Mild steel (MS) corrosion is a worldwide issue that greatly affects the industrial and natural environment. To extend the lifespan of appliances, the control of MS corrosion is necessary. To shield MS from corrosion, specifically from acidic conditions, one of the practical and finest approaches is the application of inhibitors. Triazole derivatives are eco-friendly corrosion inhibitors (CIs) having inconsequential toxicities, excellent inhibition efficiencies (IEs) against corrosion of MS, and extremely high cost-effectiveness. This critical review discusses the general effect of temperature, concentration, time after the application of CI, and type of acid on the IE of triazole derivatives. Further, the review provides an adequate amount of information about the features of excellent CIs; a summary of the reported properties of triazole-based inhibitors, CIs in industries, and current requirements of industries; and recommendations and implications for researchers to improve IE. Additionally, the review also illustrates the mechanisms of action and the IEs, which are evaluated from potentiodynamic polarization parameters, in various acidic media and concentrations of triazole inhibitors. By IE correlation with numerous concentrations and acidic conditions, this review is advantageous and helpful for synthetic chemists to expand the diversity and complexity of a class of triazole derivatives by synthesizing new triazole derivatives.

Fluorescent organic nanoparticle (FON)-based chemosensors are emerging as a valuable tool for the fast and accurate detection of metal ions in aqueous media. In this review, we highlight the recent developments in this field.

In world, many people struggle with viral, parasitic, bacterial, cancer, and other diseases. Therefore, numerous chemists seek to develop less toxic, more selective, and effective medicines. Most therapeutic medicines are based on inhibition of specific enzymes. Acridines are interesting heterocyclic structures that are much sought after targets attributed to their wide biological activities and feature to display potent enzymes inhibitory effects. Their approach of action is owing to DNA interaction and subsequent effects on the biological functions linked to DNA and associated enzymes. In this regards, we synthesized acridine analogous through 1,4-diazabicyclo[2.2.2]octane (DABCO)–polyethylene glycol-400 (PEG-400) mediated ionic liquid approach. DABCO–PEG-400-mediated IL was prepared through the DABCO alkylation using 1-bromopentane followed by mixing with PEG-400. The synthesized analogous were investigated as inhibitors of alkaline phosphatase, which is a nonspecific phosphomonoester hydrolase that catalyzes the hydrolysis of broad spectrum of organic monophosphates. Analogue viz. 3,3,6,6-tetramethyl-9-(4-nitrophenyl)-2,3,4,5,6,7,9,10-octahydroacridine-1,8-dione was found to be potent alkaline phosphatase inhibitor. GRAPHICAL ABSTRACT