Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 330, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2020.129314
Keywords
Lanthanide metal-organic framework; Ratiometric detection; Tetracyclines; Fluorescent probe
Funding
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB20000000]
- Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSW-SLH019]
- National Natural Science Foundation of China [21707143]
- Natural Science Foundation of Fujian Province [2019I0028, 2020J05087]
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A polynuclear lanthanide metal-organic framework Tb-L1 with one-dimensional channels was synthesized, showing good sensitivity towards tetracyclines and efficient discrimination between different types of tetracyclines based on emission peak-height ratio of lanthanide to ligand.
Tetracyclines (TCs) are commonly employed for bacterial infections treatment present in humans as well as animals. However, antibiotics abuse generates a substantial danger to environment and human health. In this regard, the development of efficient and straightforward methods for detection of TCs with selectivity and sensitivity is highly significant yet challenging. Herein, we synthesize a polynuclear lanthanide metal-organic framework (Tb-L1) with one-dimensional channels, featuring an estimated diameter of 1.1 nm along the c axis. Meanwhile, Tb-L1 exhibits good sensitivity towards tetracycline (TC), manifesting limit of detection (LOD) of 8 ng mL(-1). Furthermore, Tb-L1 can efficiently discriminate chlortetracycline (CTC), oxytetracycline (OTC), and doxycycline (DOX) from TC, because of the excellent fingerprint relationship between TCs and emission peak-height ratio of lanthanide to ligand.
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