Thermoosmosis through charged membranes. Theoretical analysis of concentration dependence
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Updated: Oct 13, 2026

Introduction to Solid Supported Membrane Based Electrophysiology
Published on: May 11, 2013
Abstract:
A theoretical equation for thermoosmosis through charged membranes in electrolyte solutions is derived from nonequilibrium thermodynamics. The theory shows that the volume flux through the membrane is proportional to the temperature difference across the membrane. The proportionality constant, i.e., the thermoosmotic coefficient is a function of electrolyte concentration. The electrolyte concentration dependence of the thermoosmotic coefficient calculated is compared with our previous experimental results. Agreement between theory and experiments is satisfactory.
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