A novel fluorescent sensor, 1O, based on photochromic diarylethene with a 2-hydroxybenzhydrazide unit was designed and synthesized and can be used to recognize Al3+ in methanol (2.0 × 10−5 mol L−1).
A new fluorescent sensor 5 having fused imidazopyridine scaffold has been synthesized via cascade cyclization. It exhibits highly sensitive and selective detection of Fe3+ (‘turn-on’) and Hg2+ (‘turn-off’) in vitro and in HeLa cells.
A turn-on fluorescent sensor based on benzothiadiazole was constructed for simultaneous selective and visual detection of oxalyl chloride and phosgene.
A turn-on fluorescence sensor for the highly selective detection of Al3+ based on diarylethene and its application on test strips