Direct Electrochemistry of Glucose Oxidase and Biosensing for Glucose Based on Graphene

We first reported that polyvinylpyrrolidone-protected graphene was dispersed well in water and had good electrochemical reduction toward O2 and H2O2. With glucose oxidase (GOD) as an enzyme model, we constructed a novel polyvinylpyrrolidone-protected graphene/polyethylenimine-functionalized ionic li...

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Bibliographic Details
Published in:Analytical chemistry (Washington) 2009-03, Vol.81 (6), p.2378-2382
Main Authors: Shan, Changsheng, Yang, Huafeng, Song, Jiangfeng, Han, Dongxue, Ivaska, Ari, Niu, Li
Format: Article
Language:English
Subjects:
Analytical chemistry
Biological and medical sciences
Biosensing Techniques
Biosensors
Biotechnology
Carbon - chemistry
Chemical compounds
Chemistry
Electrochemical methods
Electrochemical Techniques - methods
Electron Transport
Enzymes
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
Glucose
Glucose - analysis
Glucose Oxidase - metabolism
Ionic Liquids - chemistry
Methods. Procedures. Technologies
Oxidation
Oxidation-Reduction
Oxygen
Polyethyleneimine - chemistry
Povidone - chemistry
Various methods and equipments
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Summary:We first reported that polyvinylpyrrolidone-protected graphene was dispersed well in water and had good electrochemical reduction toward O2 and H2O2. With glucose oxidase (GOD) as an enzyme model, we constructed a novel polyvinylpyrrolidone-protected graphene/polyethylenimine-functionalized ionic liquid/GOD electrochemical biosensor, which achieved the direct electron transfer of GOD, maintained its bioactivity and showed potential application for the fabrication of novel glucose biosensors with linear glucose response up to 14 mM.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac802193c