Day 1 :
Keynote Forum
Xiang Zhang
University of Cambridge, United Kingdom
Keynote: New concept of resorbable biopolymer hybrids for implant applications
Time : 10:00-10:25
Biography:
Abstract:
The main topics covered in the presentation include:
1. New concepts of resorbable polymer hybrids for medical applications;
2. Synthesis of resorbable bio-copolymers with tailored mechanical properties and degradation rate, copolymers of which include polylactide, polycaprolactone and poly(ethylene glycol);
3. Synthesis of resorbable phosphorus/silicon-based bioglasses;
4. Design and development resorbable polymer hybrids consisting of organic and inorganic nano-composites;
5. Therapeutic polymer hybrids: drug-loaded resorbable polymer hybrids;
6. Clinical and bio-evaluations of drug-loaded resorbable polymer hybrids
7. Case studies: new medical implants and future development
Keynote Forum
Rachel Auzely-Velty
University Grenoble Alpes, France
Keynote: Novel approaches in hydrogel design from chemically-modified polysaccharides
Time : 10:25-10:50
Biography:
Abstract:
Keynote Forum
Mubarak Ahmad Khan
Atomic Energy Research Establishment, Bangladesh
Keynote: Radiation Processed Textile Sludge for Preparing Eco-friendly Bricks
Time : 10:50-11:15
Biography:
Dr. Mubarak Ahmad Khan is Chief Scientific Officer (CSO) and Director General, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission. He did his Ph.D. in Radiation and Polymer Chemistry. He is working in several promising areas of Radiation Chemistry and Processing Technology, natural fiber reinforced polymer composites, nanotechnology, material science, biomedical science, applied science etc. Also experience in fiber reinforced polymer composite materials for various applications such as parts and body of auto car, panelized constriction materials, and bodies of electric appliances. Totally biodegradable composite materials based on natural fibers and degradable (both and synthetic) thermoplastic and resin for biomedical purposes. His focus is to use radiation-processing technology for biomedical purposes, renewable energy, Dye sensitized solar cell, modification of natural fibers; stimuli-responsive materials, hydrogel, scaffold form natural polymers. He has conducted research works in many countries including America, Germany, Japan and etc. He has worked in Germany (Technical University of Berlin, Fraunhofer Institute of Applied Polymer Research) as DAAD and Alexander von Humboldt (AvH) fellow, in Japan as MIF Fellow, as visiting scientist, in Australia (University of New South Wells) as IAEA fellow. Trained in Nuclear and Radiation Chemistry through various training course organized by IAEA. He is a part time Professor of Dhaka University, and visiting professor and examiner of various universities of Bangladesh. He is author/co-author of about 600 publications including 16 book chapters and a patent. He has served as project director/co-project director of different national and international scientific project on polymer science. Reviewers of different International Journals on Polymer and Composite Science as well Radiation supervised more than 300 M.Sc. 8 M. Phil and 13 PhD. Students. He is part time/visiting Professor of different universities of home and abroad. He has invented advanced wound dressing material from cow bone, liquid bio-fertilizer from textile effluent, natural plant growth promoter from prawn shell etc. He is also the inventor of Jutin (Jute Reinforced Polymer Corrugated Sheet) the outstanding housing material from jute plastic composite and food preservative using oligo chitosan (alternative to the formalin), He is awarded several national and international awards including Bangladesh Academy of Science Gold Medal awards 2010 for his remarkable contribution to scientific community. He is also awarded and honored by various social and academic institutes in home and abroad, He is also selected as Fellow of International Union of Pure and Applied Chemistry (IUPAC). His name was published in How’s Who in World in 1998. He visited more than 22 countries for participating different seminars, workshops, symposiums, conferences as invited speaker or speaker.
