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Simulation of concentration polarization in electrokinetic processes by network thermodynamic methods
J Horno1, C F González-Fernández, A Hayas
1Department of Applied Physics, University College of Jaén, Spain.
Biophysical Journal
|March 1, 1989
Summary
Network thermodynamics models concentration polarization effects on membrane electrokinetic properties. Simulations reveal concentration profiles and potential drops in algal cells and particle plugs.
Area of Science:
- Physical Chemistry
- Biophysics
- Membrane Science
Background:
- Concentration polarization impacts electrokinetic measurements in membrane systems.
- Understanding these effects is crucial for accurate characterization of physical and biological membranes.
Purpose of the Study:
- To investigate the influence of concentration polarization on electrokinetic property determination.
- To develop a network model for simulating polarization phenomena.
Main Methods:
- Applied network thermodynamics techniques.
- Developed a network model for transport number discontinuities.
- Utilized the SPICE circuit simulation program for modeling.
Main Results:
- Simulated concentration profiles across membranes.
- Modeled potential drop across membranes.
- Validated the model using polystyrene particle plugs and giant algal cells.
Conclusions:
- Network thermodynamics provides a viable approach to study concentration polarization in membrane systems.
- The proposed model accurately simulates key parameters affected by polarization.