Scaling exponents of Forced Polymer Translocation through a nano-pore

Abstract

We investigate several scaling properties of a translocating homopolymer through a thin pore driven by an external field present inside the pore only using Langevin Dynamics (LD) simulation in three dimension (3D). Specifically motivated by several recent theoretical and numerical studies that are apparently at odds with each other, we determine the chain length dependence of the scaling exponents of the average translocation time, the average velocity of the center of mass, $<v_{CM}>$, the effective radius of gyration during the translocation process, and the scaling exponent of the translocation coordinate ($s$-coordinate) as a function of the translocation time. We further discuss the possibility that in the case of driven translocation the finite pore size and its geometry could be responsible that the veclocity scaling exponent is less than unity and discuss the dependence of the scaling exponents on the pore geometry for the range of $N$ studied here.

6 pages, 4 figures. Submitted to J. Chem. Phys

References in corpus (17)

• Anomalous Dynamics of Forced Translocation
• Nonequilibrium dynamics of polymer translocation and straightening
• Langevin Dynamics Simulations of Polymer Translocation through Nanopores
• Polymer translocation through a nanopore - a showcase of anomalous diffusion
• Polymer translocation through a nanopore: a two-dimensional Monte Carlo simulation
• Driven polymer translocation through a nanopore: a manifestation of anomalous diffusion
• Anomalous Dynamics of Unbiased Polymer Translocation through a Narrow Pore
• Polymer translocation through a nanopore under an applied external field
• Comment on ``Passage Times for Unbiased Polymer Translocation through a Narrow Pore''
• Dynamical Scaling Exponents for Polymer Translocation through a Nanopore
• Pore-blockade Times for Field-Driven Polymer Translocation
• Passage Times for Unbiased Polymer Translocation through a Narrow Pore
• Dynamics of forced biopolymer translocation
• Heteropolymer translocation through nanopores
• Non-driven polymer translocation through a nanopore: computational evidence that the escape and relaxation processes are coupled
• Probability distributions for polymer translocation
• Scaling in rupture of polymer chains

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• Unifying model of driven polymer translocation
• Driven polymer translocation through nanopores: slow versus fast dynamics
• Influence of non-universal effects on dynamical scaling in driven polymer translocation
• Forced translocation of a polymer: dynamical scaling vs. MD-simulation
• Iso-Flux Tension Propagation Theory of Driven Polymer Translocation: The Role of Initial Configurations
• Out of Equilibrium Characteristics of a Forced Translocating Chain through a Nanopore
• Scaling theory of driven polymer translocation
• Fractional Brownian motion approach to polymer translocation: the governing equation of motion
• Process Time Distribution of Driven Polymer Transport
• Through the Eye of the Needle: Recent Advances in Understanding Biopolymer Translocation
• Polymer translocation into a fluidic channel through a nanopore
• Polymer Translocation Dynamics in the Quasi-Static Limit
• Theory of pore-driven and end-pulled polymer translocation dynamics through a nanopore: An overview
• Theory of polymer translocation through a flickering nanopore under an alternating driving force
• The chain sucker: translocation dynamics of a polymer chain into a long narrow channel driven by longitudinal flow
• Driven translocation of a polymer: fluctuations at work
• Driven polymer translocation through a cylindrical nanochannel: Interplay between the channel length and the chain length
• Dynamics of end-pulled polymer translocation through a nanopore
• Using a Péclet Number for the Translocation of Polymer through a Nanopore to Tune Coarse-Grained Simulations to Experimental Conditions
• Polymer translocation into laterally unbounded confined environments
• Anomalous zipping dynamics and forced polymer translocation
• Evaluating the Applicability of the Fokker-Planck Equation in Polymer Translocation: A Brownian Dynamics Study
• Tug-of-War in a Double-Nanopore System
• Free Energy Evaluation in Polymer Translocation via Jarzynski Equality
• Statistical mechanics of a polymer chain attached to the interface of a cone-shaped channel
• Markovian Description of Unbiased Polymer Translocation
• Mapping diffusivity of narrow channels into one-dimension
• Markov Chain Modeling of Polymer Translocation Through Pores
• Effects of interaction between nanopore and polymer on translocation time