Hole mobility in DNA A tracts

被引:74
作者
Lewis, Frederick D. [1 ]
Zhu, Huihe [1 ]
Daublain, Pierre [1 ]
Cohen, Boiko [1 ]
Wasielewski, Michael R. [1 ]
机构
[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
关键词
DNA conjugates; electron transfer; hole hopping; hole injection; hole trapping;
D O I
10.1002/anie.200603455
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Whole scheme of things: The kinetics and efficiency of photoinduced hole transport across DNA A tracts with 1-7 base pairs have been determined from femtosecond transient absorption spectroscopic data. These values are strongly distance dependent over the first four base pairs, but are relatively insensitive to distance at longer distances. These kinetic results (□, ■) parallel the DNA-strand-cleavage results of Giese et al. (○, Black circle). (Graph Presented). © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:7982 / 7985
页数:4
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