College of Life Sciences and Technology, College of Informatics, Huazhong Agricultural University, Wuhan 430070, People's Republic of China; Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, People's Republic of China.
College of Life Sciences and Technology, College of Informatics, Huazhong Agricultural University, Wuhan 430070, People's Republic of China.
Spectrochim Acta A Mol Biomol Spectrosc. 2023 Apr 15;291:122384. doi: 10.1016/j.saa.2023.122384. Epub 2023 Jan 20.
Development of accurate and efficient TCs residue analysis methods is of great significance for the protection of environment, food safety and public health. Herein, a dual-responsive ratiometric fluorescence sensor being capable of simple and sensitive detection of tetracycline (TC) was presented, which was constructed by immobilizing europium ions (Eu) onto the mercaptopropionic acid stabilized copper nanoclusters (MPA-Cu NCs). In the presence of TC, the red fluorescence of Eu was enhanced through antenna effect (AE), while the green fluorescence of MPA-Cu NCs was quenched through internal filter effect (IFE), leading to an obvious fluorescence color evolution from green to red for the probe solution. In addition to successful design of a smartphone-assisted colorimetric analysis platform for portable detection, a logic gate device capable of intelligently monitoring TC concentration is also designed.
发展准确高效的 TC 残留分析方法对于保护环境、食品安全和公众健康具有重要意义。本文制备了一种基于铕离子（Eu）标记巯基丙酸稳定的铜纳米簇（MPA-Cu NCs）的比率型荧光传感器，用于四环素（TC）的简单、灵敏检测。在 TC 的存在下，通过天线效应（AE）增强了 Eu 的红色荧光，而通过内滤效应（IFE）猝灭了 MPA-Cu NCs 的绿色荧光，导致探针溶液的荧光颜色从绿色到红色明显变化。除了成功设计了用于便携式检测的智能手机辅助比色分析平台外，还设计了一种能够智能监测 TC 浓度的逻辑门装置。
