Highly sensitive and rapid detection of thiabendazole residues in oranges based on a luminescent Tb3+-functionalized MOF

“…Consequently, the crystalline purity of Zn1 and Zn2 was illustrated by utilizing powder X-ray diffraction (PXRD) patterns. Then fresh samples were immersed in deionized water for one week or in different pH surroundings (1,2,3,4,10,11,12,13) for 24 hours for measuring the acid-base stability of Zn2. The PXRD patterns of Zn2 showed similar peaks under a wide range of pH values, which exactly matched with the pristine sample.…”

Section: Stability and Fluorescence Propertiesmentioning

confidence: 99%

“…[7][8][9][10] The Office of Environmental Health Hazard Assessment announces long-term exposure to residual TM or transformed CBZ may bring abnormal pathological phenomena due to their reproductive toxicity and carcinogenic potential. [11][12][13] Many advanced techniques have also been developed for real-time monitoring pesticides. Electrochemical detection of parathion-ethyl demonstrated an ultralow limit of detection (0.004 × 10 −6 m), a wide linear range (0.02-43 × 10 −6 m), high reproducibility, and good suitability in aquatic samples.…”

mentioning

confidence: 99%

Smart MOF‐on‐MOF Hydrogel as a Simple Rod‐shaped Core for Visual Detection and Effective Removal of Pesticides

Jia

Fan

Zhang

et al. 2022

Small

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or entering into the plant body through the systemic action were transformed into carbendazim (CBZ), inhibiting the germination of spores, hindering cell division, and achieving a good therapeutic effect by interfering with the formation of pathogenic mycelium. [7][8][9][10] The Office of Environmental Health Hazard Assessment announces long-term exposure to residual TM or transformed CBZ may bring abnormal pathological phenomena due to their reproductive toxicity and carcinogenic potential. [11][12][13] Many advanced techniques have also been developed for real-time monitoring pesticides. Electrochemical detection of parathion-ethyl demonstrated an ultralow limit of detection (0.004 × 10 −6 m), a wide linear range (0.02-43 × 10 −6 m), high reproducibility, and good suitability in aquatic samples. [14] The photothermal spectrum was proposed to quantitatively and real-time online determine the concentration of chlorpyrifos with excellent sensitivity (1.8 pm/ ppm). [15] More importantly, fluorescence detection enabled rapidly in situ imaging for nondestructive detection of organophosphorus pesticide residues in fresh agricultural products, [16] exhibiting considerable feasibility for non-invasive, visual detection, and rapid analysis of TM on food. Besides, some researchers paid close attention to the removal of derived CBZ in recent years as pesticide residues greatly magnify the potential risks in food safety. Laurella et al. [17] and Wang et al. [18] have successfully presented the adsorption capacity of CBZ on silica and FeCl 3 -modified corn straw biochar. Even both the fluorescence detection of TM and removal of CBZ have been reported, it is still essential to develop efficient, friendly, and smart materials for detecting and removing simultaneously.Metal-organic frameworks (MOFs) were one kind of advanced multifunctional materials formed by self-assembly of functionalized organic ligands and metal ions/clusters, which have been smoothly used in diverse fields including sensing, adsorption, drug delivery, gas storage, heterogeneous catalysis, etc. [19][20][21][22] Especially, Zn(II)-based MOFs (Zn-MOFs) have been proved to be promising fluorescent probes and sorbents for pesticides in the environmental analysis, due to low toxicity, tailored crystal structures, tunable porosity, and remarkableThe immoderate use of pesticides in the modern agricultural industry has led to the pollution of water resources and ultimately threatens the human body. Herein, two metal-organic frameworks (MOFs), namely {[Zn(tpt) 2 •2H 2 O]} n (Zn1) and {[Zn 2 (tpt) 2 (bdc)]} n (Zn2), (Htpt = 5-[4(1H-1,2,4-triazol-1-yl)]phenyl-2H-tetrazole), respectively, are constructed as smart materials for visual and on-site detection of pesticides and their removal from water. The exposed nitrogen-rich sites and high chemical stability make Zn2 a self-assembly core to further fabricate MOF-on-MOF-sodium alginate (ZIF-8-on-Zn2@SA) composite by wrapping ZIF-8 on the outside surface. Inheriting the excellent fluorescent emission of Zn2, the rod-like...

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“…The recovery and relative standard deviation (RSD) reached 88.14%–126.21% and 2.85%–8.13%, respectively. ( Peng et al, 2021 ) used the strategy of functionalizing luminescent guest ion Tb 3+ within non-luminescent Zr-MOFs to provide luminescence. The Tb 3+ -functionalized Zr-MOF probe demonstrated many attractive sensing properties toward thiabendazoles (TBZ) in oranges, such as broad linear range (0–80 μM), high selectivity, low LOD (0.271 μM), and rapid response time (less than 1 min).…”

Section: Applications and Mechanisms Of Mofs-based Sensors In Toxins ...mentioning

confidence: 99%

Metal-Organic Frameworks-Based Sensors for the Detection of Toxins in Food: A Critical Mini-Review on the Applications and Mechanisms

Xuan

Wang

Manickam

et al. 2022

Front. Bioeng. Biotechnol.

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Using scientific technologies to detect toxins in food is significant to prevent food safety problems and protect people’s health. Recently, the rise of sensors has made rapid, efficient, and safe detection of food toxins possible. One of the key factors impacting the sensor’s performance is the nanomaterials employed. Metal-organic frameworks (MOFs), with high specific surface area, tunable composition, porous structure, and flexible properties, have aroused the interest of researchers. The applications of MOFs in detecting food toxins have seen remarkable success in the past few years. In this critical mini-review, the impact of various synthesis methods on MOFs’ properties is first presented. Then, the applications and mechanisms of MOFs-based sensors in detecting various toxins are summarized and analyzed. Finally, future perspectives, potential opportunities, and challenges in this field are discussed.

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Highly sensitive and rapid detection of thiabendazole residues in oranges based on a luminescent Tb3+-functionalized MOF

Cited by 56 publications

References 40 publications

Luminescent porous metal–organic gels for efficient adsorption and sensitive detection of chlortetracycline hydrochloride assisted by smartphones and a test paper-based analytical device

Luminescent porous metal–organic gels for efficient adsorption and sensitive detection of chlortetracycline hydrochloride assisted by smartphones and a test paper-based analytical device

Smart MOF‐on‐MOF Hydrogel as a Simple Rod‐shaped Core for Visual Detection and Effective Removal of Pesticides

Metal-Organic Frameworks-Based Sensors for the Detection of Toxins in Food: A Critical Mini-Review on the Applications and Mechanisms

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