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Xue YS, Tian ZC, Zhang XY, Wang WJ, Dai JH, Chen RQ, Xu XJ, Wang J. Three coordination polymers based on 4,4'-bis(2-methylimidazol-1-yl)diphenyl ether: Synthesis, structure and selective fluorescent sensing properties. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 316:124340. [PMID: 38676986 DOI: 10.1016/j.saa.2024.124340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 03/06/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
Three CPs [Zn2(PDA)2(BMIOPE)2·3H2O]n (1), [Co(Br-BDC)(BMIOPE)]n (2) and [Co(MIP)(BMIOPE)]n (3) were synthesized by solvothermal method based on dual-ligand strategy (H2PDA, Br-H2BDC, BMIOPE and H2MIP are 1,3-phenylenediacetic acid, 5-bromo-isophthalic acid, 4,4'-bis(2-methylimidazol-1-yl)diphenyl ether and 5-methylisophthalic acid, respectively). Complexes 1 and 3 exhibit twofold parallel interwoven sql nets. Complex 2 is 2D layer structure. The luminescence property investigations showed that complexes 1-3 could act as multi-responsive fluorescent sensors to detect UO22+, Cr2O72- and CrO42- and nitrofurantoin (NFT) through fluorescence turn-off process, presenting excellent sensitivity and selectivity. Finally, the possible fluorescent quenching mechanisms of complexes 1-3 toward the above pollutants are also further investigated by employing spectroscopic methods and quantum chemical calculations. The fluorescence lifetime measurements manifest the mechanism of fluorescence quenching is static quenching process.
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Affiliation(s)
- Yun-Shan Xue
- School of Chemistry & Environmental Engineering, Yancheng Teachers University, Yancheng 224007, PR China.
| | - Zheng-Chen Tian
- School of Chemistry & Environmental Engineering, Yancheng Teachers University, Yancheng 224007, PR China
| | - Xin-Yue Zhang
- School of Chemistry & Environmental Engineering, Yancheng Teachers University, Yancheng 224007, PR China
| | - Wen-Jing Wang
- School of Chemistry & Environmental Engineering, Yancheng Teachers University, Yancheng 224007, PR China
| | - Jia-Hao Dai
- School of Chemistry & Environmental Engineering, Yancheng Teachers University, Yancheng 224007, PR China
| | - Rui-Qi Chen
- School of Chemistry & Environmental Engineering, Yancheng Teachers University, Yancheng 224007, PR China
| | - Xiao-Juan Xu
- School of Chemistry & Environmental Engineering, Yancheng Teachers University, Yancheng 224007, PR China
| | - Jun Wang
- School of Chemistry & Environmental Engineering, Yancheng Teachers University, Yancheng 224007, PR China.
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Zhao D, Li W, Li W, Liu X, Yang J, Lu F, Zhang X, Fan L. Eu(III) functionalized ZnMOF based efficient dual-emission sensor integrated with self-calibrating logic gate for intelligent detection of epinephrine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 315:124254. [PMID: 38593542 DOI: 10.1016/j.saa.2024.124254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/23/2024] [Accepted: 04/02/2024] [Indexed: 04/11/2024]
Abstract
The rapid detection of epinephrine (EPI) in serum holds immense importance in the early disease diagnosis and regular monitoring. On the basis of the coordination post-synthetic modification (PSM) strategy, a Eu3+ functionalized ZnMOF (Eu3+@ZnMOF) was fabricated by anchoring the Eu3+ ions within the microchannels of ZnMOF as secondary luminescent centers. Benefiting from two independent luminescent centers, the prepared Eu3+@ZnMOF shows great potential as a multi-signal self-calibrating luminescent sensor in visually and efficiently detecting serum EPI levels, with high reliability, fast response time, excellentrecycleability, and low detection limits of 17.8 ng/mL. Additionally, an intelligent sensing system was designed in accurately and reliably detecting serum EPI levels, based on the designed self-calibrating logic gates. Furthermore, the possible sensing mechanisms were elucidated through theoretical calculations as well as spectral overlaps. This work provides an effective and promising strategy for developing MOFs-based self-calibrating intelligent sensing platforms to detect bioactive molecules in bodily fluids.
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Affiliation(s)
- Dongsheng Zhao
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, PR China; College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - Wencui Li
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, PR China
| | - Wenqian Li
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, PR China
| | - Xin Liu
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, PR China
| | - Jingyao Yang
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, PR China
| | - Feiyu Lu
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, PR China
| | - Xiutang Zhang
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, PR China.
| | - Liming Fan
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, PR China.
