卟啉等生物分子在液2f液界面上的电子转移过程分析

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1、曲J匕师范人学硕十学f々论文liiii一——F"i-iiiiiiiiiii；iiiiiiiii；iiiiiiiiiiiiiiiiiii；iiiiiiiiiiAbstractAliquid／liquid(L／I。)interfacehasbeensuggestedasasimplemodelforbiologicalmembranesandthecharge(electronandion)transferacrossithasbeenstudiedasallessentialphysicalchemicalprocess．Manyimportantch

2、emicalandbiologicalsystems(suchaschemicalSensors，drugreleaseofpharmacology，phasetransfercatalysis)andsimulationofbiomembranecouldbeinvestigatedattheL／Linterface，whichwassignificantforadvancingthedynamictheoriestointerfaceprocessandunderstandingmanyimportantphysiologicalprocesse

3、s，P．吕energymetabolizing，free—radicelpresentinganddisappearing．Thin—LayerCyclicVoltammetry(TLCV)wasdevelopedbyAnsoneLalin1998，whichhasbeenusedtostudychargetransferatL／Linterface．andtheadvantagesofTLCVincludeitssimplicityandconvenience．Asanewtechnologyofscanningprobemicroscope，sc

4、anningelectrochemicalmicroscopy(SECM)wasdevelopedbyBardandco-workersin1989．SECMCanbeusedinavarietyofways，e．g，asanelectrochemicaltooltostudyheterogeneousandhomogeneousreactions，asanimagingdevice(nficroscope)toacquiregraphicsofthesubstratesanddistinguishthedifferencesofthesurface

5、，anditcallbeusedforfabricatesomemicrostructuresandstudymanybiosystems．Therearethreepartsinthispaper，maincontentsareasfollows：1．AshortreviewwasgivenonelectrochemistryofL，Linterface．ThehistoricalbackgroundandthebasicprinciplesoutlinedofTLCVandSEeMWaSbrieflysummarized．Especially,t

6、heapplicationsofthetwotechnologiesininterracialelectrochemistrywerediscussedindetail．Theseapplicationsincluded：(1)SECMwasusedtoprovideameansofcharacterizingthinfilms，modifiedelectrodesandconductivepolymersintermsofstructureandmechanism；(2)Thecatally-ticactivityofimmobilisedredo

7、xenzymeswerestudiedbySECM；(3)EmployedTLCVandSEeMtostudychargetransfer(irontransfer(IT)andelectrontransfer(ET))；(4)曼詈置■——邕imI量皇鼍——量皇曼曼曼蔓鼍研究生：胡丽娜专业：分析化学导师：卢小泉教授康敬万教授研究方向：电分析化学Oit)AbstractSinglemolecularelectrochemicalreactionscouldbedetectedwiththeSECMandnanometre-scaletips；(5)SE

8、CMwereprovidedasatooltOinvestigatecellularactivitiesat