Mechanism and site of attack for direct damage to DNA by low-energy electrons.
نویسندگان
چکیده
We report results on the desorption of OH- induced by 0-19 eV electrons incident on self-assembled monolayer films made of single and double DNA strands of different orientations with respect to a gold substrate. Such measurements make it possible to deduce the mechanism and site of OH- formation within a biomolecule as complex as DNA. This type of damage is attributed to dissociative electron attachment to the phosphate group of DNA, when it contains the counterion H+.
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عنوان ژورنال:
- Physical review letters
دوره 94 19 شماره
صفحات -
تاریخ انتشار 2005