Engineering-Research-Activity2015｜SHINSHU UNIV.

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1.0 μmOkadaLabThereisademandformaterialswithmolecularrecognitionandseparationabilities.Preciselycontrolledadsorptivepropertiesatamolecularlevelareaprerequisite,andthuswehavebeenorganizingfunctionalorganicgroupsonsilica-basedmaterialstoinduceaselectiveadsorption.Spatialdistributionofthefunctionalgroupsinthesilicamatrixhasbeencontrolledtocreatetheactivesites(e.g.,porousstructures,reactionnano-vessels)forfutureapplicationsasanartificialenzymeandasensingdevice.Wehavebeeninterestedinhierarchicallydesignednaturalproductssuchaspreciousstonesandbeautifulanimaltissues.Periodicarrangementsofparticleswithdefinedshapescreatesuchproducts.Bymimickingnature,wemaybeabletodevelopusefulfunctions???-Idonotknow!-ascontaminantsconcentration,catalyticreactionsandcontrolledrelease.Hybridizationoffunctionalgroupsonthesurfacesofparticleshasbeeninvestigatedforoptimizingtheperformances.TomohikoOkada,ResearchAssociateHereceivedhisDr.degreefromWasedaUniversityin2004.Hisresearchinterestsincludesilica-basedadsorbents,andcatalysts.Silicate nanosheetsand organic functionalities have been used to scaffolds to create nanospacefor molecular recognition.Magnetic nanoparticlesenclosed by a silica microcapsule have been developed for a magnetically collectable, reusable adsorbent and catalyst for concentrating heavy metal ions in acidic aqueous solutions and solid acid catalysis in aqueous media.Idonotknowwhatthefirstsentencemeans!Aprocesstodesign“original”materialsfortheabove-mentionedpurposeshasbeenanimportantsubjectinpreparationoftheses.Ourstudentslearnvariousinstrumentalanalysesforcharacterizingfunctionsofmaterials.Thus,thealumniareactiveinthefieldsofmechanicalandelectronicengineeringaswellaschemistry.Smart adsorbents/catalysts from inorganic-organic nanocompositesChemistry& MaterialEngineeringIn the FutureAfter Graduation47

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