Abstract:
Textile mill, the largest revenue earning industry in Bangladesh is facing problem with the disposal of its solid waste (sludge). In this study, textile sludge is detoxified with gamma irradiation (15 kGy) and then used to make environmental friendly bricks for construction purposes. Bricks were graded based on the sludge and clay content ratio. Sludge was mixed with clay and bricks were made in wooden frame. Dried brick samples were then kept at 450°C for 24 hours in furnace. Controlling the temperature allowed us to produce the brick without producing any NOx. Parameters such as density (g/cm³), weight loss (%), firing shrinkage (%),bending strength (MPa), , Bending modules (MPa), Impact strength (kJ/m²), water uptake (%) and electrical resistivity (Ω-m) were investigated. Density, weight loss, firing shrinkage and electrical resistivity reduced as sludge content (%) in bricks increased whereas bending strength, Bending modules, Impact strength and water uptake (%) increased with the increase of sludge content. The optimum results were found for the 50-50% sludge/clay samples. Further increase in the sludge percentage led to loss of strength and compactness of the brick sample. According to the results, the optimum sample showed higher strength than the sample made by pure clay; but showed slightly lower strength than the commercial brick. The change in density of all bricks was experienced during the aging tests in water, acid, alkali and salt. bending strength, Bending modules, Impact strength were also tested for water and acid aging. Morphological analysis of the brick samples were done by metallurgical inverted microscope.
Networking and Refreshment Break 11:15-11:30 @ Outside Room
- Track 1: Advanced Biopolymers
Track 2: Natural Polymers
Track 8:Biopolymers in Biofibers & Microbial Cellulose
Chair
Maria Cristina Righetti
National Research Council, Italy
Session Introduction
Takahiko Nakaoki
Ryukoku University, Japan
Title: Biosynthesis of block copolymer for poly(3-hydroxyalkanoate)
Time : 11:30-11:50
Biography:
Abstract:
Armen Kocharian
California State University, USA
Title: Magnetism in metal-free phthalocyanine and graphite-like nanostructures
Time : 11:50-12:10
Biography:
Abstract:
Maria Cristina Righetti
National Research Council, Italy
Title: Constrained amorphous interphase and mechanical properties of bio-based polyesters
Time : 12:10-12:30
Biography:
Abstract:
Patrizia Cinelli
National research Council, Italy
Title: Effect of additives on properties of bio-based polymers and their blends
Time : 12:30-12:50
Biography:
Abstract:
Yumei Zhang
Donghua University, China
Title: Understanding the microphase morphology of concentrated cellulose solutions from their rheological behavior
Time : 12:50-13:10
Biography:
Abstract:
Group Photo @ Rosewood Room
Lunch Break 13:10-14:10 @ Source Grill
Samuel Oluwatobi Oluwafemi
University of Johannesburg,South Africa
Title: Controlled simple green synthesis of smaller sized aqueous quasi-spherical polymer-capped silver nanoparticles
Time : 14:10-14:30
Biography:
Prof 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:
We herein report the controlled synthesis of highly monodispersed water soluble, stable, smaller sized starch and gelatin capped-silver nanoparticles (Ag-NPs), via an eco-friendly, completely green method in a natural polymeric media. The method involves the use of silver nitrate, polymer (starch and gelatin) and maltose as the silver precursor, stabilising agent and reducing agent respectively in aqueous solution without the use of any accelerator. By varying the reaction time, we monitored the optical and structural properties of the colloidal Ag-NPs. The nanoparticles were characterised using UV-vis absorption spectroscopy, X-ray diffraction (XRD), transmission electron spectroscopy (TEM), high resolution electron transmission microscopy (HRTEM), selected area electron diffraction (SAED) and energy dispersive spectroscopy (EDS). The absorption maxima of the as-synthesised materials at different reaction time showed characteristic silver surface plasmon resonance (SPR) peak. The TEM image at 1 h reaction time showed well-defined monodispersed, spherical particle in a self assembly neck-lace arrangement. The particles were in the range 1.8-6.3 nm with an average particle diameter of 3.70  0.99 nm. As the reaction time increased the particle size increased and started to decrease after 24 h. The average particle diameter of 3.24  0.99 nm was obtained at the end of the reaction. The mechanism for the controlled synthesis in this smaller sized range is discussed. The high resolution image confirmed the high crystallinity of all the materials while the X-ray diffractogram confirmed that, the obtained Ag-NPs are of face-centered cubic (fcc) crystalline structure. The as-synthesised were found to be very useful for colorimetric detection of hydrogen peroxide (H2O2) at lower concentration up to 10−10 M and for the reduction of 4-nitrophenol to 4-aminophenol. This synthesis offers a cleaner and greener method for the controlled synthesis of Ag-NPs without the use of any hazardous complexant or accelerator.
