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ENZYMATIC GENERATION OF ELECTRONICALLY EXCITED STATES BY ELECTRON TRANSFER
Author(s) -
Villablanca Miguel,
Cilento Giuseppe
Publication year - 1985
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1985.tb01615.x
Subject(s) - excited state , dioxetane , electron transfer , photochemistry , chemistry , catechol , peroxidase , fluorescence , energy transfer , chemiluminescence , enzyme , atomic physics , biochemistry , chemical physics , organic chemistry , optics , physics
Abstract— The catechol oxidase promoted oxidation of catechols produces electronically excited states readily detected by chlorophyll sensitized fluorescence. Both the chemiexcitation step and the transfer step are efficient. The use of chlorophyll has confirmed that the peroxidase catalyzed oxidation of dihydroxyfumarate also generates electronically excited species. It is concluded that efficient enzymatic generation of electronic energy can occur not only through the dioxetane/dioxetanone route, but also via electron transfer processes.