Quasi-unidirectional shrinkage of gels with well-oriented lipid bilayers upon uniaxial stretching

PDGI-PAAm gels with well oriented lipid bilayers show a quasi-unidirectional shrinkage upon uniaxial stretching along the bilayers. They shrink largely parallel to the bilayer but slightly perpendicular to it in order not to increase the bilayer area and its interfacial energy. Such an anisotropic deformation can be well-modelled based on classical theories for gel networks and lipid layers.

具有良好取向脂质双层的PDGI - PAAm凝胶在沿双层单轴拉伸时呈现出准单向收缩。它们在很大程度上平行于双层收缩，但垂直于双层的收缩较小，这样是为了不增加双层面积及其界面能。这种各向异性变形可以基于凝胶网络和脂质层的经典理论进行很好的建模。