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Zhang Y, Zhang C, Qian W, Lei F, Chen Z, Wu X, Lin Y, Wang F. Recent advances in MOF-based nanozymes: Synthesis, activities, and bioapplications. Biosens Bioelectron 2024; 263:116593. [PMID: 39059178 DOI: 10.1016/j.bios.2024.116593] [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: 02/23/2024] [Revised: 07/16/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024]
Abstract
Nanozymes have garnered considerable research interest for their unique capacity to bridge nanotechnology and biology. Current studies predominantly concentrate on exploring nanozymes with diverse catalytic activities and their potential applications across various disciplines. Among them, nanoscale metal-organic frameworks (MOFs) are promising nanomaterials for constructing nanozymes. In this review, we firstly introduce the general construction strategies for MOF-based nanozymes. In addition, we also classify the MOF-based nanozymes in detail based on their catalytic performance. Thirdly, the recent research progress of MOF-based nanozymes in the field of biosensing, cancer therapy, antibacterial infection, and antioxidation are also comprehensively reviewed. Finally, we discuss the current challenges and future perspectives of MOF-based nanozymes, with the aim of assisting in their construction and maximizing their potential in bioapplications. It is hoped that we could provide scientists in materials science and biomedical research with valuable and comprehensive information, fostering advancements in interdisciplinary fields.
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Affiliation(s)
- Yan Zhang
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China.
| | - Chengfeng Zhang
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China
| | - Wanlong Qian
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China
| | - Fang Lei
- School of Public Health, Nantong University, Nantong, 226019, China
| | - Zhongping Chen
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China
| | - Xiaomei Wu
- Institute of Special Environmental Medicine, Nantong University, Nantong, 226019, China
| | - Youhui Lin
- Department of Physics, Xiamen University, Xiamen, 361005, China.
| | - Faming Wang
- School of Public Health, Nantong University, Nantong, 226019, China.
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2
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Hu Z, Shan J, Jin X, Sun W, Cheng L, Chen XL, Wang X. Nanoarchitectonics of in Situ Antibiotic-Releasing Acicular Nanozymes for Targeting and Inducing Cuproptosis-like Death to Eliminate Drug-Resistant Bacteria. ACS NANO 2024. [PMID: 39169538 DOI: 10.1021/acsnano.4c06565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
A series of progress has been made in the field of antimicrobial use of nanozymes due to their superior stability and decreased susceptibility to drug resistance. However, catalytically generated reactive oxygen species (ROS) are insufficient for coping with multidrug-resistant organisms (MDROs) in complex wound environments due to their low targeting ability and insufficient catalytic activity. To address this problem, chemically stable copper-gallic acid-vancomycin (CuGA-VAN) nanoneedles were successfully constructed by a simple approach for targeting bacteria; these nanoneedles exhibit OXD-like and GSH-px-like dual enzyme activities to produce ROS and induce bacterial cuproptosis-like death, thereby eliminating MDRO infections. The results of in vitro experiments showed that the free carboxylic acid of GA could react with the free ammonia of teichoic acid in the methicillin-resistant Staphylococcus aureus (MRSA) cell wall skeleton. Thus, CuGA-VAN nanoneedles can rapidly "capture" MRSA in liquid environments, releasing ROS, VAN and Cu2+ on bacterial surfaces to break down the MRSA barrier, destroying the biofilm. In addition, CuGA-VAN effectively promoted wound repair cell proliferation and angiogenesis to facilitate wound healing while ensuring biosafety. According to transcriptome sequencing, highly internalized Cu2+ causes copper overload toxicity; downregulates genes related to the bacterial glyoxylate cycle, tricarboxylic acid cycle, and oxidative respiratory chain; and induces lipid peroxidation in the cytoplasm, leading to bacterial cuproptosis-like death. In this study, CuGA-VAN was cleverly designed to trigger a cascade reaction of targeting, drug release, ROS-catalyzed antibacterial activity and cuproptosis-like death. This provides an innovative idea for multidrug-resistant infections.
