Dissociative electron attachment to DNA.
Electron-stimulated desorption of anions from thin films of linear and supercoiled DNA is investigated in the range 3-20 eV. Resonant structures are observed with maxima at 9.4+/-0.3, 9.2+/-0.3, and 9.2+/-0.3 eV, respectively, in the yield dependence of H-, O-, and OH- on the incident electron energy. Their formation is attributed to dissociative electron attachment.
Pan
X
X
Group of the Canadian Institutes of Health Research in the Radiation Sciences, Faculté de médecine, Université de Sherbrooke, Sherbrooke (QC) Canada J1H 5N4.
Cloutier
P
P
Hunting
D
D
Sanche
L
L
D000838:Anions / Q000737:chemistry; D004249:DNA Damage; D004278:DNA, Superhelical / Q000737:chemistry* / Q000528:radiation effects; D004583:Electrons
D000838:Anions; D004278:DNA, Superhelical