%0 Journal Article %1 Ptasinska2007a %A Ptasińska, Sylwia %A Sanche, Léon %D 2007 %J Phys Chem Chem Phys %K chemistry/radiationeffects;Electrons;MolecularStructure Anions analysis;BetaParticles;DNA %N 14 %P 1730--1735 %R 10.1039/b616619a %T Dissociative electron attachment to abasic DNA. %U http://dx.doi.org/10.1039/b616619a %V 9 %X Thin films of the short single DNA strand, GCAT, in which one of the bases has been removed were bombarded with 3 to 15 eV electrons. The yield functions of the H(-), O(-) and OH(-) ions desorbed from these films exhibit a broad peak near 9 eV, which is attributed to dissociative electron attachment to the basic molecules. Whereas removal of any one of the bases considerably decreases N-glycosidic and backbone C-O bond scission, the creation of basic sites does not appreciably modify bond rupture leading to anion electron stimulated desorption. These seemingly contradictory results make it possible to propose a detailed mechanism leading to the transfer of electrons in the range 5-13 eV within DNA.

@article{Ptasinska2007a, abstract = {Thin films of the short single DNA strand, GCAT, in which one of the bases has been removed were bombarded with 3 to 15 eV electrons. The yield functions of the H(-), O(-) and OH(-) ions desorbed from these films exhibit a broad peak near 9 eV, which is attributed to dissociative electron attachment to the basic molecules. Whereas removal of any one of the bases considerably decreases N-glycosidic and backbone C-O bond scission, the creation of basic sites does not appreciably modify bond rupture leading to anion electron stimulated desorption. These seemingly contradictory results make it possible to propose a detailed mechanism leading to the transfer of electrons in the range 5-13 eV within DNA.}, added-at = {2011-07-21T21:36:23.000+0200}, author = {Ptasińska, Sylwia and Sanche, Léon}, biburl = {https://www.bibsonomy.org/bibtex/25df7d9eec2a37e100e3852ff2ef6a526/crc_chus}, doi = {10.1039/b616619a}, institution = {Groupe en Sciences des Radiations, Faculté de Médecine, Université de Sherbrooke, Sherbrooke, QC, Canada J1H 5N4. sylwia.ptasinska@usherbrooke.ca}, interhash = {eeb91202784d6695c3ee35ca51a12deb}, intrahash = {5df7d9eec2a37e100e3852ff2ef6a526}, journal = {Phys Chem Chem Phys}, keywords = {chemistry/radiationeffects;Electrons;MolecularStructure Anions analysis;BetaParticles;DNA}, language = {eng}, medline-pst = {ppublish}, month = Apr, number = 14, pages = {1730--1735}, pmid = {17396184}, timestamp = {2011-07-21T21:38:05.000+0200}, title = {Dissociative electron attachment to abasic DNA.}, url = {http://dx.doi.org/10.1039/b616619a}, volume = 9, year = 2007 }