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

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 experiment...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of chemical physics 2012-08, Vol.137 (8), p.085101-085101
Main Authors: Ikonen, T, Bhattacharya, A, Ala-Nissila, T, Sung, W
Format: Article
Language:English
Subjects:
Computer simulation
Dynamic tests
Dynamics
Mathematical analysis
Mathematical models
Molecular dynamics
Molecular Dynamics Simulation
Polymers - chemistry
Propagation (polymerization)
Simulation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.4742188