基于AgCl/Ag@MOFs(Ag)的高稳定荧光探针选择性检测牛奶中痕量四环素类抗生素。

IF 5.3 2区 化学 Q1 CHEMISTRY, ANALYTICAL
Xinlou Li, Ganghui Wang, Haoxiang Wang, Aijia Wang, Hongxu Guo
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引用次数: 0

摘要

首次通过简单快速的一锅回流法制备了AgCl/Ag@MOF(Ag)纳米复合材料,并将AgCl/Ag纳米团簇稳定在片状MOF(Ag)表面。制备的ag基mof荧光探针具有较高的荧光强度和良好的荧光稳定性,可通过内部过滤效应(IFE)和静态猝灭机制检测四环素类抗生素(TCs)。实验结果表明,四环素(TET)、氯四环素(CTC)和土霉素(OTC)的检测浓度范围分别为10 ~ 80 μM、10 ~ 60 μM和10 ~ 30 μM,检出限分别为2.59 nM、1.36 nM和1.43 nM。TCs荧光探针具有较高的灵敏度和选择性,为利用负载mof作为荧光探针快速、简便、可靠地检测食品中痕量TCs提供了新的思路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Highly stable fluorescent probe based on AgCl/Ag@MOFs(Ag) for the selective detection of trace tetracycline antibiotics in milk

AgCl/Ag@MOF(Ag) nanocomposites have been successfully fabricated through a simple and quick one-pot reflux approach for the first time, where AgCl/Ag nanoclusters are stabilized on the sheet-like MOF(Ag) surface. The as-prepared Ag-based MOFs fluorescent probe shows high fluorescence intensity and excellent fluorescence stability for sensing of tetracycline antibiotics (TCs) through mechanisms involving inner filter effect (IFE) and static quenching. The experimental results show that the detection concentration ranges for tetracycline (TET), chlortetracycline (CTC), and oxytetracycline (OTC) were 10–80 μM, 10–60 μM, and 10–30 μM, and with the detection limits of 2.59 nM, 1.36 nM, and 1.43 nM, respectively. The high sensitivity and selectivity of the fluorescent probe for TCs offers novel perspectives on utilizing supported MOFs as fluorescent probes for trace TCs detection in food by a fast, simple, and reliable method.

Graphical abstract

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来源期刊
Microchimica Acta
Microchimica Acta 化学-分析化学
CiteScore
9.80
自引率
5.30%
发文量
410
审稿时长
2.7 months
期刊介绍: As a peer-reviewed journal for analytical sciences and technologies on the micro- and nanoscale, Microchimica Acta has established itself as a premier forum for truly novel approaches in chemical and biochemical analysis. Coverage includes methods and devices that provide expedient solutions to the most contemporary demands in this area. Examples are point-of-care technologies, wearable (bio)sensors, in-vivo-monitoring, micro/nanomotors and materials based on synthetic biology as well as biomedical imaging and targeting.
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