Cao Qi, Li Songrui, Ma Jiutong, Jia Qiong
College of Chemistry, Jilin University, Changchun, 130012, China.
Mikrochim Acta. 2025 Sep 4;192(10):634. doi: 10.1007/s00604-025-07401-9.
Tetracycline (TC) residues in animal-derived food pose a significant threat to human health, necessitating the development of straightforward and user-friendly methods for TC detection to safeguard food safety. Here, a series of novel Eu-based metal-organic frameworks (Eu-MOFs) were prepared using a dual-ligand strategy. In the midst of these Eu-MOFs, Eu-ABPDC/BPDC exhibits the dual emission at 472 and 619 nm under single-wavelength excitation, enabling highly effective ratiometric fluorescence sensing of TC. Notably, the sensor presents favorable performance characteristics, including rapid response (90 s), high specificity, broad linear range (0.1-200 μM), and low detection limit (0.081 μM). Furthermore, based on the attractive performance of Eu-ABPDC/BPDC, it was further combined with carrageenan to prepare a hydrogel assay kit for onsite, smartphone-assisted visualization and quantitative detection of TC.
动物源性食品中的四环素（TC）残留对人类健康构成重大威胁，因此需要开发简单易用的TC检测方法以保障食品安全。在此，采用双配体策略制备了一系列新型的铕基金属有机框架材料（Eu-MOFs）。在这些Eu-MOFs中，Eu-ABPDC/BPDC在单波长激发下于472和619 nm处呈现双重发射，能够实现对TC的高效比率荧光传感。值得注意的是，该传感器具有良好的性能特点，包括快速响应（90秒）、高特异性、宽线性范围（0.1 - 200 μM）和低检测限（0.081 μM）。此外，基于Eu-ABPDC/BPDC的优异性能，将其进一步与卡拉胶结合，制备了用于现场、智能手机辅助可视化和定量检测TC的水凝胶检测试剂盒。
