期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 65, 期 1-3, 页码 144-146出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0925-4005(99)00425-6
关键词
electron transfer; redox; biosensors
Three kinds of artificial redox proteins have been designed and prepared in order to discuss their applicability for the facile electron transferring interfaces between redox enzymes and electrode materials. First, ferrocene derivative-modified bovine serum albumin was prepared and was adsorbed together with fructose dehydrogenase on the conductive SnO2 electrode to fabricate an enzyme sensor for fructose. Second, avidins, which were chemically modified with anthraquinonyl group or pyrroloquinoline quinone (PQQ), were prepared. They were assembled onto biotin-modified gold electrode surfaces and their redox properties at the surface-bound state were electrochemically studied. Third, the genetically engineered streptavidin into which a redox-active non-natural amino acid, anthraquinonylalanine was incorporated at a specific site was synthesized and characterized as an artificial redox protein. (C) 2000 Elsevier Science S.A. All rights reserved.
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