Dissociative electron attachment to DNA-diamine thin films: impact of the DNA close environment on the OH- and O- decay channels.
Dissociative electron attachment to DNA-diamine thin films: impact of the DNA close environment on the OH- and O- decay channels.
复制标题
DNA-二胺薄膜上的解离电子附着:DNA 封闭环境对 OH- 和 O- 衰变通道的影响。
DOI:
10.1063/1.4815967
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
L. Sanche
中科院分区:
文献类型:
--
作者:
O. Boulanouar;M. Fromm;C. Mavon;P. Cloutier;L. Sanche
We measure the desorption of anions stimulated by the impact of 0-20 eV electrons on highly uniform thin films of plasmid DNA-diaminopropane. The results are accurately correlated with film thickness and composition by AFM and XPS measurements, respectively. Resonant structures in the H(-), O(-), and OH(-) yield functions are attributed to the decay of transient anions into the dissociative electron attachment (DEA) channel. The diamine induces ammonium-phosphate bridges along the DNA backbone, which suppresses the DEA O(-) channel and in counter-part increases considerably the desorption of OH(-). The close environment of the phosphate groups may therefore play an important role in modulating the rate and type of DNA damages induced by low energy electrons.
影响因子:
3.3
作者:
Kumar, Anil;Sevilla, Michael D.
通讯作者:
Sevilla, Michael D.
DOI:
10.1007/978-94-007-2564-5_23
发表时间:
2012
期刊:
--
影响因子:
--
作者:
Prise K
通讯作者:
Prise K
DOI:
10.1002/cphc.200900025
发表时间:
2009-07-13
期刊:
Chemphyschem : a European journal of chemical physics and physical chemistry
影响因子:
--
作者:
Kumar A;Sevilla MD
通讯作者:
Sevilla MD