Dielectric study of the hydration mechanism in plant seeds

Konsta Amalia, A; Pissis, Poly; Laudat, Joseph

dc.contributor.author	Konsta Amalia, A	en
dc.contributor.author	Pissis, Poly	en
dc.contributor.author	Laudat, Joseph	en
dc.date.accessioned	2014-03-01T02:41:12Z
dc.date.available	2014-03-01T02:41:12Z
dc.date.issued	1996	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30415
dc.subject	Critical Value	en
dc.subject	Dielectric Spectroscopy	en
dc.subject	Glass Transition	en
dc.subject	Percolation Threshold	en
dc.subject	thermally stimulated current	en
dc.subject	Water Content	en
dc.subject.other	Desorption	en
dc.subject.other	Dielectric properties	en
dc.subject.other	Electric conductivity	en
dc.subject.other	Electric currents	en
dc.subject.other	Glass transition	en
dc.subject.other	Hydration	en
dc.subject.other	Protons	en
dc.subject.other	Sorption	en
dc.subject.other	Spectroscopy	en
dc.subject.other	Temperature	en
dc.subject.other	Water	en
dc.subject.other	Dielectric spectroscopy	en
dc.subject.other	Percolation threshold	en
dc.subject.other	Plant seeds	en
dc.subject.other	Thermally stimulated currents	en
dc.subject.other	Seed	en
dc.title	Dielectric study of the hydration mechanism in plant seeds	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/ISE.1996.578198	en
heal.identifier.secondary	http://dx.doi.org/10.1109/ISE.1996.578198	en
heal.publicationDate	1996	en
heal.abstract	In this work, part of our recent results concerning the investigation of the hydration mechanism in plant seeds, with a) sorption and desorption studies, b) ac dielectric spectroscopy in the 5 Hz - 1 GHz frequency range and c) thermally stimulated currents techniques are described. According to our findings, water in seeds seems to freeze only for concentrations higher than a critical value, whereas for lower hydration it undergoes a glass-like transition, the temperature of which is strongly dependent on the water content of the sample. This glass transition is accompanied by a marked increase of the dc-conductivity, the carriers of which are mainly protons, which occurs only after completion of the proton percolation threshold. The biological implications of these findings are discussed.	en
heal.publisher	IEEE, Piscataway, NJ, United States	en
heal.journalName	Proceedings - International Symposium on Electrets	en
dc.identifier.doi	10.1109/ISE.1996.578198	en
dc.identifier.spage	723	en
dc.identifier.epage	728	en