E A H A Gomaa
Ain Shams University, Egypt
Title: Preparation and characterization of organic montmorillonite-polyvinyl alcohol-co Polyacrylic nanocomposite hydrogel for heavy metal uptake in water
Time : 14:30-14:50
Biography:
E A H A Gomaa is a Professor in the Department of Physics, Faculty of Science, Ain Shams University, Cairo, Egypt. Her research interest is in the field of application of nuclear non-destructive techniques in materials.
Abstract:
In the present work, preparation of organic montmorillonite-polyvinyl alcohol-co-Polyacrylic (OMMT-PVA/AAc) nanocomposite hydrogel is performed with different OMMT (clay) amounts ranging from 1.3 to 15% using γ irradiation as initiator to induce crosslink network structure. The effect of clay amount and absorbed dose on gel fraction and swelling percent has been investigated. It is found that the gel fraction increases up to 92% with increasing the loaded clay to 15% OMMT, whereas the swelling percentage (%) reaches its maximum value at an amount of nanoscale clay of 4 ml and at an absorbed dose of 4 kGy. The thermal stability of PVA/AAc hydrogel and OMMT-PVA/AAc nanocomposite hydrogel has been determined by thermogravimetric analysis (TGA), which indicated a higher thermal stability of the nanocomposite. The FTIR spectral analysis has identified the bond structure of the PVA/AAc hydrogel and the OMMT-PVA/AAc nanocomposite hydrogel. The nanostructure of the composite as well as the degree of exfoliation of clay is studied by X-ray diffraction (XRD) and transmission electron microscope (TEM). Its free volume parameters (size and fraction) are investigated by means of positron annihilation lifetime spectroscopy (PALS). The results have shown that these parameters are correlated positively with swelling %. After loading the hydrogels and hydrogel nanocomposites with different heavy metals (Ni, Co), UV spectroscopy is applied to determine the metal ion concentration before and after treatment. SEM has characterized their surface morphology. The distribution of heavy metals on the hydrogels is determined by EDX. The factors affecting the heavy metal uptake, such as contact time, pH and metal ion concentration of solutions are studied.
Elena Benedetti
AEP Polymers Srl,Italy
Title: Organic modification and functionalization of biobased aromatics and their use in industrial polymer formulations
Time : 14:50-15:10
Biography:
Elena graduated in 1999 from the University of Trieste and worked in the molecular pathology field at the International Center for Genetic Engineering and Biotechnology in Trieste. She then moved to the materials science focusing on polymer formulations for coatings and composite materials, managing specific product lines, publicly funded R&D projects and consultancy activities. Elena was appointed Technical Director and Business Unit Manager for the biobased materials business in companies in Europe and US. Since September 2013, Elena is Director of Product Application at AEP Polymers.
Abstract:
Aromatic organic materials are often recovered as byproduct or waste stream of agricultural and industrial processes. Some of the collected materials are not edible and may not be reused in agricultural processes and are used as an energy source or disposed of. The present contribution shows the potential for chemical purification and functionalization or aromatic molecules and their use in the polymer industry. Biobased resins are in fact an emerging alternative for performance materials and the new generation biopolymers are required to improve both sustainability and technical aspects. AEP has been working with RTOs and industrial partners to create brand new substances and materials starting from renewable resources and combining different chemical structures, from fatty acids to bio aromatics. In particular, Cashew Nut Shell Liquid (CNSL) is a naturally occurring source of phenols. AEP developed a portfolio of industrial polymers from CNSl with hydroxyl, aminoalcohol, epoxy and amino functionalities to deliver performing materials for demanding industrial applications in composites, polyurethanes and adhesives.
Ye Chen
Donghua University, China
Title: Dissolution of cellulose in ionic liquids via polyelectrolyte interaction
Time : 15:10-15:30
Biography:
Abstract:
Neslihan Alemdar
Marmara University,TURKEY
Title: Fabrication of reduced graphene oxide/chitosan-based conductive hydrogel for biomedical applications
Time : 15:30-15:50
Biography:
Neslihan Alemdar is currently Assistant Professor in the Department of Chemical Engineering at Marmara University, Istanbul, Turkey. Alemdar received her Ph.D. degree from Istanbul Technical University in Chemical Engineering in 2009. During 2011–2013, She worked as a Post-Doctoral Fellowship at Harvard-MIT Health Sciences and Technology Institute & Massachusetts Institute of Technology (Harvard-MIT) at Tissue Engineering Field (USA). Her research interests are focused on the synthesis of smart polymers and characterization and its application for different areas especially the fabrication of hydrogel for tissue engineering application and drug delivery systems.
