Day 1 :
Keynote Forum
Masayoshi Tabata
Muroran Institute of Technology
Japan
Keynote: Emerging of stretched and contracted helices of substituted polyacetylenes and its molecular oscillation in solution
Biography:
Masayoshi Tabata has completed his PhD from Hokkaido University, Japan and Postdoctoral studies from United Kingdom and Sweden. After that he became Assistant Professor and Associated Professors at Hokkaido Univ., and Professor of Muroran Inst.of Tech., Japan. Moreover, he also became a senior research director at National Institute of Advanced Industrial Science & Tech. (AIST) Tsukuba, Japan, and Guest Professor at Paris Univ. in France.
Abstract:
Stretched (cis-transoid) and contracted (cis-cisoid) helices of mono-substituted polyacetylenes (SPAs) were selectively prepared using a [Rh(norbornadiene)Cl]2 in the presence of amine or alcohol cocatalyst in solution. The cis-transoid and cis-cisoid helices constructed from the aliphatic polyacetylenes ester main chain in solution showed an accordion-like helix oscillation and helios, respectively, where restricted rotations around the O-C bond in the ester side-chain are dynamically synchronized. The magnetic behaviour of the cis and trans radicals of SPAs produced through the rotational scission of the cis C=C bonds is also reported.
Keynote Forum
Lidietta Giorno
National Research Council
Italy
Keynote: Integrated membrane processes for sustainable industrial production and water treatment
Biography:
Lidietta Giorno has her expertise in membrane science and technology. Her research activity include membrane bioengineering, biocatalytic membrane reactors, enzyme immobilization, nanostructured and multifunctional membranes, integrated membrane systems for bioseparations and bioconversions, downstream processing based on molecular separation, membrane chiro technology, membrane emulsifier, integrated membrane operations for water treatment.
Abstract:
The increase of world population and the intensive demand for food, goods, water and energy is driving a depletion of resources as well as a dramatic impact on environment. It is clear that advanced technologies play a key role in providing strategies to face challenges of modern globalized society. Membrane technology is recognized among the most efficient, precise, flexible, clean, low energy input technology. Various nanostructured membrane-based processes are nowadays state-of-theart in implementing separation at molecular level, recognition, concentration, conversion, formulation. Integrating different membrane operations as well as combining them with other type of technologies permits to efficiently tune output products and obtain co-products instead of by products or waste. For example, liquid beverage processing, active ingredients production, chemical manufacturing, biorefinery, safety, water treatment and water desalination well confirm these possibilities. Case studies will be illustrated concerning the development of integrated processes for the purification of vegetative water coming from olive oil industry with simultaneous recovery, transformation and formulation of biophenols based ingredients. The nonedible organic fraction could also be used to produce biogas and its suitable purification for energy use was achieved by using polymeric membranes. The achievements of membrane-based sea water desalination for both potable water production and minerals extraction will be highlighted. Membrane-based operations play a role also in monitoring and decontaminating air and water. An integrated system using biosensors are able to detect harmful gaseous substances and promote the activation of decontamination process based on enzyme-loaded membrane will be illustrated.
Keynote Forum
Jun-Ichi Kadokawa
Kagoshima University
Japan
Keynote: Chemoenzymatic synthesis of polysaccharide-grafted polymeric materials
Biography:
Jun-Ichi Kadokawa holds PhD degree in Engineering. Currently, he is a Professor of Chemistry, Biotechnology and Chemical Engineering at Kagoshima University, Japan. He studied applied chemistry and materials chemistry at Tohoku University, where he received his MS degree in 1989 and PhD in 1992. He has then joined Yamagata University as a Research Associate. From 1996 to 1997, he has worked as a Visiting Scientist at the Max-Planck-Institute for Polymer Research in Germany. In 1999, he became an Associate Professor at Yamagata University and moved to Tohoku University in 2002. He was appointed as a Professor of Kagoshima University in 2004. His research interests focus on enzymatic synthesis of functional oligo- and polysaccharides and control of their higher-ordered structures. He has received the award for Encouragement of Research in Polymer Science (1997) and the Cellulose Society of Japan award (2009).
