Response of the electric conductivity of double-stranded DNA on moderate mechanical stretching stresses
2012
The response of charge transport in double-stranded DNA to mechanical pulling has been studied with a multiscale computational method using classical molecular dynamics simulation, approximative density-functional theory calculations and the Landauer-B\"uttiker theory. The effect depends on the exact nucleobase sequence notably, and this is explained in terms of structural changes of DNA upon stretching. The results of recent single-molecule experiments are interpreted on the basis of current results. Further, recommendations for the design of DNA sequences for nanoelectronic applications are formulated.
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