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Self-assembly in surfactant, polyelectrolytes and polyampholytes

We are interested in investigating the basic mechanism of self-assembly in surfactant solutions. We have studied the formation of micelles by simple models of non-ionic surfactants using a lattice model. We have developed computational methodologies for accurate determination of critical micelle concentrations (cmc's) for systems that aggregate at low surfactant loadings. Our continuing work in this area focuses on the behavior of mixed surfactant systems and ionic amphiphiles. An additional area of interest is conformational transitions and self-assembly of polyelectrolyte and polyampholyte chains. For example, the picture below shows snapshots of typical micelles in aqueous solution for S6S, S9S, and SDS as a function of total surfactant concentration [D. N. LeBard et al., unpublished (2011).]