1
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Zhang J, Zhu B, Zhang X, Peng Y, Li S, Han D, Ren S, Qin K, Wang Y, Zhou H, Gao Z. CLICK-FLISA Based on Metal-Organic Frameworks for Simultaneous Detection of Fumonisin B1 (FB1) and Zearalenone (ZEN) in Maize. BIOSENSORS 2024; 14:355. [PMID: 39056631 PMCID: PMC11275017 DOI: 10.3390/bios14070355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/18/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024]
Abstract
Mycotoxins are secondary products produced primarily by fungi and are pathogens of animals and cereals, not only affecting agriculture and the food industry but also causing great economic losses. The development of rapid and sensitive methods for the detection of mycotoxins in food is of great significance for livelihood issues. This study employed an amino-functionalized zirconium luminescent metal-organic framework (LOF) (i.e., UiO-66-NH2). Click chemistry was utilized to assemble UiO-66-NH2 in a controlled manner, generating LOF assemblies to serve as probes for fluorescence-linked immunoassays. The proposed fluoroimmunoassay method for Zearalenone (ZEN) and Fumonisin B1 (FB1) detection based on the UiO-66-NH2 assembled probe (CLICK-FLISA) afforded a linear response range of 1-20 μmol/L for ZEN, 20 μmol/L for FB1, and a very low detection limit (0.048-0.065 μmol/L for ZEN; 0.048-0.065 μmol/L for FB1). These satisfying results demonstrate promising applications for on-site quick testing in practical sample analysis. Moreover, the amino functionalization may also serve as a modification strategy to design luminescent sensors for other food contaminants.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Yu Wang
- Military Medical Sciences Academy, Academy of Military Sciences, Tianjin 300050, China; (J.Z.); (X.Z.); (Y.P.); (S.L.); (D.H.); (S.R.); (K.Q.)
| | - Huanying Zhou
- Military Medical Sciences Academy, Academy of Military Sciences, Tianjin 300050, China; (J.Z.); (X.Z.); (Y.P.); (S.L.); (D.H.); (S.R.); (K.Q.)
| | - Zhixian Gao
- Military Medical Sciences Academy, Academy of Military Sciences, Tianjin 300050, China; (J.Z.); (X.Z.); (Y.P.); (S.L.); (D.H.); (S.R.); (K.Q.)
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2
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Li S, Zhao G, Sun X, Zheng J, Liu J, Huang M. Highly sensitive and selective fluorescent "turn-on" sensor for Ag+ detection using MAPbBr3@PCN-221(Fe): An efficient Ag+-bridged energy transfer from perovskite to MOF. J Chem Phys 2024; 160:184709. [PMID: 38738613 DOI: 10.1063/5.0207983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 04/29/2024] [Indexed: 05/14/2024] Open
Abstract
Metal ion-induced water pollution is attracting increasing public attention. Perovskite quantum dots and metal-organic frameworks (MOFs), owing to their outstanding properties, hold promise as ideal probes for detecting metal ions. In this study, a composite material, MAPbBr3@PCN-221(Fe), was prepared by encapsulating MAPbBr3 quantum dots with PCN-221(Fe), demonstrating high chemical stability and good reusability. The composite material shows a sensitive fluorescence turn-on signal in the presence of silver ions. The fluorescence intensity of the composite material exhibits a linear relationship with the concentration of Ag+ in the solution, with a low detection limit of 8.68 µM. Moreover, the fluorescence signal exhibits a strong selectivity for Ag+, enabling the detection of Ag+ concentration. This fluorescence turn-on signal originates from the Ag+-bridged energy transfer from the conductive band of MAPbBr3 to the excited state of the MOF, which is directly proportional to the concentration of silver ions. Simultaneously, this finding may open up a new possibility in artificial controlled energy transfer from perovskite to MOF for future development.
