SHAPES OF FINITE TWO-DIMENSIONAL LIPID DOMAINS
SHAPES OF FINITE TWO-DIMENSIONAL LIPID DOMAINS
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DOI：
10.1021/j100326a053
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发表时间：
1988-07-28
影响因子：
--
通讯作者：
MOY, VT
中科院分区：
文献类型：
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作者：
MCCONNELL, HM;MOY, VT
背景理论和模型假设在此，我们简要地回顾了空气-水界面上磷脂的有限二维晶体畴形状的一个简单模型。再次假设纯固相和纯流体相是不可压缩的，因此，当单层被压缩以将流体转化为固体时，在这个中间区域，槽的面积和存在的脂质数量共同确定了脂质为固体的面积。实验观察到，对于许多脂类，固体被分成许多小的、有限大小的区域，周围是流体。由于静电力的作用，这些固体畴相互排斥。在最简单的模型中，单个固体区域的形状是由分子极静电力Fel和流体与固体区域边界的线张力X的相互作用决定的。
Background Theory and Model Assumptions Here we review briefly a simple model for the shapes of finite two-dimensional crystal domains of phospholipid at the air-water interface. Again it is assumed that the pure solid and pure fluid phases are incompressible, so that when the monolayer is com-pressed to convert fluid to solid, in this intermediate region, the area of the trough and the quantity of lipid present together define the area of the lipid that is solid. It is observed experimentally that, for a number of lipids, the solid is divided into a large number of small, finite-sizeddomains, surrounded by fluid. Thesolid domains repel one another due to electrostatic forces. 2 345" 10 In the simplest model the shape of an individual solid domain is determined by the interplay of the moleculardipolar electrostatic forces Fel and the line tension X of the boundary between fluid and solid regions.