Fluorine-Nitrogen-Codoped Carbon Dots as Fluorescent Switch Probes for Selective Fe(III) and Ascorbic Acid Sensing in Living Cells.

ABSTRACT: High-quality fluorescent probes based on carbon dots (CDs) have promising applications in many fields owing to their good stability, low toxicity, high quantum yield, and low raw material price. The fluorine- and nitrogen-doped fluorescent CDs (NFCDs) with blue fluorescence was successfully synthesized using 3-aminophenol and 2,4-difluorobenzoic acid as the raw material by the hydrothermal method. The NFCDs as probe can be used to directly and indirectly detect Fe³⁺ (detection range: 0.1-150 μM and detection limit: 0.14 μM) and ascorbic acid (AA) (detection range: 10-80 μM and detection limit: 0.11 μM). The NFCDs-based probe shows exceptional selectivity and strong anti-interference for Fe³⁺ and ascorbic acid (AA). In addition, we examined the response of NFCDs to Fe<

SUBMITTER: Ye S 

PROVIDER: S-EPMC9572543 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature