Application of carbon quantum dots as fluorescent probes in the detection of antibiotics and heavy metals
文献类型： 外文期刊
作者： Wang, Fang 1 ; Zhang, Yuchen 1 ; Li, Hui 1 ; Gong, Wenwen 3 ; Han, Jiajun 4 ; Jiang, Shanxue 1 ; Li, Dandan 1 ; Yao, Zhiliang 1 ;
作者机构： 1.Beijing Technol & Business Univ, Sch Ecol & Environm, Beijing 100048, Peoples R China
2.Beijing Technol & Business Univ, State Environm Protect Key Lab Food Chain Pollut C, Beijing 100048, Peoples R China
3.BAAFS Beijing Acad Agr & Forestry Sci, Inst Qual Stand & Testing Technol, Beijing 100097, Peoples R China
4.China Agr Univ, Dept Appl Chem, Beijing 100193, Peoples R China
关键词： Antibiotics; Heavy metals; Carbon quantum dots; Fluorescence quenching; Fluorescence enhancement
期刊名称：FOOD CHEMISTRY （ 影响因子：9.8； 五年影响因子：9.7 ）
ISSN： 0308-8146
年卷期： 2025 年 463 卷
页码：
收录情况： SCI
摘要： Carbon quantum dots (CQDs) are ideal fluorescent probes for rapid detection. This paper reviews the synthesis methods of CQDs, their application in the rapid detection of antibiotics and heavy metals in the environment and food, and the underlying detection mechanisms. The hydrothermal method is the most commonly used for synthesis, and CQDs doped with heteroatoms (such as N, P and S) exhibit superior fluorescence performance. In the presence of antibiotics and heavy metals, the fluorescence of CQDs can be quenched or enhanced. Single-signal and dual-signal probes can be developed using the fluorescence, phosphorescence and absorbance of CQDs, enabling rapid detection of various antibiotics (e.g., tetracycline, quinolone and beta-lactam antibiotics) and heavy metals (e.g., Cd2+, Cr6+, Fe3+, Hg2+, and Pb2+). With the combination of smartphones and fluorescent probe test strips developed based on CQDs, on-the-spot rapid detection can be realized. This review offers new insights into the rapid detection of CQDs.
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