A fluorescent probe, with coumarin as the fluorophore, is capable of detecting cysteine over other biothiols, such as homocysteine and glutathione.

A simple fluorescent probe, with a latent coumarin fluorophore and an acrylate recognition site, is able to selectively and quantificationally detect cysteine over other biothiols, such as homocysteine and glutathione.

A fluorescent probe, with simplicity of structure and convenience of synthesis, is capable of detecting cysteine over other biothiols, such as homocysteine and glutathione. The detection limit of 60 nM and 190-fold increase in fluorescence intensity offer advantage for detection of Cys in biological systems. Furthermore, the probe 1 could be applied in bioimaging.

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