A turn-on TADF chemosensor for sulfite with a microsecond-scale luminescence lifetime
Huiyi Yin, Yingnan Wu, Xiaojun Peng, Fengling Song
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 μs.
Topics & Concepts
MicrosecondSulfiteLuminescencePhotochemistryFluorescenceTurn (biochemistry)ChemistryDerivative (finance)FluoresceinMaterials scienceOptoelectronicsInorganic chemistryOpticsPhysicsEconomicsFinancial economicsBiochemistrySulfur Compounds in BiologyMolecular Sensors and Ion DetectionSulfur-Based Synthesis Techniques