Polymer translocation

the effect of backflow.

I. Ali, J. M. Yeomans

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

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
Volume123
Issue number23
DOIs
Publication statusPublished - Dec 15 2005

Fingerprint

Polymers
polymers
monomers
Monomers
Momentum transfer
beads
Equations of motion
momentum transfer
Flow fields
flow distribution
equations of motion
Hydrodynamics
hydrodynamics
Fluids
fluids
interactions
Direction compound

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Polymer translocation : the effect of backflow. / Ali, I.; Yeomans, J. M.

In: Journal of Chemical Physics, Vol. 123, No. 23, 15.12.2005, p. 234903.

Research output: Contribution to journalArticle

Ali, I. ; Yeomans, J. M. / Polymer translocation : the effect of backflow. In: Journal of Chemical Physics. 2005 ; Vol. 123, No. 23. pp. 234903.
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