Abstract:
Fabrication of reduced graphene oxide/chitosan-based conductive hydrogel for biomedical applications: Recently, novel composite hydrogels composed of biopolymers and conductive inorganic additives such as graphene (G) or graphene oxide (GO) have been attracted great interests owing to excellent properties of conducting polymers and graphene or graphene oxide including high electric conductivity at room temperature, long term environmental stability, good electrochemical activity and biocompatibility of biopolymers, as well as unique electrical and chemical properties of G or GO. Hydrogels obtained by using biopolymers and graphene/graphene oxide can be applied in many fields such as tissue engineering, electrochemical sensors and biosensors for the detection of certain special substances. In this study, reduced graphene oxide (RGO)-based conductive hydrogel was produced by photopolymerization technique. For this, glycidyl methacrylate was grafted on the chitosan backbone and following this grafted product was exposed to UV light with poly (ethylene glycol) diacrylate to form polymeric network. Reduced graphene oxide at varying ratios was encapsulated into the polymeric network during the photopolymerization process to obtain conductive composite hydrogel. The fabricated conductive hydrogel with this way was characterized by FT-IR, SEM, and XRD analyses. Swelling capacity of hydrogel was determined by gravimetrically. Thermal behavior of conductive hydrogel was observed by TGA analyses. Conductivity measurements were carried out by 4-probe method. As a result, it can be stated that RGO-based conductive hydrogels with an enhanced thermal performance could be produced and it is visualized a utilization of this conductive hydrogel for biomedical applications for future works.
Networking and Refreshment Break 15:50-16:05 @ Outside Room
Amani Samy Hegazy
Ain Shams University,Egypt
Title: The effect of magnetic field on biophysical properties of different water samples
Time : 16:05-16:25
Biography:
Amani Samy Hegazy is a Professor in the Department of Physics, Faculty of Science, Ain Shams University, Cairo, Egypt. Her research interest is in the field of materiasl science and its applications.
Abstract:
The physical properties of different water samples (tab, zamzam, bottled, and distilled water) were investigated under the effect of magnetic field. The pH, boiling point, conductivity, viscosity values were increased with increasing the time of magnetic field due to the increase of hydrogen bonding and water clusters. But, the rate of flow value was decreased. The magnetization effects kept after withdrawal of the water samples from the magnetic field and gradually return to their original values with time. Zamzam water had the highest value of pH, boiling point, conductivity and viscosity comparing with other samples, while the distilled water had the lowest one. The observations are of great interest and importance, in a way that they help in applying magnetic treatment devices technology in various fields such as industry, medicine and agriculture to improve water properties.
Mohd Ikmar Nizam Bin Haji Mohamad Isa
Universiti Malaysia Terengganu,Malaysia
Title: Immittance Responses Study of Dodecyltrimethyl Ammonium Bromide Effect on 2-Hydroxyethyl Cellulose Solid Biopolymer Electrolytes
Time : 16:25-16:45
Biography:
Prof. (Assoc.) Dr. Mohd Ikmar Nizam Bin Haji Mohamad Isa has completed his PhD at the age of 28 years from Universiti Malaya in 2006. He is Prof. (Assoc.) of Physics at the School of Fundamental Science, Universiti Malaysia Terengganu. He has published more than 80 articles in reputable journals (2006-2016) and won numerous awards and medals in International Expos Competition.
Abstract:
In this work, the development of solid biopolymer electrolytes (SBEs) system was done via solution casting technique comprising 2-hydroxyethyl cellulose (2-HEC) doped with 3 to 15 wt. % dodecyltrimethyl ammonium bromide (DTAB). The electrical impedance spectroscopy (EIS) analysis showed the room temperature ionic conductivity for un-dope 2-HEC SBE is 6.42 x 10-7 S/cm and enhanced with the addition of DTAB in the biopolymer system. Sample with 9 wt. % of DTAB records the highest ionic conductivity at room temperature of 2.80 x 10-5 S/cm. The 2-HEC–DTAB SBEs conforms Arrhenius behavior where the ionic conductivity increases linearly to temperature with regression value of ~1. The system was observed to satisfy non-Debye type through the frequency dependence of dielectric and tangent study at various temperature and frequencies. Consequently, the activation energy of relaxation is lower than the activation energy conduction implies that the charge carrier has to overcome higher energy barrier during conducting.
