Issue 12, 2024

Interaction of low-energy electrons with radiosensitizers

Abstract

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.

Graphical abstract: Interaction of low-energy electrons with radiosensitizers

Article information

Article type
Perspective
Submitted
10 Dec. 2023
Accepted
12 Febr. 2024
First published
15 Febr. 2024
This article is Open Access
Creative Commons BY-NC license

Phys. Chem. Chem. Phys., 2024,26, 9112-9136

Interaction of low-energy electrons with radiosensitizers

B. Sedmidubská and J. Kočišek, Phys. Chem. Chem. Phys., 2024, 26, 9112 DOI: 10.1039/D3CP06003A

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