Fluctuations and phase behavior of fluid membrane vesicles

D. C. Morse, S. T. Milner

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


We consider the behavior of a dilute phase of bilayer surfactant vesicles. We show that the free energy of a single vesicle increases logarithmically with vesicle size, due to a previously unappreciated finite-size contribution to the fluctuation free energy, in contrast to previous studies, which assumed a logarithmic decrease of the free energy due to thermal softening of the bending rigidity. This result leads to qualitatively different predictions for the behavior of an equilibrium vesicle phase.

Original languageEnglish (US)
Pages (from-to)565-570
Number of pages6
Issue number8
StatePublished - Jun 10 1994


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