Evidence for the universal scaling behaviour of a freely relaxing DNA molecule

被引：44

作者：

Manneville, S

Cluzel, P

Viovy, JL

Chatenay, D

Caron, F

机构：

[1] INST PHYS 3,LUDFC,F-67084 STRASBOURG,FRANCE

[2] ECOLE NORMALE SUPER,GENET MOL LAB,F-75230 PARIS,FRANCE

来源：

EUROPHYSICS LETTERS | 1996年 / 36卷 / 06期

关键词：

D O I：

10.1209/epl/i1996-00244-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Relaxation measurements on a fluorescently labelled free DNA molecule after stretching by a Poiseuille flow in a capillary vessel reveal universal scaling features: at intermediate times the scaling exponent of the decay law for the molecule length as a function of time is found to be 0.51+/-0.05. This law is in agreement with the prediction of the Brochard-Wyart ''stem and flower'' model for the relaxation of a stretched polymer chain.

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收藏

页码：413 / 418

页数：6

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