ProductionofFunctionalMaterialsfromBiomassbyUsingOnlyWaterBiomassconversioninhigh‐temperaturewater(HTW)andsupercriticalwater(SCW)hasbeenstudied.HTWreferstowaterinitsliquidstatebelowitscriticaltemperatureandpressure(374?C,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[?C]3740.1(常圧)1000超臨界水臨界点High-temperature water(HTW)and Supercritical water（SCW)Temperature [?C]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.ltestosterone38
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