Results 251 to 260 of about 2,952,338 (294)

Fine-Tuned Intrinsically Ultramicroporous Polymers Redefine the Permeability/Selectivity Upper Bounds of Membrane-Based Air and Hydrogen Separations.

ACS Macro Letters, 2015
Intrinsically ultramicroporous (
Raja Swaidan, B. Ghanem, I. Pinnau
semanticscholar   +1 more source

The makings of permeable membranes

Science, 2018
Membranes A challenge in making membranes is finding ways to control the pore structure during the fabrication process or through postfabrication treatment. The deposition of a zeolitic imidazolate framework material called ZIF-8 onto an alumina support gives a dense, impermeable material. However, when Ma et al.
openaire   +2 more sources

Permeability of the Peroxisomal Membrane

1987
Purified peroxisomes are permeable to sucrose and to a variety of other small molecules, including the cofactors NAD, CoA, ATP and carnitine. The permeability of the organelles is not mediated by the presence of a number of specific translocases, since cofactor diffusion into isolated peroxisomes was rapid even at low temperature, not saturable and not
P. P. Van Veldhoven, Guy P. Mannaerts
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Permeability of Keratin Membranes

Nature, 1944
BARRER1 has suggested that the diffusion of vapours through media in which sorption and swelling occur are governed by a generalized form of Frick's Law, in which the diffusion constant is a function of the vapour concentration in the specimen.
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Modulation of Membrane Permeability

1999
A majority of mammalian cells, unlike bacterial cells, are anchorage-dependent (Young 1993), a fact that has encouraged the development of immobilization systems. One such, the adsorption or attachment technique (van Wezel 1967), whereby cells are adhered to the surface of microcarriers, suffers several drawbacks.
Mattheus F. A. Goosen, Augustine O. Okhamafe   +1 more
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Membrane Permeability and Voltage

1980
The previous chapters have discussed the various methods by which substances cross cell membranes: (1) diffusion through the lipid membrane itself, (2) diffusion through aqueous pores in the membrane, (3) facilitated transport with the aid of carriers, and (4) active transport with the use of metabolic energy.
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Leaf Senescence: Correlated with Increased Levels of Membrane Permeability and Lipid Peroxidation, and Decreased Levels of Superoxide Dismutase and Catalase

, 1981
R. Dhindsa, P. Plumb-Dhindsa, T. Thorpe
semanticscholar   +1 more source

PERMEABILITY OF MEMBRANE JUNCTIONS* [PDF]

Annals of the New York Academy of Sciences, 1966
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The permeability of nuclear membranes

Molecular Aspects of Medicine, 1988
Hugo Fasold, Hans-Peter Richter, Michael Bachmann, Detlef Prochnow, Norbert Riedel   +4 more
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Membrane permeability

Current Opinion in Cell Biology, 1992
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