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Affiliation(s)
- Songyuan Li
- Henan Joint International Research Laboratory of New Energy Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Gang Zhao
- Henan Joint International Research Laboratory of New Energy Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Xinhang Sun
- Henan Joint International Research Laboratory of New Energy Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Jiale Zheng
- Henan Joint International Research Laboratory of New Energy Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Junhui Liu
- Henan Joint International Research Laboratory of New Energy Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Mingju Huang
- Henan Joint International Research Laboratory of New Energy Materials and Devices, School of Physics and Electronics, Henan University, Kaifeng 475004, China
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3
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Qin S, Meng F, Jin F, Xu X, Zhao M, Chu H, Gao L, Liu S. Dual-functional porphyrinic zirconium-based metal-organic framework for the fluorescent sensing of histidine enantiomers and Hg 2. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2386-2399. [PMID: 38572640 DOI: 10.1039/d3ay02241b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
A novel fluorescence sensor based on a porphyrinic zirconium-based metal-organic framework, L-cysteine-modified PCN-222 (L-Cys/PCN-222), was developed to selectively recognize histidine enantiomers and sensitively detect Hg2+. The dual-functional sensor was successfully prepared via the solvent-assisted ligand incorporation method and characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), 1H nuclear magnetic resonance (1H NMR) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, circular dichroism (CD), X-ray photoelectron spectroscopy (XPS), and nitrogen adsorption-desorption analyses. L-Cys/PCN-222 not only showed a higher quenching response for L-histidine than that for D-histidine with a fast fluorescent response rate of <40 s but also exhibited low detection limits for L- and D-histidine (2.48 μmol L-1 and 3.85 μmol L-1, respectively). Moreover, L-Cys/PCN-222 was employed as a fluorescent and visual sensor for the highly sensitive detection of Hg2+ in the linear range of 10-500 μmol L-1, and the detection limit was calculated to be 2.79 μmol L-1 in surface water. The specific and selective recognition of chiral compounds and metal ions by our probe make it suitable for real field applications.
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Affiliation(s)
- Shili Qin
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, P. R. China.
- Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar 161006, P. R. China
- Heilongjiang Industrial Hemp Processing Technology Innovation Center, Qiqihar 161006, P. R. China
| | - Fanshu Meng
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, P. R. China.
| | - Fenglong Jin
- Qiqihar Inspection and Testing Center, Qiqihar Administration for Market Regulation, Qiqihar 161000, P.R. China
| | - Xidi Xu
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, P. R. China.
| | - Ming Zhao
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, P. R. China.
- Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar 161006, P. R. China
- Heilongjiang Industrial Hemp Processing Technology Innovation Center, Qiqihar 161006, P. R. China
| | - Hongtao Chu
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, P. R. China.
- Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar 161006, P. R. China
- Heilongjiang Industrial Hemp Processing Technology Innovation Center, Qiqihar 161006, P. R. China
| | - Lidi Gao
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, P. R. China.
- Technology Innovation Center of Industrial Hemp for State Market Regulation, Qiqihar 161006, P. R. China
- Heilongjiang Industrial Hemp Processing Technology Innovation Center, Qiqihar 161006, P. R. China
| | - Shuren Liu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310000, P. R. China.
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Zavalishin MN, Gamov GA, Kiselev AN, Aleksandriiskii VV, Medvedeva AS. Vitamin B 6-based fluorescence chemosensor for selective detection of F - ions: design, synthesis, and characterization. Photochem Photobiol Sci 2023; 22:2483-2497. [PMID: 37747667 DOI: 10.1007/s43630-023-00463-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 07/18/2023] [Indexed: 09/26/2023]
Abstract
The present paper reports on the synthesis and characterization of a new chemosensor for fluoride ions, a hydrazone derived from pyridoxal 5'-phosphate and benzothiazole. The structure of the chemosensor was confirmed using 1H and 13C NMR, FT-IR and mass spectroscopy. The conformational diversity of the chemosensor influencing the sensor activity was studied by the quantum chemistry methods on the B3LYP/6-311++G(d, p) (H, C, N, O, P, S) level, and the optimal structure of the chemosensor was chosen. The selective capability of detecting F- in the aqueous solution, which also contains Cl-, Br-, I-, NCS-, ClO4-, HSO4-, and NO3- was demonstrated. The detection limit (LOD) for fluoride ions was 0.22 µM as determined by the 3σ method. The turn-on effect in the presence of fluoride ions is based on the deprotonation of the chemosensor and its subsequent aggregation in DMSO. In addition, the chemosensor was used for the detection and estimation of F- in real samples using fluorescence spectroscopy.
