Abstract

Abstract The effects of Triton X-100 on small unilamellar lecithin vesicles has been studied by means of quasielastic light scattering, NMR, sedimentation and stopped flow techniques. At low surfactant/lipid ratios an increase in membrane permeability and a moderate growth of the vesicle is observed. Higher Triton concentrations induce the formation of large structures with a radius o up to 800 A. Small surfactant-lipid mixed micelles are cbtained by further increase of the Triton concentration. The molar ratios at which the formation of the different types of aggregates takes place was pound to be highly dependent on the total concentration of detergent and lipid.

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