ESR study of γ-irradiated hyperquenched glassy water doped with thymine and its nucleoside

Autor: Ewa Szajdzinska-Pietek, Erwin Mayer, Justyna Staluszka, Andrzej Plonka, Andreas Hallbrucker, Ingrid Kohl
Rok vydání: 2003
Předmět:
Zdroj: Radiation Physics and Chemistry. 67:247-250
ISSN: 0969-806X
DOI: 10.1016/s0969-806x(03)00046-x
Popis: Using X-band ESR spectroscopy we have studied radicals produced by g-irradiation at 77 K in hyperquenched glassy water (HGW) doped with thymine, 2 0 -deoxythymidyne, 2-deoxy-d-ribose, and the equimolar mixture of thymine and 2deoxy-d-ribose. In HGW matrix the solute molecules are not freeze-concentrated, so the indirect radiation effects on biomolecules can be followed. The results are discussed in terms of the mechanism of radical formation and the role of sugar in radiation damage of nucleosides. r 2003 Elsevier Science Ltd. All rights reserved.
Databáze: OpenAIRE