Stretching instability of intrinsically curved semiflexible biopolymers: A lattice model approach

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題名:	Stretching instability of intrinsically curved semiflexible biopolymers: A lattice model approach
作者:	Zhou, Zi-Cong;Lin, Fang-Ting;Chen, Bo-Han
關鍵詞:	semiflexible biopolymer;intrinsic curvature;mechanical property;phase transition
日期:	2014-08-10
上傳時間:	2016-01-06 11:04:36 (UTC+8)
摘要:	We apply Monte Carlo simulation method to lattice systems to study the effect of an intrinsic curvature on the mechanical property of a semiflexible biopolymer. We find that when the intrinsic curvature is sufficient large, the extension of a semiflexible biopolymer can undergo a first-order transition at finite temperature. The critical force increases with increasing intrinsic curvature. But the relationship between the critical force and the bending rigidity is structure-dependent. In triangle lattice system, when the intrinsic curvature is smaller than a critical value, the critical force increases with the increasing bending rigidity first, and then decreases with the increasing bending rigidity. But in square lattice system, the critical force always decreases with the increasing bending rigidity. In contrast, when the intrinsic curvature is greater than the critical value, the larger bending rigidity always results in a larger critical force in both lattice systems.
關聯:	Chinese Physics B 24(2), 028701
DOI:	10.1088/1674-1056/24/2/028701
顯示於類別:	[物理學系暨研究所] 期刊論文

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