STRUCTURE OF THE SUBGEL (L(C')) AND GEL (L(BETA')) PHASES OF ORIENTED DIPALMITOYLPHOSPHATIDYLCHOLINE MULTIBILAYERS

被引：37
|
作者：
KATSARAS, J [1 ]
机构：
[1] AECL RES,CHALK RIVER LABS,CHALK RIVER,ON K0J 1J0,CANADA
来源：
JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 12期
关键词：
D O I：
10.1021/j100012a039
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：
An X-ray study of highly oriented films of 1,2-dipalmitoyl-sn-glycero-3-phosphatidylcholine (DPPC) in the L(c') phase is presented. The data describe the physical characteristics of the hydrophilic phosphorylcholine headgroups and hydrocarbon chains in the L(c') phase and show that the L(c') --> L(beta F) phase transition is characterized by a change in hydrocarbon chain packing, tilt angle and direction. Also, 1D electron density profiles indicate that L(c') and dry L(beta F) bilayers differ significantly in the bilayer interface region from those in the L(beta 1) (molecular tilt toward nearest neighbors) and hydrated L(beta F) (molecular tilt between nearest neighbors) phases.
引用
收藏
页码：4141 / 4147
页数：7
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