教師資料查詢 | 類別: 期刊論文 | 教師: 周子聰 Zicong Zhou (瀏覽個人網頁)

標題:Elasticity and stability of a helical filament with spontaneous curvatures and isotropic bending rigidity
學年96
學期1
出版(發表)日期2007/12/10
作品名稱Elasticity and stability of a helical filament with spontaneous curvatures and isotropic bending rigidity
作品名稱(其他語言)
著者周子聰; Zhou, Zicong; Joós, Béla; Lai, Pik-yin; Young, Yuan-shin; Jan, Jeng-huei
單位淡江大學物理學系
出版者World Scientific Publishing
著錄名稱、卷期、頁數Modern Physics Letters B 21(28), pp.1895-1913
摘要We derive the shape equations in terms of Euler angles for a uniform elastic rod with isotropic bending rigidity and spontaneous curvature, and study within this model the elasticity and stability of a helical filament under uniaxial force and torque. We find that due to the special requirements on the boundary conditions, a static slightly distorted helix cannot exist in this system except in some special cases. We show analytically that the extension of a helix may undergo a one-step sharp transition. This agrees quantitatively with experimental observations for a stretched helix in a chemically-defined lipid concentrate (CDLC). We predict further that under twisting, the extension of a helix in CDLC may also exhibit similar behavior. We find that a negative twist tends to destabilize a helix.
關鍵字Elasticity;biopolymer;helix;filament
語言英文
ISSN0217-9849
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版
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