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Literature DB >> 14080823

THE FRICTIONAL COEFFICIENTS OF THE FLOWS OF NON-ELECTROLYTES THROUGH ARTIFICIAL MEMBRANES.

Abstract

The phenomenological permeation coefficients were determined for two artificial cellulose membranes of known thickness and water content. Transport of non-electrolytes was studied with tagged water, urea, glucose, and sucrose. The effect of the unstirred layers on the experimental determination of the coefficients is discussed. Frictional coefficients between membrane matrix and solutes, and between solvent and solutes in the membrane are calculated. It was shown that the geometrical tortuosity does not correspond to a physical tortuosity.

Entities: Chemical

Keywords: BIOPHYSICS; EXPERIMENTAL LAB STUDY; GLUCOSE; PERMEABILITY; SUCROSE; UREA; WATER

Mesh：

Substances：

Year: 1963 PMID： 14080823 PMCID： PMC2195340 DOI： 10.1085/jgp.47.2.403

Source DB: PubMed Journal: J Gen Physiol ISSN： 0022-1295 Impact factor: 4.086

3 in total

1. A physical interpretation of the phenomenological coefficients of membrane permeability.

Authors: O KEDEM; A KATCHALSKY
Journal: J Gen Physiol Date: 1961-09 Impact factor: 4.086

2. Filtration, diffusion, and molecular sieving through porous cellulose membranes.

Authors: E M RENKIN
Journal: J Gen Physiol Date: 1954-11-20 Impact factor: 4.086

3. Water flow through frog gastric mucosa.

Authors: R P DURBIN; H FRANK; A K SOLOMON
Journal: J Gen Physiol Date: 1956-03-20 Impact factor: 4.086

3 in total

44 in total

4. A numerical study of the hydrodynamic stable concentration boundary layers in a membrane system under microgravitational conditions.

Authors: Andrzej Slezak; Arkadiusz Bryll; Sławomir Grzegorczyn
Journal: J Biol Phys Date: 2007-05-08 Impact factor: 1.365

8. Water permeability of plant cuticles : Dependence of permeability coefficients of cuticular transpiration on vapor pressure saturation deficit.

Authors: J Schönherr; H W Schmidt
Journal: Planta Date: 1979-01 Impact factor: 4.116

9. Water permeability of isolated cuticular membranes: The effect of pH and cations on diffusion, hydrodynamic permeability and size of polar pores in the cutin matrix.

Authors: J Schönherr
Journal: Planta Date: 1976-01 Impact factor: 4.116

10. Cellular constraints to diffusion. The effect of antidiuretic hormone on water flows in isolated mammalian collecting tubules.

Authors: J A Schafer; T E Andreoli
Journal: J Clin Invest Date: 1972-05 Impact factor: 14.808

THE FRICTIONAL COEFFICIENTS OF THE FLOWS OF NON-ELECTROLYTES THROUGH ARTIFICIAL MEMBRANES.

1. A physical interpretation of the phenomenological coefficients of membrane permeability.

2. Filtration, diffusion, and molecular sieving through porous cellulose membranes.

3. Water flow through frog gastric mucosa.

1. Concentration-dependence of nonelectrolyte permeability of toad bladder.

2. Interstitial adenosine: the measurement, the interpretation.

3. Tracer diffusion and unidirectional fluxes.

4. A numerical study of the hydrodynamic stable concentration boundary layers in a membrane system under microgravitational conditions.

5. Calcium diffusion in transient and steady states in muscle.

6. Ionic flows through a single homogeneous membrane : A thermodynamic analysis.

7. The role of water diffusion in the action of vasopressin.

8. Water permeability of plant cuticles : Dependence of permeability coefficients of cuticular transpiration on vapor pressure saturation deficit.

9. Water permeability of isolated cuticular membranes: The effect of pH and cations on diffusion, hydrodynamic permeability and size of polar pores in the cutin matrix.

10. Cellular constraints to diffusion. The effect of antidiuretic hormone on water flows in isolated mammalian collecting tubules.