Vanillinyl Schiff base (H2L), a nontoxic probe and a fluorescent sensor to Zn2+, LOD 0.018 μM is used for living cell imaging.
A 2-hydroxy-5-methyl-benzene-1,3-dicarboxaldehyde di-oxime based turn-on blue emission fluorescent probe was found to recognize both AsO2− and H2AsO4− in a purely aqueous medium in intra and extra-cellular conditions.
A reversible fluorescent probe L based on rhodamine 6G was synthesized for the optical detection of Fe3+ in water.