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Affiliation(s)
- M N Zavalishin
- Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemistry and Technology, Sheremetevskii Pr. 7, 153000, Ivanovo, Russia.
| | - G A Gamov
- Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemistry and Technology, Sheremetevskii Pr. 7, 153000, Ivanovo, Russia
| | - A N Kiselev
- Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemistry and Technology, Sheremetevskii Pr. 7, 153000, Ivanovo, Russia
| | - V V Aleksandriiskii
- Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemistry and Technology, Sheremetevskii Pr. 7, 153000, Ivanovo, Russia
| | - A S Medvedeva
- Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemistry and Technology, Sheremetevskii Pr. 7, 153000, Ivanovo, Russia
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Ding C, Meng X, Meng X, Ma S, Huo J, Chen Z, Guo F, Xie P. Development of the Colorimetric and/or Fluorescent Probes for Detecting Fluoride ions in Aqueous Solution. J Fluoresc 2023:10.1007/s10895-023-03446-2. [PMID: 37856063 DOI: 10.1007/s10895-023-03446-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 09/18/2023] [Indexed: 10/20/2023]
Abstract
Fluoride ion is a strong Lewis base and one of the essential trace elements in human body. It plays a very important role in human health and ecological balance. The deficiency or excessive intake of fluoride ions will cause serious health problems, so the development of a sensitive and accurate detection method for fluoride ions is very important. The colorimetric and/or fluorescence sensing method has been a long standing attractive technique with high sensitivity and fast response. To date, most reported probes for fluoride ion are applicable only in organic solvents or organic-containing aqueous solutions. However, the probes for fluoride ion used in aqueous solution are more practically needed in view of environment protection and human health. In this paper, the materials and designing ideas of the colorimetric and/or fluorescent probes for fluoride ion based on different detection mechanisms in recent years were reviewed. Two main categories including formation of hydrogen bonds and formation of coordination covalent bonds were discussed. The latter one is further subdivided into three types, formation of B-F bond, formation of Si-F bond and formation of Mn+-F bond.
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Affiliation(s)
- Chenxi Ding
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450003, Henan Province, P. R. China
| | - Xiaoyi Meng
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450003, Henan Province, P. R. China
| | - Xinyi Meng
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450003, Henan Province, P. R. China
| | - Shihao Ma
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450003, Henan Province, P. R. China
| | - Jingzhu Huo
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450003, Henan Province, P. R. China
| | - Zongwei Chen
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450003, Henan Province, P. R. China.
| | - Fengqi Guo
- Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450003, Henan Province, P. R. China.
| | - Puhui Xie
- College of Sciences, Henan Agricultural University, Zhengzhou, 450002, P. R. China.
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6
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Sha H, Yan B. Terbium-based metal-organic frameworks through energy transfer modulation for visual logical sensing zinc and fluorine ions. Talanta 2023; 257:124326. [PMID: 36801562 DOI: 10.1016/j.talanta.2023.124326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/01/2023] [Accepted: 02/02/2023] [Indexed: 02/16/2023]
Abstract
Zinc is the second most abundant trace element in the human central nervous system, which is closely related to various physiological activities in the human body. Fluoride ion is one of the most harmful elements in drinking water. Excessive intake of F- may cause dental fluorosis, renal failure, or DNA damage. Therefore, it is urgent to develop sensors with high sensitivity and selectivity for the detection of Zn2+ and F- ions at the same time. In this work, a series of mixed lanthanide metal-organic frameworks (Ln-MOFs) probes are synthesized using a simple method of in situ doping. The luminous color can be finely modulated by changing the molar ratio of Tb3+ and Eu3+ during synthesis. Benefiting from the unique energy transfer modulation mechanism, the probe has the continuous detection capability of zinc ions and fluoride ions. The detection of Zn2+ and F- in a real environment shows that the probe has a good practical application prospect. The as-designed sensor at 262 nm excitation can sequentially detect Zn2+ concentrations ranging from 10-8 to 10-3 M (LOD = 4.2 nM) and F- levels ranging from 10-5 to 10-3 M (LOD = 3.6 μM) with high selectivity. Based on different output signals, a simple Boolean logic gate device is constructed to realize intelligent visualization of Zn2+ and F- monitoring.
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Affiliation(s)
- Haifeng Sha
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai, 200092, China
| | - Bing Yan
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai, 200092, China.
