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Electronic transport in DNA - the disorder perspective
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UNSPECIFIED (2005) Electronic transport in DNA - the disorder perspective. In: 27th International Conference on the Physics of Semiconductors (ICPS-27), Flagstaff, AZ, JUL 26-30, 2004. Published in: Physics of Semiconductors, Pts A and B, 772 pp. 1093-1094. ISBN 0-7354-0257-4. ISSN 0094-243X.
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Abstract
We are investigating the electronic properties of DNA by looking at a tight-binding model and four DNA sequences. The charge transfer is studied in terms of localisation lengths as a function of Fermi energy and backbone disorder, the latter accounting for different environments. We have performed calculations on poly(dG)-poly(dC), telomeric DNA, random-ATGC DNA, X-DNA and find that random-ATGC and X-DNA have localization lengths allowing for electron motion among a few dozen base pairs only, whereas for telomeric and poly(dG)-poly(dC) DNA they are much larger. Enhancement of localisation lengths is observed at particular energies for an increasing binary backbone disorder.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science > QC Physics | ||||
Series Name: | AIP CONFERENCE PROCEEDINGS | ||||
Journal or Publication Title: | Physics of Semiconductors, Pts A and B | ||||
Publisher: | AMER INST PHYSICS | ||||
ISBN: | 0-7354-0257-4 | ||||
ISSN: | 0094-243X | ||||
Editor: | Menendez, J and VanDeWalle, CG | ||||
Official Date: | 2005 | ||||
Dates: |
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Volume: | 772 | ||||
Number of Pages: | 2 | ||||
Page Range: | pp. 1093-1094 | ||||
Publication Status: | Published | ||||
Title of Event: | 27th International Conference on the Physics of Semiconductors (ICPS-27) | ||||
Location of Event: | Flagstaff, AZ | ||||
Date(s) of Event: | JUL 26-30, 2004 |
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