Fold-speed control in collapsing mixed phospholipid monolayers

被引：25

作者：

Zhang, Y ^{[1
]}

Fischer, TM ^{[1
]}

机构：

[1] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 08期

关键词：

D O I：

10.1021/jp047364o

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：

Mixed monolayers of dipalmitoylphosphatidylcholine (DPPC) and dipalmitoyl-phosphatidylserine are compressed beyond their collapse pressure. Primary and secondary folds that grow perpendicular to the compression direction are observed using Brewster angle microscopy. The secondary fold velocity is measured with a fast charge-coupled device camera. We observe a reduction in secondary fold speed when increasing the mole fraction of the softer DPPC component in the monolayer. The fracture kinetics follows theoretical predictions for the fold coarsening dynamics of uniaxially stressed three-dimensional systems.

引用

页码：3442 / 3445

页数：4

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