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7
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Smith MR, Martin CB, Arumuganainar S, Gilman A, Koel BE, Sarazen ML. Mechanistic Elucidations of Highly Dispersed Metalloporphyrin Metal-Organic Framework Catalysts for CO 2 Electroreduction. Angew Chem Int Ed Engl 2023; 62:e202218208. [PMID: 36584349 DOI: 10.1002/anie.202218208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/17/2022] [Accepted: 12/28/2022] [Indexed: 12/31/2022]
Abstract
Immobilization of porphyrin complexes into crystalline metal-organic frameworks (MOFs) enables high exposure of porphyrin active sites for CO2 electroreduction. Herein, well-dispersed iron-porphyrin-based MOF (PCN-222(Fe)) on carbon-based electrodes revealed optimal turnover frequencies for CO2 electroreduction to CO at 1 wt.% catalyst loading, beyond which the intrinsic catalyst activity declined due to CO2 mass transport limitations. In situ Raman suggested that PCN-222(Fe) maintained its structure under electrochemical bias, permitting mechanistic investigations. These revealed a stepwise electron transfer-proton transfer mechanism for CO2 electroreduction on PCN-222(Fe) electrodes, which followed a shift from a rate-limiting electron transfer to CO2 mass transfer as the potential increased from -0.6 V to -1.0 V vs. RHE. Our results demonstrate how intrinsic catalytic investigations and in situ spectroscopy are needed to elucidate CO2 electroreduction mechanisms on PCN-222(Fe) MOFs.
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Affiliation(s)
- Michael R Smith
- Department of Chemistry, Princeton University, Princeton, NJ 08544, USA
| | - Clare B Martin
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA
| | - Sonia Arumuganainar
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA
| | - Ari Gilman
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA
| | - Bruce E Koel
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA
| | - Michele L Sarazen
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA
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8
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ZIF-8 base-aptamer "gate-lock" probes enable the visualization of a cascade response between deoxynivalenol and cytochrome c inside living cells. Mikrochim Acta 2022; 190:39. [PMID: 36585487 DOI: 10.1007/s00604-022-05619-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 12/11/2022] [Indexed: 12/31/2022]
Abstract
Zeolitic imidazolate framework (ZIF-8) base-aptamer "gate-lock" biomaterial probes have been synthesized for monitoring intracellular deoxynivalenol (DON) and cytochrome c (cyt c) levels. The aptamer and organic fluorescent dye were regarded as a recognition element and a sensing element, respectively. In the presence of DON, the aptamers of DON and cyt c were specifically bound with the DON and induced cyt c, leading to the dissociation of aptamers from the porous surface of the probes. The gate was subsequently opened to release methylene blue (MB) and Rhodamine 6G (Rh6G), and their fluorescence (emission of MB at 700 nm and Rh6G at 550 nm) significantly recovered within 6 h. Cell imaging successfully monitored the exposure of DON and the biological process of cyt c discharge triggered by the activation of the DON-induced apoptosis pathway. In addition, the response between DON and cyt c was observed during the apoptosis process, which is of high significance for the comprehensive and systematic development of mycotoxins cytotoxicity.
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Synthesis of Porphyrinic Metal-Organic Framework/rGO Nanocomposite for Electrochemical Recognition of Copper Ions in Water. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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10
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Chen S, Li T, Deng D, Ji Y, Li R. Bifunctional Fe@PCN-222 nanozyme-based cascade reaction system: Application in ratiometric fluorescence and colorimetric dual-mode sensing of glucose. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 279:121427. [PMID: 35640471 DOI: 10.1016/j.saa.2022.121427] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/12/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
This work innovatively integrated the peroxidase-mimicking activity and red emission property of Fe@PCN-222 framework, designed a cascade reaction system for dual-mode glucose sensing. The Fe3+ doping significantly improved the catalytic activity of Fe@PCN-222 that can oxidize the substrate o-phenylenediamine (OPD) to generate diminophenazine (DAP) with emission at 566 nm in the presence of H2O2. Similarly, the Fe@PCN-222 was used to catalyze the colorless TMB to produce blue oxidized TMB (oxTMB) showed absorption at 652 nm. When coupled with glucose oxidase (GOx), the linear ranges of ratiometric fluorescence mode and colorimetric mode for glucose sensing were 1-100 and 10-300 μM, respectively. And the limits of detection (LOD) of 0.78 and 2.41 μM for two modes were obtained, respectively. In addition, the practicability of Fe@PCN-222 nanozyme-based cascade reaction system for detection of glucose in human serum and saliva samples was successfully investigated. It is of great importance to integrate more functions into one skeleton to achieve dual-mode and optimal-performance sensing for expanding potential applications.
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Affiliation(s)
- Siqi Chen
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing 210009, China
| | - Tingting Li
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing 210009, China
| | - Donglian Deng
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing 210009, China
| | - Yibing Ji
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing 210009, China.
| | - Ruijun Li
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing 210009, China.
