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the kinetics and spectrum of the CH3O2 radical is presented, and a recommended spectrum , representing an average from selected recent studies, is proposed. Abstract Molecular modulation spectroscopy combined ...
). As a result, two major differences in ROS kinetics were found between the two systems: ( i ) the kinetics of • OH and (ii) the kinetics of hydrogen peroxide. In the NADH oxidase system, the interaction of hydrogen ...
with a computer. The rate constants for one-electron oxidation of flavonoids were determined by analysis of the build-up of the optical absorption of phenoxyl radical with time. The repair system was designed ...
. External calibration in positive mode was done using Protein Calibration Standard I (Bruker Daltonics, Germany). Results and discussion UV spectrum of [RuII(NO)(NO2)2(β-Pic)2( OH )] The UV/vis spectrum ...
ESR recording of ˙ OH radical generation by 50–70 nm ZnO NPs in aqueous solution. (a) Representative spectrum after 2 minutes irradiation, and (b) a time profile of ESR recording of the third peak ...
of poly C) (4). The absorption spectrum observed, therefore, should be assigned to the oxidative radical of poly C. The transient spectra of ssDNA and dsDNA radical cations were also observed under the same ...
of the DEPMPO/ OH adduct was detected ( spectrum 6A). Addition of 20 mM H2O2 to cell wall isolates resulted in the increase in signals of DEPMPO/ OH and DEPMPO/H adducts and a quinhydrone-derived radical ( spectrum ...
activity assay The antioxidant activity towards hydroxyl radicals ( OH –•) was detected as described with some modifications (Jin et al.1996): ( i ) One millilitre of 0.75 mol L–1 1,10-phenanthroline was mixed ...
derivatives The reactivities of BHZ and 4- OH -BHZ with AGAO were determined by a spectrophotometric titration, as described previously for PHZ (3, 14, 28). Typically, 5 μM AGAO in 500 μl of 50 mM HEPES buffer ...
to 10 μg/ml, as determined from the absorption spectrum and using a gravimetric procedure. Polyhydroxylated fullerene, referred to as C60( OH )n, was prepared as previously described (Zhao et al., 2004 ...
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