Phenol Co. Ltd.
Biographical notes
Dr. Thevarak Rochanapruk has been project director for PTT Phenol since March 2006. He is solely responsible for the new Bisphenol-A project worth over US$250 million with largest world single train capacity of 150,000 per annum. His past experience in the petrochemicals and polymers span over 24 years in the USA and Thailand. He is also the current Vice President for the Chemical Engineering Committee of the Engineering Institute of Thailand. Dr, Thevarak obtained his Ph.D. from Rensselaer Polytechnic Institute , New York. USA where he obtained funding from the Petroleum Research Fund USA.
Bisphenol-A Technology; A Greener and Cleaner Process Review
Bisphenol –A (BPA) has been commercially produced since the late 1960’s. The chemical can be synthesized by a simple acid catalyzed condensation between phenol and acetone. The initial technology involved the use of mineral acids such as hydrochloric or sulfuric acid as catalyst, rendering the process to be highly corrosive thus shortens the plant life span. In addition, the corrosive by products have to be completely neutralized which further increase the process cost of production. Current technology employs the use of less corrosive ion exchange resin with either incorporated or “in situ” injection of the co-catalyst.
Assoc. Prof. Vissanu Meeyoo - Centre for Advanced Materials and Environmental Research, Mahanakorn University of Technology - Thailand
Biographical notes
Vissanu Meeyoo is Associate Professor of Chemical Engineering and Director of the Centre for Advanced Materials and Environmental Research. His research interests are in two areas:
Catalysis: Hydrogen production, Catalytic combustion and Catalytic Wet Oxidation
Energy: Pyrolysis and Product Upgrading
Hydrogen production over Ce/Zr mixed oxide catalysts for onboard applications
The use of proton exchange membrane (PEM) fuel cells as a potential replacement for conventional combustion engines or an auxiliary power unit in automobiles has drawn tremendous attentions.
In this presentation, mixed oxide solid solution catalysts (Ce/Zr), which possess good redox properties as self-cleaning catalysts, are introduced for use in hydrogen production via different systems. The effects of dopants on the catalyst properties, activity, and deactivation will be discussed in details.
Assoc.Prof. Dr Supon Ananta - Department of Physics and Materials Science, Chiang Mai University - Thailand
Biographical notes
Dr. Supon Ananta has been teaching at the Department of Physics and Materials Science, Chiang Mai University for 10 years after obtaining an MSc (Ceramic Engineering) and a PhD (Materials Science) from the University of Leeds (UK). His most significant contributions are in the field of ceramic processing including synthesis of powders, fabrication of ceramics and ceramic-nanocomposites. Area of interest also lies in the study of the relationships between processing, phase formation, microstructure and properties of advanced ceramics, especially perovskite-based smart ceramics and dental porcelain ceramics.
Microstructural Design of Smart Perovskite Ferroelectric Ceramics for Electroceramic Applications
The largest group of ferroelectric and related smart materials are based on the perovskite structure. However, pure and dense PT ceramics are regarded to be one of the most difficult Pb-based perovskite ferroelectric ceramics to produce. In this presentation, several microstructural design techniques including two-stage sintering and ceramic-nanocomposite developed for the production of PT-based ceramics will be addressed. Their influences on phase formation, densification, microstructure and dielectric properties of the final products will be discussed and compared with the conventional method.
Assoc. Prof. Santi Maensiri – Integrated Nanotechnology Research Center and Dept. of Physics, Khon Kaen University - Thailand
Biographical notes
Dr. Santi Maensiri received his D.Phil. degree in Materials Science from Oxford University in 2001. He is currently a group leader of the Small & Strong Materials Group (SSMG), Solid State Physics Laboratory, Department of Physics, Faculty of Science. He is also one of the main researchers of the Integrated Nanotechnology Research Center (INRC), Khon Kaen University. His research of interest is in the fields of Materials Physics and Nanomaterials, which focus mainly on the fabrication, synthesis, physical and biological properties, and applications of materials. The materials of interest include: 1) functional nanostructured materials of ceramic compounds, metal oxides, and nanocomposites, 2) diluted magnetic semiconductors and magnetic nanoparticles for medical applications, 3) giant dielectric ceramics and nancomposites, and 4) electrospun nanofibers of ceramics, polymers, and nanocomposites for electronic device, environmental, energy, and medical and pharmaceutical applications.