Masoumeh Ghorbani
University of Natural Resources and Life Sciences, Austria
Title: Lignin phenol formaldehyde resole resin: synthesis and characteristics
Time : 16:45-17:00
Biography:
Masoumeh Ghorbani is a PhD student in University of Natural Resources and Life Sciences, Department of Material Sciences and Process Engineering, Vienna, Austria.
Abstract:
Seyedmohammadkazem FEHRI
University of Pisa, Italy
Title: Composition dependence of the synergistic effect of nucleating agent and plasticizer in poly(lactic acid)
Time : 17:00-17:15
Biography:
Abstract:
Xiang Zhang
University of Cambridge, United Kingdom
Title: New concept of resorbable biopolymer hybrids for implant applications
Biography:
Abstract:
This presentation will introduce new concepts on design and development of resorbable biopolymer hybrids for implant applications. It will report the principles of design and formulations of resorbable biopolymer hybrids, industrial practice of implant development and clinical considerations of medical devices. The main topics covered in the presentation include:
• New concepts of resorbable polymer hybrids for medical applications;
• Synthesis of resorbable bio-copolymers with tailored mechanical properties and degradation rate, copolymers of which include polylactide, polycaprolactone and poly(ethylene glycol);
• Synthesis of resorbable phosphorus/silicon-based bioglasses;
• Design and development resorbable polymer hybrids consisting of organic and inorganic nano-composites;
• Therapeutic polymer hybrids: drug-loaded resorbable polymer hybrids;
• Clinical and bio-evaluations of drug-loaded resorbable polymer hybrids
• Case studies: new medical implants and future development
Elena Benedetti
AEP Polymers Srl, Italy
Title: Organic modification and functionalization of biobased aromatics and their use in industrial polymer formulations
Biography:
Elena graduated in 1999 from the University of Trieste and worked in the molecular pathology field at the International Center for Genetic Engineering and Biotechnology in Trieste. She then moved to the materials science focusing on polymer formulations for coatings and composite materials, managing specific product lines, publicly funded R&D projects and consultancy activities. Elena was appointed Technical Director and Business Unit Manager for the biobased materials business in companies in Europe and US. Since September 2013, Elena is Director of Product Application at AEP Polymers
Abstract:
Aromatic organic materials are often recovered as byproduct or waste stream of agricultural and industrial processes. Some of the collected materials are not edible and may not be reused in agricultural processes and are used as an energy source or disposed of. The present contribution shows the potential for chemical purification and functionalization or aromatic molecules and their use in the polymer industry. Biobased resins are in fact an emerging alternative for performance materials and the new generation biopolymers are required to improve both sustainability and technical aspects. AEP has been working with RTOs and industrial partners to create brand new substances and materials starting from renewable resources and combining different chemical structures, from fatty acids to bio aromatics. In particular, Cashew Nut Shell Liquid (CNSL) is a naturally occurring source of phenols. AEP developed a portfolio of industrial polymers from CNSl with hydroxyl, aminoalcohol, epoxy and amino functionalities to deliver performing materials for demanding industrial applications in composites, polyurethanes and adhesives.
Lin Ye
Beijing Institute of Technology, China
Title: Heparin-based self-assembly for controllable drug delivery application
Biography:
Abstract:
Javad Foroughi
University of Wollongong, Australia
Title: A novel wet-spinning approach for fabricating coaxial biopolymer fibres
Biography:
Abstract:
Vakhtang Barbakadze
Tbilisi State Medical University Institute of Pharmacochemistry, Georgia
Title: Novel phenolic biopolyether with anticancer efficacy
Biography:
Abstract:
Subita Bhagat
Sant Longowal Institute of Engineering & Technology, India
Title: Mechanical analysis of chemically treated coir fiber- polyester composites
Biography:
Abstract:
Prasun Kumar
CSIR -Institute of Genomics and Integrative Biology (IGIB), India