Thermal properties of a two-dimensional intrinsically curved semiflexible biopolymer
學年 105
學期 2
出版（發表）日期 2017-03-15
作品名稱 Thermal properties of a two-dimensional intrinsically curved semiflexible biopolymer
作品名稱（其他語言）
著者 Zicong Zhou; 周子聰; Yanting Wang; 王延颋
單位
出版者
著錄名稱、卷期、頁數 Chinese Physics B 26(3), 038701(6 pages)
摘要 We study the behaviors of mean end-to-end distance and specific heat of a two-dimensional intrinsically curved semiflexible biopolymer with a hard-core excluded volume interaction. We find that the mean square end-to-end distance RN2∝Nβ at large N, with N being the number of monomers. Both β and proportional constant are dependent on the reduced bending rigidity κ and intrinsic curvature c. The larger the c, the smaller the proportional constant, and 1.5≥β≥1. Up to a moderate κ=κc, or down to a moderate temperature T=Tc, β=1.5, the same as that of a self-avoiding random walk, and the larger the intrinsic curvature, the smaller the κc. However, at a large κ or a low temperature,βis close to 1, and the conformation of the biopolymer can be more compact than that of a random walk. There is an intermediate regime with 1.5 > β > 1 and the transition from β=1.5 to β=1 is smooth. The specific heat of the system increases smoothly with increasing κ or there is no peak in the specific heat. Therefore, a nonvanishing intrinsic curvature seriously affects the thermal properties of a semiflexible biopolymer, but there is no phase transition in the system.
關鍵字 thermal property;semiflexible biopolymer;intrinsic curvature
語言 en
ISSN 1674-1056
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Zicong Zhou;周子聰
審稿制度 是
國別 GBR
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/109477 )