Structure of ions and water around a polyelectrolyte in a polarizable nanopore

Lei Guo, Erik Luijten*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We study the distribution of ions and water within a pore in a polarizable membrane, in the presence of a stiff polyelectrolyte threaded through the pore. In this system, which represents a typical situation during the translocation of DNA, the distribution of both the ions and the water molecules is affected by the induced charges on the surface of the polarizable nanopore. Specifically, the concentration of counterions is enhanced near the surface of the pore, due to the attractive interaction with the induced charges. Conversely, the water within the pore is depleted, as a result of the disruption of hydrogen bonds by the induced charges.

Original languageEnglish (US)
Pages (from-to)1485-1492
Number of pages8
JournalInternational Journal of Modern Physics C
Volume20
Issue number9
DOIs
StatePublished - Sep 2009

Keywords

  • Nanopore
  • Polarization
  • Polyelectrolyte
  • Translocation

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Physics and Astronomy(all)
  • Computer Science Applications
  • Computational Theory and Mathematics

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