Reversible pore gating in aqueous mixtures via external potential

Sela Samin, Yoav Tsori

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


We examine theoretically porous membranes in aqueous mixtures. We show that large membrane pores can be reversibly gated from 'off' (co-solvent-rich, poor conductor of ions and other solutes) to 'on' (water-rich, good conductor) states by an external potential. The transition voltage or charge for switching depends on the membrane hydrophilicity/hydrophobicity, the salt content, the preferential solvation of the salt ions, and the temperature. These parameters also determine whether the filling transition is abrupt or gradual.

Original languageEnglish
Pages (from-to)9-12
Number of pages4
JournalColloids and Interface Science Communications
StatePublished - 1 May 2016

ASJC Scopus subject areas

  • Biotechnology
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry
  • Materials Chemistry


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