title: Nucleation in premicellar aggregation.
abstract: The role of a nucleating agent (cholesterol) in the premicellar aggregation of sodium lauryl sulfate (SLS), cetyltrimethylammonium bromide, Triton X-405 and Brij 35 has been investigated. The I(1)/I(3) ratios of pyrene in the solutions indicate that SLS is strongly nucleated by cholesterol, but the other detergents appear to be so to a lesser extent. However, quenching studies show that premicellar Brij 35 also forms nucleated aggregates that protect the probe from the quencher. Energy transfer data with Triton X-405 suggest that such aggregates have a more open structure than self-assembling ones and are more accessible to water.
authors.affiliation: Department of Chemistry, University of Idaho, Moscow, ID 83843, U.S.A.
authors.forename: C P
authors.initials: CP
authors.lastname: Loran
authors.forename: R
authors.initials: R
authors.lastname: Von Wandruszka