荧光
检出限
分子印迹聚合物
光子晶体
分子印迹
材料科学
四环素
化学
纳米技术
色谱法
光电子学
选择性
光学
有机化学
生物化学
物理
抗生素
催化作用
作者
Mingfei Pan,Yueyao Wang,Jingying Yang,Huilin Li,Xintong Han,Shuo Wang
出处
期刊:Food Chemistry
[Elsevier]
日期:2024-02-01
卷期号:433: 137407-137407
被引量:4
标识
DOI:10.1016/j.foodchem.2023.137407
摘要
Rapid, portable, and sensitive detection of tetracycline (TC) is crucial for the environment and human health. In this study, we developed carbon dots (CDs)-based fluorescent molecularly imprinted photonic crystal hydrogel (FMIPH) strips for TC detection in animal-derived foods. CDs emit fluorescent signals, and molecularly imprinted polymers provide specific recognition sites for TC. Inverse opal photonic crystals afford stable 3D macroporous mass transfer channels that considerably reduce binding time between TC and the strips. The portable FMIPH strip exhibited a linear fluorescence response to TC in the concentration range of 0.1-50 μg mL-1, with a detection limit of 0.067 μg mL-1. Good recoveries of TC (93.86-112.59%) were observed in TC-spiked commercially available pork, eggs, and milk. A combination of FMIPH strips with a portable fluorescent reading device could achieve sensitive, on-site, and real-time detection of TC in animal-derived foods.
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