Protonic percolation on hydrated lysozyme powders studied by the method of thermally stimulated depolarisation currents

 
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1990 (EN)
Protonic percolation on hydrated lysozyme powders studied by the method of thermally stimulated depolarisation currents (EN)

Pissis, P (EN)
Anagnostopoulou-Konsta, A (EN)

N/A (EN)

Thermally stimulated depolarisation current measurements on hydrated lysozyme powder in the temperature range 77-300 K and water content range 0.07-0.29 water/g dry protein show a broad low-temperature peak in the range 100-160 K and a complex high-temperature band in the range 160-300 K. Four dispersions were found to contribute to the high-temperature band, the α2-dispersion, the α-dispersion, the Ω-dispersion and a 'new' dispersion. The α-dispersion and the new dispersion occurring in the same temperature range were studied in detail. The activation energies of the α-dispersion and the new dispersion were determined. Both dispersions are characterised by distributions of relaxation times and activation energies. (EN)

journalArticle

Proteins (EN)
Enzymes (EN)
Lysozyme Powders (EN)
Powders (EN)
Protonic Percolation (EN)
Percolation (EN)
Electric Measurements--Current (EN)
Thermally Stimulated Depolarization Currents (EN)

Εθνικό Μετσόβιο Πολυτεχνείο (EL)
National Technical University of Athens (EN)

Journal of Physics D: Applied Physics (EN)

1990


IOP PUBLISHING LTD (EN)



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