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Wang S, Sun L, Gao H, Zhang W. A Novel Zn(II) Coordination Polymer: Fluorescence Performances, Molecular Docking and Loaded with Bleomycin-Hydrogels on Hemangiomas. J Fluoresc 2024:10.1007/s10895-024-03641-9. [PMID: 38451363 DOI: 10.1007/s10895-024-03641-9] [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: 12/09/2023] [Accepted: 02/26/2024] [Indexed: 03/08/2024]
Abstract
In this study, we successfully synthesized an innovative 1D-Zn(II) coordination polymer, denoted as [Zn(L)(H2O)2]n, employing the Schiff base {4-[(2-hydroxy-3-methoxy-benzylidene)-amino]-benzoic acid} (H2L). The Schiff base was obtained through the reaction of 4-aminobenzoic acid and o-vanillin under slow volatilization conditions. The resulting compound exhibits remarkable green fluorescence emission properties, indicating its potential as a novel fluorescent and sensing material. Hydrogels based on hyaluronic acid (HA) and carboxymethyl chitosan (CMCS), denoted as HA/CMCS hydrogels, were synthesized using a chemical method. Additionally, we utilized bleomycin as a model drug to synthesize a novel bleomycin metal gel and assessed its anti-hemangioma activity. Molecular docking simulations revealed that the Zn complex can form stable bonds with the key target, involving the methoxy and carboxyl groups on the Zn complex.
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Affiliation(s)
- Shengquan Wang
- Department of Vascular Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lei Sun
- Department of Vascular Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hongxia Gao
- Department of Vascular Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenpei Zhang
- Department of Vascular Surgery, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, China.
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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Sun X, Li C, Meng X, Wang D, Zheng C. Multiresponsive luminescent sensors for antibiotics and Cr VI with two luminescent Zn II/Cd II coordination complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 306:123615. [PMID: 37948933 DOI: 10.1016/j.saa.2023.123615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/30/2023] [Accepted: 11/02/2023] [Indexed: 11/12/2023]
Abstract
Two new ZnII/CdII luminescent coordination polymers (CPs) based on the V-shaped bis(imidazole) ligand 3,6-bis (1H-benzo[d]imidazol-1-yl)-9-methyl-9H-carbazole (bbimc) with [1,1'-biphenyl]-4,4'-dicarboxylic acid ligand (H2bpdc) have been synthesized under solvothermal conditions: {[Zn(bbimc)(bpdc)]·DMF·2.5H2O} (CP 1), {[Cd(bbimc)(bpdc)]·2DMF} (CP 2). CP 1 and CP 2 both display a uninodal 4-c unimodal sql topology 2D framework with vertex symbols of {44·62}. In addition, the two identical 2D nets of CP 2 were interpenetrated each other to form a 2D + 2D → 3D and generate a 2-fold interpenetrating architecture. Moreover, sensing investigations of CP 1 and CP 2 revealed that both of compounds can be used as a highly sensitive and selective multi-responsive luminescent sensor for sensing Cr2O72-, CrO42- and antibiotics (TC: Tetracycline; CTC: Chlortetracycline) in H2O by exhibiting fluorescence quenching with significant quenching constants (Ksv = 1.369 × 104 M-1 (Cr2O72-), 2.003 × 104 M-1 (CrO42-), 5.343 × 104 M-1 (TC), 8.706 × 104 M-1 (CTC) for CP 1 and 4.452 × 104 M-1 (Cr2O72-), 2.119 × 104 M-1 (CrO42-), 4.175 × 104 M-1 (TC), 1.257 × 105 M-1 (CTC) for CP 2). The detection limit are 0.67 μM (Cr2O72-), 0.48 μM (Cr2O72-), 0.23 μM (TC), 0.14 μM (CTC) for CP 1 and 0.28 μM (Cr2O72-), 0.54 μM (CrO42-), 0.31 μM (TC), 0.098 μM (CTC) for CP 2, respectively. In addition, the probable fluorescence quenching mechanism was studied through experiment and theoretical calculation and the co-existance of competitive absorption (CA) and photoinduced electron transfer (PET) progress contributed to such sensing processes.
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Affiliation(s)
- Xuancheng Sun
- Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, PR China
| | - Chaoxiong Li
- Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, PR China
| | - Xianggao Meng
- College of Chemistry, Central China Normal University, Wuhan 430079, PR China
| | - Dunjia Wang
- Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, PR China
| | - Chunyang Zheng
- Hubei Key Laboratory of Pollutant Analysis and Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, PR China.
