Electron ionization and low energy electron attachment to molecules of biological interest

29th International Conference on Photonic, Electronic, and Atomic Collisions

mialek, M.A.^1,2 ; Tanzer, K.^3 ; Neustetter, M.^3 ; Huber, S.^3 ; Schürmann, R.^4 ; Bald, I.^4 ; Denifl, S.^3

Gdansk University of Technology, Faculty of Ocean Engineering and Ship Technology, Department of Control and Energy Engineering, G. Narutowicza 11/12, Gdansk

80-233, Poland^1

Open University, Faculty of Science, Walton Hall, Milton Keynes

MK7 6AA, United Kingdom^2

Institute for Ion Physics and Applied Physics, Center of Molecular Biosciences Innsbruck, Leopold Franzens University of Innsbruck, Technikerstr. 25, Innsbruck

6020, Austria^3

Institut Fr Chemie, Universitt Potsdam, Karl-Liebknecht-Str. 24-25, Potsdam

D-14476, Germany^4

关键词: 3-propanediol;    Biological buffers;    Electron attachment;    Electron impact-ionization;    Electron ionization;    Low energy electrons;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/7/072025/pdf
DOI  :  10.1088/1742-6596/635/7/072025

来源: IOP

【 摘 要 】

Ethylenediaminetetraacetic acid (EDTA) and 2-amino-2-(hydroxymethyl)-1,3-propanediol (TRIS) were investigated by electron impact ionization and low energy electron attachment. Both compounds are components of biological buffers and often are used as DNA stabilizers in irradiation studies. hus it is of a great importance to understand their potential interactions with radiation. Our results revealed that at least one of them, EDTA, may influence the experimental outcomes by O-and OH-production upon electron attachment.