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Report No.

Detection of the spin adduct produced from CYPMPO and water decomposition radicals

Oka, Toshitaka; Yamashita, Shinichi; Midorikawa, Masamichi*; Saiki, Seiichi; Muroya, Yusa*; Lin, M.; Kamibayashi, Masato*; Anzai, Kazunori*; Kudo, Hisaaki*; Katsumura, Yosuke

The oxygen radicals play a crucial role in biological oxidative damage. It is important to clarify behavior of hydroxyl and superoxide radicals, detection and quantification of these radicals are required. In present work, the reactivities of CYPMPO toward a hydrated electron and a hydroxyl radical utilizing a pulse radiolysis system are investigated, and compared with DMPO (5,5-Dimethyl-1-pyrroline N-oxide) results. The oxygen radicals produced by $$gamma$$-ray irradiation are also discussed.



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