MaterialsChemistryMaterialsChemistry9ProfessorChemistry of artificial lipid membrane vesicles (liposomes)Bio-mimetic microchemicalsystems.ProfessorGenesis Research Institute, Inc., The State University of New York, Tokyo University of Science and ShinshuUniversity. Colloid and Interface Science.YukihisaOkumuraSakai’sresearchaimstodevelopthemethodologiesforfabricationofthecolloidalmaterials(e.g.,metalnanoparticles,porousmaterials,emulsions,bubblesandfoam)andorganizationcolloidalmaterialsintomulti-dimensional(1D,2Dand3D)structuresinsolutionsand/oratinterfacesinanefficientmannerwithrespecttocost,energyandenvironment.Inparticular,amphiphiliccharacters(dualnatures)ofmoleculesorpolymersareessentialelementsfordesigningthemethodologies.Toshio SakaiisanextremelysophisticatedmicrochemicalAbiologicalcellsystem.Thisfacthasledscientiststoconstructacell-likemicrochemicalsystembyhumanhands.Forthesystem,artificialplasmamembranesareessentialastheyseparatetheinnerworldfromtheoutsideandbecometheinterfacebetweenthetwoworlds.Ourresearchgroupstudieslipidmembranevesiclesthathavethesizecomparabletobiologicalcells(giantliposomes)assuchartificialcellmembranes.In the FutureAfter GraduationIn the FutureAfter GraduationColloidalmaterialsandtheirorganizationonsubstratearestronglyrequiredforrecentdevicefabricationbecauseofthedeviceminiaturization.Furthermore,theimprovementofdeviceperformanceisrequiredfortheconvenienceofourdailylife.TheSakai’sresearchgroupattemptstodevelop“high-puritycolloidalmaterials”becausetheyareexpectedtoexhibithigherperformance.Theconstructionofasophisticatedartificialcellwillbeonetechnologicalachievements.Althoughthereclearlyisalongwayahead,manyresearchgroupsaroundtheworldhavebeenworkingontheproblem.ifestablished,willbeusedinmanybio-relatedfields,suchasmedicineandagriculture.Anexampleofpossibleapplicationsisadrugdeliverysystemmoreefficientandcompatibletohumanbodies.Manygraduatesfoundtheircareersinvariouschemistry-relatedfieldsincompanies.Throughthesisworks,studentsinourgroupareexpectedtoimprovetheskillsnecessaryasanengineer;carefulobservation,logicalthinkingandgoodresearchplanning.ofthemajorscientificandThetechnology,suchaspapermaking,Technologicalprocessespotterymakingandthefabricationofsoaps,cosmeticsandmedicinesinvolvemanipulationofcolloidalsystems.Colloidandinterfacescienceprovidesvariousopportunitiesintheindustriessuchascatalyst,electronics,toiletryandmedicalfields.Working with giant vesicles. Giant vesicles are as large as biological cells and can be directly observed on an optical microscope.Micromanipulation of a giant vesicle. Various substances may be introduced into the vesicle by microinjection through a hollow needle.Preparation and characterization of colloidal materials such as metal nanoparticles, porous materials, emulsions, bubbles and foam.Optical micrograph of oil-in-water (O/W) emulsion..Emulsions are used in various fields such as cosmetic, food and medical field.O/WArtificial Membrane for Cell-Like MicrochemicalSystemsColloid and Interface Science~Comfortable life onthe Earth and in Space~
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