Issue 7, 2005

Effects of dynamic disorder on the charge transport via DNA molecules

Abstract

Electron hopping transport along the DNA chain is studied theoretically by a straightforward numerical solution of the time-dependent Schrödinger equation. Results are given for the hole transition rates between two guanine bases bridged by sequences of the adenine–thymine bases with various lengths. Two models are considered: (i) with time-independent chain structure and (ii) with positions of bases on the bridge oscillating with time. It is shown that only the latter model is consistent with experimental data. The problem of the incoherence in the hopping transport mechanism is discussed.

Graphical abstract: Effects of dynamic disorder on the charge transport via DNA molecules

Article information

Article type
Paper
Submitted
08 Nov 2004
Accepted
24 Dec 2004
First published
11 Jan 2005

Phys. Chem. Chem. Phys., 2005,7, 1514-1517

Effects of dynamic disorder on the charge transport via DNA molecules

J. Matulewski, S. D. Baranovskii and P. Thomas, Phys. Chem. Chem. Phys., 2005, 7, 1514 DOI: 10.1039/B417022A

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