Fluorescent Schiff base sensors as a versatile tool for metal ion detection: strategies, mechanistic insights, and applications

Abstract

This review discusses the advances in fluorescent Schiff base sensors for metal ion detection with a focus on the strategies, mechanistic insights, and applications.

Recent Advances and Mechanistic Insights into Antibacterial Activity, Antibiofilm Activity, and Cytotoxicity of Silver Nanoparticles

“…Earlier, traditional physical methods, including pyrolysis and spark discharging, were used for the synthesis of AgNPs . The advantages of physical methods are speed, use of radiations as reducing agents, and no use of hazardous chemicals, but the disadvantages are low yield, high energy consumption, solvent contamination, and dearth of uniform size distribution. − Chemical methods use water or organic solvents to synthesize the AgNPs. − This process usually involves metal precursors, reducing agents, and stabilizing/capping agents. , The shape, size, and yield of the AgNPs can be controlled by changing or modifying the reducing and stabilizing agents. Typically, sodium borohydride (NaBH 4 ), glucose, ascorbic acid, hydrazine, ethylene glycol (EG), and sodium citrate are used for reducing Ag + ions. − NaBH 4 is a strong reductant for producing fined and monodispersed silver nanoparticles.…”

Synthesis and Potentiometric Sensor Applications of a Hydrazone Derivative Molecule: Fast and Selective Determination of Cobalt(II) Ions

“…The determination of metal ions is an important research topic. Recently, fluorescence‐based sensors have been used for metal ion detection due to their good selectivity, sensitivity and fast response times [14,15] . However, there are methods in the literature that have been known for many years and are quite successful.…”

“…Recently, fluorescence-based sensors have been used for metal ion detection due to their good selectivity, sensitivity and fast response times. [14,15] However, there are methods in the literature that have been known for many years and are quite successful. Potentiometry-based methods are one of the most important devices in electroanalytical chemistry, and they offer important advantages including high selectivity, ease of preparation and use, low cost, wide linear concentration range, low detection limit, short response time and long lifetime.…”

Synthesis, “turn-on” fluorescence signals towards Zn2+ and Hg2+ and monoamine oxidase A inhibitory activity using a molecular docking approach of morpholine analogue Schiff base linked organosilanes

“…Today's researchers are highly focused on developing fluorescent sensors as a potential option for detection of metal ions, both in the environment and in living systems. [1][2][3][4] Recently, multiple analyte sensing with a single chemosensor has been gaining popularity because of its quicker applicability and cost savings. 5 Both zinc and mercury, being elements of the same group having almost identical chemical properties, play different roles in biological systems.…”