Collective density fluctuations of DNA hydration water in the time-window below 1 ps

被引：22

作者：

Cornicchi, Elena ^{[1
,2
]}

Sebastiani, Federico ^{[1
]}

De Francesco, Alessio ^{[3
]}

Orecchini, Andrea ^{[1
,2
]}

Paciaroni, Alessandro ^{[1
,2
]}

Petrillo, Caterina ^{[1
,2
]}

Sacchetti, Francesco ^{[1
,2
]}

机构：

[1] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy

[2] Univ Perugia, Dipartimento Fis, Unita Perugia, Ist Off Mat, I-06123 Perugia, Italy

[3] CNR, Inst Laue Langevin, Unita Grenoble, Ist Off Mat, F-38042 Grenoble, France

来源：

JOURNAL OF CHEMICAL PHYSICS | 2011年 / 135卷 / 02期

关键词：

biochemistry; DNA; molecular biophysics; solvation; water; ELASTIC NEUTRON-SCATTERING; X-RAY; PROTEIN HYDRATION; HYDROGEN-EXCHANGE; BASE COMPOSITION; DYNAMICS; TEMPERATURE; TRANSITION; CRYSTAL; SPECTROSCOPY;

D O I：

10.1063/1.3609101

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：

The coherent density fluctuations propagating through DNA hydration water were studied by neutron scattering spectroscopy. Two collective modes were found to be sustained by the aqueous solvent: a propagating excitation, characterised by a speed of about 3500 m/s, and another one placed at about 6 meV. These results globally agree with those previously found for the coherent excitations in bulk water, although in DNA hydration water the speed of propagating modes is definitely higher than that of the pure solvent. The short-wavelength collective excitations of DNA hydration water are reminiscent of those observed in protein hydration water and in the amorphous forms of ice. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3609101]

引用

页数：7

共 43 条

[1] Brillouin Neutron Spectroscopy as a Probe to Investigate Collective Density Fluctuations in Biomolecules Hydration Water
Russo, D.
Orecchini, A.
De Francesco, A.
Formisano, F.
Laloni, A.
Petrillo, C.
Sacchetti, F.
SPECTROSCOPY-AN INTERNATIONAL JOURNAL, 2012, 27 (5-6): : 293 - 305
[2] Water density fluctuations relevant to hydrophobic hydration are unaltered by attractions
Remsing, Richard C.
Patel, Amish J.
JOURNAL OF CHEMICAL PHYSICS, 2015, 142 (02):
[3] Pressure effects on collective density fluctuations in water and protein solutions
Russo, Daniela
Laloni, Alessio
Filabozzi, Alessandra
Heyden, Matthias
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2017, 114 (43) : 11410 - 11415
[4] Molecular dynamics study of collective water vibrations in a DNA hydration shell
Tetiana Bubon
Oleksii Zdorevskyi
Sergiy Perepelytsya
European Biophysics Journal, 2023, 52 : 69 - 79
[5] Molecular dynamics study of collective water vibrations in a DNA hydration shell
Bubon, Tetiana
Zdorevskyi, Oleksii
Perepelytsya, Sergiy
EUROPEAN BIOPHYSICS JOURNAL WITH BIOPHYSICS LETTERS, 2023, 52 (1-2): : 69 - 79
[6] Deciphering Density Fluctuations in the Hydration Water of Brownian Nanoparticles via Upconversion Thermometry
Maturi, Fernando E.
Raposo Filho, Ramon S.
Brites, Carlos D. S.
Fan, Jingyue
He, Ruihua
Zhuang, Bilin
Liu, Xiaogang
Carlos, Luis D.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2024, 15 (09): : 2606 - 2615
[7] Quantifying Water Density Fluctuations and Compressibility of Hydration Shells of Hydrophobic Solutes and Proteins
Sarupria, Sapna
Garde, Shekhar
PHYSICAL REVIEW LETTERS, 2009, 103 (03)
[8] Hydration dynamics and time scales of coupled water-protein fluctuations
Li, Tanping
Hassanali, Ali A.
Kao, Ya-Ting
Zhong, Dongping
Singer, Sherwin J.
1600, American Chemical Society, 2540 Olentangy River Road, P.O. Box 3337, Columbus, OH 43210-3337, United States (129):
[9] Hydration dynamics and time scales of coupled water-protein fluctuations
Li, Tanping
Hassanali, Ali A.
Kao, Ya-Ting
Zhong, Dongping
Singer, Sherwin J.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (11) : 3376 - 3382
[10] Time-dependent density fluctuations in liquid water
Waldron, Conor J.
English, Niall J.
CHEMICAL PHYSICS LETTERS, 2016, 649 : 119 - 122

← 1 2 3 4 5 →