[EN] EPR METHOD FOR FREE RADICALS DETECTION USING AT LEAST TWO DIFFERENT SPIN TRAPPING COMPOUNDS<br/>[FR] PROCÉDÉ RPE POUR LA DÉTECTION DE RADICAUX LIBRES UTILISANT AU MOINS DEUX COMPOSÉS DE PIÉGEAGE DE SPIN DIFFÉRENTS
申请人:UNIV CATHOLIQUE LOUVAIN
公开号:WO2013045429A1
公开(公告)日:2013-04-04
The present invention provides a method, a kit and their use for free radicals detection and identification in a sample. The method comprising the steps of: reacting said sample with a spin trapping composition, to produce spin adducts of said spin trapping composition and free radicals and detecting said spin adducts by electron paramagnetic resonance (EPR) spectroscopy or electron spin resonance (ESR), thereby obtaining an EPR signal. The method is characterized in that said spin trapping composition comprises at least two different spin trapping compounds.
Effect of the Phosphoryl Substituent in the Linear Nitrone on the Spin Trapping of Superoxide Radical and the Stability of the Superoxide Adduct: Combined Experimental and Theoretical Studies
theoretical analyses using density functional theory (DFT) calculations at the B3LYP/6-31+G(d,p)//B3LYP/6-31G(d) level were performed on spin-trapping reactions of superoxide radical with 4-HOPPN and PBN and three possible decay routes for their corresponding superoxide adducts. The comparative calculations on the spin-trapping reactions with superoxide radical predicted that both spintraps share an identical