Rod-like cholesterol micelles in aqueous solution studied using polarized and depolarized dynamic light scattering.
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.
Castanho
M A
MA
Centro de Quimica Fisica Molecular, Lisboa, Portugal.
Brown
W
W
Prieto
M J
MJ
D055592:Biophysical Phenomena; D001703:Biophysics; D002784:Cholesterol / Q000737:chemistry*; D008027:Light; D008823:Micelles; D010316:Particle Size; D012542:Scattering, Radiation; D012996:Solutions; D014867:Water
D008823:Micelles; D012996:Solutions; D014867:Water; D002784:Cholesterol