Antioxidant role of aminoguanidine submitted to the action of OH. and O2.- free radicals produced by gamma radiolysis of water ROLE ANTIOXYDANT DE L'AMINOGUANIDINE SOUMISE A L'ACTION DES RADICAUX LIBRES OH. ET O2.- PRODUITS PAR RADIOLYSE CONTINUE DE L'EAU

Lisfi, D. and Jore, D. and Bonnefont-Rousselot, D. and Delattre, J. and Belâaraj, A. and Gardès-Albert, M. (1997) Antioxidant role of aminoguanidine submitted to the action of OH. and O2.- free radicals produced by gamma radiolysis of water ROLE ANTIOXYDANT DE L'AMINOGUANIDINE SOUMISE A L'ACTION DES RADICAUX LIBRES OH. ET O2.- PRODUITS PAR RADIOLYSE CONTINUE DE L'EAU. Journal de Chimie Physique et de Physico-Chimie Biologique, 94 (2). pp. 283-288.

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Abstract

Aqueous aerated solutions of aminoguanidine (AMG) of concentrations AMG0 varying from 10-5 to 6 x 10-4 M have been submitted to the action of OH. and O2.- free radicals produced by gamma radiolysis of water. The evolution of the disappearance yield of AMG, G(-AMG), versus AMG concentration has been determined. The G-value obtained for the plateau of the dilution curve, is equal to 2.2 x 10-7 mol/J. Several hypothesis involving in addition to the action of OH. free radicals, these of O2.- free radicals and/or of hydrogen peroxyde are discussed.

Item Type:	Article
Uncontrolled Keywords:	aminoguanidine; antioxidant; free radical; water, conference paper; dilution curve; gamma radiation; peroxidation; radiolysis
Subjects:	Biochemistry, Genetics and Molecular Biology
Divisions:	SCIENTIFIC PRODUCTION > Biochemistry, Genetics and Molecular Biology
Depositing User:	Administrateur Eprints Administrateur Eprints
Last Modified:	31 Jan 2020 15:44
URI:	http://eprints.umi.ac.ma/id/eprint/1621

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