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Affiliation(s)
- Zhiyuan Hu
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Jie Shan
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Xu Jin
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Weijie Sun
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Medical University, Hefei 230032, P. R. China
| | - Liang Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Xu-Lin Chen
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
| | - Xianwen Wang
- Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, P. R. China
- School of Biomedical Engineering, Research and Engineering Center of Biomedical Materials, Anhui Medical University, Hefei 230032, P. R. China
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Feng K, Wang G, Wang S, Ma J, Wu H, Ma M, Zhang Y. Breaking the pH Limitation of Nanozymes: Mechanisms, Methods, and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401619. [PMID: 38615261 DOI: 10.1002/adma.202401619] [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: 01/30/2024] [Revised: 04/09/2024] [Indexed: 04/15/2024]
Abstract
Although nanozymes have drawn great attention over the past decade, the activities of peroxidase-like, oxidase-like, and catalase-like nanozymes are often pH dependent with elusive mechanism, which largely restricts their application. Therefore, a systematical discussion on the pH-related catalytic mechanisms of nanozymes together with the methods to overcome this limitation is in need. In this review, various nanozymes exhibiting pH-dependent catalytic activities are collected and the root causes for their pH dependence are comprehensively analyzed. Subsequently, regulatory concepts including catalytic environment reconstruction and direct catalytic activity improvement to break this pH restriction are summarized. Moreover, applications of pH-independent nanozymes in sensing, disease therapy, and pollutant degradation are overviewed. Finally, current challenges and future opportunities on the development of pH-independent nanozymes are suggested. It is anticipated that this review will promote the further design of pH-independent nanozymes and broaden their application range with higher efficiency.
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Affiliation(s)
- Kaizheng Feng
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Basic Medicine Research and Innovation Center of Ministry of Education, Zhongda hospital, Southeast University, Nanjing, 211102, P. R. China
| | - Guancheng Wang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Basic Medicine Research and Innovation Center of Ministry of Education, Zhongda hospital, Southeast University, Nanjing, 211102, P. R. China
| | - Shi Wang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Basic Medicine Research and Innovation Center of Ministry of Education, Zhongda hospital, Southeast University, Nanjing, 211102, P. R. China
| | - Jingyuan Ma
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Basic Medicine Research and Innovation Center of Ministry of Education, Zhongda hospital, Southeast University, Nanjing, 211102, P. R. China
| | - Haoan Wu
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Basic Medicine Research and Innovation Center of Ministry of Education, Zhongda hospital, Southeast University, Nanjing, 211102, P. R. China
| | - Ming Ma
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Basic Medicine Research and Innovation Center of Ministry of Education, Zhongda hospital, Southeast University, Nanjing, 211102, P. R. China
| | - Yu Zhang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Basic Medicine Research and Innovation Center of Ministry of Education, Zhongda hospital, Southeast University, Nanjing, 211102, P. R. China
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4
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Guo L, Kong W, Che Y, Liu C, Zhang S, Liu H, Tang Y, Yang X, Zhang J, Xu C. Research progress on antibacterial applications of metal-organic frameworks and their biomacromolecule composites. Int J Biol Macromol 2024; 261:129799. [PMID: 38296133 DOI: 10.1016/j.ijbiomac.2024.129799] [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: 11/05/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/03/2024]
Abstract
With the extensive use of antibiotics, resulting in increasingly serious problems of bacterial resistance, antimicrobial therapy has become a global concern. Metal-organic frameworks (MOFs) are low-density porous coordination materials composed of metal ions and organic ligands, which can form composite materials with biomacromolecules such as proteins and polysaccharides. In recent years, MOFs and their derivatives have been widely used in the antibacterial field as efficient antibacterial agents. This review offers a detailed summary of the antibacterial applications of MOFs and their composites, and the different synthesis methods and antibacterial mechanisms of MOFs and MOF-based composites are briefly introduced. Finally, the challenges and prospects of MOFs-based antibacterial materials in the rapidly developing medical field were briefly discussed. We hope this review will provide new strategies for the medical application of MOFs-based antibacterial materials.
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Affiliation(s)
- Lei Guo
- College of Basic Medical Sciences, Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, Jilin, China
| | - Wei Kong
- Radiation Medicine, School of Public Health, Jilin University, Changchun 130021, Jilin, China
| | - Yilin Che
- Radiation Medicine, School of Public Health, Jilin University, Changchun 130021, Jilin, China
| | - Chang Liu
- College of Basic Medical Sciences, Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, Jilin, China; Department of Neurology and Neuroscience Center, First Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Shichen Zhang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun 130021, Jilin, China
| | - Heshi Liu
- Department of Gastrocolorectal Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun 130021, Jilin, China
| | - Yixin Tang
- College of Basic Medical Sciences, Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, Jilin, China
| | - Xi Yang
- College of Basic Medical Sciences, Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, Jilin, China
| | - Jizhou Zhang
- College of Basic Medical Sciences, Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, Jilin, China
| | - Caina Xu
- College of Basic Medical Sciences, Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun 130021, Jilin, China.
