Interaction of low-energy electrons with radiosensitizers

0583948 - ÚFCH JH 2025 RIV GB eng J - Journal Article
Sedmidubská, Barbora - Kočišek, Jaroslav
Interaction of low-energy electrons with radiosensitizers.
Physical Chemistry Chemical Physics. Roč. 26, č. 12 (2024), s. 9112-9136. ISSN 1463-9076. E-ISSN 1463-9084
R&D Projects: GA ČR(CZ) GX21-26601X
Grant - others:COST Action(XE) CA18212
Institutional support: RVO:61388955
Keywords : multiply-charged anions * negative-ion formation * gas-phase * dna-damage * hydrated electrons * strand breaks * nitric-oxide * amino-acids * cellular radiosensitization * 5-bromouracil substitution
OECD category: Physical chemistry
Impact factor: 3.3, year: 2022
Method of publishing: Open access
https://pubs.rsc.org/en/content/articlelanding/2024/cp/d3cp06003a

We provide an experimentalist's perspective on the present state-of-the-art in the studies of low-energy electron interactions with common radiosensitizers, including compounds used in combined chemo-radiation therapy and their model systems. Low-energy electrons are important secondary species formed during the interaction of ionizing radiation with matter. Their role in the radiation chemistry of living organisms has become an important topic for more than 20 years. With the increasing number of works and reviews in the field, we would like to focus here on a very narrow area of compounds that have been shown to have radio-sensitizing properties on the one hand, and high reactivity towards low-energy electrons on the other hand. Gas phase experiments studying electron attachment to isolated molecules and environmental effects on reaction dynamics are reviewed for modified DNA components, nitroimidazoles, and organometallics. In the end, we provide a perspective on the future directions that may be important for transferring the fundamental knowledge about the processes induced by low-energy electrons into practice in the field of rational design of agents for concomitant chemo-radiation therapy.
Permanent Link: https://hdl.handle.net/11104/0351934