Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Christiane Ferradini"'
Publikováno v:
Chemical Physics Letters. 317:388-391
We have revisited earlier experiments on pulse radiolysis of aqueous solutions carried out at very high dose rates (intensities) up to 5×10 27 eV g −1 s −1 (∼10 12 Gy s −1 ). The ⋅ OH radical yield G ⋅ OH =4.6±0.25 molec./100 eV, derive
Publikováno v:
Research on Chemical Intermediates. 26:549-565
The available data describing the influence of pH on the radiolysis of liquid water are not current and still raise a certain number of problems. Especially for alkaline media, the question of the values of the primary free radical and molecular yiel
Publikováno v:
Canadian Journal of Chemistry. 77:1542-1575
Experiments showing that water is decomposed by the action of high-energy radiations date back to the first days of the discovery of radioactivity, a century ago. On the occasion of this anniversary, we have attempted to give a comprehensive account
Publikováno v:
Canadian Journal of Chemistry. 74:1-23
A review of our present knowledge concerning the solvation of excess electrons e−exc → e−solv produced by photoionization or radiolysis in polar media has been attempted. Various properties of the solvated electron (proposed solvation mechanism
Publikováno v:
Journal de Chimie Physique. 90:907-916
L'action des radicaux OH . ou N . 3 sur la N-acetylcysteine (RSH) a ete etudiee en solution aqueuse a pH 7 par radiolyse a l'etat stationnaire. Les rendements initiaux de disparition de RSH ont ete determines pour une gamme de concentration de RSH co
Publikováno v:
International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry. 40:551-558
Interactions of OH · and Br 2 radicals with glutathione (GSH) have been studied in buffered neutral aqueous solutions using γ and pulse radiolysis. In steady state radiolysis, initial G values of GSH loss and formation of GSSG have been measured fo
Publikováno v:
International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry. 38:1-5
The selective interactions of azide radicals with glutathione (GSH) have been quantitatively studied in buffered neutral aqueous solutions using γ and pulse radiolysis. The sulfur centered GS and GSSG⨪ radicals are produced in pulse and γ radioly
Autor:
E. Queinnec, Monique Gardès-Albert, M. Goyffon, Christiane Ferradini, Monique Vuillaume, F. Ducancel
Publikováno v:
Journal de Chimie Physique. 88:927-935
Les hemocyanines, metalloproteines a cuivre, ont pour fonction de transporter l’oxygene dissous dans l’hemolyniphe de nombreux Mollusques et Arthropodes. Elles presentent egalement des proprietes enzymatiques remarquables : peroxydasiques et cata
Autor:
M Gardès-Albert, Jacqueline Caillet, Z. Abedinzadeh, J. Langlet, Jacqueline Bergès, Christiane Ferradini
Publikováno v:
Journal de Chimie Physique. 88:1003-1007
La reaction du glutathion (GSH) avec l’eau oxygenee, en solution aqueuse a pH 7, et en l’absence d’enzyme, a ete caracterisee par la formation initiale d’un complexe [GSH-H2 O2 ] dont la constante d’equilibre est egale a 1950 ± 50. Des cal
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology. 1041:153-159
In order to determine the reactivity on hemocyanin from Androctonus australis, the reaction of superoxide anion has been investigated using pulse radiolysis. The kinetics of O2− decays have been studied in aqueous buffered media at various basic pH