Dihydroquinazolinone based nanosensor for fluorimetric detection of Hg2+ ions: Application to environmental analysis

Captivating nano sensors for mercury detection: a promising approach for monitoring of toxic mercury in environmental samples

“…Moreover, these FONs were utilized for cell imaging, indicating their promising potential in biological sensing applications. 143 Fluorescent 2-(thiophen-2-yl)-2,3-dihydroquinazolin-4(1H)-one (TDHQ) derivative-based organic nanoparticles (TDHQNPs) were recently developed for mercury sensing by Saubai B. Wakshe et al 144 Under ideal conditions, uorescence studies showed a specic and sensitive response only to Hg(II) among the tested coexisting species, as conrmed by uorescence titration experiments. Due to electrostatic metal-ligand interactions, the interaction between TDHQNPs and Hg(II) led TDHQNPs to uoresce less, resulting in a LOD of 0.00329 mg mL −1 within the linear concentration range of 0 to 100 mg mL −1 .…”

Prospective Analytical Role of Sensors for Environmental Screening and Monitoring

“…The LOD was estimated to be 0.00329 μg/mL within concentration range varying from 0 to 100 μg/mL. Furthermore, fluorescence quenching results were used to develop an analytical technique for estimating Hg 2+ in real samples [71].…”