Juan A. Squella

TL;DR: The results indicate that nifurtimox and related compounds act as redox cyclers, whereas the most active in the series, the 5-nitroimidazole megazol essentially acts as thiol scavenger particularly for trypanothione, the cofactor for try panothione reductase, an essential enzyme in the detoxification process.

TL;DR: From the pH-dependence of the peak current it is possible to affirm that pH 2 is the better condition for the oxidative activity of gallate radicals showing that the antioxidant behaviour of these compounds are important in the stomach acid.

TL;DR: The formation of the nitro radical anion as the product of the one electron reduction of nitro compounds generates a series of important consequences passing from chemical to biological aspects as discussed by the authors.

TL;DR: In this paper, a glassy carbon electrode (GCE) with multi-walled carbon nanotubes (MWCNTs) using 1,3-dioxolane as a dispersant agent, resulting in a stable and reproducible electrochemical sensor was applied to study the food dyes tartrazine, sunset yellow and carmoisine.

TL;DR: In this paper, the antioxidant capacity of hydroxylated coumarins and hydroxybenzoic acids was evaluated against reactive oxygen species (ROS) using oxygen radical absorbance capacity-fluorescein (ORAC-FL), electron spin resonance (ESR) spin trapping, quenching of superoxide anion, cellular antioxidant activity (CAA), and a ferric reducing ability of plasma (FRAP assay).