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Fast fluorescent blood sugar sensing using phenylboronic acid functionalized N, S-doped carbon dots

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2024, 34(5), pp.1355-1366
  • DOI : 10.1007/s42823-024-00696-3
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : August 15, 2023
  • Accepted : January 29, 2024
  • Published : June 14, 2024

Wang Xiaoge 1 Fan Xiangze 1 Zhang Bowen 1 Zhan Mengke 1 Zhu Jinhua 1 Hu Weiping 1 Liu Xiuhua 1

1Henan University

Accredited

ABSTRACT

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.

Citation status

* References for papers published after 2023 are currently being built.