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  • Title: Enhanced strand break induction of DNA by resonant metal-innershell photoabsorption.
    Author: Le Sech C, Takakura K, Saint-Marc C, Frohlich H, Charlier M, Usami N, Kobayashi K.
    Journal: Can J Physiol Pharmacol; 2001 Feb; 79(2):196-200. PubMed ID: 11233568.
    Abstract:
    We determined the number of single and double strand breaks (ssb and dsb) in a DNA-chloroterpyridine platinum complex induced by resonant photoabsorption in the L(III) innershell of a platinum atom. The number of ssb and dsb were measured in supercoiled plasmids (AG30) versus the chloroterpyridine platinum concentration, i.e., the ratio of intercalated molecules to the number of phosphate sites in DNA. A significant increase in the number of ssb and dsb was observed when the DNA contained intercalated molecules. This technique is an efficient way to induce ssb and dsb triggered by the atomic Auger effect.
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