A new Eu-MOF for ratiometrically fluorescent detection toward quinolone antibiotics and selective detection toward tetracycline antibiotics

• Published in: Chinese chemical letters Vol. 33; no. 3; pp. 1353 - 1357
• Main Authors: Wang, Chao-Yang, Wang, Chong-Chen, Zhang, Xiu-Wu, Ren, Xue-Ying, Yu, Baoyi, Wang, Peng, Zhao, Zi-Xuan, Fu, Huifen
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.03.2022; Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation/Beijing Energy Conservation&Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center,Beijing University of Civil Engineering and Architecture,Beijing 100044,China%Key Laboratory of Urban Agriculture(North China),Ministry of Agriculture,College of Biological Sciences Engineering,Beijing University of Agriculture,Beijing 102206,China
• Subjects: Fluorescent detection; Metal-organic framework; Quinolone antibiotics; Sensor; Tetracyclines antibiotics; Fluorescent detection; Tetracyclines antibiotics; Quinolone antibiotics; Metal-organic framework; Sensor
• ISSN: 1001-8417; 1878-5964
• DOI: 10.1016/j.cclet.2021.08.095

Development of new self-calibrating fluorescent sensing methods has been a popular research field with the aim of protecting the human health and environment sustainability. In this work, a novel Eu-based metal organic framework (MOF) Eu(2,6-NDC)(COO) (BUC-88) was developed by employing 2,6-NDC (2,6-naphthalenedicarboxylic acid) as bridging ligands. BUC-88 performed different sensing process toward quinolone antibiotics and tetracyclines antibiotics in terms of fluorescence intensity and color. BUC-88 exhibited excellent selectivity and sensitivity detection property toward enrofloxacin (ENR), norfloxacin (NOR) and ciprofloxacin (CIP) over other Pharmaceutical and Personal Care Products (PPCPs), accomplishing the detection limit of 0.12 µmol/L, 0.52 µmol/L, 0.75 µmol/L, respectively. Notably, BUC-88 acted as an excellent fluorescence sensor for tetracyclines antibiotics with fast response time (less than 1 s), high selectivity and sensitivity (LODs = 0.08 µmol/L). The fluorescent detection method was successfully used for visual and ultrasensitive detection of ENR, NOR, CIP and tetracycline hydrochloride (TC) in lake water with satisfied recovery from 99.75% to 102.30%. Finally, the photoinduced electron transfer and the competitive absorption of ultraviolet light are the main mechanisms for sensitive detection toward quinolone antibiotics and tetracyclines antibiotics. A new 3D Eu-MOF (BUC-88) was used as fluorescence sensor to detect quinolone antibiotics and tetracycline antibiotics in aqueous solution. The mechanism of fluorescent sensing toward quinolone antibiotics and tetracycline antibiotics was proposed and verified. [Display omitted]