In this work, a novel AIE fluorescent probe, TPE-Py, containing an α,β-unsaturated ketone unit was developed for discriminating homocysteine over cysteine and glutathione.
A novel AIE-based fluorescent probe for the detection of trace amounts of nitrite and nitrate ions in water has been developed, which spontaneously detects nitrites (or nitrates) by a fluorescence “turn-off” method.