A Green Synthesised B/nZVCu-M On-Off Fluorescence Sensor for Dopamine Detection and its Reusability.

The real-time and selective detection of dopamine (DA) in complex biological systems remains a critical challenge due to its low physiological concentrations and interference from structurally similar biomolecules such as ascorbic acid and uric acid. Traditional analytical techniques often fall short in terms of specificity, cost-effectiveness, and ease of deployment in biological matrices. To address this gap, we developed a highly selective fluorescent nanosensor based on bentonite-supported Cu-based bimetallic nanoparticles (B/nZVCu-Ni/Ag), synthesized via a green route using Lawsonia inermis extract.

Effect of Synthesis Methods and Conditions on Properties and Applications of Carbon Dots for the Detection of Potential Water Contaminants: A Review.

The worldwide pollution of water bodies by potential contaminants such as heavy metals, dyes, and pesticides etc. have severely affected the entire eco-system due to their toxic mobility and tough degradation in water. Consequently, there is a requirement to develop cost-competitive and easily handleable sensing materials which can detect targets sensitively and with selectivity.

Biosynthesis of silver nanospheres, kinetic profiling and their application in the optical sensing of mercury and chlorite ions in aqueous solutions.

Pollution of water linked to microbial decontamination and extensive use of sodium chlorite (NaClO) as a disinfectant, especially in the face of the current COVID-19 situation, is a serious water pollution issue that needs to be addressed. In this context, an environmentally friendly and cost-effective method has been developed for the biomimetic synthesis of Ag nanospheres (Ag NSs) using aqueous extract of Piper nigrum for the detection of chlorite (ClO) and mercury (Hg) ions. The strong antioxidant properties of the biomolecules present in the Piper nigrum extract reduce silver ions (Ag) to Ag.

Solvothermal assisted phosphate functionalized graphitic carbon nitride quantum dots for optical sensing of Fe ions and its thermodynamic aspects.

A facile method has been proposed for the determination of Ferrous (Fe(II)) and Ferric (Fe(III)) ions using phosphate functionalized graphitic carbon nitride quantum dots (Ph-g-CNQDs) in an aqueous medium. The easy solvothermal procedure using oleic acid as the solvent yielded the Ph-g-CNQDs in less than 30 min. The communication among the Fe(II) and Fe(III) with Ph-g-CNQDs caused quenching of the blue Ph-g-CNQDs fluorescence signals.