Home General Physiology and Biophysics 2008 General Physiology and Biophysics Vol.27, p.315-321, 2008

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Quarterly, 80 pp. per issue
Founded: 1982
ISSN  1338-4325 (online)

Published in English

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General Physiology and Biophysics Vol.27, p.315-321, 2008

Title: Transport of non-electrolyte solutions through membrane with concentration polarization
Author: Sławomir Grzegorczyn, Jolanta Jasik-Ślęzak, Katarzyna Michalska-Małecka and Andrzej Ślęzak

Abstract:  Mathematical model of the volume fluxes through neutral membrane with concentration boundary layers on both sides of this membrane is presented. This model, based on the Kedem-Katchalsky equations, describes the volume flux generated by osmotic and hydrostatic forces for non-homogeneous and non-electrolyte solutions. Nonlinear equation for volume flux was used for numerical calculation in linear regime of hydrodynamic stability. In the steady state of non-homogeneous solutions the dependence of volume flux on pressure difference is shifted with regard to this dependence for homogeneous solution, while the volume flux as a function of osmotic pressure between chambers is characterized by different angle of inclination for homogeneous and non-homogeneous solutions.

Keywords: Membrane transport — Kedem-Katchalsky equations — Concentration boundary layers
Year: 2008, Volume: 27, Issue: 4 Page From: 315, Page To: 321

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