E
Edward J. Land
Researcher at Keele University
Publications - 71
Citations - 3182
Edward J. Land is an academic researcher from Keele University. The author has contributed to research in topics: Radiolysis & Tyrosinase. The author has an hindex of 28, co-authored 71 publications receiving 3042 citations. Previous affiliations of Edward J. Land include Jagiellonian University & Science and Technology Facilities Council.
Papers
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Journal ArticleDOI
Evidence of the Indirect Formation of the Catecholic Intermediate Substrate Responsible for the Autoactivation Kinetics of Tyrosinase
Christopher J. Cooksey,Peter J. Garratt,Edward J. Land,Stan Pavel,Christopher A. Ramsden,Patrick A. Riley,Nico P.M. Smit +6 more
TL;DR: The formation of the cyclic product accounts for the indefinite lag when N,N-dimethyltyramine is used as the substrate for tyrosinase in the absence of a dihydric phenol cofactor, and it is shown that the indoliumolate product is formed by cyclization of theortho-quinone, presented by pulse radiolysis studies.
Journal ArticleDOI
Carotenoids Enhance Vitamin E Antioxidant Efficiency
Journal ArticleDOI
One-Electron Reactions in Biochemical Systems As Studied by Pulse Radiolysis III. UBIQUINONE
Edward J. Land,Albert J. Swallow +1 more
TL;DR: The maximum possible bimolecular rate of electron transfer to ubiquinone (coenzyme Q with six isoprenoid units in the side chain) is likely to be that from solvated electrons, now determined by pulse radiolysis to be 1.7 x 1010 m-1 sec-1.
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Laser intensity and the comparative method for determination of triplet quantum yields
TL;DR: In this paper, the triplet quantum yield oT by laser flash absorption spectroscopy was derived for the case of triplet triplet oT with laser intensity and actionometry of a laser pulse.
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Tyrosinase autoactivation and the chemistry of ortho-quinone amines.
TL;DR: Using a combination of enzyme oximetry, pulse radiolysis, and chemical oxidation, the study of structurally modified dopaquinones provides firm evidence of nonenzymatic catechol formation during tyrosinase oxidation of phenols and reveals significant differences in their modes of reaction.