The two main products of ionizing radiation in biological tissues are electrons and radicals. The numerous secondary electrons are generated by ionisation in the molecules in the vicinity of DNA and are produced with a mean energy about 10 eV. These low-energy electrons can lead to DNA strand breaks via dissociative electron attachment and other mechanisms. The modelling of these phenomena requires, on the one hand, an explicit quantum description of the electrons of the target molecule (typically, a subunit of a DNA strand), and on the other hand, a realistic account of the DNA environment. This chapter reviews theoretical and computational approaches that have allowed us to study electron dynamics (excitation, ionization, transport and localization) in systems of biological interest.
|Title of host publication||Nanoscale Insights into Ion-Beam Cancer Therapy|
|Editors||Andrey V. Solov'yov|
|Place of Publication||Switzerland|
|Number of pages||33|
|Publication status||Published - 08 Dec 2016|