Defects on semiflexible filaments: Kinks and twist kinks
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- 作者：Nam-Kyung Lee ; Albert Johner
- 关键词：Biofilaments ; Random copolymers ; Polymer theory ; Worm ; like chain
- 刊名：Journal of the Korean Physical Society
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：68
- 期：7
- 页码：923-928
- 全文大小：752 KB
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Albert Johner (1) (2)
1. Institute of Fundamental Physics, Department of Physics, Sejong University, Seoul, 05006, Korea
2. Institut Charles Sadron, Université de Strasbourg, CNRS UPR22, 23 rue du Loess 67034, 67034, Strasbourg cedex 2, France - 刊物主题：Physics, general; Theoretical, Mathematical and Computational Physics; Particle and Nuclear Physics;
- 出版者：Springer Netherlands
- ISSN：1976-8524
文摘
Due to local interactions with ligands or to global constraints, semiflexible filaments can exhibit localized defects. We focus on filaments laying flat on a surface. The two lowest order singularities are addressed: discontinuities of the orientation, which are called kink, and discontinuities of the curvature. The latter are called twist kinks in flattened helical filaments where they can form spontaneously. We calculate the partition functions for a given defect fugacity and discuss some often measured quantities like the correlation of the orientation along the filament.