Direct electrochemistry and electrocatalysis of horseradish peroxidase immobilized in sol-gel-derived ceramic-carbon nanotube nanocomposite film

被引：173
|
作者：
Chen, Hongjun
Dong, Shaojun [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jinan, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
BIOSENSORS & BIOELECTRONICS | 2007年 / 22卷 / 08期
基金：
中国国家自然科学基金;
关键词：
horseradish peroxidase; carbon nanotube; silica sol-gel; electrocatalysis;
D O I：
10.1016/j.bios.2006.08.013
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
The sol-gel-derived ceramic-carbon nanotube (SGCCN) nanocomposite film fabricated by doping multiwall carbon nanotubes (MWNTs) into a silicate get matrix was used to immobilize protein. The SGCCN film can provide a favorable microenvironment for horseradish peroxidase (HRP) to perform direct electron transfer (DET) at glassy carbon electrode. The HRP immobilized in the SGCCN film shows a pair of well-defined redox waves and retains its bioelectrocatalytic activity to the reduction of O-2 and H2O2, which is superior to that immobilized in silica sol-gel film. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：1811 / 1815
页数：5
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