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Spontaneous Vesicle Formation in Aqueous Mixtures of Single-Tailed Surfactants
Eric W. Kaler, A. Kamalakara Murthy, Beatriz E. Rodriguez and Joseph A. N. Zasadzinski
New Series, Vol. 245, No. 4924 (Sep. 22, 1989), pp. 1371-1374
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1704271
Page Count: 4
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Spontaneous, single-walled, equilibrium vesicles can be prepared from aqueous mixtures of simple, commercially available, single-tailed cationic and anionic surfactants. Vesicle size, surface charge, or permeability can be readily adjusted by varying the ratio of anionic to cationic surfactant. Vesicle formation apparently results from the production of anion-cation surfactant pairs that then act as double-tailed zwitter-ionic surfactants. These vesicles are quite stable in comparison to conventional vesicles prepared by mechanical disruption of insoluble liquid crystalline dispersions.
Science © 1989 American Association for the Advancement of Science