Simple model for semipermeable membrane: Donnan equilibrium

Felipe Jiménez-Ángeles, Marcelo Lozada-Cassou*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


We study a model for macroions in an electrolyte solution, confined by a semipermeable membrane. The membrane finite thickness is considered, and both membrane surfaces are uniformly charged. The model explicitly includes electrostatic and size particles correlations. Our study is focused on the adsorption of macroions on the membrane surface and on the osmotic pressure. The theoretical prediction for the osmotic pressure shows a good agreement with experimental results.

Original languageEnglish (US)
Pages (from-to)1719-1730
Number of pages12
JournalJournal of Physical Chemistry B
Issue number5
StatePublished - Feb 5 2004
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry


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