Dynamic shear modulus of a semiflexible polymer network
Dynamic shear modulus of a semiflexible polymer network
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DOI：
10.1103/physreve.58.r1241
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发表时间：
1998-08-01
影响因子：
2.4
通讯作者：
MacKintosh, FC
中科院分区：
文献类型：
--
作者：
Gittes, F;MacKintosh, FC
我们构建了一个模型的动态剪切模量G（Ω）的纠缠或交联的网络的半柔性聚合物，可以占高频标度行为，G（Ω）类似于Ω（3/4），最近已经观察到的生物聚合物F-肌动蛋白的解决方案。我们认为，这种行为不应该是唯一的F-肌动蛋白，而是应该是一个明确的特点，一般的半柔性聚合物。我们还报告分子动力学模拟，支持单丝响应，这是我们的网络剪切模量模型的基础。
We construct a model for the dynamic shear modulus G(omega) of entangled or crosslinked networks of semiflexible polymer that can account for the high-frequency scaling behavior, G(omega) similar to omega(3/4), that has recently been observed in solutions of the biopolymer F-actin. As we argue, this behavior should not be unique to F-actin, but rather should be a clear characteristic of semiflexible polymers in,general. We also report molecular dynamics simulations that support the single filament response that is the basis of our model for the network shear modulus.