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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Filtration and diffusion of water across the blood-brain barrier in man.
TL;DR: The results indicate that pores or slits are not present in the blood-brain barrier and probably all water transport occurs by dissolving in the membrane phase.
Journal ArticleDOI
Modelling the mechanical properties of single suspension-cultured tomato cells.
TL;DR: The linear elastic model is very suitable for estimating wall Young's modulus from micromanipulation experiments on single suspension-cultured tomato cells, and is a powerful method for determining cell wall material properties.
Journal ArticleDOI
Sap flow and sugar transport in plants
Kaare H. Jensen,Kirstine Berg-Sørensen,Henrik Bruus,Noel Michele Holbrook,Johannes Liesche,Alexander Schulz,Maciej A. Zwieniecki,Tomas Bohr +7 more
TL;DR: A review of low-Reynolds-number transport processes in plants can be found in this article, where the current understanding of the mechanism and quantitative description of these flows are discussed, connecting theory and experiments as far as possible.
Journal ArticleDOI
Osmotic tolerance limits and properties of murine spermatozoa.
Cara E. Willoughby,Cara E. Willoughby,Peter Mazur,A.T. Peter,John K. Critser,John K. Critser +5 more
TL;DR: The data indicate that motility is substantially more sensitive to osmotic stress than either mitochondrial viability or membrane integrity and that mouse spermatozoa should be maintained within 76-124% of their isosmotic volume during cryopreservation in order to maintain > 80% of pretreatment motility.
Journal ArticleDOI
Permeability studies with cellulosic membranes.
TL;DR: The true diffusive permeabilities of commercial, modified commercial, and laboratory cast regenerated cellulose membranes were measured with a batch dialyzer using 15 solutes and the results suggest further work for higher permeability cellulosic hemodialysis membranes.
References
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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