Abstract:
Biological macromolecules, such as polysaccharide and protein (peptide), are vital materials in living systems. Such functions are appeared by their controlled primary and higher-ordered structures. Furthermore, branched or grafted biological polymers are oft en appeared in nature and such complicated structures contribute to exhibiting important in vivo functions. Accordingly, synthetic method for combining several biological macromolecules into branching or graft ing is expected to produce new functional polymers. On the basis of the viewpoint, we have reported the synthesis of amylose-grafted polymeric materials by chemoenzymatic approach, which is a combined method of phosphorylase, catalyzed enzymatic polymerization of α-D-glucose 1-phosphate (G-1-P) monomer for the amylose production with appropriate chemical reactions. The phosphorylase-catalyzed enzymatic polymerization using G-1-P as a monomer proceeds with the construction of glycosidic bond under mild conditions, leading to the direct formation of α(1γ4)-glucan chain, i.e., amylose, in the aqueous media. To initiate the polymerization, a maltooligosaccharide is required as a primer in the initial reaction media. The synthesis of amylosegrafted heteropolysaccharides has been performed by combining the phosphorylase-catalyzed enzymatic polymerization with the appropriate chemical reaction (chemoenzymatic method). For example, amylose-grafted carboxymethyl cellulose (CMC) was synthesized as the following chemoenzymatic method. A maltooligosaccharide having an amino group was first introduced to the CMC by using condensing agent. Then, the phosphorylase-catalyzed enzymatic polymerization of G-1-P from the maltooligosaccharide chain ends on the product was performed to obtain the desired amylose-grafted CMC. T e product had the rigid CMC main chain, which further assembled, leading to nanofibers by the formation of double helix between the long amylose graft chains in the intermolecular CMC chains. The chemoenzymatic synthesis of amylose-grafted poly γ-glutamic acid (PGA) as a new artificial polysaccharide-polypeptide conjugate was also investigated. The product formed a robust hydrogel, which could be converted into a regularly controlled porous material.
Keynote Forum
Majid Mohammadian
University of Ottawa
Canada
Keynote: Numerical simulation of laterally confi ned vertical buoyant jets
Biography:
Majid Mohammadian is an Associate Professor at the Department of Civil Engineering, who is an expert in the research field of the computational fluid dynamics. He is a former MIT Researcher and has also had two years of research experience at Environment Canada and New York University. He carries out research in the areas of numerical modeling in marine outfall systems, river engineering, environmental hydraulics, turbulence and computational methods. He is an Associate Editor of the Journal of Applied Water Engineering and Research, Taylor and Francis (IAHR), Member of IAHR-IWA Leadership Committee on Marine Outfall Systems and was the Chair Person of the IAHR-IWA International Symposium on Outfall Systems (2016). The focus of his research is on marine outfall systems
Abstract:
In most cases, the density of wastewater effluents is less than that of the receiving water body. Therefore, the wastewater effluents are considered buoyant jet. A typical type of buoyant jets is the outfall of the wastewater treatment plants. In order to effectively design an outfall system, and minimize its environmental impact, the mixing mechanism of turbulent buoyant jets must be examined. It is essential to dispose the buoyant jets in a suitable condition, because these jets have dominant negative environmental impacts. In many cases, the effluent is bounded by limiting boundaries. This leads to a confined turbulent jet. The mixing characteristics of confined buoyant jets can be examined in different ways including experimental, numerical and theoretical methods. Limited studies in the literature are reported on numerical modeling of laterally confined vertical buoyant jets. In this paper, the mixing characteristics of a laterally confined vertical buoyant jet is studies using various turbulence models including the GGDH k-ε turbulence model which is a buoyancy-corrected model. The numerical simulation results are compared to other models and experimental data experiments. The study demonstrates that GGDH k-ε turbulence model improves the precision of simulations. It can thus be employed for examining the mixing characteristics of confined buoyant jets.
- Industrial Chemistry | Organic Chemistry: Mech and Biomol | Inorganic Chemistry: The Elements | Medicinal Chemistry: Fusion of Traditional Medicine | Chemistry of Transition Elements | Drug Chemistry | Food Chemistry | Electrochemistry
Chair
Masayoshi Tabata
Muroran Institute of Technology Japan
Co-Chair
Jun-ichi Kadokawa & Majid Mohammadian
Japan & University of Ottawa Canada