Reversible pore gating in aqueous mixtures via external potential

Sela Samin, Yoav Tsori

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

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
Volume12
DOIs
StatePublished - 1 May 2016

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