Journal ArticleDOI
Thermodynamic analysis of the permeability of biological membranes to non-electrolytes
Ora Kedem,Aharon Katchalsky +1 more
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TLDR
The equations derived here have been applied to various permeability measurements found in the literature, such as the penetration of heavy water into animal cells, permeability of blood vessels, threshold concentration of plasmolysis and relaxation experiments with artificial membranes.About:
This article is published in Biochimica et Biophysica Acta.The article was published on 1958-01-01. It has received 1960 citations till now. The article focuses on the topics: Membrane & Permeability (earth sciences).read more
Citations
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Optimum design of reverse osmosis systems for hydrogen peroxide ultrapurification
TL;DR: In this article, a reverse osmosis network is proposed for the ultrapurification of chemicals, from technical grade to semiconductor grades demanded in electronic applications that require the use of high-purity wet chemicals in the semiconductor manufacturing, such as hydrogen peroxide that is commonly used in the wafer cleaning and surface conditioning processes.
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Cation effects on volume and water permeability in the halophilic algaeDunaliella parva
TL;DR: Kinetics of volume change in response to changes in outside salt concentration are best described by two kinetic coefficients differing by one order of magnitude and dependent on the nature of the outside cation as well as on direction of water flow.
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Integration of Ultrafiltration Unit Operations in Biotechnology Process Design
TL;DR: In this paper, a stepwise process design approach is proposed to model membrane unit operations generally in combination with experimental model parameter determination in laboratory scale, in order to predict the purification performance a priori by simulations for multicomponent mixtures.
Journal ArticleDOI
Osmotic reflection coefficients of canine subcutaneous adipose tissue endothelium.
Kathryn W. Ballard,William Perl +1 more
TL;DR: The relatively high capacity for filtration of adipose tissue capillaries (compared with those in skeletal muscle) was confirmed and the observed reflection coefficients for exchange vessels in fat were about one tenth of the values reported for lung, cardiac, and skeletal muscle endothelium.
Journal ArticleDOI
Discontinuous Galerkin Methods for Mass Transfer through Semipermeable Membranes
TL;DR: A discontinuous Galerkin (dG) method for the numerical solution of initial/boundary value multicompartment partial differential equation models, interconnected with interface conditions, is presented and analyzed.
References
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Journal ArticleDOI
Filtration, diffusion and molecular sieving through peripheral capillary membranes; a contribution to the pore theory of capillary permeability.
TL;DR: Theoretical and experimental studies on the sieving of molecules by ultrafiltration through porous membranes indicate that an effective pore diameter of at least IOO A would be required to explain permeability of this magnitude.
Journal ArticleDOI
Passage of Molecules Through Capillary Walls
TL;DR: A wealth of evidence supports the view that the exchange of materials through the walls of living capillaries takes place by physical processes which involve no expenditure of energy on the part of the capillary endothelial cells themselves.
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Thermodynamics of hyperfiltration (reverse osmosis): criteria for efficient membranes
K.S. Spiegler,Ora Kedem +1 more