Influence of non-universal effects on dynamical scaling in driven polymer translocation
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© 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. http://scitation.aip.org/content/aip/journal/jcp
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2012
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Mcode
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Language
en
Pages
214901
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The Journal of Chemical Physics, Volume 137, Issue 8
Abstract
We study the dynamics of driven polymer translocation using both molecular dynamics (MD) simulations and a theoretical model based on the non-equilibrium tension propagation on the cis side subchain. We present theoretical and numerical evidence that the non-universal behavior observed in experiments and simulations are due to finite chain length effects that persist well beyond the relevant experimental and simulation regimes. In particular, we consider the influence of the pore-polymer interactions and show that they give a major contribution to the non-universal effects. In addition, we present comparisons between the theory and MD simulations for several quantities, showing extremely good agreement in the relevant parameter regimes. Finally, we discuss the potential limitations of the present theories.Description
Keywords
polymers, friction, molecular dynamics, dynamics of biopolymers, theory and simulation, polymer translocation, soft matter
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Citation
Ikonen, T. & Bhattacharya, A. & Ala-Nissilä, Tapio & Sung, W. 2012. Influence of non-universal effects on dynamical scaling in driven polymer translocation. The Journal of Chemical Physics. Volume 137, Issue 8. 214901. 0021-9606 (printed). DOI: 10.1063/1.4742188.