A triethylene glycol modified quinoline ester (PQTEG) is synthesised, which acts as a colorimetric sensor for Al3+ ions with a detection limit of 8 × 10−7 M in acetonitrile/water (95:5, v/v) solvent system. A visible colour ...

The phenomenon of nanoparticle-induced fluorescence lifetime enhancement of protonated 8-propoxyquinaldine thiol derivatives, covalently attached to the surface of gold (Au) nanoparticles, is reported. The observed lifetime ...