Journal ArticleDOI
Thermodynamic analysis of the permeability of biological membranes to non-electrolytes
Ora Kedem,Aharon Katchalsky +1 more
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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
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Book ChapterDOI
Symplast as a Functional Unit in Plant Growth
Kiyoshi Katou,Hisashi Okamoto +1 more
TL;DR: This chapter discusses the physiological anatomy of the cowpea hypocotyl, based mostly on the results obtained through electrophysiological methods, and the regulatory mechanism of the elongation growth of the hypocrotyl is also examined.
Journal ArticleDOI
Freezing and post-thaw apoptotic behaviour of cells in the presence of palmitoyl nanogold particles
TL;DR: The post-thaw results from HeLa cells show that the NPs increased the measured post-freeze apoptotic response when cooled at 1 °C min−1, suggesting a possible therapeutic use of NPs in cryodestructive procedures.
Journal ArticleDOI
The permeability of lipid membranes to non-electrolytes
J. Lelievre,Gillian T. Rich +1 more
TL;DR: A comparison of different solutes shows that liposome permeabilty depends on solute size and lipid solubility in a manner similar to that observed for non-electrolyte permeation through synthetic polymers and some “non-porous” cell membranes.
Book ChapterDOI
Transport Across Multimembrane Systems
Hans H. Ussing,A. Leaf +1 more
TL;DR: This volume will be mainly concerned with transport through epithelia, the class of multimembrane systems in which the concerted function of two or more membranes provides the whole assembly with transport properties not encountered in single membranes.
Journal ArticleDOI
An experimental study of the complete-mixing model for radial flow hollow fiber reverse osmosis systems
TL;DR: In this paper, it was shown experimentally that the linear relationship between 1/R and Sm/Fp exists at all levels of concentration (from 1000 to 35,000 ppm), pressure (from 150 to 400 psi), and feed flow rate (from 75 cm3/s to 400 cm3 /s).
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
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