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EnglishFrom a large volume of experimental data of relaxation of water in various aqueous mixtures, in different forms of nano-confinement, and in two hydrated proteins, we show the presence of a secondary relaxation in all these systems that have similar characteristics. This ubiquitous secondary relaxation originates from water in the systems and is the analogue of the universal Johari-Goldstein secondary relaxation of glass-forming substances in general. Like all Johari-Goldstein secondary relaxation, this one from water bears an intimate and important relation to the primary structural relaxation, and hence it plays a fundamental role in glass transition or function of these water containing systems. © 2008 American Institute of Physics.
| Titolo: | Universal secondary relaxation of water in aqueous mixtures, in nano-confinement, and in hydrated proteins |
| Autori interni: | |
| Anno del prodotto: | 2008 |
| Rivista: | |
| Handle: | http://hdl.handle.net/11568/857502 |
| ISBN: | 9780735405011 |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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http://hdl.handle.net/11568/857502
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