This research aimed to investigate the protective effect of p-CA, a derivative phenolic acid, against toluene-induced oxidative damage. A total 32 Sprague-Dawley male rats, 8 in each group, were used. 4 groups formed as control, toluene, p-CA and toluene+p-CA. Animals control toluene group given 0.9 % NaCl, mg kg-1 b.w 100 orally for 21 days, respectively. The animals toluene+p-CA received 3 da...

Background: Herbal Essential Oils (EOs) are natural, volatile, and complex compounds that are defined by a strong odor. This study was conducted to investigate and compare antioxidant and antifungal properties of EO extracted from flowers and leaves of Origanum vulgare ssp. gracile from Iran. Methods: EOs of leaves and flowers of O. vulgare ssp. gracile were extracted using a modified Cleven...

In this research, Ag/ZnO nanocomposites were prepared and characterized by transition electron microscopy (TEM), the energy dispersive X-ray spectrum (EDS) and X-ray diffraction patterns (XRD). These nanocomposites were used as catalysts for the oxidation of toluene to benzaldehyde and benzoic acid with hydrogen peroxide (H2O2) and tert-butylhydroperoxide (TBHP) as oxidizing agent in the liquid...

The study analyzed the exposure factors that may lead to neuropsychological symptoms among 92 workers who were exposed to xylene and toluene and 100 workers who were not exposed to the solvents. The airborne concentration of xylene and toluene was evaluated with personal passive badges. The levels of methyl hippuric acid and hippuric acid in urine were assessed, and interviews were performed to...

The development of tolerance in Pseudomonas putida DOT-T1 to toluene and related highly toxic compounds involves short- and long-term responses. The short-term response is based on an increase in the rigidity of the cell membrane by rapid transformation of the fatty acid cis-9,10-methylene hexadecanoic acid (C17:cyclopropane) to unsaturated 9-cis-hexadecenoic acid (C16:1,9 cis) and subsequent t...

The dimeric enzyme creatine kinase (EC 2.7.3.2) from rabbit muscle has a reactive thiol group on each subunit, modification of which by iodoacetate or iodoacetamide leads to inactivation of the enzyme (Watts, 1973). It had been previously shown (Price & Hunter, 1976) that when the enzyme is treated with iodoacetate or some other reagents in the presence of the 'transition-state analogue' comple...

The thermal cis-to-trans isomerisation process has been studied for a series of para-, ortho- and polyhydroxy-substituted azobenzenes in different solvents. The kinetics of the thermal back reaction for the p-hydroxy-substituted azobenzenes depend strongly on the nature of the solvent used, with relaxation times ranging from 200-300 milliseconds in ethanol to half an hour in toluene. Otherwise,...

polypyrrole is one of the most useful conductive polymers, but green synthesis of this polymer has been restricted until now. the objective of the present paper is green synthesis of nano polypyrrole (ppy) by oxidative polymerization using urea-hydrogen peroxide. it was found that conductivity and morphology of polypyrrole are highly dependent on the reaction conditions such as the molar ratio ...