College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China; Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou University of Light Industry, Zhengzhou 450001, China.
College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China.
Food Chem. 2024 Jan 30;432:137213. doi: 10.1016/j.foodchem.2023.137213. Epub 2023 Aug 19.
Antibiotic residues cause extensive damage to food security, thus arousing serious concerns. Hence, rapid and sensitive detection of antibiotic residues is crucial to food safety. This study aimed to propose a portable, visual, intelligent and rapid method for tetracycline detection. We developed a ratiometric fluorescent sensor based on the Eu-functionalized regular octahedral UiO-66-NH material. The developed sensor could quantify tetracycline in the concentration range of 0.5-200 μM with a detection limit as low as 0.2 μM under the optimum conditions. Furthermore, the analytical results obtained using the designed sensor in the actual samples were basically consistent with those obtained using high-performance liquid chromatography. Based on these achievements, a smartphone application-integrated fluorescent testing paper was designed for facile, intelligent, and visual detection of tetracycline. The integrated portable sensor not only saved cost and time for testing but also provided a forward-looking approach to fast, sensitive detection of antibiotic residues.
抗生素残留对食品安全造成广泛危害，引起了严重关注。因此，快速、灵敏地检测抗生素残留对食品安全至关重要。本研究旨在提出一种用于四环素检测的便携式、可视化、智能化和快速方法。我们开发了一种基于 Eu 功能化规则八面体 UiO-66-NH 材料的比率荧光传感器。在最佳条件下，该传感器可以在 0.5-200 μM 的浓度范围内定量检测四环素，检测限低至 0.2 μM。此外，使用设计的传感器在实际样品中获得的分析结果与使用高效液相色谱法获得的结果基本一致。基于这些成果，我们设计了一种集成智能手机应用程序的荧光试纸，用于方便、智能和可视化地检测四环素。集成的便携式传感器不仅节省了测试成本和时间，还为快速、灵敏地检测抗生素残留提供了一种前瞻性方法。
