Direct electron transfer of horseradish peroxidase and its electrocatalysis based on carbon nanotube/thionine/gold composites

被引：66

作者：

Wang, Zhijuan ^{[1
,2
]}

Li, Meiye ^{[1
]}

Su, Pingping ^{[2
]}

Zhang, Yuanjlan ^{[1
]}

Shen, Yanfei ^{[1
]}

Han, Dongxue ^{[1
,2
]}

Ivaska, Ari ^{[2
]}

Niu, Li ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanal Chem, Changchun 130022, Peoples R China

[2] Abo Akad Univ, Proc Chem Ctr, Analyt Chem Lab, FI-20500 Turku, Finland

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 02期

基金：

中国国家自然科学基金;

关键词：

horseradish peroxidase; direct electrochemistry; multiwalled carbon nanotubes; gold nanoparticles;

D O I：

10.1016/j.elecom.2007.12.011

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Horseradish peroxidase (HRP) was incorporated into multiwalled carbon nanotube/thionine/Au (MTAu) composite film by electrostatic interactions between positively charged HRP and negatively charged MTAu composite. The results of electrochemical impedance spectroscopy (EIS) confirmed adsorption of HRP on the surface of MTAu modified GC electrode. Moreover, the electrochemical results showed that HRP retained its bioactivity and bioelectrocatalytical activity, and also showed good direct electron transfer behavior on such a composite film. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：306 / 310

页数：5

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