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Zhang Z, Huang Z, Qin D, Liu D, Guo X, Lin H. Fluorescent starch-based hydrogel with cellulose nanofibrils and carbon dots for simultaneous adsorption and detection of Pb(II). Carbohydr Polym 2024; 323:121427. [PMID: 37940256 DOI: 10.1016/j.carbpol.2023.121427] [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: 05/18/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 11/10/2023]
Abstract
The adsorption removal of lead (Pb) ions has become a crucial area of research due to the potential health hazards associated with Pb contamination. Developing cost-effective adsorbents for the removal of Pb(II) ions is significantly important. Hence, a novel fluorescent starch-based hydrogel (FSH) using starch (ST), cellulose nanofibrils (CN), and carbon dots (CD) was fabricated for simultaneous adsorption and detection of Pb(II). A comprehensive characterization of FSH, including its morphological features, chemical composition, and fluorescence characteristics, was conducted. Notably, FSH exhibited a maximum theoretical adsorption capacity of 265.9 mg/g, which was 13.0 times higher than that of pure ST. Moreover, FSH was employed as a fluorescent sensor for Pb(II) determination, achieving a limit of detection (LOD) of 0.06 μg/L. An analysis was further performed to investigate the adsorption and detection mechanisms of Pb(II) utilizing FSH. This study provides valuable insights into the production of a novel cost-effective ST-based adsorbent for the removal of Pb(II) ions.
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Affiliation(s)
- Zhixu Zhang
- State Key Laboratory of Subhealth Intervention Technology, 410128 Changsha, Hunan, China; College of Horticulture, Hunan Agricultural University, 410128 Changsha, Hunan, China
| | - Zhengwu Huang
- College of Food Science and Technology, Hunan Agricultural University, 410128 Changsha, Hunan, China
| | - Dan Qin
- College of Food Science and Technology, Hunan Agricultural University, 410128 Changsha, Hunan, China
| | - Dongbo Liu
- State Key Laboratory of Subhealth Intervention Technology, 410128 Changsha, Hunan, China; College of Horticulture, Hunan Agricultural University, 410128 Changsha, Hunan, China
| | - Xin Guo
- College of Science, Central South University of Forestry and Technology, 410004 Changsha, Hunan, China.
| | - Haiyan Lin
- National Research Center of Engineering Technology for Utilization Ingredients from Botanicals, 410128 Changsha, Hunan, China
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Yuan C, Qiao Y, Zhang Z, Chai Y, Zhang X, Dong X, Zhao Y. Studying Fluorescence Sensing of Acetone and Tryptophan and Antibacterial Properties Based on Zinc-Based Triple Interpenetrating Metal-Organic Skeletons. Molecules 2023; 28:7315. [PMID: 37959734 PMCID: PMC10648533 DOI: 10.3390/molecules28217315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
Two triple interpenetrating Zn(II)-based MOFs were studied in this paper. Named [Zn6(1,4-bpeb)4(IPA)6(H2O)]n (MOF-1) and {[Zn3(1,4-bpeb)1.5(DDBA)3]n·2DMF} (MOF-2), {1,4-bpeb = 1,4-bis [2-(4-pyridy1) ethenyl]benze, IPA = Isophthalic acid, DDBA = 3,3'-Azodibenzoic acid}, they were synthesized by the hydrothermal method and were characterized and stability tested. The results showed that MOF-1 had good acid-base stability and solvent stability. Furthermore, MOF-1 had excellent green fluorescence and with different phenomena in different solvents, which was almost completely quenched in acetone. Based on this phenomenon, an acetone sensing test was carried out, where the detection limit of acetone was calculated to be 0.00365% (volume ratio). Excitingly, the MOF-1 could also be used as a proportional fluorescent probe to specifically detect tryptophan, with a calculated detection limit of 34.84 μM. Furthermore, the mechanism was explained through energy transfer and competitive absorption (fluorescence resonance energy transfer (FRET)) and internal filtration effect (IFE). For antibacterial purposes, the minimum inhibitory concentrations of MOF-1 against Escherichia coli and Staphylococcus aureus were 19.52 µg/mL and 39.06 µg/mL, respectively, and the minimum inhibitory concentrations of MOF-2 against Escherichia coli and Staphylococcus aureus were 68.36 µg/mL and 136.72 µg/mL, respectively.
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Affiliation(s)
- Congying Yuan
- School of Life Science, Luoyang Normal University, 6 Jiqing Road, Luoyang 471934, China; (C.Y.); (X.Z.); (X.D.)
| | - Yidan Qiao
- Henan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China; (Y.Q.); (Z.Z.); (Y.C.)
