Electrontransfer through DNA and metal-containing DNA

被引：96

作者：

Carell, T ^{[1
]}

Behrens, C ^{[1
]}

Gierlich, J ^{[1
]}

机构：

[1] Univ Marburg, Dept Chem, D-35032 Marburg, Germany

来源：

ORGANIC & BIOMOLECULAR CHEMISTRY | 2003年 / 1卷 / 13期

关键词：

D O I：

10.1039/b303754a

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

DNA is currently explored as a new material for functional, molecular nano-architectures. In this respect, one major question is to transform DNA into a conducting material which has the potential for self-assembly into electronically active networks. The article covers recent insight into how DNA transports positive ( holes) and negative ( excess electrons) charges. It was found that holes move through DNA over significant distances using a G- and to a lesser extent also A-based hopping mechanism. EPR studies and recent investigations with model systems show that excess electrons can also hop through the duplex. The second part of the article describes how DNA is currently modified, particularly coated with metals, in order to increase the conductivity.

引用

页码：2221 / 2228

页数：8

共 85 条

[1] M-DNA:: A complex between divalent metal ions and DNA which behaves as a molecular wire [J].