化学
选择性
土霉素
组合化学
金属
膜
四环素
发光
抗生素
立体化学
有机化学
光电子学
生物化学
物理
催化作用
作者
Jiawei Cheng,Nana Liu,Lianzhou Wang,Huaiwei Wang,Jing Lü,Yun‐Wu Li,Jianmin Dou,Suna Wang
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2023-02-14
卷期号:62 (8): 3573-3584
被引量:14
标识
DOI:10.1021/acs.inorgchem.2c04246
摘要
It is necessary to find more simple methods to improve the detection selectivity and sensitivity of antibiotics. Herein, we constructed a novel three-dimensional (3D) Cd-MOF LCU-117 assembled from p-terphenyl-4,2″,5″,4'-tetracarboxylic acid, which showed a special 3D helical structure with carboxylic acid ligands and nitrogen-containing ligands crossing each other vertically. Luminescence measurements indicated that LCU-117 has high selectivity and sensitivity toward Eu3+ through the ratiometric effect. Meanwhile, this complex itself could detect antibiotics oxytetracycline (OTC) through the turn-off mechanism. When Eu3+ was added in suspensions of LCU-117 (noted as Eu3+@LCU-117), the detection toward OTC was enhanced significantly and visually. The sensing mechanism was investigated in detail by various measurements and theoretical calculations. LCU-117 has a good effect on the logic gate, potential fingerprint detection, and mixed-matrix membranes (MMMs). The practical application for monitoring OTC in water samples also provided a satisfactory result.
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