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A new intramolecular charge transfer (ICT) based colorimetric and ratiometric fluorescent chemodosimeter for the detection of Hg2+ has been rationally designed and developed. The probe operates via the specific mercury-promoted… Click to show full abstract
A new intramolecular charge transfer (ICT) based colorimetric and ratiometric fluorescent chemodosimeter for the detection of Hg2+ has been rationally designed and developed. The probe operates via the specific mercury-promoted desulfurization reaction of thiocoumarin to coumarin and exhibits high selectivity and sensitivity in almost pure aqueous solution (containing only 1% DMSO) with a low detection limit of 1.85 ppb. Furthermore, the probe was successfully used for the fluorescence imaging of Hg2+ in live cells.
Journal Title: New Journal of Chemistry
Year Published: 2018
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