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首页> 外文期刊>The European physical journal, E. Soft matter >Composite contact of binary lipid membranes
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Composite contact of binary lipid membranes

机译:二元脂质膜的复合接触

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摘要

Upon adhesion, binary lipid membranes may retain their structural identity but they may also undergo partial fusion promoted by microscopic phase separation of the components. In membranes composed of cylindrical and inverted conical lipids, a partially fused contact zone may consist of inverted micelles sandwiched between two monolayers. We theoretically analyze the elastic properties of such a composite contact zone. We calculate its bending moduli and we show that they may be considerably larger than the moduli of a phase-nonseparated double bilayer. The main mechanism responsible for the enhanced rigidity of the composite contact structure is the increased separation of the two monolayers caused by the presence of water in the inverted micelles. Graphical abstract: [Figure not available: see fulltext.]
机译:粘附后,二元脂质膜可保留其结构同一性,但它们也可能会受到组分的微观相分离促进的部分融合。在由圆柱形和反向圆锥形脂质组成的膜中,部分融合的接触区可能由夹在两个单层之间的反向胶束组成。我们从理论上分析了这种复合接触区的弹性。我们计算了它的弯曲模量,结果表明它们可能比不分离相的双层膜的模量大得多。导致复合材料接触结构刚度提高的主要机理是,由于反胶束中存在水,导致两个单分子膜的分离增加。图形摘要:[该图不可用:请参见全文。]

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