UV-Induced Adenine Radicals Induced in DNA A‑Tracts: Spectral and Dynamical Characterization

Adenyl radicals generated in DNA single and double strands, (dA)20 and (dA)20·(dT)20, by one- and two-photon ionization by 266 nm laser pulses decay at 600 nm with half-times of 1.0 ± 0.1 and 4 ± 1 ms, respectively. Though ionization initially forms the cation radical, the radicals detected for (dA)...

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Veröffentlicht in:	The journal of physical chemistry letters 2016-10, Vol.7 (19), p.3949-3953
Hauptverfasser:	Banyasz, Akos, Ketola, Tiia-Maaria, Muñoz-Losa, Aurora, Rishi, Sunny, Adhikary, Amitava, Sevilla, Michael D, Martinez-Fernandez, Lara, Improta, Roberto, Markovitsi, Dimitra
Format:	Artikel
Sprache:	eng
Schlagworte:	Adenine - chemistry Chemical Sciences DNA - chemistry Electron Spin Resonance Spectroscopy Free Radicals - chemistry Hydroxyl Radical - chemistry or physical chemistry Photons Quantum Theory Spectrophotometry Theoretical and Ultraviolet Rays
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