A new pyrene-based aggregation induced ratiometric emission probe for selective detections of trivalent metal ions and its living cell application

Pyrene-Based AIE Active Materials for Bioimaging and Theranostics Applications

“…The one-pot synthesized pyrene-based Schiff base derivatives C29 – C32 (see Figure 16 c–e; FBP , PCS1 , PCS2 and PT2 are the individual representations in their original reports) were reported in metal ions sensing and AIE-based cellular imaging studies [ 98 , 99 , 100 ]. Among them, the C29 (detect Fe 3+ , Al 3+ and Cr 3+ ions) displayed a blue emissive cell lines in the absence of metal ions due to the AIE effect [ 98 ]. However, this report lacked discussions on the AIE-based bioimaging.…”

Recent Advances in AIEgens for Metal Ion Biosensing and Bioimaging

“…The acidic form of the probe TPE-4CO 2 H exhibited better cell permeability and could sense the metal ions inside cells. Probes with pyrene structure were also reported to detect Al 3+ , Fe 3+ , and Cr 3+ [100][101][102]. In one of such examples, monomeric pyrene PCS1 and dimeric PCS2 (Figure 10a) displayed AIE characteristic owing to the inhibition of PET/twisted intramolecular charge transfer (TICT) process in aggregates [102].…”

Colorimetric Metal Sensing of Fe3+ and Cr3+ and Photophysical and Electrochemical Studies Based on Benzo[4,5]thiazolo[3,2-a]pyrimidine-3-carboxylate and Its Derivatives

“…20 A rhodamine-based fluorescent enhancement chemosensor for the detection of Cr 3+ in aqueous media was reported by Zhou et al 21 Gupta et al 22 have reported rhodamine-derived highly sensitive and selective colorimetric and off−on optical chemosensors for Cr 3+ . A novel dual-switch fluorescent probe for Cr 3+ ions based on photoinduced electron transfer (PET)−Forster resonance energy transfer (FRET) processes was designed by Hu et al 23 A new pyrene-based aggregation-induced ratiometric emission probe for selective detection of trivalent metal ions was reported by Singh et al 24 A new naked eye and fluorescent probe for the detection of Cr 3+ and Fe 3+ ions was reported by Nayab et al 25 A novel Schiff base "off−on" colorimetric chemosensor for selective detection of Al 3+ , Cr 3+ , and Fe 3+ was developed by Borase et al 26 Solid-state emission-based benzothiazole−enamide−BF 2 complexes were developed by Liu et al 27 In the current work, benzothiazolopyrimidine carboxylate has been synthe-sized by the Biginelli-type reaction. The condensation reaction among aromatic aldehydes, ethyl acetoacetate, and 2-aminobenzothiazole used camphor sulfonic acid (CSA) as a catalyst.…”