Hole Mobility in DNA A Tracts

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 in...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2006-12, Vol.45 (47), p.7982-7985
Main Authors: Lewis, Frederick D., Zhu, Huihe, Daublain, Pierre, Cohen, Boiko, Wasielewski, Michael R.
Format: Article
Language:English
Subjects:
DNA - chemistry
DNA - metabolism
DNA conjugates
Electric Conductivity
electron transfer
Electron Transport
hole hopping
hole injection
hole trapping
Kinetics
Nucleic Acid Conformation
Spectrum Analysis
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Summary: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. (○, •).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200603455