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    題名: Sequence-Dependent Effects on the Properties of Semiflexible Biopolymers
    作者: Zhou, Zicong;Joós, Béla
    貢獻者: 淡江大學物理學系
    關鍵詞: Biopolymers;Mechanics;Photoacoustic effect;Plasmas;Torsional stress;(PL) properties;American Physical Society (APS);External forcing;in-homogeneity;Path integrals;Persistence lengths;Sequence-dependent;Short-range correlations;Spontaneous curvature;Torsion (IGC: D7);Polymers
    日期: 2008-06
    上傳時間: 2013-07-09 15:04:17 (UTC+8)
    出版者: College Park: American Physical Society
    摘要: Using path integral technique, we show exactly that for a semiflexible biopolymer in constant extension ensemble, no matter how long the polymer and how large the external force, the effects of short range correlations in the sequence-dependent spontaneous curvatures and torsions can be incorporated into a model with well-defined mean spontaneous curvature and torsion as well as a renormalized persistence length. Moreover, for a long biopolymer with large mean persistence length, the sequence-dependent persistence lengths can be replaced by their mean. However, for a short biopolymer or for a biopolymer with small persistence lengths, inhomogeneity in persistence lengths tends to make physical observables very sensitive to details and therefore less predictable.
    關聯: Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) 77(6), 061906 (5pages)
    DOI: 10.1103/PhysRevE.77.061906
    顯示於類別:[物理學系暨研究所] 期刊論文

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