Dynamical Light Scattering for DNA-CTMA: DR1 chains: Wormlike Semi-Flexible Model, Coil Size and Persistence Length

被引：0

作者：

Mitus, A. C. ^{[1
]}

Radosz, W. ^{[1
]}

Pawlik, G. ^{[1
]}

Lazar, C. A. ^{[2
]}

Kajzar, F. ^{[2
,3
]}

Rau, I. ^{[2
]}

机构：

[1] Univ Sci & Technol, Fac Fundamental Problems Technol, Dept Theoret Phys, Wroclaw, Poland

[2] Univ Politehn Bucuresti, Fac Appl Chem & Mat Sci, Bucharest, Romania

[3] Univ Claude Bernard, Chim Lab, CNRS, ENS Lyon, Villeurbanne, France

来源：

NANOBIOSYSTEMS: PROCESSING, CHARACTERIZATION, AND APPLICATIONS IX | 2016年 / 9928卷

关键词：

DNA; Dynamic Light Scattering; coil size; persistence length; wormlike model;

D O I：

10.1117/12.2238000

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Recent experimental Dynamic Light Scattering (DLS) studies of the coil sizes of DNA-CTMA: Rh solutions have lead to numerical discrepancies with theoretical predictions amounting to one-two orders of magnitude. 1 In this paper, which has partially character of a tutorial, we present the basic theoretical concepts underlying an analysis of the polymer coil sizes from DLS experiments. In particular, we discuss the limitations of those methods. We present a wormlike model of a polymer chain which is a promising candidate for inferring information about the spatial structure of the DNA chain from experimental data.

引用

页数：7

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