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Chi Z, Gu J, Li H, Wang Q. Recent progress of metal-organic framework-based nanozymes with oxidoreductase-like activity. Analyst 2024; 149:1416-1435. [PMID: 38334683 DOI: 10.1039/d3an01995k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Nanozymes, a class of synthetic nanomaterials possessing enzymatic catalytic properties, exhibit distinct advantages such as exceptional stability and cost-effectiveness. Among them, metal-organic framework (MOF)-based nanozymes have garnered significant attention due to their large specific surface area, tunable pore size and uniform structure. MOFs are porous crystalline materials bridged by inorganic metal ions/clusters and organic ligands, which hold immense potential in the fields of catalysis, sensors and drug carriers. The combination of MOFs with diverse nanomaterials gives rise to various types of MOF-based nanozyme, encompassing original MOFs, MOF-based nanozymes with chemical modifications, MOF-based composites and MOF derivatives. It is worth mentioning that the metal ions and organic ligands in MOFs are perfectly suited for designing oxidoreductase-like nanozymes. In this review, we intend to provide an overview of recent trends and progress in MOF-based nanozymes with oxidoreductase-like activity. Furthermore, the current obstacles and prospective outlook of MOF-based nanozymes are proposed and briefly discussed. This comprehensive analysis aims to facilitate progress in the development of novel MOF-based nanozymes with oxidoreductase-like activity while serving as a valuable reference for scientists engaged in related disciplines.
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Affiliation(s)
- Zhongmei Chi
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning Province, 121013, P. R. China.
| | - Jiali Gu
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning Province, 121013, P. R. China.
| | - Hui Li
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning Province, 121013, P. R. China.
| | - Qiong Wang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, Liaoning Province, 121013, P. R. China.
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Baranwal A, Polash SA, Aralappanavar VK, Behera BK, Bansal V, Shukla R. Recent Progress and Prospect of Metal-Organic Framework-Based Nanozymes in Biomedical Application. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:244. [PMID: 38334515 PMCID: PMC10856890 DOI: 10.3390/nano14030244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 02/10/2024]
Abstract
A nanozyme is a nanoscale material having enzyme-like properties. It exhibits several superior properties, including low preparation cost, robust catalytic activity, and long-term storage at ambient temperatures. Moreover, high stability enables repetitive use in multiple catalytic reactions. Hence, it is considered a potential replacement for natural enzymes. Enormous research interest in nanozymes in the past two decades has made it imperative to look for better enzyme-mimicking materials for biomedical applications. Given this, research on metal-organic frameworks (MOFs) as a potential nanozyme material has gained momentum. MOFs are advanced hybrid materials made of inorganic metal ions and organic ligands. Their distinct composition, adaptable pore size, structural diversity, and ease in the tunability of physicochemical properties enable MOFs to mimic enzyme-like activities and act as promising nanozyme candidates. This review aims to discuss recent advances in the development of MOF-based nanozymes (MOF-NZs) and highlight their applications in the field of biomedicine. Firstly, different enzyme-mimetic activities exhibited by MOFs are discussed, and insights are given into various strategies to achieve them. Modification and functionalization strategies are deliberated to obtain MOF-NZs with enhanced catalytic activity. Subsequently, applications of MOF-NZs in the biosensing and therapeutics domain are discussed. Finally, the review is concluded by giving insights into the challenges encountered with MOF-NZs and possible directions to overcome them in the future. With this review, we aim to encourage consolidated efforts across enzyme engineering, nanotechnology, materials science, and biomedicine disciplines to inspire exciting innovations in this emerging yet promising field.
