A new MOF-based fluorescent sensor for the detection of nitrofuran antibiotics

Yang, Yonghang; Ren, Guojian; Yang, Weikang; Qin, Xudong; Gu, Dongxu; Liang, Zhiqiang; Guo, Dong-Yu; Pan, Qinhe

doi:10.1016/j.poly.2020.114923

Cited by 51 publications

(14 citation statements)

References 41 publications

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“…More importantly, to verify the photoinduced electron transfer (PET) hypothesis, the LUMO and HOMO energy levels were calculated using DFT at the theoretical level of B3LYP/6-31G*. As can be seen in Figure S17, the LUMO energy levels of CIP and OFLX are higher than that of H 2 PIA ligand, reaching a possibility of electron transfer from the LUMO of OFLX and CIP to the LUMO of Eu-MOF, generating a fluorescence quenching of the Eu 3+ ion centers. − Finally, the luminescence properties of OFLX and CIP solutions shown in Figure S18 exhibited an emission peak at 500 and 450 nm, as derived from the intrinsic luminescence of OFLX and CIP. Meanwhile, the fluorescence kinetics process is explored also.…”

Section: Results and Discussionmentioning

confidence: 99%

Stable Europium-based Metal–Organic Frameworks for Naked-eye Ultrasensitive Detecting Fluoroquinolones Antibiotics

Xiao

Liu

Tian³

et al. 2021

Inorg. Chem.

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Fluoroquinolone antibiotic (FQ) residues, such as ciprofloxacin (CIP) and ofloxacin (OFLX), have aroused public concerns owing to their serious impact in environmental water or food fields which influence human health. A facile and high-performance sensory method for detecting FQs is highly desirable for practical requirements. Herein, we have presented a luminescent Eu-MOF with unique 2D (4-c) {4 4 .6 2 }-connected topology, which holds the outstanding fluorescent property and excellent chemical stability in aqueous solution for 15 days. Thus, Eu-MOF can be considered as a highly sensitive chemo-sensor for sensing CIP and OFLX with different fluorescent color conversion (red changes to green for OFLX and to blue for CIP) and a low detection limit of 0.693 and 0.802 ppb, respectively. Furthermore, the mechanism of sensing CIP and OFLX was exposed to the photoinduced electron transfer (PET) and dynamic quenching process, as evaluated by DFT calculations and fluorescence lifetime decay measurements. Our work first reports a simple and efficient strategy for recognizing CIP and OFLX with a special luminescence color-change phenomenon based on MOF materials, serving as a meaningful guide for researchers in beneficial applications.

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Section: Results and Discussionmentioning

confidence: 99%

Stable Europium-based Metal–Organic Frameworks for Naked-eye Ultrasensitive Detecting Fluoroquinolones Antibiotics

Xiao

Liu

Tian³

et al. 2021

Inorg. Chem.

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“…The higher K SV value and lower detection limit make CUST-535 show greater advantages in MOF-based sensors. [37][38][39][40][41][42][43] (Table S4)…”

Section: Sensing Of Antibioticsmentioning

confidence: 99%

Anthracene‐Modified Cadmium Metal‐Organic Framework as an Excellent Sensor for the Detection of 2,4,6‐Trinitrophenol and Nitrofurantoin

Men

Fan

et al. 2022

Eur J Inorg Chem

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A novel 3D MOF [Cd 2 (IPA) 2 L 0.5 (CH 3 OH)] (CUST-535) (H 2 IPA = isophthalic acid; L = 9,10-bis(N-benzimidazolyl)-anthracene) with rectangular 2D layer has been rationally synthesized under solvothermal conditions using ligand L with fluorescence properties. CUST-535 displays a fascinating 6-connected 3D network based on the point symbol {3 6 • 4 18 }. The excellent structural stability of CUST-535 was also verified by PXRD and TGA. Remarkably, thanks to the presence of the anthracene-based chromophore, CUST-535 exhibits strong blue light emission and shows sensitive and rapid fluorescence "turn-off" detecting of trace amounts of 2,4,6-trinitrophenol (TNP) and nitrofurantoin (NFT) in DMF. The limit of detection (LOD) for TNP and NFT are 0.374 μM and 0.675 μM, respectively. In the end, the mechanisms of fluorescence quenching have also been systematically studied through theoretical calculations and experiments.

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“…[5,6] As an important type of crystalline material, metal-organic frameworks (MOFs) [7,8] show adjustable structures, long fluorescence life, high color purity, some of which have been used to detect organic pollutants, [9] heavy metal ions [10][11][12] drug molecules, [13,14] and antibiotics. [15] For example, our group [16] developed a 5-chloro-8-hydroxyquinoline-based MOF to detect nitrofuran (NAF) antibiotics. At present, the research on tetracycline detection is usually based on fluorescence quenching, and the quenching mechanism can be divided into two types.…”

Section: Introductionmentioning

confidence: 99%

Heteronuclear metal–organic framework‐based fluorescent sensor for the detection of tetracycline antibiotics

Wang

Ren

Zhou

et al. 2022

Applied Organom Chemis

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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 Zn2+ and Li+ ions are assembled into the crystal structure, in which Zn2+ 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 Zn2+/Li+ and isophthalic acid (m‐BDC2−) 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 Zn2+ in HNU‐61 and TCs.

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A new MOF-based fluorescent sensor for the detection of nitrofuran antibiotics

Cited by 51 publications

References 41 publications

Stable Europium-based Metal–Organic Frameworks for Naked-eye Ultrasensitive Detecting Fluoroquinolones Antibiotics

Stable Europium-based Metal–Organic Frameworks for Naked-eye Ultrasensitive Detecting Fluoroquinolones Antibiotics

Anthracene‐Modified Cadmium Metal‐Organic Framework as an Excellent Sensor for the Detection of 2,4,6‐Trinitrophenol and Nitrofurantoin

Heteronuclear metal–organic framework‐based fluorescent sensor for the detection of tetracycline antibiotics

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