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- W4200032660 abstract "Sunset yellow (FCF), a commonly used food additive, can brighten foods, but the improper amount of addition can also cause various diseases. Herein, the fluorescence sensor CDs-PTD for detecting FCF is synthesized by functionalizing carbon dots (CDs) with 3,4,9,10-pertetracarboxylic dianhydride (PTD). The prepared CDs-PTD shows excitation-independent fluorescence behavior with maximum fluorescence emission at 553 nm under 490 nm excitation and high quantum yields (21.4%). With the presence of FCF, the fluorescence of the sensor is quenched due to fluorescence resonance energy transfer (FRET). The CDs-PTD exhibits excellent selectivity and sensitivity toward FCF in the range of 0–180 × 10−6 m with a low detection limit of 106.8 × 10−9 m. In addition, the sensor is applied to the detection of FCF in beverage samples with recoveries ranging from 97% to 106%. And a portable CDs-PTD/agarose gel reagent strip is prepared for the assessment of FCF content within 15 min. The CDs-PTD can be an ideal sensor for detecting FCF in food, and provides a new idea for the detection of food additives." @default.
- W4200032660 created "2021-12-31" @default.
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- W4200032660 date "2021-12-19" @default.
- W4200032660 modified "2023-10-18" @default.
- W4200032660 title "Fluorescence Sensing Performance of Carbon Dots of Functionalization toward Sunset Yellow" @default.
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- W4200032660 doi "https://doi.org/10.1002/ppsc.202100207" @default.
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