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Título

Coupling between amino acid and water dynamics by broadband dielectric spectroscopy

AutorSaiz, Luciana M.; Cerveny, Silvina
Fecha de publicación2014
EditorAmerican Institute of Physics
CitaciónAIP Conference Proceedings 1599: 146-149 (2014)
ResumenThe dynamics of proline aqueous solution was investigated for water concentrations from 40 to 60 wt% by dielectric spectroscopy (106 - 109 Hz) in the temperature range from 230 to 300 K, where the solutions remain amorphous. We found two relaxation processes, related with the reorientation of proline and water as previously observed in a higher frequency range at room temperature [1]. We found that both dynamics are strongly coupled, as previously observed in hydrated proteins powders, in spite of the fact that a single amino acid is a molecule much simpler than a protein.
URIhttp://hdl.handle.net/10261/136911
DOI10.1063/1.4876799
Identificadoresdoi: 10.1063/1.4876799
issn: 0094-243X
e-issn: 1551-7616
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