A phenylboric acid functionalized carbon dot (2-FPBA-CD) for rapid fluorescent sensing of glucose in blood was synthesized by simply mixing N, S-doped carbon dots (CDs) with phenylboric acid at room temperature. At pH 7.4, the response of 2-FPBA-CD to glucose could reach equilibrium in a very short time (10 min), with a wide responsive linear range of 19.70 µM to 2.54 mM, which can be applied to the detection of glucose in serum. The mechanism studies showed that the layered carbon film of 2-FPBA-CD aggregated after adding glucose, thereby leading to the fluorescence quenching of 2-FPBA-CD.

Graphical abstract

中文翻译：

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使用苯基硼酸功能化 N、S 掺杂碳点进行快速荧光血糖传感

通过在室温下简单地将 N、S 掺杂碳点 (CD) 与苯硼酸混合，合成了用于快速荧光传感血液中葡萄糖的苯硼酸功能化碳点 (2-FPBA-CD)。在pH 7.4时，2-FPBA-CD对葡萄糖的响应可以在很短的时间（10 min）内达到平衡，响应线性范围较宽，为19.70 µM至2.54 mM，可应用于食品中葡萄糖的检测。血清。机理研究表明，加入葡萄糖后，2-FPBA-CD的层状碳膜发生聚集，从而导致2-FPBA-CD的荧光猝灭。

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