INVESTIGADORES
SAIZ luciana Maria
artículos
Título:
Coupling between amino acid and water dynamics by broadband dielectric spectroscopy
Autor/es:
SÁIZ LUCIANA; CERVENY SILVINA
Revista:
AIP CONFERENCE PROCEEDINGS
Editorial:
AIP Publishing Center
Referencias:
Lugar: Melville; Año: 2014 p. 146 - 149
ISSN:
0094-243X
Resumen:
The dynamics of proline aqueous solution was investigated for water concentrations from 40 to 60 wt% by dielectric spectroscopy (106 ? 109Hz) 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. 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.
