MOESSBAUER AND POSITRON ANNIHILATION STUDY OF OXYHEMOGLOBIN EXPOSED TO γ-RAYS AND ELECTRONS

摘要

The results of Moessbauer and positron life-time study of oxyhemoglobin radiolysis were considered. The changes of iron-containing compounds resulting from oxyhemoglobin irradiation by γ-rays and electrons were determined by Moessbauer spectroscopy. Variations of positron annihilation parameters of irradiated oxyhemoglobin indicated some structural modifications of protein molecule. It was shown that oxyhemoglobin radiolysis could depend on the type and energy of radiation as well as on oxyhemoglobin samples.