Polymer translocation out of confined environments

Kaifu Luo, Ralf Metzler, Tapio Ala-Nissilä, See-Chen Ying

Research output: Contribution to journalArticleScientificpeer-review

25 Citations (Scopus)
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Abstract

We consider the dynamics of polymer translocation out of confined environments. Analytic scaling arguments lead to the prediction that the translocation time scales like τ∼Nβ+ν2DR1+(1−ν2D)/ν for translocation out of a planar confinement between two walls with separation R into a three-dimensional (3D) environment, and τ∼Nβ+1R for translocation out of two strips with separation R into a two-dimensional (2D) environment. Here, N is the chain length, ν and ν2D are the Flory exponents in 3D and 2D, and β is the scaling exponent of translocation velocity with N, whose value for the present choice of parameters is β≈0.8 based on Langevin dynamics simulations. These scaling exponents improve on earlier predictions.
Original languageEnglish
Article number021907
Pages (from-to)1-5
JournalPhysical Review E
Volume80
Issue number2
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

Keywords

  • translocation
  • polymer dynamics

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