Stretching an anisotropic DNA

被引：12

作者：

Eslami-Mossallam, B. ^{[1
]}

Ejtehadi, M. R. ^{[1
]}

机构：

[1] Sharif Univ Technol, Dept Phys, Tehran, Iran

来源：

JOURNAL OF CHEMICAL PHYSICS | 2008年 / 128卷 / 12期

关键词：

D O I：

10.1063/1.2842065

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present a perturbation theory to find the response of an anisotropic DNA to the external tension. It is shown that the anisotropy has a nonzero but small contribution to the force-extension curve of the DNA. Thus an anisotropic DNA behaves like an isotropic one with an effective bending constant equal to the harmonic average of its soft and hard bending constants. (C) 2008 American Institute of Physics.

引用

页数：11

共 18 条

[1]

Arfken G.B., 2005, Mathematical Methods for Physicists, V6th edn

[2] Ionic effects on the elasticity of single DNA molecules [J].