荧光
碳量子点
碳纤维
重金属
量子点
环境化学
抗生素
纳米技术
化学
材料科学
生物化学
物理
光学
复合数
复合材料
作者
Fang Wang,Yuchen Zhang,Hui Li,Wenwen Gong,Jiajun Han,Shanxue Jiang,Dandan Li,Zhiliang Yao
标识
DOI:10.1016/j.foodchem.2024.141122
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 rapid detection of CQDs.
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