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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Journal ArticleDOI
Optimal design of reverse osmosis‐based water treatment systems
TL;DR: In this article, a superstructure optimization method is proposed to solve the problem, where the superstructure for a reverse osmosis (RO)-based water treatment system is structurally enhanced with additional features.
Journal ArticleDOI
The salting-in hypothesis of post-hypertonic lysis
TL;DR: A simplified model is proposed in which the intracellular milieu is composed of both KCl and a proteinaceous component that normally forms many salt bridges between amino acids with fixed charges, and the proteins are "salted in" to solution (salt bridges are replaced with ionic interactions) thereby decreasing the intrACEllular cation concentration.
Book ChapterDOI
Membranes by the Numbers
TL;DR: In this chapter, the quantitative parameters that characterize the mechanical, electrical, and transport properties of membranes are reviewed and a number of corresponding order-of-magnitude estimates are carried out that help us understand the values of those parameters.
Journal ArticleDOI
Numerical model-based analysis of energy-efficient reverse osmosis (EERO) process: Performance simulation and optimization
TL;DR: In this paper, the authors conducted a feasibility study of the energy-efficient reverse osmosis (EERO) process, which is a multi-stage membrane system that integrates single-stage reverse Osmosis and a countercurrent membrane cascade with recycle (CMCR), and validated the model using performance data obtained from commercial RO projection software.
Journal ArticleDOI
Studies on polymeric nanofiltration-based water softening and the effect of anion properties on the softening process
TL;DR: In this paper, the authors investigated the water softening capability of a polymeric NF-based membrane in a cross-flow mode using a combined solution-diffusion/film theory (SDFT) model reduced to Gupta's model (dilute solutions).
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