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Role of water content in dielectric properties and delayed luminescence of bovine Achilles’ tendon
Author(s) -
Gulino M.,
Bellia P.,
Falciglia F.,
Musumeci F.,
Pappalardo A.,
Scordino A.,
Triglia A.
Publication year - 2005
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2005.09.077
Subject(s) - achilles tendon , luminescence , permittivity , excitation , dielectric , materials science , tendon , chemistry , molecular physics , optoelectronics , physics , anatomy , medicine , quantum mechanics
In order to investigate the role of water network in collagen structure, measurement of dielectric permittivity was performed on bovine Achilles’ tendon as a function of water content. The data show a sudden decrease of the permittivity at each measured frequency value when the tendon humidity decreases. A similar behaviour is shown by the total number of photons emitted in delayed luminescence (DL) experiments. The comparison of the two results is in agreement with the hypothesis that DL is connected to the excitation and subsequent decay of collective electronic states, whose properties depend on the organized structure of the system.