NMR relaxation study of collective motions and viscoelastic properties in biomembranes

被引：20

作者：

Althoff, G ^{[1
]}

Heaton, NJ ^{[1
]}

Grobner, G ^{[1
]}

Prosser, RS ^{[1
]}

Kothe, G ^{[1
]}

机构：

[1] UNIV STUTTGART,DEPT PHYS CHEM,D-70569 STUTTGART,GERMANY

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1996年 / 115卷

关键词：

biomembranes; collective motions; NMR relaxation measurements; viscoelastic properties;

D O I：

10.1016/0927-7757(96)03612-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Results of transverse P-31 and H-2 relaxation measurements in dimyristoyl-phosphatidylcholine membranes employing the Carr-Purcell-Meiboom-Gill pulse sequence are reported. The observed pulse frequency dependence indicates the existence of slow motions, which can be interpreted in terms of order director fluctuations in the liquid crystalline phase. The analysis yields the viscoelastic parameters of the membrane non-invasively. The effect of various membrane constituents such as proteins and sterols on the viscoelastic behaviour is examined.

引用

页码：31 / 37

页数：7

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