Collective density fluctuations of DNA hydration water in the time-window below 1ps (Articolo in rivista)

Type
Label
  • Collective density fluctuations of DNA hydration water in the time-window below 1ps (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.3609101 (literal)
Alternative label
  • Elena Cornicchi a,b; Federico Sebastiani a; Alessio De Francesco c; Andrea Orecchini a,b; Alessandro Paciaroni a,b; Caterina Petrillo a,b; Francesco Sacchetti a,b (2011)
    Collective density fluctuations of DNA hydration water in the time-window below 1ps
    in The Journal of chemical physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Elena Cornicchi a,b; Federico Sebastiani a; Alessio De Francesco c; Andrea Orecchini a,b; Alessandro Paciaroni a,b; Caterina Petrillo a,b; Francesco Sacchetti a,b (literal)
Pagina inizio
  • 025101 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 135 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 2 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a Dipartimento di Fisica, Università degli Studi di Perugia, Via Pascoli I-06123 Perugia, Italy, and b Istituto Officina dei Materiali, Unità di Perugia, c/o Dipartimento di Fisica, Università di Perugia, I-06123 Perugia, Italy c CNR-INFM, CRS Soft, c/o OGG, Institut Laue Langevin, 6 rue J.Horowitz F-38042 Grenoble, France and Istituto Officina dei Materiali, Unità di Grenoble, Institut Laue Langevin, 6 rue J.Horowitz F-38042 Grenoble (literal)
Titolo
  • Collective density fluctuations of DNA hydration water in the time-window below 1ps (literal)
Abstract
  • 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. (literal)
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