Volume 121, Number 1, January 2018
|Number of page(s)||6|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||05 March 2018|
DNA unzipping with asymmetric periodic forces: Robustness of the scaling behavior of hysteresis loop
Department of Physics, Banaras Hindu University - Varanasi - 221005, India
Received: 12 October 2017
Accepted: 14 February 2018
We study the effect of periodic unzipping forces (symmetric and asymmetric) on the steady-state hysteresis loop area of force-extension curves of DNA. For the triangular force, we get back the previously reported scaling exponents but for the ratchet force, we find that the scaling exponents deviate from the reported ones. We also study the temperature dependence of the scaling exponents for the triangular force. At the low-frequency regime, the choice of the scaling form determines whether the scaling exponents depend on the temperature or not.
PACS: 87.15.H- – Dynamics of biomolecules / 05.10.-a – Computational methods in statistical physics and nonlinear dynamics / 82.37.Rs – Single molecule manipulation of proteins and other biological molecules
© EPLA, 2018
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