Equilibrium Penetration of Monolayers VI: Cholesterol-Cetrimonium Bromide System
Copyright policy )Equilibrium Penetration of Monolayers VI: Cholesterol-Cetrimonium Bromide System
Equilibrium surface pressure-area isotherms for the penetration of cholesterol monolayers by the surfactant cetrimonium bromide are presented. From these isotherms, the saturation adsorptions of surfactant for various surface concentrations of cholesterol were calculated. Plots of adsorption against the inverse of the area per cholesterol molecule revealed two linear revealed two linear regions, corresponding to penetration at high and low monolayer areas. At high monolayer areas, surfactant adsorption into accessible areas of the surface was similar to adsorption at a monolayer-free surface. In this region, packing of cholesterol and surfactant molecules on the surface lowered the effective cross-sectional area of the cholesterol molecule. However, at low monolayer areas, adsorption was determined by the size of the surfactant ion and the effective area of the cholesterol molecule was equal to the collapse area of a pure cholesterol monolayer.
- University of Queensland Australia
- University of Queensland Australia
- University of Queensland Australia
equilibrium surface pressure‐area isotherms obtained, Chemical Phenomena, 3003 Pharmaceutical Science, equilibrium surface pressure—area isotherms obtained, Permeability, monolayers penetrated by cetrimonium bromide, cholesterol—penetration by cetrimonium bromide, Monolayers, penetration of cholesterol monolayers, 3002 Drug Discovery, Membranes, Artificial, 1600 Chemistry, Quaternary Ammonium Compounds, Chemistry, 3004 Pharmacology, Cholesterol, Cetrimonium bromide—penetration of cholesterol monolayers, Surfactants—cetrimonium bromide, 1313 Molecular Medicine, Cetrimonium Compounds, Thermodynamics, Adsorption, Cholesterol monolayers—penetration by cetrimonium bromide, Sterols—cholesterol, 1605 Policy and Administration
equilibrium surface pressure‐area isotherms obtained, Chemical Phenomena, 3003 Pharmaceutical Science, equilibrium surface pressure—area isotherms obtained, Permeability, monolayers penetrated by cetrimonium bromide, cholesterol—penetration by cetrimonium bromide, Monolayers, penetration of cholesterol monolayers, 3002 Drug Discovery, Membranes, Artificial, 1600 Chemistry, Quaternary Ammonium Compounds, Chemistry, 3004 Pharmacology, Cholesterol, Cetrimonium bromide—penetration of cholesterol monolayers, Surfactants—cetrimonium bromide, 1313 Molecular Medicine, Cetrimonium Compounds, Thermodynamics, Adsorption, Cholesterol monolayers—penetration by cetrimonium bromide, Sterols—cholesterol, 1605 Policy and Administration
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