Buckling, bundling, and pattern formation: From semi-flexible polymers to assemblies of interacting filaments
Buckling, bundling, and pattern formation: From semi-flexible polymers to assemblies of interacting filaments
复制标题
屈曲、捆绑和图案形成：从半柔性聚合物到相互作用的细丝组件
DOI：
--
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
R. Lipowsky
中科院分区：
文献类型：
--
作者：
J. Kierfeld;P. Gutjahr;T. Kühne;P. Kraikivski;R. Lipowsky
半柔性聚合物和薄膜在生物和化学物理中起着重要的作用。单层板具有一定的抗弯刚度，这决定了其持续长度和屈曲不稳定性。成束层之间的相互吸引作用或与粘性基底的相互吸引作用导致平衡相变，如成束和吸附。最后，在由多个相互作用的分子组成的活性系统的水平上，我们讨论了非平衡系统中的合作有序效应，如运动分析。在运动性测定中，Lamen被锚定到平面二维基底的马达蛋白吸附和驱动。与马达蛋白的相互作用导致lamen ts的有序化增强。包含吸附马达模式的运动测定，即，具有增加的宽度的低马达密度的条带可以用于根据它们的长度来分选薄片T。
Semiexible polymers and lamen ts play an important role in biological and chemical physics. Single lamen ts are characterized by a certain bending rigidity which governs their persistence length and buckling instabilities. Attractive mutual interactions of lamen ts in bundles or the attractive interaction with an adhesive substrate lead to equilibrium phase transitions, such as bundling and adsorption. Finally, on the level of active systems consisting of many interacting lamen ts, we discuss cooperative ordering eects in non-equilibrium systems such as motility assays. In motility assays lamen ts are adsorbed and driven by motor proteins, which are anchored to a planar two-dimensional substrate. The interaction with motor proteins leads to enhanced ordering of lamen ts. Motility assays containing patterns of adsorbed motors, i.e., stripes of low motor density with increasing widths can be used to sort lamen ts according to their lengths.