VOLTAMMETRY OF COVALENTLY IMMOBILIZED CYTOCHROME-C ON SELF-ASSEMBLED MONOLAYER ELECTRODES

被引：263

作者：

COLLINSON, M

BOWDEN, EF

TARLOV, MJ

机构：

[1] N CAROLINA STATE UNIV,DEPT CHEM,RALEIGH,NC 27695

[2] NIST,DIV PROC MEASUREMENTS,GAITHERSBURG,MD 20899

来源：

LANGMUIR | 1992年 / 8卷 / 05期

关键词：

D O I：

10.1021/la00041a004

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cytochrome c was covalently immobilized on carboxylic acid terminated self-assembled monolayer gold electrodes via electrostatically guided carbodiimide coupling. Covalently immobilized cytochrome c was found to be stable, electroactive, and functional. Cyclic voltammetry revealed an electroactive coverage corresponding to ca. one-third monolayer and a surface formal potential slightly negative of the value obtained for electrostatically adsorbed cytochrome c. Electron transfer kinetic results suggest that covalently immobilized and electrostatically adsorbed cytochrome c are similarly oriented at the electrode surface.

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页码：1247 / 1250

页数：4

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