title: Rod-like cholesterol micelles in aqueous solution studied using polarized and depolarized dynamic light scattering.
abstract: Micelles of cholesterol in aqueous solution have been investigated using polarized and depolarized dynamic light scattering. They are shown to be highly extended and characterized by a narrow size distribution. It is shown that a rod-like model is applicable with length, L = 580 nm. Determination of the rotational diffusion coefficient by analysis of the autocorrelation function gave a value of theta = 150 s-1, which is close to the calculated value for the rod with this dimension. Depolarized dynamic light scattering measurements as a function of angle gave a value of 110 s-1.
authors: Centro de Quimica Fisica Molecular, Lisboa, Portugal.
authors: M A
authors: MA
authors: Castanho
authors: W
authors: W
authors: Brown
authors: M J
authors: MJ
authors: Prieto
mesh_terms: D055592:Biophysical Phenomena; D001703:Biophysics; D002784:Cholesterol / Q000737:chemistry*; D008027:Light; D008823:Micelles; D010316:Particle Size; D012542:Scattering, Radiation; D012996:Solutions; D014867:Water
chemical_list: D008823:Micelles; D012996:Solutions; D014867:Water; D002784:Cholesterol