Results 161 to 170 of about 386,915 (211)

Cellular Aspects of Membrane Permeability

Protoplasma, 1967
Biology is now in a critical state of transition: we realize at last that our methodological approaches as well as our panoply of concept are outdated and cannot be of much help as far as explanations of biological functions is concerned. This is specially true in the field, of membrane permeability where it is clear that we do not learn very much any ...
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Alterations in Outer Membrane Permeability

Annual Review of Microbiology, 1984
INTRODucnON ... ......... .. . .. ........ ... ........ . .. .. ... .. ... . ......... .. ........ . 238 Structure oj the Cell Envelope 238 Uptake Arross the Outer Membrane 239 Intrinsic,Dejects in Outer Membrane Permeability in So.me Bacteria . .... ..... .. .... .. 241 MUTATIONAL ALTERATIONS IN OUTER MEMBRANE PERMEABILITy .........
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Measurement of membrane permeability and the mitochondrial permeability transition

2020
The mitochondrial permeability transition (PT) is an increase in the inner membrane permeability caused by the opening of a Ca2+-activated high-conductance channel, the so-called PT pore (PTP) or mitochondrial megachannel (MMC). Recent data indicate that F-ATP synthase contributes substantially to the generation of the PTP, yet this hypothesis is the ...
Carraro M., Bernardi P.
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Permeability of the round window membrane

Archives of oto-rhino-laryngology, 1984
Cefmetazole sodium, a cephamycin antibiotic, was shown to pass through the round window membrane into the inner ear of the guinea pig. The concentration of the drug in the inner ear fluid indicated that a larger amount of the drug reached the inner ear through the round window membrane than when administered intraperitoneally.
T, Okuno, Y, Nomura
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Permeability studies with cellulosic membranes

Journal of Biomedical Materials Research, 1971
AbstractThe true diffusive permeabilities of commercial, modified commercial, and laboratory cast regenerated cellulose membranes were measured with a batch dialyzer using 15 solutes (sodium chloride, nine radioactively labelled organic solutes, and five low molecular weight proteins) ranging in molecular weight from 58 to 68,000.
C K, Colton, K A, Smith, E W, Merrill, P C, Farrell   +3 more
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The engineering of membrane-permeable peptides

Analytical Biochemistry, 2005
Reversible lipid attachment was investigated as a means to deliver small peptides into cells. Two labile straight chain alkyl motifs were developed: a cysteine dodecane disulfide (Cdd) building block and a tyrosine- or serine-myristate ester. Both moieties are cleaved on cell internalization and are compatible with Fmoc solid phase peptide synthesis. A
Christina N, Carrigan, Barbara, Imperiali   +1 more
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Permeability of the Inner Ear Membranes

Acta Oto-Laryngologica, 1969
Soluted substances can penetrate through epithelial layers either by free diffusion through the intercellular spaces or by transcellular transport. By injection of th. as a tracer into peri- and endolymph we found a typical transcellular transport of the tracer through Reissner's membrane in micropinocytosis vesicles.
C V, Ilberg, K H, Vosteen
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Membrane permeability

Current Opinion in Cell Biology, 1996
L Y, Jan, Y N, Jan
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Permeability of Membranes

Nature, 1968
Cellular Aspects of Membrane Permeability By E. Schoffeniels. (International Series of Monographs in Pure and Applied Biology. Division: Modern Trends in Physiological Sciences, Vol. 28.) Pp. xiii + 266. (Pergamon: Oxford, London and New York, 1967.) 100s.; $15.
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Permeability coefficient of microcapsule membrane

Journal of Microencapsulation, 1984
The method of evaluation of the permeability coefficient of microcapsule membrane from experimental data measured with a variable shearing interferometer is theoretically investigated. The permeability coefficients of polystyrene and nylon 6,10 microcapsules are determined by the evaluated method from the optically measured diffusion data for the non ...
K B, Lee, T, Kondo
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