Abstract
Metal-containing copper-nitrogen doped porous carbon materials (Cu@NC) were prepared by a one-step pyrolysis method, and an electrochemical sensor capable of simultaneously detecting luteolin and baicalein was fasbricated. Cu@NC has been characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The electrochemical properties of the Cu@NC sensor were studied by electrochemical impedance spectroscopy and cyclic voltammetry. In addition, the electrochemical behavior of the sensor on different electrodes was studied by differential pulse voltammetry. The calibration curve was linear in the range of (0.05–20.0) × 10–6 mol/L. The detection limits of luteolin and baicalein were 5.30 × 10–8 mol/L and 9.10 × 10–8 mol/L, respectively (S/N = 3). The sensor has also been successfully used to detect luteolin and baicalin in actual drugs. It has broad potential applications in the field of medicine due to its simple production and low technical cost requirements.
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The authors declare that the data supporting the findings of this study are available within the paper and its Supplementary Information files. Should any raw data files be needed in another format they are available from the corresponding author upon reasonable request. Source data are provided with this paper.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (No. 22066010); The Master's Degree Research Innovation Project (MYK2023003) of Hubei University of Nationalities
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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by [TC], [YL] and [YG]. The first draft of the manuscript was written by [TC] and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Chu, T., Liu, Y., Gao, Y. et al. Copper-nitrogen doped carbon nanosheet-based electrochemical sensors for the detection of luteolin and baicalein. J Mater Sci: Mater Electron 35, 340 (2024). https://doi.org/10.1007/s10854-024-12089-3
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DOI: https://doi.org/10.1007/s10854-024-12089-3