From cytochrome c crystals to a solid-state electron-transfer device

被引：7

作者：

Acosta, Francisco ^{[1
]}

Eid, Desir ^{[1
]}

Marin-Garcia, Liliana ^{[1
]}

Frontana-Uribe, Bernardo A. ^{[1
]}

Moreno, Abel ^{[1
]}

机构：

[1] Univ Nacl Autonoma Mexico, Inst Quim, Mexico City 04510, DF, Mexico

来源：

CRYSTAL GROWTH & DESIGN | 2007年 / 7卷 / 11期

关键词：

D O I：

10.1021/cg7009463

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work, we performed the physical characterization of cytochrome c (transport properties and temperature dependency) by dynamic light scattering methods. Additionally, the crystallization of one of the isoforms of cytochrome c is presented. The electrochemical fluid cell of the atomic force microscopy (EC-AFM) and the polypyrrole films used as chemical glue allowed cytochrome c crystals to be fixed onto the surface of the working electrode (indium tin oxide, ITO). This also permitted development of a first prototype of a solid-state electron-transfer device based on biological crystals. Finally, using the electrochemistry modulus of the AFM, cyclic voltammetry techniques were performed to characterize the electron-transfer response on the surface of crystals of cytochrome c attached to the electrode. This result confirmed the successful electron-transfer process between the ITO electrode and the protein crystal attached to the working electrode by a film of a conducting polymer (ppy).

引用

页码：2187 / 2191

页数：5

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