- College of Materials and Chemical Engineering, China Three Gorges University, No. 8, Daxue Road, Yichang 443002, China
| | - Zhaolei Zhang
- Henan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China; (Y.Q.); (Z.Z.); (Y.C.)
| | - Yinhang Chai
- Henan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China; (Y.Q.); (Z.Z.); (Y.C.)
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaojun Zhang
- School of Life Science, Luoyang Normal University, 6 Jiqing Road, Luoyang 471934, China; (C.Y.); (X.Z.); (X.D.)
| | - Xiaojing Dong
- School of Life Science, Luoyang Normal University, 6 Jiqing Road, Luoyang 471934, China; (C.Y.); (X.Z.); (X.D.)
| | - Ying Zhao
- Henan Province Function-Oriented Porous Materials Key Laboratory, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China; (Y.Q.); (Z.Z.); (Y.C.)
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Yin J, Li W, Li W, Liu L, Zhao D, Liu X, Hu T, Fan L. Heterometallic ZnHoMOF as a Dual-Responsive Luminescence Sensor for Efficient Detection of Hippuric Acid Biomarker and Nitrofuran Antibiotics. Molecules 2023; 28:6274. [PMID: 37687103 PMCID: PMC10488516 DOI: 10.3390/molecules28176274] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/17/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Developing efficient and sensitive MOF-based luminescence sensors for bioactive molecule detection is of great significance and remains a challenge. Benefiting from favorable chemical and thermal stability, as well as excellent luminescence performance, a porous Zn(II)Ho(III) heterometallic-organic framework (ZnHoMOF) was selected here as a bifunctional luminescence sensor for the early diagnosis of a toluene exposure biomarker of hippuric acid (HA) through "turn-on" luminescence enhancing response and the daily monitoring of NFT/NFZ antibiotics through "turn-off" quenching effects in aqueous media with high sensitivity, acceptable selectivity, good anti-interference, exceptional recyclability performance, and low detection limits (LODs) of 0.7 ppm for HA, 0.04 ppm for NFT, and 0.05 ppm for NFZ. Moreover, the developed sensor was employed to quantify HA in diluted urine samples and NFT/NFZ in natural river water with satisfactory results. In addition, the sensing mechanisms of ZnHoMOF as a dual-response chemosensor in efficient detection of HA and NFT/NFZ antibiotics were conducted from the view of photo-induced electron transfer (PET), as well as inner filter effects (IFEs), with the help of time-dependent density functional theory (TD-DFT) and spectral overlap experiments.
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Affiliation(s)
- Jingrui Yin
- Shanxi Key Laboratory of Advanced Carbon Electrode Materials, Shanxi Coal Mine Water Treatment Technology Innovation Center, School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China; (J.Y.)
| | - Wenqian Li
- Shanxi Key Laboratory of Advanced Carbon Electrode Materials, Shanxi Coal Mine Water Treatment Technology Innovation Center, School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China; (J.Y.)
| | - Wencui Li
- Shanxi Key Laboratory of Advanced Carbon Electrode Materials, Shanxi Coal Mine Water Treatment Technology Innovation Center, School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China; (J.Y.)
| | - Liying Liu
- Shanxi Key Laboratory of Advanced Carbon Electrode Materials, Shanxi Coal Mine Water Treatment Technology Innovation Center, School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China; (J.Y.)
| | - Dongsheng Zhao
- Shanxi Key Laboratory of Advanced Carbon Electrode Materials, Shanxi Coal Mine Water Treatment Technology Innovation Center, School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China; (J.Y.)
| | - Xin Liu
- Shanxi Key Laboratory of Advanced Carbon Electrode Materials, Shanxi Coal Mine Water Treatment Technology Innovation Center, School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China; (J.Y.)
| | - Tuoping Hu
- Shanxi Key Laboratory of Advanced Carbon Electrode Materials, Shanxi Coal Mine Water Treatment Technology Innovation Center, School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China; (J.Y.)
| | - Liming Fan
- Shanxi Key Laboratory of Advanced Carbon Electrode Materials, Shanxi Coal Mine Water Treatment Technology Innovation Center, School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China; (J.Y.)
