Theory of spontaneous vesicle formation in surfactant mixtures

S. A. Safran, P. Pincus, David Andelman

Research output: Contribution to journalArticlepeer-review


The curvature elastic energy of bilayer vesicles formed by a mixture of two surfactants, which individually form either micelles or lamellar bilayer phases is described theoretically. In the limit of large bending elastic modulus K being much greater than the temperature T, the free energy is minimized by vesicles with different concentrations of the two surfactants in each monolayer of the bilayer. Vesides are more stable than lamellar structures only when interactions or complexing of the two surfactants is taken into account.

Original languageEnglish
Pages (from-to)354-356
Number of pages3
Issue number4953
StatePublished - 1990


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