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Affiliation(s)
- Anupriya Baranwal
- Sir Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC 3000, Australia (V.B.)
| | - Shakil Ahmed Polash
- Sir Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC 3000, Australia (V.B.)
| | - Vijay Kumar Aralappanavar
- NanoBiosensor Laboratory, Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700120, West Bengal, India
| | - Bijay Kumar Behera
- NanoBiosensor Laboratory, Aquatic Environmental Biotechnology and Nanotechnology Division, ICAR-Central Inland Fisheries Research Institute, Barrackpore, Kolkata 700120, West Bengal, India
| | - Vipul Bansal
- Sir Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC 3000, Australia (V.B.)
| | - Ravi Shukla
- Sir Ian Potter NanoBioSensing Facility, NanoBiotechnology Research Laboratory, School of Science, RMIT University, Melbourne, VIC 3000, Australia (V.B.)
- Centre for Advanced Materials & Industrial Chemistry, RMIT University, Melbourne, VIC 3000, Australia
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Liu Z, Wu R, Jiang Y, Qi L, Liu J, Du M, Wang J, Liu L, Feng G, Zhang L. Propelling CuCo-based nanozyme design to new heights through triple enzyme-like power for high-efficiency bacterial eradication. Colloids Surf B Biointerfaces 2024; 233:113644. [PMID: 37979479 DOI: 10.1016/j.colsurfb.2023.113644] [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: 09/21/2023] [Revised: 11/01/2023] [Accepted: 11/09/2023] [Indexed: 11/20/2023]
Abstract
Bacterial infection-related diseases are a serious issue that threatens human health, and it is highly desirable to develop a high-performance antibacterial agent to combat it. Herein, copper/cobalt-based metal sulfide nanoparticles (CCS NPs) as a new kind of antibacterial nanozyme were prepared by a facile hydrothermal method. Owing to its rich chemical states, the CCS NPs with intrinsic peroxidase- and oxidase-like activities could generate reactive oxygen species (ROS) to exert bactericidal capacity. The CCS NPs could also rapidly deplete glutathione (GSH) to aggravate the oxidative stress in bacteria, thus enhancing the sterilization effect. The results showed that, with the assistance of H2O2 at low concentrations, CCS NPs possessing peroxidase-like, oxidase-like, and GSH depletion activities could achieve remarkable antibacterial effects in vitro. The in vivo implantation demonstrated that CCS NPs with triple enzyme-like activities had efficient bacteria elimination and good biocompatibility in treating bacteria-infected wounds, indicating its wide potential application in the non-antibiotic treatment of bacteria-infected wounds.
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Affiliation(s)
- Zheng Liu
- Analytical & Testing Center, West China Hospital & Department of Orthopedics Surgery and Orthopedic Research Institute, Chengdu 610065, China
| | - Ruibang Wu
- Analytical & Testing Center, West China Hospital & Department of Orthopedics Surgery and Orthopedic Research Institute, Chengdu 610065, China
| | - Yulin Jiang
- Analytical & Testing Center, West China Hospital & Department of Orthopedics Surgery and Orthopedic Research Institute, Chengdu 610065, China
| | - Lin Qi
- Analytical & Testing Center, West China Hospital & Department of Orthopedics Surgery and Orthopedic Research Institute, Chengdu 610065, China
| | - Jiangshan Liu
- Analytical & Testing Center, West China Hospital & Department of Orthopedics Surgery and Orthopedic Research Institute, Chengdu 610065, China
| | - Meixuan Du
- Analytical & Testing Center, West China Hospital & Department of Orthopedics Surgery and Orthopedic Research Institute, Chengdu 610065, China
| | - Jing Wang
- Analytical & Testing Center, West China Hospital & Department of Orthopedics Surgery and Orthopedic Research Institute, Chengdu 610065, China
| | - Limin Liu
- Analytical & Testing Center, West China Hospital & Department of Orthopedics Surgery and Orthopedic Research Institute, Chengdu 610065, China
| | - Ganjun Feng
- Analytical & Testing Center, West China Hospital & Department of Orthopedics Surgery and Orthopedic Research Institute, Chengdu 610065, China.
| | - Li Zhang
- Analytical & Testing Center, West China Hospital & Department of Orthopedics Surgery and Orthopedic Research Institute, Chengdu 610065, China.
