Long distance charge transport in DNA: The hopping mechanism

被引：606

作者：

Giese, B ^{[1
]}

机构：

[1] Univ Basel, Dept Chem, CH-4056 Basel, Switzerland

来源：

ACCOUNTS OF CHEMICAL RESEARCH | 2000年 / 33卷 / 09期

关键词：

D O I：

10.1021/ar990040b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Long-distance charge transport from a guanine radical cation (G(+.)) to a G-rich sequence is of biological importance. This reaction was studied by selective charge injection into a G, monitoring the charge transport to a GGG sequence by competing H2O-trapping. The efficiency of the charge transport diminished dramatically with increasing number of A:T base pairs between G(+.) and GGG. But in DNA strands where G's are located between the G(+.) and GGG sequence, long-distance charge transport occurred by a multistep hopping mechanism.

引用

页码：631 / 636

页数：6

共 40 条

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