Polarization of non-equilibrium double layer and agglomeration of polyelectrolyte balls

A. Cebers, I. Rubinstein

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Non-equilibrium polarizability of a polyelectrolyte ball is calculated in the framework of a quasi-onedimensional model, taking into account the concentration polarization phenomenon. This non-equilibrium polarizability is shown to be proportional to the volume of a polyball and to have a negative sign. Based on these results, the available experimental data on the aggregation phenomena in DNA solutions are considered in terms of the electric field induced phase separation. Numerical estimates for the critical electric field strength necessary for the aggregation to take place and the frequency range where it is observed are in a reasonable agreement with experiment. In the framework of this model, the internal circulations observed in the DNA aggregates are interpreted as being due to the spontaneous rotation of polyelectrolyte balls with a negative polarizability.

Original languageEnglish
Pages (from-to)2334-2340
Number of pages7
JournalInternational Journal of Modern Physics B
Volume16
Issue number17-18
DOIs
StatePublished - 20 Jul 2002

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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