A luminescent Eu3+-functionalized MOF for sensitive and rapid detection of tetracycline antibiotics in swine wastewater and pig kidney

• Published in: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy Vol. 277; p. 121252
• Main Authors: He, Jia-Xin, Yuan, Hou-Qun, Zhong, Yu-Fei, Peng, Xiong-Xin, Xia, Yi-Fan, Liu, Si-Yi, Fan, Qing, Yang, Jun-Lan, Deng, Ke, Wang, Xiao-Ying, Bao, Guang-Ming
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 05.09.2022
• Subjects: Detection; Doxycycline; Eu3; Metal-organic frameworks; Tetracycline; Eu3; Detection; Metal-organic frameworks; Doxycycline; Tetracycline
• ISSN: 1386-1425
• DOI: 10.1016/j.saa.2022.121252

[Display omitted] •A water-stable luminescent europium MOF (EuUCBA) is fabricated and explored as a sensor for monitoring tetracyclines.•The sensor shows high selectivity and sensitivity, rapid response, low LOD, and good anti-interference toward tetracyclines.•The sensor shows great potential for determination of tetracyclines in wastewater and complex biological samples. Tetracyclines (TCs), a type of antibiotics, are widely used in human therapy and animal husbandry. Public concerns about tetracyclines residues have been raised due to their negative impact on the environment and food, causing bacterias drug resistance and human health concerns. In this work, a luminescent europium MOF (EuUCBA) is constructed via post-synthetic attachment of Eu3+ into a UiO-66 type MOF. The luminescent of EuUCBA exhibits high stability in aqueous media in the pH range of 4–11. Among 36 common veterinary drugs, the synthesized probe is highly selective and sensitive to six tetracyclines with low detection limits of 0.118 μM, 0.228 μM, 0.102 μM, 0.138 μM, 0.206 μM, and 0.078 μM for oxytetracycline (OTC), chlortetracycline (CTC), methylenetetracycline (MTC), minocycline (MOC), tetracycline (TC), and doxycycline (DOXY), respectively. Furthermore, the probe shows good anti-interference ability and fast response. Finally, EuUCBA was successfully to detect DOXY in swine wastewater and pig kidney with good recoveries. This work provides an excellent fluorescent sensor for highly selective and rapid detection of TCs residues in wastewater and complex biological samples.