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A colorimetric fluorescent probe with fluorescence emission feature sensitive to SO2 derivatives, i.e. bisulfite (HSO3−) and sulfite (SO32−), was developed based on the HSO3−/SO32−-mediated nucleophilic addition reaction of the probe that. This probe exhibited SO32− sensing ability with detection limit down to 46 nM and desired selectivity over other reference anions and redox species. The preliminary...
A new type of flavone-based fluorescent probe (DMAF) capable of cysteine (Cys)/homocysteine (Hcy) sensing with high selectivity over other amino acids was developed. Such type of probe undergoes Cys/Hcy-mediated cyclization reaction with the involvement of its aldehyde group, which suppresses of the photoinduced electron transfer (PET) process of the probe molecule and consequently leads to the enhancement...
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