ProductionofFunctionalMaterialsfromBiomassbyUsingOnlyWaterBiomassconversioninhigh‐temperaturewater(HTW)andsupercriticalwater(SCW)hasbeenstudied.HTWreferstowaterinitsliquidstatebelowitscriticaltemperatureandpressure(374ºC,22.1MPa),whereasitbecomesahighlycompressiblefluidcalledSCWabovethispoint.Wearealsousingawaterjetmachineforwetpulverizetreatmentofbiomass.Wateristhemostenvironmentallybenignsolvent.Thetargetbiomassarewood(lignin),fishscale(protein),squidpen(chitin).Forexample,wearetryingtoproducechitinnanofiberfromsquidpenbyawaterjetmachine.Studentswouldworkatchemical,food,andpharmaceuticalcompaniesasanengineerandaresearcher.Ihopethatthestudentswillmakethebiggestimpactinthefieldofnewenvironmentalbenignchemicalengineering.AssociateprofessorMitsumasaOsadaPh.D.TohokuUniv.Japan.2005.Assoc.Prof.IchinosekiNationalColl.ofTech.2006‐2014.VisitingScholar,theUniversityofMichigan,USA.2007‐2008.Assoc.Prof.ShinshuUniv.2014‐.InvestigationofHTWandSCWasnewchemicalreactionfieldNanofiberproductionfromunusedagriculturalresourcesFunctionalMaterialsfromwastebiomassAnadvantageofbiomassconversioninHTWandSCWisthathotwatercanserveasasolvent,areactant,andacatalyst.Whilemanybiomass(e.g.,proteinandchitin)arenotwater‐solubleatambientconditions,mostarereadilysolubilizedinHTWorSCW.Inaddition,H+andOH‐concentrationsofHTWarehigherthanthoseofambientwaterandtheacidorbasecatalyzedreactionsproceedwithoutaddingcatalysts.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-1.00E-07-5.00E-080.00E+005.00E-081.00E-07-0.7-0.5-0.3-0.10.1Current(A)Potential(V)基質なしリドカインテストステロンニフェジピンACYPimmobilizedelectrodethatdemonstratesadifferentelectricalcurrentandvoltageresponsedependingonthetypeofchemical(anexampleuseasabiosensor)Formation of silica in numerous shapes by adding polymers (an example use in new materials)substrate freelidocainenifedipineUtilizing biological materials in engineering to create biosensors and new materialsDepartment of Chemistry and MaterialsDepartment of Chemistry and MaterialsOutlookforresearchOutlookforresearchOutlook for students after graduationOutlook for students after graduationIamworkingtodevelopabiosensorcapableofeasilyidentifyingtheappropriateamountofmedicinetoadministerbyaffixingCYP,whichplaysacentralroleintheliver,toanelectrode.Diatoms,atypeofphytoplankton,useaproteincalledsilaffintoformtheirsilicashells.Mylabhassucceededinusingapolymerthatimitatesthatstructuretocreatenewsilicamaterialsinnumerousforms.Byrecombiningcountlessbiologicalmoleculestoapplybiologicalmaterialstoengineering,itbecomespossibletodevelopnewmaterialsbasedonnewprinciples.Althoughmanygraduatesareemployedintheareasofchemicalmaterialsandmedicalequipment,Istrivetogivethemaneducationthatcanbeappliedtocompaniesinallfields.AssociateprofessorYoshiroOgomaAssociateprofessorOgomareceivedhisDoctorateofScienceatTohokuUniversityaftercompletingthetextileresearchcourseatShinshuUniversityGraduateSchool.Hetookhiscurrentpositionin1999.From2001to2002,hestudiedattheUniversityofCologneinGermanyasanexchangestudent.Hisspecialtyisbiopolymerengineering.ltestosterone37
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