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

T. Ikonen, A. Bhattacharya, T. Ala-Nissilä, W. Sung

Research output: Contribution to journalArticleScientificpeer-review

49 Citations (Scopus)
23 Downloads (Pure)

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.
Original languageEnglish
Article number085101
Pages (from-to)1-12
JournalJournal of Chemical Physics
Volume137
Issue number8
DOIs
Publication statusPublished - 2012
MoE publication typeA1 Journal article-refereed

Keywords

  • dynamics of biopolymers
  • polymer translocation
  • soft matter
  • theory and simulation

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