Polymer translocation in the presence of excluded volume and explicit hydrodynamic interactions
Polymer translocation in the presence of excluded volume and explicit hydrodynamic interactions
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DOI：
10.1016/j.physleta.2006.06.042
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发表时间：
2006-11-27
影响因子：
2.6
通讯作者：
Slater, Gary W.
中科院分区：
文献类型：
--
作者：
Guillouzic, Steve;Slater, Gary W.
本文报道了聚合物迁移的分子动力学模拟。在移位过程中，聚合物不受外力作用，其动力学主要由聚合物-孔道相互作用主导。研究发现，流体动力相互作用在膜两侧聚合物的松弛过程中起着重要作用，但对移位过程本身的影响可以忽略不计。此外，松弛时间和迁移时间的标度律表明，在没有外力的情况下，长迁移聚合物可能遵循准平衡反常扩散过程。(C)2006爱思唯尔B.V.保留所有权利。
Molecular Dynamics simulations of polymer translocation are hereby reported. No external force was applied to the polymer during translocation, and the dynamics was dominated by polymer-pore interactions. It was found that hydrodynamic interactions play an important role in the relaxation of the polymer on each side of the membrane but have a negligible impact on the translocation process itself. Also, the scaling laws obtained for the relaxation and translocation times indicate that long translocating polymers may be considered to be following a quasi-equilibrium anomalous diffusion process in the absence of external forces. (c) 2006 Elsevier B.V. All rights reserved.