Polymer translocation out of confined environments

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 $\tau \sim N^{\beta +{\nu }_{2D}}{R}^{1+(1-{\nu }_{2D})/\nu }$ for translocation out of a planar confinement between two walls with separation $R$ into a 3D environment, and $\tau \sim N^{\beta +1}R$ for translocation out of two strips with separation $R$ into a 2D environment. Here, $N$ is the chain length, $\nu$ and ${\nu }_{2D}$ are the Flory exponents in 3D and 2D, and $\beta$ is the scaling exponent of translocation velocity with $N$, whose value for the present choice of parameters is $\beta \approx 0.8$ based on Langevin dynamics simulations. These scaling exponents improve on earlier predictions.

5 pages, 5 figures. To appear in Phys. Rev. E

References in corpus (8)

• Influence of polymer-pore interactions on translocation
• Sequence dependence of DNA translocation through a nanopore
• Polymer translocation through a nanopore - a showcase of anomalous diffusion
• Driven polymer translocation through a nanopore: a manifestation of anomalous diffusion
• Comment on ``Passage Times for Unbiased Polymer Translocation through a Narrow Pore''
• Dynamical Scaling Exponents for Polymer Translocation through a Nanopore
• Heteropolymer translocation through nanopores
• Polymer Translocation out of Planar Confinements