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Luo X, Wang C, Huang G, Tan Y, Tang W, Kong J, Li Z. Bio-inspired chitosan aerogel decorated with MOF-on-COF heterostructure hybrid as recyclable scavenger of herbicides in water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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12
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Han M, Zhang W, Lu L, Ma S, Feng S. Enhanced Ultrasensitive Photoelectrochemical Probe for Phosphate Detection in Water Based on a Zirconium-Porphyrin Framework. ACS APPLIED MATERIALS & INTERFACES 2022; 14:28280-28288. [PMID: 35686366 DOI: 10.1021/acsami.2c04645] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Excessive phosphate poses a serious ecological and human health risk, and thereby, monitoring its trace concentration is of great significance to environmental protection and human health. In this work, a zirconium-porphyrin framework (PCN-222) with excellent stability and unique luminescence properties was designed to modify the surface of the indium tin oxide electrode, which was first used as a photoelectrochemical (PEC) probe for phosphate detection. The PCN-222-modified PEC probe demonstrated an excellent selectivity and stability and indicated a linear response to phosphate in the range of 0-106 nM with a limit of detection (LOD) as low as 1.964 nM. To the best of our knowledge, this is the phosphate probe with the lowest LOD, and this is also the first signal-on PEC probe toward phosphate based on PCN-222. More importantly, the PEC probe can be validated for the good applicability of trace phosphate detection in real water samples, indicating a good application prospect. Finally, a series of electrochemical and spectroscopic studies have proved that phosphate can bind to the indium tin oxide (ITO)/PCN-222 electrode, which shortens the distance of the space charge region while reducing the bandwidth and thus facilitates the transfer of photogenerated electrons across the energy band barrier to reduce O2 in the electrolyte, producing an enhanced cathodic photocurrent signal. The proposed strategy of the highly sensitive PEC probe provides a promising platform for more effective label-free phosphate monitoring in the environment and organisms.
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Affiliation(s)
- Meirong Han
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, P. R. China
| | - Weijie Zhang
- Department of Chemistry, University of North Texas CHEM 305D, 1508 W Mulberry St, Denton, Texas 76201, United States
| | - Liping Lu
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, P. R. China
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Shanxi University, Taiyuan, Shanxi 030006, P. R. China
| | - Shengqian Ma
- Department of Chemistry, University of North Texas CHEM 305D, 1508 W Mulberry St, Denton, Texas 76201, United States
| | - Sisi Feng
- Institute of Molecular Science, Key Laboratory of Chemical Biology and Molecular Engineering of the Education Ministry, Shanxi University, Taiyuan, Shanxi 030006, P. R. China
- Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Shanxi University, Taiyuan, Shanxi 030006, P. R. China
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13
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Synthesis, structure and fluorescence property of a new Zn-MOF based on a tetraphenylethane (TPE) ligand. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130975] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Chen B, Yang Z, Qu X, Zheng S, Yin D, Fu H. Screening and Discrimination of Perfluoroalkyl Substances in Aqueous Solution Using a Luminescent Metal-Organic Framework Sensor Array. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47706-47716. [PMID: 34605622 DOI: 10.1021/acsami.1c15528] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The extensive production and large-scale use of perfluoroalkyl substances (PFASs) have raised their presence in aquatic environments worldwide. Thus, the facile and reliable screening of PFASs in aqueous systems is of great significance. Herein, we designed a novel fluorescent sensor array for the rapid screening and discrimination of multiple PFASs in water. The sensor array comprised three highly stable zirconium porphyrinic luminescent metal-organic frameworks (i.e., PCNs) with different topological structures. The sensing mechanism was based on the static fluorescence quenching of PCNs by PFASs upon their adsorptive interactions. The fluorescence response patterns were characteristic for each PFAS because of their different adsorption affinities toward different PCNs. Through the interpretation of response patterns by statistical methods, the proposed PCN array successfully discriminated six different kinds of PFASs, each PFAS at different concentrations and PFAS mixtures at different molar ratios. The practicability of this array was further verified by effectively discriminating PFASs in two real water samples. Remarkably, the PCN sensors exhibited a very short response time toward PFASs (within 10 s) due to the ordered pore structure allowing fast PFAS diffusion. This study not only provides a facile method for rapid PFAS screening in waters but also broadens the application of luminescent metal-organic frameworks and array techniques in sensing fields.
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Affiliation(s)
- Beining Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Zhengshuang Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Xiaolei Qu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Shourong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Daqiang Yin
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Heyun Fu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
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