Quasi-elastic neutron scattering study of hydrated DNA

I. A. Beta; I. Michalarias; R. C. Ford; J. C. Li; M. C. Bellissent-Funel

doi:10.1016/S0301-0104(03)00231-3

Quasi-elastic neutron scattering study of hydrated DNA

I. A. Beta, I. Michalarias, R. C. Ford, J. C. Li, M. C. Bellissent-Funel

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

Abstract

Dynamics of water around DNA molecules was studied by incoherent quasi-elastic neutron scattering. The mean residence time is about 10 times higher than for liquid water indicating that mobility of water adsorbed on DNA is reduced very significantly. The mean residence time increases from 10 ps for the sample with 2.5 g water/g DNA to 18 ps for a water content of 0.31 g water/g DNA. The activation energy of diffusion for water in hydrated DNA samples determined by the Arrhenius plot is Ea = 6.9 kcal/mol, a value significantly higher than 4.2 kcal/mol estimated for liquid water. © 2003 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	451-454
Number of pages	3
Journal	Chemical Physics
Volume	292
Issue number	2-3
DOIs	https://doi.org/10.1016/S0301-0104(03)00231-3
Publication status	Published - 1 Aug 2003

Keywords

Biological transport (diffusion; quasi-elastic neutron scattering study of hydrated DNA); Hydration (quasi-elastic neutron scattering study of hydrated DNA); DNA Role: BSU (Biological study, unclassified), PRP (Properties), BIOL (Biological study) (quasi-elastic neutron scattering study of hydrated DNA)

Access to Document

10.1016/S0301-0104(03)00231-3

Cite this

@article{aacca99db33a49609ed3f65edd38fa45,

title = "Quasi-elastic neutron scattering study of hydrated DNA",

abstract = "Dynamics of water around DNA molecules was studied by incoherent quasi-elastic neutron scattering. The mean residence time is about 10 times higher than for liquid water indicating that mobility of water adsorbed on DNA is reduced very significantly. The mean residence time increases from 10 ps for the sample with 2.5 g water/g DNA to 18 ps for a water content of 0.31 g water/g DNA. The activation energy of diffusion for water in hydrated DNA samples determined by the Arrhenius plot is Ea = 6.9 kcal/mol, a value significantly higher than 4.2 kcal/mol estimated for liquid water. {\textcopyright} 2003 Elsevier Science B.V. All rights reserved.",

keywords = "Biological transport (diffusion; quasi-elastic neutron scattering study of hydrated DNA); Hydration (quasi-elastic neutron scattering study of hydrated DNA); DNA Role: BSU (Biological study, unclassified), PRP (Properties), BIOL (Biological study) (quasi-elastic neutron scattering study of hydrated DNA)",

author = "Beta, {I. A.} and I. Michalarias and Ford, {R. C.} and Li, {J. C.} and Bellissent-Funel, {M. C.}",

year = "2003",

month = aug,

day = "1",

doi = "10.1016/S0301-0104(03)00231-3",

language = "English",

volume = "292",

pages = "451--454",

journal = "Chemical Physics",

issn = "0301-0104",

publisher = "Elsevier BV",

number = "2-3",

}

TY - JOUR

T1 - Quasi-elastic neutron scattering study of hydrated DNA

AU - Beta, I. A.

AU - Michalarias, I.

AU - Ford, R. C.

AU - Li, J. C.

AU - Bellissent-Funel, M. C.

PY - 2003/8/1

Y1 - 2003/8/1

N2 - Dynamics of water around DNA molecules was studied by incoherent quasi-elastic neutron scattering. The mean residence time is about 10 times higher than for liquid water indicating that mobility of water adsorbed on DNA is reduced very significantly. The mean residence time increases from 10 ps for the sample with 2.5 g water/g DNA to 18 ps for a water content of 0.31 g water/g DNA. The activation energy of diffusion for water in hydrated DNA samples determined by the Arrhenius plot is Ea = 6.9 kcal/mol, a value significantly higher than 4.2 kcal/mol estimated for liquid water. © 2003 Elsevier Science B.V. All rights reserved.

AB - Dynamics of water around DNA molecules was studied by incoherent quasi-elastic neutron scattering. The mean residence time is about 10 times higher than for liquid water indicating that mobility of water adsorbed on DNA is reduced very significantly. The mean residence time increases from 10 ps for the sample with 2.5 g water/g DNA to 18 ps for a water content of 0.31 g water/g DNA. The activation energy of diffusion for water in hydrated DNA samples determined by the Arrhenius plot is Ea = 6.9 kcal/mol, a value significantly higher than 4.2 kcal/mol estimated for liquid water. © 2003 Elsevier Science B.V. All rights reserved.

KW - Biological transport (diffusion; quasi-elastic neutron scattering study of hydrated DNA); Hydration (quasi-elastic neutron scattering study of hydrated DNA); DNA Role: BSU (Biological study, unclassified), PRP (Properties), BIOL (Biological study) (quasi-

U2 - 10.1016/S0301-0104(03)00231-3

DO - 10.1016/S0301-0104(03)00231-3

M3 - Article

SN - 0301-0104

VL - 292

SP - 451

EP - 454

JO - Chemical Physics

JF - Chemical Physics

IS - 2-3

ER -

Quasi-elastic neutron scattering study of hydrated DNA

Abstract

Keywords

Access to Document

Fingerprint

Cite this