A relationship between solvent viscosity and biomolecule picosecond thermal fluctuations (Articolo in rivista)

Type
Label
  • A relationship between solvent viscosity and biomolecule picosecond thermal fluctuations (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.chemphys.2007.07.022 (literal)
Alternative label
  • Cornicchi. E; De Francesco A; Marconi M; Onori G; Paciaroni A (2008)
    A relationship between solvent viscosity and biomolecule picosecond thermal fluctuations
    in Chemical physics (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Cornicchi. E; De Francesco A; Marconi M; Onori G; Paciaroni A (literal)
Pagina inizio
  • 219 (literal)
Pagina fine
  • 223 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 345 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • \"[Cornicchi, E.; Marconi, M.; Onori, G.; Paciaroni, A.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy; [Cornicchi, E.; Marconi, M.; Onori, G.; Paciaroni, A.] Unita Perugia, INFM CNR SOFT, I-06123 Perugia, Italy; [Cornicchi, E.; Marconi, M.; Onori, G.; Paciaroni, A.] Univ Perugia, Dipartimento Chim, CEMIN, I-06123 Perugia, Italy; [De Francesco, A.] Inst Laue Langevin, F-38042 Grenoble, France; [De Francesco, A.] CNR INFM CRS SOFT, I-00185 Rome, Italy (literal)
Titolo
  • A relationship between solvent viscosity and biomolecule picosecond thermal fluctuations (literal)
Abstract
  • Through elastic neutron scattering measurements, we investigated the picosecond dynamics of DNA in the hydrated powder state or embedded in glycerol glassy matrix from 20 K to 300 K. We calculated the relaxational contribution of the mean square displacements (MSD) of DNA hydrogen atoms. We found the existence of a linear relationship between the inverse of the biomolecule relaxational MSD and the logarithm of the bulk viscosity of the surrounding environment. From the comparison with the case of lysozyme in the same environments, for which the validity of the relationship was already verified, possible differences and analogies concerning the biomolecule-to-solvent dynamical coupling can be stressed. (C) 2007 Elsevier B.V. All rights reserved. (literal)
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