Low-energy electron-induced oxygen fixation to DNA SAMs studied by stimulated anion desorption - Details

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Massey, S. (Massey, S..) ^[1] | Mirsaleh-Kohan, N. (Mirsaleh-Kohan, N..) ^[2] | Zheng, Y. (Zheng, Y..) ^[3] | Bass, A.D. (Bass, A.D..) ^[4] | Sanche, L. (Sanche, L..) ^[5]

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Abstract：

Reactions　of　18O2　with　self-assembled　monolayer　films　of　thiolated　DNA　oligomers　are　studied　by　the　electron　stimulated　desorption　of　anions.　Electrons　with　energies　<　20　eV　initiate　dehydrogenation　of　the　DNA　by　resonant　and　non-resonant　processes,　to　form　radical　sites　for　oxygenation.　This　damage　mechanism　may　underlie　the　oxygen　fixation　process　of　radiobiology.　©　Published　under　licence　by　IOP　Publishing　Ltd.

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[ 1 ] [Massey, S.]Department of Nuclear Medicine and Radiobiology, University of Sherbrooke, J1H 5N4, Sherbrooke, QC, Canada
[ 2 ] [Mirsaleh-Kohan, N.]Department of Chemistry, University of Tennessee, Knoxville, TN 37996-1600, United States
[ 3 ] [Zheng, Y.]Research Institute of Photocatalysis, State Key Laboratory, Fuzhou University, Fuzhou, 350002, China
[ 4 ] [Bass, A.D.]Department of Nuclear Medicine and Radiobiology, University of Sherbrooke, J1H 5N4, Sherbrooke, QC, Canada
[ 5 ] [Sanche, L.]Department of Nuclear Medicine and Radiobiology, University of Sherbrooke, J1H 5N4, Sherbrooke, QC, Canada

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Journal of Physics: Conference Series

ISSN： 1742-6588

Year： 2014

Issue： SECTION 5

Volume： 488

Language： English

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