繊維学部研究紹介_2018_英語版
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32Dielectric spectroscopy claries the cooperative rearrangement dynamics of H-bond liquids. My lab is focusing on microscopic frictional forces acting on the reorientational motion of water molecules.High-resolution small-angle X-ray scattering reveals the microscopic behavior of proteins to help us understand their biological functions.Fiber Materials EngineeringInterdisciplinary Chemical Physics exploring the microscopic mechanisms of life phenomenaDepartment of Chemistry and MaterialsWe are working on a wide range of soft condensed matters involving pure liquids, solutions, colloids, polymers, gels, and bio-macromolecules. Our special interests are in water and biomolecules because almost all life phenomena occur in an aqueous environment. With the help of spectroscopic and scattering techniques, we are seeking to understand the microscopic mechanisms supporting life phenomena. We also aim to contribute to the developments of pharmaceuticals, cosmetics, and detergents.Takaaki SatoAssociate ProfessorAssociate Professor Sato graduated from Waseda University. He worked at Waseda University as a JSPS young research fellow (DC2 and PD) and as a senior assistant professor and then at Shinshu University as a tenure-track assistant professor before taking his current position in 2012.A recent social situation may emphasize the importance of practical research that can be instantly applied in society. Even so, we pursue fundamental research on soft condensed matters to gain deeper insights into structure and dynamics of diverse aqueous systems.Outlook for researchOur research topics and techniques produce students useful to a wide range of industries, such as cosmetic, detergent, and food. More importantly, our target is to develop human resources having a high level of problem-solving abilities, penetrating insights, and international communication skills.Outlook for students after graduationInvestigation of HTW and SCW as a new chemical reaction environmentNanober production from agricultural resourcesFunctional Materials from waste biomassFiber Materials EngineeringProduction of Functional Materials from Biomass by Using Only WaterDepartment of Chemistry and Materials We are studying biomass conversion in high-temperature water (HTW) and supercritical water (SCW). HTW refers to water in its liquid state below its critical temperature and pressure (374ºC, 22.1 MPa). It becomes a highly compressible fluid called SCW above this point. We are also using a water jet machine for wet pulverization treatment of biomass, as water is the most environmentally benign solvent. The target biomass are wood (lignin), fish scale (protein), squid pen (chitin). For example, we are trying to produce a chitin nanofiber from a squid pen by using a water jet machine.Mitsumasa OsadaAssociate ProfessorPh. D. Tohoku Univ. Japan. 2005. Assoc. Prof. Ichinoseki National Coll. of Tech. 2006-2014. Visiting Scholar, University of Michigan, USA. 2007-2008. Assoc. Prof. Shinshu Univ. 2014-.An advantage of biomass conversion in HTW and SCW is that hot water can serve as a solvent, a reactant, and a catalyst. While many biomass (e.g., protein and chitin) are not water-soluble at ambient conditions, most are readily solubilized in HTW or SCW. In addition, H+ and OH- concentrations of HTW are higher than those of ambient water. The acid or base catalyzed reactions also proceed without adding catalysts.Outlook for researchGraduates work at chemical, food, and pharmaceutical companies as an engineer and a researcher. I hope that the graduates will make a big impact in the eld of new environmental benign chemical engineering.Outlook for students after graduation超臨界水とは●超臨界流体固体液体気体圧力[MPa]22.1 温度[ºC]3740.1(常圧)1000超臨界水臨界点High-temperature water(HTW)and Supercritical water(SCW)Temperature [ºC]Pressure [MPa]Ambient conditionSCWCritical PointSolidLiquidGas2004006001197525Pressure24MPapHpOHTemperature[oC]Properties of HTW and SCWThe neutral pH of water is controlled by temperature and pressure.Waste BiomassFunctionalMaterialsProtein(Fish scale)CollagenPeptideLignin(Wood)Phenoliccompoundsβ-Glucan(Mushroom)Chitin(Crab)Oligo-saccharideHigh-temperature water

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