Fabrication and Properties of Electrospun Ceramics and Carbon Nanostructures
Electrospinning represents a simple and convenient method for preparing polymer and ceramic nanostructures. The relatively high production rate and simplicity of the setup makes electrospinning highly attractive to both academia and industry. A variety of nanostructures (either in the forms of nanofibers or nanoparticles) can be made for applications in energy storage, healthcare, biotechnology, environmental engineering, and defense and security. This talk presents the fabrication of nanostructures of advanced ceramic compounds and carbon by electrospinning technique. In this talk, the electrospinning set up as well as experimental procedure are described in details. The fabrication of nanostructures of dielectric perovskite (Ba, Sr)TiO3, thermoelectric oxide NaCo2O4, TiO2-based, spinel ferrites (MFe2O4), and carbon nanofibers with diameter of ~100-300 nm are demonstrated. The fabricated nanostructures are characterized by TG-DTA, X-ray diffraction, Fourier transform infared spectroscopy, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, and vibrating sample magnetometry. The potential applications of these nanostructures are proposed.
Dr. Srung Smanmoo - Valaya Alongkorn Rajabhat University - Thailand
Biographical notes
Dr. Srung holds a BSc and an MSc from the University of Wollongong (AU). He obtained a PhD from the University of Sheffield (UK) working on Asymmetric Phosphorylation. After his PhD, he carried out postdoctoral research at Nagasaki University (JP) on Detection of Proteins and Genes on a Solid-Phase Membrane. He is now with the university of Valaya Alongkorn Rajabhat University Under The Royal Patronage.
From Non-Asymmetric Phosphorylation to Regioselective Phosphorylation
A number of biologically active molecules contain phosphate esters and the preparation of such species is of interest and challenge to synthetic chemists. The preparation of phosphate esters is normally achieved by employing enzymatic processes, although the stability of the catalyst is sometimes problematic. This talk will discuss a new method of preparing achiral N-phosphoryl oxazolidinones and the evaluation of these reagents in phosphoryl transfer reactions.
Dr. Sanong Ekgasit - Thailand
Biographical notes
Sanong Ekgasit obtained his B.Sc. degree in Chemistry and M.Eng. in Polymer Science and Engineering from Chulalongkorn University, Thailand, and Ph.D. in Polymer Science and Engineering from Case Western Reserve University, USA. His research interests are in the area of Molecular Spectroscopy and Nanomaterials. The molecular spectroscopy researches involves applications of infrared and Raman spectroscopy for gemstones, polymers, forensic, and trace contamination analyses. His researches on nanomaterials involve synthesis and characterization of functional precious metals (silver, gold, platinum, and palladium) nanoparticles. He has applied the principles of green chemistry and green engineering for the green nano-synthesis of advance functional nanomaterials using renewable natural resources as the reducing agent.
Novel chemical synthesis of silver nanoplates with unique optical properties
We have developed a novel chemical technique for the conversion of spherical silver nanoparticles in to silver nanoplates (i.e., nanodisk, hexagonal nanoplate, truncated triangular nanoprism, and triangular nanoprism). By changing the concentration and temperature of the reacting media (i.e., the spherical silver nanoparticles colloid and the shape-converting agent), the plasmon extinction of the final colloid of silver nanoplated could be tuned from yellow into red (nanodisk), pink (hexagonal nanoplate), purple (truncated triangular nanoparism), and blue (triangular nanoprism). Optical properties and morphology of the shaped nanoparticles were investigated by surface plasmon resonance spectroscopy, transmission electron microscopy, scanning electron microscopy, and atomic force microscopy.
Assoc. Prof. Jitladda Sakdapipanich - Department of Chemistry, Mahidol University, Bangkok - Thailand
A Clean Technology to Produce Functionalized Low Molecular-weight Natural Rubber Latex Using Nametric TiO2 Film
Natural rubber (NR) is a high molecular-weight (MW) hydrophobic polymer, which can not be easily dissolved in several kinds of solvent, leading to the limitation of usage. NR latex containing low MW and reactive-terminal group is another interesting form to extend the application of NR. In this study, a photochemical degradation of NR using H2O2, TiO2 film and UV irradiation was applied to prepare the hydroxylated low MW NR (LNR). A self-prepared TiO2 film was applied in order to re-use for the present work. Moreover, the photosensitivity of the self-prepared TiO2 film was determined by using methylene blue stock solution and UV/VIS spectrophotometer.
