Direct electron-transfer of myoglobin within a new zwitterionic gemini surfactant film and its analytical application for H2O2 detection

被引：14

作者：

Wang, Fang ^{[1
,2
,3
]}

Hu, Shengshui ^{[1
,3
]}

机构：

[1] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China

[2] Wuhan Univ, Coll Pharm, Dept Pharmaceut Anal, Wuhan 430072, Peoples R China

[3] Chinese Acad Sci, State Key Lab Transducer Technol, Beijing 100080, Peoples R China

来源：

COLLOIDS AND SURFACES B-BIOINTERFACES | 2008年 / 63卷 / 02期

基金：

中国国家自然科学基金;

关键词：

direct electron-transfer; myoglobin; gemini surfactant; biosensor; hydrogen peroxide;

D O I：

10.1016/j.colsurfb.2007.12.020

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

The direct electron-transfer of myoglobin in a new zwitterionic gemini surfactant film with glassy carbon electrode surface has been investigated. A pair of well-defined and quasi-reversible voltammetric peaks was observed at -0.34 and -0.30 V due to the direct electron-transfer of the redox couple of Mb (Fe-III/Fe-II). The voltammetric responses of myoglobin-surfactant film under different pH and scan rate conditions were obtained. The presence of hydrogen peroxide changed the typical electrochemical behaviors in terms of bioelectrocatalysis of myoglobin to hydrogen peroxide, and a higher sensitive electroanalytical method for the determination of hydrogen peroxide has been developed. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：262 / 268

页数：7

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