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, China
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Wang Q, Jia Q, Hu P, Ji L. Tunable Non-Enzymatic Glucose Electrochemical Sensing Based on the Ni/Co Bimetallic MOFs. Molecules 2023; 28:5649. [PMID: 37570619 PMCID: PMC10420269 DOI: 10.3390/molecules28155649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/19/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Constructing high-performance glucose sensors is of great significance for the prevention and diagnosis of diabetes, and the key is to develop new sensitive materials. In this paper, a series of Ni2Co1-L MOFs (L = H2BPDC: 4,4'-biphenyldicarboxylic acid; H2NDC: 2,6-naphthalenedicarboxylic acid; H2BDC: 1,4-benzenedicarboxylic acid) were synthesized by a room temperature stirring method. The effects of metal centers and ligands on the structure, compositions, electrochemical properties of the obtained Ni2Co1-L MOFs were characterized, indicating the successful preparation of layered MOFs with different sizes, stacking degrees, electrochemical active areas, numbers of exposed active sites, and glucose catalytic activity. Among them, Ni2Co1-BDC exhibits a relatively thin and homogeneous plate-like morphology, and the Ni2Co1-BDC modified glassy carbon electrode (Ni2Co1-BDC/GCE) has the highest electrochemical performance. Furthermore, the mechanism of the enhanced glucose oxidation signal was investigated. It was shown that glucose has a higher electron transfer capacity and a larger apparent catalytic rate constant on the Ni2Co1-BDC/GCE surface. Therefore, tunable non-enzymatic glucose electrochemical sensing was carried out by regulating the metal centers and ligands. As a result, a high-sensitivity enzyme-free glucose sensing platform was successfully constructed based on the Ni2Co1-BDC/GCE, which has a wide linear range of 0.5-2899.5 μM, a low detection limit of 0.29 μM (S/N = 3), and a high sensitivity of 3925.3 μA mM-1 cm-2. Much more importantly, it was also successfully applied to the determination of glucose in human serum with satisfactory results, demonstrating its potential for glucose detection in real samples.
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Affiliation(s)
- Qi Wang
- School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China; (Q.W.); (Q.J.)
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Hubei University of Science and Technology, Xianning 437100, China
| | - Qi Jia
- School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China; (Q.W.); (Q.J.)
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Hubei University of Science and Technology, Xianning 437100, China
| | - Peng Hu
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Hubei University of Science and Technology, Xianning 437100, China
| | - Liudi Ji
- Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Hubei University of Science and Technology, Xianning 437100, China
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Wang S, Wu H, Luo J, Han X, Liu M, Liu L. A multifunctional cucurbit[6]uril-based supramolecular assembly for fluorescence sensing of TNP and Ba 2+ and information encryption. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122835. [PMID: 37209472 DOI: 10.1016/j.saa.2023.122835] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/02/2023] [Accepted: 05/05/2023] [Indexed: 05/22/2023]
Abstract
Both nitroaromatic compounds (NACs) and heavy metal ions are accumulative high-risk environmental pollutants, so high-sensitivity detection of these environment pollutants is necessary. In this work, a cucurbit[6]uril (CB[6]) based luminescent supramolecular assembly [Na2K2(CB[6])2(DMF)2(ANS)(H2O)4](1) (CB[6] = cucurbit[6]uril, ANS2- = 8-Aminonaphthalene-1,3,6-trisulfonic acid ion) has been synthesized under solvothermal conditions, using ANS2- as a structural inducer. Performance studies have shown that 1 exhibits excellent chemical stability and easy regeneration ability. It can highly selective sensing of 2,4,6-trinitrophenol (TNP) through fluorescence quenching with a strong quenching constant (Ksv = 2.58 × 104 M-1). Additionally, the fluorescence emission of 1 can be effectively enhanced with Ba2+ in aqueous solution (Ksv = 5.57 × 103 M-1). More impressively, Ba2+@1 was successfully used as anti-counterfeiting fluorescent ink functional material with strong information encryption function. This work illustrates the application prospects of luminescent CB[6]-based supramolecular assembly in environmental pollutants detection and information anti-counterfeiting for the first time, which extends the multifunctional application scope of CB[6]-based supramolecular assembly.
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Affiliation(s)
- Shuo Wang
- School of Chemistry and Life Science, Advanced Institute of materials Science, Changchun University of Technology, Changchun 130012, PR China
| | - Haijiao Wu
- School of Chemistry and Life Science, Advanced Institute of materials Science, Changchun University of Technology, Changchun 130012, PR China
| | - Jieqian Luo
- School of Chemistry and Life Science, Advanced Institute of materials Science, Changchun University of Technology, Changchun 130012, PR China
| | - Xiaodong Han
- School of Chemistry and Life Science, Advanced Institute of materials Science, Changchun University of Technology, Changchun 130012, PR China
| | - Mei Liu
- School of Chemistry and Life Science, Advanced Institute of materials Science, Changchun University of Technology, Changchun 130012, PR China
| | - Lihui Liu
- Institute of Chemical and Industrial Bioengineering, Jilin Engineering Normal University, Changchun 130052, PR China.
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