Translocation of short and long polymers through an interacting pore

TL;DR

This study uses 2D Langevin dynamics simulations to explore how the position of attractive regions in nanopores affects polymer translocation times and entry frequencies, providing insights relevant to experimental observations.

Contribution

It introduces a detailed simulation analysis of how pore patterning influences polymer translocation dynamics, highlighting the importance of attractive region placement.

Findings

Pore patterning significantly affects translocation time.

Attractive region location influences polymer entry frequency.

Results qualitatively match experimental data.

Abstract

We perform two-dimensional Langevin dynamics simulations of electric-field driven polymer translocation through an attractive nanopore. We investigate the effect of the location of the attractive region using different pore patterns. This is found to have an impact on both the translocation time as a function of the chain length and on the polymer entry frequency. We qualitatively compare our results to available experimental data.