https://doi.org/10.1140/epjp/s13360-023-03831-7
Regular Article
Study of unzipping transitions in an adsorbed polymer by a periodic force
Department of Physical Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, Knowledge City, S. A. S. Nagar, PO 140306, Manauli, Punjab, India
Received:
30
October
2022
Accepted:
21
February
2023
Published online:
11
March
2023
Using Monte Carlo simulations, we study the dynamic transitions in the unzipping of an adsorbed homogeneous polymer on a surface (or wall). We consider three different types of surfaces. One end of the polymer is always kept anchored, and another end monomer is subjected to a periodic force with frequency 
and amplitude 
. We observe that the force-distance isotherms show hysteresis loops in all three cases. For all three cases, it is found that the area of the hysteresis loop, 
, scales as 
in the higher frequency regime, and as 
with exponents 
and 
in the lower-frequency regime. The values of exponents 
and 
are similar to the exponents obtained in the earlier Monte Carlo simulation studies of DNA chains and a Langevin dynamics simulation study of longer DNA chains.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
