Unbundling and desorption of semiflexible polymers
Unbundling and desorption of semiflexible polymers
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DOI：
10.1209/epl/i2003-00139-0
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发表时间：
2003-04-01
期刊：
影响因子：
--
通讯作者：
Lipowsky, R
中科院分区：
文献类型：
--
作者：
Kierfeld, J;Lipowsky, R
给出了两种半柔性聚合物的解束跃迁和这种聚合物在平面上的解吸跃迁的完整分类。相互作用势既取决于聚合物/聚合物（或聚合物/表面）的分离，也取决于聚合物的取向。利用解析传递矩阵方法和标度参数，得到了任意空间维度d=1+d（垂直于）上所有类型相互作用势的跃迁阶数和相应的临界指数。我们的结果适用于具有大持续长度的生物聚合物或聚电解质，如肌动蛋白。叹气、微管或DNA。
A complete classification for unbundling transitions of two semiflexible polymers and for desorption transitions of such polymers at planar surfaces is presented. The interaction potentials can depend both on the polymer/polymer (or polymer/surface) separation and on the orientation of the polymers. Using analytical transfer matrix methods and scaling arguments, the order of the transitions and the corresponding critical exponents are obtained for all types of interaction potentials in arbitrary spatial dimension d=1+d(perpendicular to). Our results are applicable to biopolymers or polyelectrolytes with large persistence lengths such as actin. laments, microtubules, or DNA.