Article révisé par les pairs
Résumé : The effects of γ-irradiation and changes in the macromolecular structure on the water proton resonance spectra observed in frozen and liquid solutions have been compared for the DNA and polynucleotide solutions, using H2O or mixed H2O/D2O solvents. The results indicate that in order to obtain information concerning the role of hydration water in mediating the overall radiation damage, the NMR studies must be performed in the frozen state.