期刊
LANGMUIR
卷 26, 期 18, 页码 15022-15026出版社
AMER CHEMICAL SOC
DOI: 10.1021/la102806v
关键词
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资金
- Natural Science Foundation of China [20974059, 50973051]
- National Basic Research Program of China [200703808000]
- DFG-NSFC Transregio SFB [TRR61]
- TRR61), and the Tsinghua University Initiative [2009THZ02230]
We have developed an unconventional method for the layer-by-layer (LbL) assembly of graphene multilayer films Unconventional LbL. assembly was achieved by the following two-step process Graphene sheets were modified by pyrene-grafted poly(acrylic acid) (PAA) in aqueous solution, and then the modified graphene sheets were used for layer-by-layer alternating deposition with poly(ethyleneimine) (PEI) The graphene-multilayer-film-modified electrode shows enhanced electron transfer for the redox reactions of Fe(CN)(6)(3-) and excellent electrocatalytic activity of H2O2 On the basis of this property, a bienzyme biosensing system for the detection of maltose was fabricated by successive LbL assembly of graphene, glucose oxidase (GOx), and glucoamylase (GA) LbL assembly of graphene combines the excellent electrochemical pi opt:rues of graphene and the versatility of LbL assembly. showing great promise in highly efficient sensors and advanced biosensing systems
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