Journal
PHYSICS LETTERS A
Volume 374, Issue 10, Pages 1214-1217Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2009.12.077
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Funding
- US Department of Energy [DE-AC52-06NA25396]
- National Institutes of Health [1101 GM073911]
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We consider the influence of a terahertz field on the breathing dynamics of double-stranded DNA. We model the spontaneous formation of spatially localized openings of a damped and driven DNA chain, and find that linear instabilities lead to dynamic dimerization, while true local strand separations require a threshold amplitude mechanism. Based on our results we argue that a specific terahertz radiation exposure may significantly affect the natural dynamics of DNA, and thereby influence intricate molecular processes involved in gene expression and DNA replication. (C) 2010 Elsevier B.V. All rights reserved.
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