Weak acid permeability through lipid bilayer membranes. Role of chemical reactions in the unstirred layer.
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چکیده
منابع مشابه
Weak acid permeability through lipid bilayer membranes. Role of chemical reactions in the unstirred layer
The premeabilities of planar lipid bilayer (egg phosphatidylcholine-decane) membranes to butyric and formic acids were measured by tracer and pH electrode techniques. The purposes of the study were (a) to establish criteria for the applicability of each method and (b) to resolve a discrepancy between previously published permeabilities determined using the different techniques. Tracer fluxes of...
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Diffusion of (14)C-labeled CO(2) was measured through lipid bilayer membranes composed of egg lecithin and cholesterol (1:1 mol ratio) dissolved in n-decane. The results indicate that CO(2), but not HCO(3-), crosses the membrane and that different steps in the transport process are rate limiting under different conditions. In one series of experiments we studied one-way fluxes between identical...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1982
ISSN: 0022-1295,1540-7748
DOI: 10.1085/jgp.79.5.917