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A turn-on TADF chemosensor for sulfite with a microsecond-scale luminescence lifetime

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Indexed by:Journal Papers

Date of Publication:2021-04-12

Journal:CHEMICAL COMMUNICATIONS

Volume:56

Issue:72

Page Number:10549-10551

ISSN No.:1359-7345

Abstract:A reaction-based luminescence chemosensor was synthesized for sulfite detection based on a fluorescein derivative with thermally activated delayed fluorescence (TADF). The chemosensor exhibited a fluorescence turn-on effect on sulfite with good sensitivity and selectivity. Importantly, utilizing the long luminescence lifetime of the TADF compound, the chemosensor realized photoluminescence lifetime imaging for sulfite in living cells with the luminescence lifetime distribution mainly around 14 mu s.

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