Role of excited states in low-energy electron (LEE) induced strand breaks in DNA model systems: influence of aqueous environment.
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ABSTRACT:
SUBMITTER: Kumar A
PROVIDER: S-EPMC3023112 | biostudies-literature | 2009 Jul
REPOSITORIES: biostudies-literature
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Role of excited states in low-energy electron (LEE) induced strand breaks in DNA model systems: influence of aqueous environment.
Kumar Anil A Sevilla Michael D MD
Chemphyschem : a European journal of chemical physics and physical chemistry 20090701 9-10
Low-energy electrons (LEEs) interact with a DNA model system to create a variety of excited states. In the gas phase, dissociative (sigma*) states are accessible by LEEs with energy <4 eV (see picture) and cause facile strand breaks through a dissociative electron attachment mechanism. However, under solvation these dissociative (sigma*) states are blue-shifted and are less accessible to LEEs. ...[more]
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