Acta Phys. -Chim. Sin. ›› 2007, Vol. 23 ›› Issue (07): 1053-1058.doi: 10.3866/PKU.WHXB20070717

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Direct Electrochemistry and Immobilization of Glucose Oxidase on Carbon Black

MA Guo-Xian; ZHONG Hui; LU Tian-Hong; XIA Yong-Yao   

  1. Department of Chemistry, Fudan University, Shanghai 200433, P. R. China; Department of Chemistry, Huaiyin Teachers College, Huaian 223300, Jiangsu Province, P. R. China; School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097, P. R. China
  • Received:2007-01-02 Revised:2007-03-13 Published:2007-07-03
  • Contact: XIA Yong-Yao

Abstract: The IR spectroscopic and electrochemical measurements demonstrated that glucose oxidase (GOx) could be immobilized on the surface of carbon black (CB) using a simple adsorptionmethod. The electrochemical measurements indicated that GOx immobilized on CB could undergo the quasi-reversible and direct electrochemical reaction and keep the bioelectrocatalytic activity for the glucose oxidation. Even after conservation for two weeks, its electrocatalytic activity decreased only 5%, illustrating the good stability of GOx immobilized on CB.

Key words: Glucose oxidase, Carbon black, Glucose, Direct electrochemistry, Biofuel cell


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