■工学部_研究紹介_2017_英語版ファイル161220

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OkadaLabThereisademandformaterialswithmolecularrecognitionandseparationabilities.Preciselycontrolledadsorptivepropertiesatamolecularlevelareaprerequisite,andthuswehavebeenorganizingfunctionalorganicgroupsonsilica-basedmaterialstoinduceaselectiveadsorption.Spatialdistributionofthefunctionalgroupsinthesilicamatrixhasbeencontrolledtocreatetheactivesites(e.g.,porousstructures,reactionnano-vessels)forfutureapplicationsasanartificialenzymeandasensingdevice.Wehavebeeninterestedinhierarchicallydesignednaturalproductssuchaspreciousstonesandbeautifulanimaltissues.Periodicarrangementsofparticleswithdefinedshapescreatesuchproducts.Hybridizationoffunctionalgroupsonthesurfacesofparticleshasbeeninvestigatedforoptimizingtheperformancesincludingafacileseparationoforganicmolecules,andthedetectionofmoleculesbynakedeyes.TomohikoOkada,Associate ProfessorHe received his Dr. degree from Waseda University in 2004. His research interests include silica-based adsorbents, and catalysts.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.Variousmaterialsincludingorganicandinorganicsubstancesaresubjectmattersinpreparationofthesisonadsorbentsandcatalysts.Ourstudentslearnvariousinstrumentalanalysesforcharacterizingfunctionsofmaterials.Thus,thealumniareactiveinthefieldsofmechanicalandelectronicengineeringaswellaschemistry.Smart Adsorbents/catalysts from Inorganic-organic NanocompositesChemistry& MaterialsEngineeringIn the FutureAfter GraduationNanometer-sizedmaterialsandtheirorganizationonsubstratearestronglyrequiredforrecentdevicefabricationbecauseofthedeviceminiaturization.Furthermore,theimprovementofdeviceperformanceisrequiredfortheconvenienceofourdailylife.TheSakai’sresearchgroupattemptstodevelop“high-puritynano-materials”becausetheyareexpectedtoexhibithigherperformance.Sakai LabSakai’sresearchaimstodevelopthemethodologiesforfabricationofthenanometer-andmicrometer-sizedmaterials(e.g.,metalnanoparticles,mesoporousmaterialsandemulsions)andorganizationofnano-materialsintomulti-dimensional(1D,2Dand3D)structuresinsolutionsand/oratinterfacesinanefficientmannerwithrespecttocost,energyandenvironment.Inparticular,amphiphiliccharacters(dualnatures)ofmoleculesorpolymersareessentialelementsfordesigningthemethodologies.ToshioSakaiAssociate ProfessorGenesis Research Institute, Inc., The State University of New York, Tokyo University of Science and ShinshuUniversity.Colloid and Interface Science.Ultrasonicators and homogenizers are used for emulsification, dispersion and chemical reaction.Colloid and Interface Sciencefor Beauty and HealthOptical micrograph of oil-in-water (O/W) emulsion..Emulsions are used in various fields such as cosmetic, food and medical field.Technologicalprocessessuchaspapermaking,potterymakingandthefabricationofsoaps,cosmeticsandmedicinesinvolvemanipulationofcolloidalsystems.Colloidandinterfacescienceprovidesvariousopportunitiesintheindustriessuchascatalyst,electronics,toiletryandmedicalfields.O/WChemistry& MaterialsEngineeringIn the FutureAfter Graduation12

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