Title

Influence of non-universal effects on dynamical scaling in driven polymer translocation

Authors

Authors

T. Ikonen; A. Bhattacharya; T. Ala-Nissila;W. Sung

Comments

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Abbreviated Journal Title

J. Chem. Phys.

Keywords

NANOPORE; DIFFUSION; EXPONENTS; MEMBRANE; FORCE; PORE; Physics, Atomic, Molecular & Chemical

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. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4742188]

Journal Title

Journal of Chemical Physics

Volume

137

Issue/Number

8

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

12

WOS Identifier

WOS:000308416800056

ISSN

0021-9606

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