Mossbauer and positron life-time study of oxyhemoglobin solution irradiated by electrons

Authors
Oshtrakh, MI Semionkin, VA Kopelyan, EA Milder, OB
Citation
Mi. Oshtrakh et al., Mossbauer and positron life-time study of oxyhemoglobin solution irradiated by electrons, RADIAT PH C, 55(5-6), 1999, pp. 549-554
Citations number
20
Categorie Soggetti
Physics
Journal title
RADIATION PHYSICS AND CHEMISTRY
ISSN journal
0969806X → ACNP
Volume
55
Issue
5-6
Year of publication
1999
Pages
549 - 554
Database
ISI
SICI code
0969-806X(199908)55:5-6<549:MAPLSO>2.0.ZU;2-T
Abstract
Human oxyhemoglobin concentrated solution exposed to electrons with average energy of 10 MeV in doses of 1.7, 2.5 and 5.0 kGy was studied by Mossbauer spectroscopy and positron life-time technique. Precise measurements of Mos sbauer spectra of irradiated oxyhemoglobin samples revealed deoxygenation p rocess and formation of two ferric compounds at 1.7 kGy and ferrous and fer ric compounds at 2.5 and 5.0 kGy. Positron life-time parameters showed decr ease of the free volume radius and the total free volume in irradiated oxyh emoglobin solutions. (C) 1999 Elsevier Science Ltd. All rights reserved.