AIE-active Schiff base compounds as fluorescent probe for the highly sensitive and selective detection of Al3+ ions

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

“…3.1.3 Al 3+ sensor 96,97,[211][212][213][214][215][216] . Aluminum is the third most abundant element (8.3%) in the earth crust after oxygen and silicon.…”

“…18, Table 2). 97 The free sensor 30 was weakly fluorescent. With the addition of Al 3+ , the fluorescence spectrum of sensor 30 displayed an increase in emission intensity at 521 nm (l ex = 334 nm) and a good linear relationship (0-1.8 Â 10 À5 M).…”

Schiff Base Aggregation-Induced Emission Luminogens for Sensing Applications: A Review

“…Excess Al 3+ can affect the lung system and can cause serious health hazards such as Alzheimer’s and Parkinson’s diseases, kidney failure, and osteomalacia. It is meaningful to find elementary, rapid, sensitive, and selective methods to detect excess Al 3+ in environmental and biological systems. − …”

“…The combination of recognition groups like phenol hydroxyl O, aldehyde O, and imine N in L1 with Al 3+ forbids the PET process in L1, which results in the emission enhancement. AIE Schiff base probe L1 shows application prospects in the detection of Al 3+ …”

An Acylhydrazone-Based Fluorescent Sensor for Sequential Recognition of Al3+ and H2PO4−

“…The traditional analytical methods reported for the analysis of cations and anions, such as ICP-AES, AAS, and electrochemical methods, have been largely restricted due to their expensive instruments, complicated procedures, and the need for highly trained operators [13][14][15]. In contrast, fluorescence methods have shown the advantages of costeffectiveness, simplicity, easy operation, and high sensitivity [16][17][18]. While numerous fluorescent chemosensors for a single analyte have been reported, fluorescent chemosensors that allow the sequential sensing of multiple analytes with great selectivity and sensitivity are still needed [19][20][21] because they are more cost-effective, recyclable and practical [22][23][24].…”