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PHOTOELECTROCHEMICAL STUDIES OF SOLVATED ELECTRON INTERACTIONS WITH BIOLOGICAL SYSTEMS
Author(s) -
Baldwin R. P.,
Perone S. P.
Publication year - 1977
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.1751-1097.1977.tb06893.x
Subject(s) - radiolysis , solvated electron , chemistry , scavenging , electrochemistry , redox , scavenger , electron , inorganic chemistry , aqueous solution , electrode , photochemistry , radical , antioxidant , physics , organic chemistry , quantum mechanics , biochemistry
— An approach employing hydrated electron photoemission from a mercury electrode and potentiostatic chronoamperometric monitoring of the associated electrochemical processes has been applied to the study of the hydrated electron scavenging reactions of simple biological molecules. The current‐voltage profiles of aqueous glutathione and triglycine solutions were measured following flash‐induced photoemission. The redox properties of the products of electron scavenging were characterized by comparison to similar current‐voltage measurements resulting from hydrated electron capture by nitrous oxide. The electrochemical behavior so determined was directly related to the particular scavenging process occurring with each scavenger and agreed generally with previous pulse radiolytic studies made on the same scavenging systems.