http://www.cnr.it/ontology/cnr/individuo/prodotto/ID185855
Mean-square displacement relationship in bioprotectant systems by elastic neutron scattering (Articolo in rivista)
- Type
- Label
- Mean-square displacement relationship in bioprotectant systems by elastic neutron scattering (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/S0006-3495(04)74372-6 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- S. Magazù; G. Maisano; F. Migliardo; C. Mondelli (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Univ Messina, Dipartimento Fis, I-98166 Messina, Italy
INFM-OGG Institut Laue Langevin Grenoble, France (literal)
- Titolo
- Mean-square displacement relationship in bioprotectant systems by elastic neutron scattering (literal)
- Abstract
- Neutron intensity elastic scans on trehalose, maltose, and sucrose/H2O mixtures as a function of concentration, temperature, and exchanged wave vector are presented. The experimental findings show a crossover in molecular fluctuations between harmonic and anharmonic dynamical regimes. A new operative definition for the degree of fragility of glass-forming systems is furnished by using explicitly the connection between viscosity and mean-square displacement. The procedure is tested for the investigated mixtures and for a set of glass-forming systems. In this frame, the stronger character of trehalose/H2O mixture indicates a better attitude in respect to maltose and sucrose/H2O mixtures to encapsulate biostructures in a more rigid matrix. (literal)
- Autore CNR
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