[Computer modeling the concentration characteristics of the membrane potential for polymeric membrane, separated non-homogeneous electrolyte solutions].
The influence of the concentration boundary layers on membrane potential (deltapsis) in a single-membrane system on basis of the Kedem-Katchalsky equations was described in cases of horizontally mounted neutral polymeric membrane separates non-homogeneous (mechanically unstirred) binary electrolytic solutions at different concentrations. Results of calculations of deltapsis as a function of ratio solution concentrations (Ch/Cl) at constant values of: concentration Rayleigh number (Rc), concentration polarization coefficient (zetas) and hydrostatic pressure (deltaP) were presented. Calculations were made for the case where on a one side of the membrane aqueous solution of NaCl at steady concentration 10(-3) mol x l(-1) (Cl) was placed and on the other aqueous solutions of NaCl at concentrations from 10(-3) mol x l(-1) to 2 x 10(-2) mol x l(-1) (Ch). Their densities were greater than NaCl solution's at 10(-3) mol x l(-1). It was shown that membrane potential depends on hydrodynamic state of a complex concentration boundary layer-membrane-concentration boundary layer, what is controlled by deltaP, Ch/Cl, Rc and zetas.
Slezak
Izabella H
IH
Zakład Biologii i Biofizyki Politechniki Czestochowskiej, Czestochowa.
Jasik-Slezak
Jolanta
J
Rogal
Mirosława
M
Slezak
Andrzej
A
D001692:Biological Transport; D003198:Computer Simulation; D004573:Electrolytes / Q000737:chemistry*; D008564:Membrane Potentials; D008567:Membranes, Artificial; D008956:Models, Chemical; D017711:Nonlinear Dynamics; D010539:Permeability / Q000187:drug effects; D011108:Polymers; D012965:Sodium Chloride / Q000737:chemistry; D012996:Solutions / Q000737:chemistry*; D014867:Water
D004573:Electrolytes; D008567:Membranes, Artificial; D011108:Polymers; D012996:Solutions; D014867:Water; D012965:Sodium Chloride