AIMS Free radicals may not only affect the denatured cell structure but also reduce protein levels. These mechanisms are critical and need to be clarified as a high priority. Because of the limited information on this subject, in this respect, the effects on protein levels of liver tissue in rats fed hot-smoked rainbow trout (Oncorhynchus mykiss) were investigated. METHODS Four diets containi...

The widespread occurrence of fluoroquinolone antibiotics, such as ofloxacin (OFX), in natural water and soil has received increasing attention terms their potentially dangerous impacts on public health ecosystems. In this study, the kinetics mechanisms OFX degradation by heat-activated persulfate (HAP) was investigated. Results showed that could be achieved effectively fitted well with pseudo-f...

free radicals are produced continuously in the cells as part of normal cellular function, however excess production might play a role in pathophysiology of many disease conditions, including cancer, alzheimer's disease, atherosclerosis and some of the drug-induced toxicity. many basic research studies and observational epidemiologic studies in human suggest that antioxidants can prevent oxidati...

Fenton (H2O2/Fe2+) system is a simple and efficient advanced oxidation technology (AOT) for the treatment of organic micropollutants in water soil. However, it suffers from some drawbacks including high amount catalyst, acid pH requirement, sludge formation slow regeneration Fe2+ ions. If these are surmounted, can be best choice AOT removal persistent organics In this work, was attempted to rep...

In this study, spent malt rootlet-derived biochar was modified by a friendly eco-method using low temperature (100 °C) and dilute acid, base, or water. The modification significantly enhanced the surface area from 100 to 308–428 m2g?1 changed morphology carbon phase. addition, mineral’s percentage zero-point charge were affected. Among examined materials, acid-treated exhibited higher degradati...

the reaction of ch3o2 radicals with acetaldehyde on the solid surface of nh4no3 has been studied in a flow capillary reactor at low pressure and room temperature. the experiments were performed using epr spectrometer combined with the kinetic method of radicals freezing. peroxy radicals revealed an oscillation complex behavior during the process regarding to the phenomenon of radicals multiplic...

In most radicals the singly occupied molecular orbital (SOMO) is the highest-energy occupied molecular orbital (HOMO); however, in a small number of reported compounds this is not the case. In the present work we expand significantly the scope of this phenomenon, known as SOMO-HOMO energy-level conversion, by showing that it occurs in virtually any distonic radical anion that contains a suffici...

Kinetics of radical oxidation of 4-mercapto-2-nitrobenzoic acid was investigated in the presence of hydrogen peroxide and iron(II) sulfate, i.e. SL hydroxyl radicals generating system. Initial velocities of radical reaction were established by numerization of the course of kinetic dependences. The value of initial reaction velocity was used as a criterion for evaluation of efficacy of ethylened...