Heteronuclear metal–organic framework‐based fluorescent sensor for the detection of tetracycline antibiotics. (22nd June 2022)

• Record Type: Journal Article
• Authors: Wang, Cong; Ren, Guojian; Zhou, Sihui; Yang, Yonghang; Sun, Ahui; Fang, Yu; Guo, Dong‐Yu; Pan, Qinhe
• Is Part Of: Applied organometallic chemistry. Volume 36:Number 8(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-06-22
• Subjects: detection -- fluorescent sensor -- heteronuclear MOF -- tetracycline antibiotics; Organometallic chemistry -- Periodicals; Organometallic compounds -- Periodicals; 547.05
• DOI: 10.1002/aoc.6767
• Languages: English
• ISSNs: 0268-2605

Abstract

Abstract : The residues of tetracycline antibiotics (TCs) have caused serious environmental pollution due to the multi‐field application. In order to rapidly detect TCs, there is an urgent need to design new fluorescence sensor. Herein, a heterometallic metal‐organic framework (HNU‐61 ) is constructed and used as a fluorescence sensor for detecting the TCs. In HNU‐61, both Zn 2+ and Li + ions are assembled into the crystal structure, in which Zn 2+ adopts tetrahedral coordination mode, and can be served as the potential coordination site. The 3D structure of HNU‐61 is formed by the connection between Zn 2+ /Li + and isophthalic acid (m‐BDC 2− ) ligand with the 1D channel along a axis. Among the six categories of antibiotics, HNU‐61 can effectively detect TCs, including tetracycline hydrochloride (TCY), chlortetracycline hydrochloride (CTE), doxycycline hydrochloride (DOX), and oxytetracycline hydrochloride (OXY) with the detection limits of 6.5 × 10 −8 M, 9.2 × 10 −8 M, 4.5 × 10 −7 M, and 3.9 × 10 −7 M, respectively. Furthermore, HNU‐61 enables a rapid and sensitive detection of TCs with good anti‐interference and circulation. The detection mechanism can be attributed to the interaction between Zn 2+ in HNU‐61 and TCs. Abstract : A heterometallic metal–organic framework has been constructed, which can be used as fluorescent sensors for the detection of tetracycline antibiotics probably due to the interaction between Zn 2+ of the framework and tetracyclines.