Dielectric studies of proton transport in hydrated proteins

Pissis, P; Anagnostopoulou-Konsta, A

dc.contributor.author	Pissis, P	en
dc.contributor.author	Anagnostopoulou-Konsta, A	en
dc.date.accessioned	2014-03-01T01:08:19Z
dc.date.available	2014-03-01T01:08:19Z
dc.date.issued	1991	en
dc.identifier.issn	0167-2738	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10407
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0026156473&partnerID=40&md5=a473c24a756a5d71186e365ebb29f843	en
dc.subject.classification	Chemistry, Physical	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	Proteins--Dielectric Properties	en
dc.subject.other	Thermodynamics--Calculations	en
dc.subject.other	Hydrated Proteins	en
dc.subject.other	Isothermal Dielectric Measurements	en
dc.subject.other	Lysozyme Powders	en
dc.subject.other	Thermally Stimulated Depolarization Current (TSDC)	en
dc.subject.other	Protons	en
dc.title	Dielectric studies of proton transport in hydrated proteins	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1991	en
heal.abstract	Proton transport in hydrated lysozyme powders is studied by means of the thermally stimulated depolarisation current (TSDC) method in the temperature range 77-300 K and the water content range 0.070-0.610 w/w. The results imply the existence of two separate proton transport processes. The corresponding dispersions were studied in detail by means of thermal sampling and partial heating techniques. They were found to be multiple with both activation energy W and pre-exponential factor tau-0 being distributed parameters. The spectra of W and tau-0 were determined at several water contents. Both dispersions become faster with increasing water content. The temperature and water content of their saturation can be related to critical water contents and possible structural changes of the protein and the hydration layers.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Solid State Ionics	en
dc.identifier.isi	ISI:A1991FV78400022	en
dc.identifier.volume	46	en
dc.identifier.issue	1-2	en
dc.identifier.spage	141	en
dc.identifier.epage	145	en