For adsorbents used in water remediation, the long-standing contradictions between selectivity and multiple adsorbability, and affinity and recyclability, have led to difficulties in applications towards environmental crises. In article number 1500289, Q. Yuan and co-workers create a versatile scavenger that cleverly avoids such contradictions by integrating the advantages of multiple functiona...

An oxygen scavenging film based on a catalytic system with palladium (CSP) was combined modified atmosphere (MA) packaging to extend the mould free shelf life (MFSL) of bakery products. Par-baked buns, toast bread and gluten-free inoculated Aspergillus niger spores were packed in normal (NA) under MA (with 2 vol.-% O ) or without CSP. Mould growth detected after 2–3 days all products NA as well...

This study explores the effects of initial Cr(VI) concentration, wavelength, hole-scavenger (absence and presence salicylic acid), oxygen conditions (aeration by air, nitrogen gas, mechanical stir only) on photocatalytic reduction hexavalent chromium over titanium dioxide photocatalyst chromic species distribution after photocatalysis. The experimental results show existence strong interactions...

This work analyzes the role of natural groundwater, as well effect HCO3−, Ca2+, Mg2+, K+, SO42- and Cl− concentrations, upon photocatalytic nitrate reduction using ilmenite catalyst oxalic acid hole scavenger. The removal selectivity towards N2 are significantly limited compared to previous experiments ultrapure water matrix. Calcium (Ca2+), bicarbonate (HCO3−) pH claimed major controlling fact...

Two environmentally safe iron compounds (synthetic magnetite and ferrous gluconate) have been evaluated as sulphide scavengers at temperature conditions of 25 °C, 35 °C, 45 °C and 55 °C at pH of 12 in a sulphide-contaminated drilling mud. The ferrous complex was found to be a better scavenger than synthetic magnetite. It exhibited 100 % scavenging efficiency within the first 40 minutes of agita...

To identify which cells generate superoxide, inflamed human mucosa was tested with nitro-blue tetrazolium as a probe, because it is reduced by strong reducing agents to form insoluble blue formazan, which then precipitates in tissues. Biopsy specimens from control subjects and patients with ulcerative colitis were studied. The specimens were organ cultured with bubbling air or nitrogen, and inh...

La loi de bioéthique a été révisée en 2021 pour tenir compte des avancées sociétales et médicales, notamment matière d’aide médicale à la procréation (AMP). Un objectifs était limiter les recours l’AMP qui se font dehors du cadre légal médical français. Comparativement d’autres pays européens,...