A turn-off fluorescent probe for the detection of Cu<sup>2+</sup>based on a tetraphenylethylene-functionalized salicylaldehyde Schiff-base
Hai-Fang Xie, Chang-Jin Yu, Ya-Li Huang, Xu Hong, Qi‐Long Zhang, Xiaohong Sun, Xing Feng, Carl Redshaw
Abstract
A tetraphenylethylene-functionalized salicylaldehyde Schiff-base fluorescent probe (<bold>TPE-An-Py</bold>) with aggregation-induced enhanced emission (AIEE) characteristics exhibited high sensitivity towards copper(<sc>ii</sc>) ions in aqueous media with a “turn-off” fluorescence mechanism; limit of detection is 2.36 × 10<sup>−7</sup>mol L<sup>−1</sup>.
Topics & Concepts
SalicylaldehydeTetraphenylethyleneSchiff baseFluorescenceTurn (biochemistry)PhotochemistryChemistryMaterials sciencePolymer chemistryAggregation-induced emissionOpticsPhysicsBiochemistryMolecular Sensors and Ion DetectionLuminescence and Fluorescent MaterialsAdvanced biosensing and bioanalysis techniques