A remarkable ratiometric fluorescent chemodosimeter for very rapid detection of hydrogen sulfide in the vapour phase and living cells†
Abstract
A ratiometric fluorescent and colorimetric probe for hydrogen sulfide has been developed by combining benzothiazole and the cyanine moiety. Due to its fast response and a large Stokes shift, it was used for sensitive and selective detection of hydrogen sulfide. Moreover, this probe detects SH− both in solid and vapor phases. Its potential for biological applications was confirmed by employing it for fluorescence imaging of SH− in living cells.