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Titolo:
Diffusive dynamics of water in the presence of homologous disaccharides: Acomparative study by quasi elastic neutron scattering. IV.
Autore:
Magazu, S; Villari, V; Migliardo, P; Maisano, G; Telling, MTF;
Indirizzi:
Univ Messina, Dipartimento Fis, I-98166 Messina, Italy Univ Messina Messina Italy I-98166 artimento Fis, I-98166 Messina, Italy Univ Messina, INFM, I-98166 Messina, Italy Univ Messina Messina Italy I-98166 Messina, INFM, I-98166 Messina, Italy Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England Rutherford Appleton Lab Didcot Oxon England OX11 0QX 1 0QX, Oxon, England
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY B
fascicolo: 9, volume: 105, anno: 2001,
pagine: 1851 - 1855
SICI:
1520-6106(20010308)105:9<1851:DDOWIT>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
ALPHA,ALPHA-TREHALOSE-WATER SOLUTIONS; TREHALOSE GLASS; SIMULATION; MEMBRANES; MOTIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Migliardo, P Univ Messina, Dipartimento Fis, C Papardo S Sperone 31, I-98166 Messina, Italy Univ Messina C Papardo S Sperone 31 Messina Italy I-98166 ly
Citazione:
S. Magazu et al., "Diffusive dynamics of water in the presence of homologous disaccharides: Acomparative study by quasi elastic neutron scattering. IV.", J PHYS CH B, 105(9), 2001, pp. 1851-1855

Abstract

The present paper reports on the study of the disaccharides' dynamics in aqueous solutions and discusses the role of their interaction with water, which seems to be responsible for the protective action on biological membranes and tissues. In particular, using QENS (IRIS at ISIS, RAL, U.K.) we compared the quasielastic spectra from three homologous disaccharides (trehalose, maltose, and sucrose) with a hydration of 20 water molecules per each disaccharide molecule. The isotopic substitution method allowed us to study also the dynamics of water in the presence of the disaccharides. Our resultsshow that trehalose is the most effective in slowing down the water dynamics, inducing a more extensive hydration layer.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 18:19:45