Marginal Nature of DNA Solutions

Eyal Shafran; Alon Yaniv; Oleg Krichevsky

doi:10.1103/PhysRevLett.104.128101

Marginal Nature of DNA Solutions

Eyal Shafran, Alon Yaniv, Oleg Krichevsky

Department of Physics

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We adapt a scanning fluorescence correlation spectroscopy technique to measure the structure factor of complex fluid systems and present the first measurements of the structure of semidilute solutions of long DNA polymers. The measured structure factors exhibit screening effects which, as expected for semidilute polymer solutions, grow stronger with increasing DNA concentration c. The measured concentration dependence of the screening length ξ c0.53 ^±0.02 is unusual, but can be understood within the framework of a marginal solutions theory for semiflexible polymers.

Original language	English
Article number	128101
Journal	Physical Review Letters
Volume	104
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.104.128101
State	Published - 23 Mar 2010

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.104.128101

Cite this

@article{a80f5e4bfc4c49269e43ad084b384934,

title = "Marginal Nature of DNA Solutions",

abstract = "We adapt a scanning fluorescence correlation spectroscopy technique to measure the structure factor of complex fluid systems and present the first measurements of the structure of semidilute solutions of long DNA polymers. The measured structure factors exhibit screening effects which, as expected for semidilute polymer solutions, grow stronger with increasing DNA concentration c. The measured concentration dependence of the screening length ξ c0.53 ±0.02 is unusual, but can be understood within the framework of a marginal solutions theory for semiflexible polymers.",

author = "Eyal Shafran and Alon Yaniv and Oleg Krichevsky",

year = "2010",

month = mar,

day = "23",

doi = "10.1103/PhysRevLett.104.128101",

language = "English",

volume = "104",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "12",

}

TY - JOUR

T1 - Marginal Nature of DNA Solutions

AU - Shafran, Eyal

AU - Yaniv, Alon

AU - Krichevsky, Oleg

PY - 2010/3/23

Y1 - 2010/3/23

N2 - We adapt a scanning fluorescence correlation spectroscopy technique to measure the structure factor of complex fluid systems and present the first measurements of the structure of semidilute solutions of long DNA polymers. The measured structure factors exhibit screening effects which, as expected for semidilute polymer solutions, grow stronger with increasing DNA concentration c. The measured concentration dependence of the screening length ξ c0.53 ±0.02 is unusual, but can be understood within the framework of a marginal solutions theory for semiflexible polymers.

AB - We adapt a scanning fluorescence correlation spectroscopy technique to measure the structure factor of complex fluid systems and present the first measurements of the structure of semidilute solutions of long DNA polymers. The measured structure factors exhibit screening effects which, as expected for semidilute polymer solutions, grow stronger with increasing DNA concentration c. The measured concentration dependence of the screening length ξ c0.53 ±0.02 is unusual, but can be understood within the framework of a marginal solutions theory for semiflexible polymers.

UR - http://www.scopus.com/inward/record.url?scp=77949695903&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.104.128101

DO - 10.1103/PhysRevLett.104.128101

M3 - Article

C2 - 20366566

AN - SCOPUS:77949695903

SN - 0031-9007

VL - 104

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

M1 - 128101

ER -

Marginal Nature of DNA Solutions

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this