In an acidic environment, the corrosion phenomenon deteriorates mild steel, hence the organic corrosion inhibitors could figure out this problem. This paper gives a comprehensive review details an investigation on the protection of mild steel in acidic media by adding 5-Chloroisatin derivatives as organic inhibitors at different concentrations analyzed by weight loss, electrochemical impedance spectroscopy, Tafel polarization and scanning electron microscope (SEM). The main results have shown that the 1-allyl-5-chloro-indoline-2,3-dione (TZACI), 5-chloro-1-octylindoline-2,3-dione (TZCOI) and 5-chloro-1-(2-(dimethylamino) ethyl) indoline-2,3-dione (TZCDI) are excellent corrosion inhibitors of mild steel in acid medium with an efficiency higher than 90%. The inhibitors adsorptions on the mild steel surface follow the Langmuir adsorption isotherm.
Lipid peroxidation is a key manifestation of oxidative stress and an important mechanism of cellular injury. Excessive production of reactive oxygen species promotes membrane lipid oxidation and the accumulation of toxic lipid peroxidation products. Chronic inflammation further amplifies oxidative stress, creating a self-perpetuating cycle that promotes platelet activation, adhesion, and aggregation. Together, these processes represent closely interconnected pathogenic mechanisms contributing to endothelial dysfunction and the progression of chronic inflammatory diseases.
Mixed micellar systems have attracted considerable attention because of their unique solution properties and broad practical applications. This study investigates the micellization behavior of binary mixtures composed of two types of anionic surfactants: sodium undecylcarboxylate and sodium alkyl sulfates in aqueous media. The critical micelle concentrations of the mixed surfactant systems were determined by conductometric and tensiometric methods. The aggregation characteristics of the mixed anionic surfactant systems were calculated using Rubingh's model. To the best of our knowledge, these parameters have not previously been reported for this particular mixed micellar system. The excess free energy of micellization was evaluated and correlated with the surfactant interaction parameter in mixed micelles. The obtained results were analyzed in terms of synergistic interactions within the systems, and the influence of the chemical structure of the polar (charged) head group as well as the hydrocarbon chain length of the anionic surfactants on the self-assembly processes in mixed systems was discussed.
This study presents a computational evaluation of 140 flavonoid derivatives (chrysin, hesperetin, apigenin, naringenin, and quercetin) for agrochemical potential. A three-tier screening approach was applied: physicochemical profiling confirmed compliance with Lipinski’s Rule of Five and indicated strong molluscicidal and larvicidal potential; molecular docking revealed multi-target activity, with chrysin, naringenin, and hesperetin as dominant scaffolds, while apigenin-IIa showed consistent herbicidal activity; ADMET analysis identified several non-toxic, stable scaffolds. Key potential agrochemical candidates, including Chrysin Ia, Naringenin IIIa/b, Apigenin IIa, and Quercetin V, were prioritized. Sixteen active derivatives were selected for SAR studies, and molecular dynamics simulations confirmed stable binding interactions and favourable energetics.
This study investigates wet scrubbing of diesel exhaust gases for NOx removal, as NOx is one of the major pollutants associated with diesel engine operation. Chemical absorption of NOx was achieved through the interaction of exhaust gases with aqueous absorbent solutions (KMnO₄ + HNO₃, KMnO₄ + H₂SO₃, CO(NH₂)₂ + SnCl₂, and water) under bubbling conditions. The dependence of NOx neutralization efficiency on the flow velocity of treated exhaust gases was established. The proposed relationship, along with the methodology developed on its basis, enables the evaluation of the performance of chemical absorbents in the wet neutralization of NOx from diesel exhaust gases, taking into account hydrodynamic and gas–liquid interaction effects.
