ROD-LIKE CHOLESTEROL MICELLES IN AQUEOUS-SOLUTION STUDIED USING POLARIZED AND DEPOLARIZED DYNAMIC LIGHT-SCATTERING

被引：36
作者：
CASTANHO, MARB
BROWN, W
PRIETO, MJE
机构：
[1] UNIV UPPSALA,INST PHYS CHEM,BOX 532,S-75121 UPPSALA,SWEDEN
[2] CTR QUIM FIS MOLEC,P-1096 LISBON,PORTUGAL
来源：
BIOPHYSICAL JOURNAL | 1992年 / 63卷 / 06期
关键词：
D O I：
10.1016/S0006-3495(92)81733-2
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
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.
引用
收藏
页码：1455 / 1461
页数：7
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