A benzimidazole-derived fluorescent chemosensor for Cu(ii)-selective turn-off and Zn(ii)-selective ratiometric turn-on detection in aqueous solutions

Abstract

2,6-Dibenzoimidazolyl-4-methoxyphenol conjugate (BBMP) was designed and synthesized to develop a novel fluorescent chemosensor for Cu2+ and Zn2+. The BBMP showed an excited-state intramolecular proton transfer (ESIPT) fluorescence emission at 542...

Copper-guided tuning of supramolecular nano-assembly in pseudopeptide-based soft bioinspired materials

“…A standard analyte addition method was used and experimental measurements were collected 3 times to estimate recovery percentage and relative standard deviation (RSD). 55 Simulated real samples containing Cu( ii ) ions were generated by introducing the appropriate quantities of Cu( ii ) ions into samples collected from various sources. These prepared samples underwent processing using a solution of probes 1 and 2 , followed by analysis through fluorescence.…”

Development of multi-analyte responsive sensors: optical discrimination of arsenite and arsenate ions, ratiometric detection of arsenite, and application in food and water samples

“…18–23 Most of these chemosensors were designed for monitoring the environment-polluting ions with precise detection and quantification. 20,24–30…”

Adaptable Biomolecule-Interactive Dual Colorimetric Chemosensor for Cu2+ and Pd2+: Insight from Crystal Structure, Photophysical Investigations, Real-Time Sampling, and Molecular Logic Circuits

“…Therefore, real-time and on-site analysis is not a good fit for these methodologies. Meanwhile, due to their ease of use, sensitivity, selectivity, quick reaction, cost-effectiveness, and real-time monitoring, optic sensor strategies, i.e., techniques based on optical spectroscopy, have fueled and drawn considerable interest. − Particularly, because of their benefits for biological imaging, the development of “turn-on” and ratiometric fluorescence sensors is of utmost relevance. − These sensors could also function as colorimetric sensors for desired analytes with “naked-eye” recognition without the aid of any apparatus, and recently, researchers’ interest in these easy-to-implement-and-utilize naked-eye sensing techniques has increased significantly. − Numerous colorimetric sensor systems based on derivatives of rhodamine, acridine, naphthalimide, coumarin, BODIPY, and fluorescein have been developed for the detection of Cu 2+ or Pd 2+ ions . But the employment of single probes to detect the two metal ions concurrently is rarely documented. , Cu 2+ and Pd 2+ ions can, in fact, coexist in the same sample like in heterogeneous catalysis systems utilizing palladium/copper cocatalysts .…”