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Enhanced fluorescence sensing of tetracycline with Ti2C quantum dots

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Abstract

Ti2C quantum dots (QDs) with rich surface functional groups have been synthesized using a hydrothermal method, and used to detect tetracycline (Tc) based on enhanced fluorescence. The interaction between the surface functional groups of Ti2C QDs and Tc enhanced the fluorescence of Tc at 514 nm, which is used to detect Tc quickly and accurately. Under optimal conditions, the fluorescence intensity was linear to the concentration of Tc in the range of 50.0–30.0 μM, with a detection limit of 21.6 nM. Furthermore, the Tc-Ti2C QDs detection system was evaluated for detection of Tc in milk and artificial urine. This study demonstrates a new and simple strategy for Tc detection, which is important for food safety and human health.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 22175019 and 52002007), the Fundamental Research Funds for the Central Universities, and the Youth Teacher International Exchange & Growth Program (No. QNXM20220019).

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  1. Dejia Hu and ShangZuo Jiang contributed equally to this work.

Authors and Affiliations

  1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Dejia Hu, ShangZuo Jiang, Tianhao Xia, Danyang Xiao & Yan Li

  2. Key Lab Luminescence & Optical Information, Ministry Education, Beijing Jiao Tong University, Beijing, 100044, China

    Yanbing Hou

  3. Department of Chemistry and Biochemistry, University of California, Santa Cruz, California, 95064, USA

    Jin Zhong Zhang

  4. Department of Materials Science, “National University of Tainan”, Tainan, Taiwan, 700301, China

    Ying-Chih Pu

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  1. Dejia Hu
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Hu, D., Jiang, S., Xia, T. et al. Enhanced fluorescence sensing of tetracycline with Ti2C quantum dots. Nano Res. 17, 3180–3188 (2024). https://doi.org/10.1007/s12274-023-6134-8

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