Polyelectrolyte condensation induced by linear cations

Camilo Guáqueta*, Erik Luijten

*Corresponding author for this work

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

We examine the role of the condensing agent in the formation of polyelectrolyte bundles, via grand-canonical Monte Carlo simulations. Following recent experiments we use linear, rigid divalent cations of various lengths to induce condensation. Our results clarify and explain the experimental results for short cations. For longer cations we observe novel condensation behavior owing to the alignment of the cations. We also study the role of the polyelectrolyte surface-charge density, and find a nonmonotonic variation in bundle stability. This nonmonotonicity captures two trends that have been observed in separate experiments.

Original languageEnglish (US)
Article number138302
JournalPhysical review letters
Volume99
Issue number13
DOIs
StatePublished - Sep 26 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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