Electron channels in biomolecular nanowires
Soft Condensed Matter
2007-05-23 v1 Materials Science
Abstract
We report a first-principle study of the electronic and conduction properties of a quadruple-helix guanine wire (G4-wire), a DNA-derivative, with inner potassium ions. The analysis of the electronic structure highlights the presence of energy manifolds that are equivalent to the bands of (semi)conducting materials, and reveals the formation of extended electron channels available for charge transport along the wire. The specific metal-nucleobase interactions affect the electronic properties at the Fermi level, leading the wire to behave as an intrinsically p-doped system.
Cite
@article{arxiv.cond-mat/0401012,
title = {Electron channels in biomolecular nanowires},
author = {Arrigo Calzolari and Rosa Di felice and Elisa Molinari and Anna Garbesi},
journal= {arXiv preprint arXiv:cond-mat/0401012},
year = {2007}
}
Comments
To be published in Journal of Physical Chemistry B, 8 pages (double column), 4 figures