Polymer translocation: the effect of backflow.

I. Ali*, J. M. Yeomans

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


We investigate the effect of backflow on the translocation dynamics of short, flexible polymer chains threading through a small hole in a wall. We find that hydrodynamic interactions between polymer beads play an important role in determining the translocation time distribution: as a monomer moves through the hole it sets up a flow field which transfers momentum to neighboring monomers, thus helping them to move in the same direction. Translocation times are calculated by using the velocity-Verlet algorithm to solve the equations of motion of a polymer which moves in a fluid described by the stochastic rotation algorithm, a particle-based Navier-Stokes solver.

Original languageEnglish
Pages (from-to)234903
Number of pages1
JournalJournal of Chemical Physics
Issue number23
Publication statusPublished - Dec 15 2005

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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