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1、自组装法合成金磁微粒及其表征测定（Synthesisandcharacterizationofgoldnanoparticlesbyselfassemblymethod）SynthesisandcharacterizationofgoldnanoparticlesbyselfassemblymethodBioscience2004,HuangHongkeAdvisorprofessorYangWanshenAbstract:Thispaperpreparedbythechemicalcoprecipit
2、ationmethodusingmagneticFe3O4particles,silanizedreagentAPTES(3-aminopropyltriethoxysilane)ofaminomodifiedFe3O4particlesdispersedinethanol,andtheacid-basetitrationmeasuredaminoFe3O4particlessurfaceaminocontentof0.15mmol/g.Nanoscalecolloidalgoldwithparticl
3、esizeabout20nmwassynthesizedbyFrensmethod.ThegoldnanoparticleswereassembledontoFe3O4particlesbyAu-Nbond.Visiblelightabsorptionspectrumanalysisshowedthatthecharacteristicsofgoldmagneticparticlesinthe520nm-550nmshowedtheexistenceofAuduetoabsorptionpeaks,an
4、datomicabsorptionspectrometryalsoobtainedFe3O4:Auelementsofgoldmagneticparticlesconstitutearatioof1:0.97.Keywords:goldnanoparticles,colloidalgold,aminatedself-assemblytechnologyGoldMag,Particles,Synthesized,through,Self-assembly,TechniqueAndTheirExosyndr
5、omeHuang,Hongke,Biological,Science,Grade2004Directed,by,Yang,Wanshen(Professor)Abstract:Thisarticleaimedtointroduceachemical-coprecipitationmethodtosynthesizemagneticFe3O4microparticle.TheFe3O4microparticledissolvinginalcoholwasmodifiedbyaminationbyusing
6、silylatingreagentAPTES(3-amino-propyl-tris-exethyl-silicane).ThecontentofaminogrouponthesurfaceofFe3O4microparticlewasdeterminedthroughacid-basetitration.0.15mmol/gColloidalgoldsynthesizedby,Frensmethod,whoseparticlediameterwasabout20nmcould,befurtherass
7、embledonthesurfaceofFe3O4microparticlelinkedbyAu-Nvalencebond.ThevisiblelightabsorptionspectrumindicatedthatGoldMagParticlesshowedacharacteristicabsorptionpeakcausedbytheexistenceofAubetween520nm-550nm.,Meanwhile,atomicAbsorption,spectrum,analysis,demons
8、trated,that,the,ratio,of,GoldMag,,Particles,was,1:0.97.Keywords:,GoldMag,Particles,colloidal,gold,amination,self-assembly,techniqueNanomaterialisreferstothegrainsizeoflessthan100nmsinglecrystalorpolycrystalline,duetosmallg
