Confined diffusion in a sponge phase

Amir Maldonado, Claude Nicot, Marcel Waks, Raymond Ober, Wladimir Urbach, Dominique Langevin

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Three water-soluble probes with different hydrodynamic radii have been studied by self-diffusion experiments in the sponge (L3) phases of a zwitterionic surfactant system. In all cases, the self-diffusion coefficient varies linearly with the bilayer volume fraction. The available theories for rigid porous media cannot completely explain our results. Deviations from theoretical predictions appear for bilayer volume fractions greater than 0.2. The L3phase cannot be therefore pictured as a disordered network of rigid surfaces at least for transport behavior.
Original languageAmerican English
Pages (from-to)2893-2897
Number of pages5
JournalJournal of Physical Chemistry B
StatePublished - 4 Mar 2004
Externally publishedYes


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