A coumarin-quinolinium-based fluorescent probe for ratiometric sensing of sulfite in living cells?

Organic & Biomolecular Chemistry Pub Date: 2014-05-02 DOI: 10.1039/C4OB00132J

Abstract

Based on a novel coumarin-quinolinium platform, probe 2 was rationally designed and synthesized as a novel ratiometric fluorescent sensor for sulfite anions. The probe exhibited a wide dynamic concentration range for sulfite anions in a PBS buffer (containing 1 mg mL?1 BSA). More importantly, the probe was suitable for ratiometric fluorescence imaging in living cells with high sensitivity, favorable selectivity, and minimal cytotoxicity.

Graphical abstract: A coumarin-quinolinium-based fluorescent probe for ratiometric sensing of sulfite in living cells
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