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Generation of free radicals by photoexcitation of pheophorbide a, haematoporphyrin and protoporphyrin

✍ Scribed by R.F. Haseloff; B. Ebert; B. Roeder

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 575 KB
Volume: 3
Category: Article
ISSN: 1011-1344
DOI: 10.1016/1011-1344(89)80082-x

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✦ Synopsis

An investigation of the production of radical species by photoexcitation pheophorbide alpha, haematoporphyrin and protoporphyrin was performed. In an aqueous solution containing different amounts of ethanol, the superoxide radical was detected by the spin trapping technique. In addition, secondary radicals were observed. The generation of oxygen radicals was found to dominate in solutions with a low ethanol content.

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