Immobilization and direct electrochemistry of cytochrome c at a single-walled carbon nanotube-modified electrode

被引：43

作者：

Yin, Yajing ^{[1
]}

Wu, Ping ^{[1
]}

Lue, Yafen ^{[1
]}

Du, Pan ^{[1
]}

Shi, Yanmao ^{[1
]}

Cai, Chenxin ^{[1
]}

机构：

[1] Nanjing Normal Univ, Dept Chem, Jiangsu Key Lab Mol & Med Biotechnol, Nanjing 210097, Peoples R China

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2007年 / 11卷 / 03期

关键词：

carbon nanotube; electrochemical properties; catalytic properties; biocompatibility;

D O I：

10.1007/s10008-006-0160-9

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A single-walled carbon nanotube (SWNT)-modified electrode was fabricated and characterized by SEM and ac impedance techniques. The direct electrochemistry of cytochrome c (Cyt c), which was adsorbed on the surface of the SWNT, was studied by cyclic voltammetry. The results from cyclic voltammetry and infrared spectroscopy indicated that Cyt c remained in its original structure and did not undergo structural change after its immobilization on the SWNT. Further results demonstrated that the SWNT had promotional effects on the direct electron transfer of Cyt c and also indicated that the immobilized Cyt c retained its electrocatalytic activity to the reduction of H2O2. This modified electrode might be used in development of new biosensors and the biofuel cells.

引用

页码：390 / 397

页数：8

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