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

Founded: 1982
ISSN 1338-4325 (online)
ISSN 0231-5882 (print)
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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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