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Yu X, Wang Y, Zhang J, Liu J, Wang A, Ding L. Recent Development of Copper-Based Nanozymes for Biomedical Applications. Adv Healthc Mater 2024; 13:e2302023. [PMID: 37742127 DOI: 10.1002/adhm.202302023] [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: 06/27/2023] [Revised: 09/06/2023] [Indexed: 09/25/2023]
Abstract
Copper (Cu), an indispensable trace element within the human body, serving as an intrinsic constituent of numerous natural enzymes, carrying out vital biological functions. Furthermore, nanomaterials exhibiting enzyme-mimicking properties, commonly known as nanozymes, possess distinct advantages over their natural enzyme counterparts, including cost-effectiveness, enhanced stability, and adjustable performance. These advantageous attributes have captivated the attention of researchers, inspiring them to devise various Cu-based nanomaterials, such as copper oxide, Cu metal-organic framework, and CuS, and explore their potential in enzymatic catalysis. This comprehensive review encapsulates the most recent advancements in Cu-based nanozymes, illuminating their applications in the realm of biochemistry. Initially, it is delved into the emulation of typical enzyme types achieved by Cu-based nanomaterials. Subsequently, the latest breakthroughs concerning Cu-based nanozymes in biochemical sensing, bacterial inhibition, cancer therapy, and neurodegenerative diseases treatment is discussed. Within this segment, it is also explored the modulation of Cu-based nanozyme activity. Finally, a visionary outlook for the future development of Cu-based nanozymes is presented.
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Affiliation(s)
- Xin Yu
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Yawen Wang
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Jian Zhang
- Division of Systems and Synthetic Biology, Department of Life Sciences, Chalmers University of Technology, Gothenburg, 412 96, Sweden
| | - Jing Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, University of Chinese Academy of Science, Beijing, 100190, P. R. China
| | - Aizhu Wang
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, P. R. China
| | - Longhua Ding
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, P. R. China
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Pan Y, Jiang J, Kan X. Diazo-reaction based dual-mode colorimetric-electrochemical sensing of nitrite in pickled food. Analyst 2023; 148:4869-4876. [PMID: 37642153 DOI: 10.1039/d3an01196h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Development of an effective and convenient sensor for sensitive detection of nitrites is of great concern since excessive amounts of nitrites can be harmful to both human health and the environment. In this work, Cu-MOF modified exfoliated graphite paper (EGP) was employed as a signal reporter to enable the visual and electrochemical dual-mode sensing of nitrites. Cu-MOFs were in situ synthesized on EGP, which exhibited an excellent oxidase enzyme-like activity to oxidize 3,3',5,5'-tetramethylbenzidine (TMB) into its oxidation product (oxTMB). The multi-layer structure and the superior electrical conductivity of EGP not only facilitated the loading of the Cu-MOF nanozyme for colorimetric sensing but also enabled its use as an underlying backbone to support electroanalysis. Based on the recognition of nitrite through a highly specific diazo reaction between nitrite and oxTMB, the addition of nitrite caused the colorimetric sensing solution to change color from blue to green, which allowed for the colorimetric sensing of nitrite with a limit of detection (LOD) of 8.5 × 10-6 mol L-1. Meanwhile, the Cu-MOF/EGP electrochemical platform was employed for ratiometric detection of nitrite based on the electrochemical oxidation of nitrite and TMB. Compared with the colorimetric mode, the electrochemical mode possessed higher sensitivity with a LOD of 5.4 × 10-7 mol L-1, indicating the high sensitivity and accuracy of the proposed dual-mode sensing strategy. Furthermore, the determination of nitrite in different pickled food samples is demonstrated.
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Affiliation(s)
- Yixin Pan
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Chemo-Biosensing, China.
| | - Jing Jiang
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Chemo-Biosensing, China.
| | - Xianwen Kan
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
- The Key Laboratory of Functional Molecular Solids, Ministry of Education; Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Chemo-Biosensing, China.
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Different Dimensional Copper-Based Metal-Organic Frameworks with Enzyme-Mimetic Activity for Antibacterial Therapy. Int J Mol Sci 2023; 24:ijms24043173. [PMID: 36834604 PMCID: PMC9967080 DOI: 10.3390/ijms24043173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 02/08/2023] Open
Abstract
Fighting against bacterial infection and accelerating wound healing remain important and challenging in infected wound care. Metal-organic frameworks (MOFs) have received much attention for their optimized and enhanced catalytic performance in different dimensions of these challenges. The size and morphology of nanomaterials are important in their physiochemical properties and thereby their biological functions. Enzyme-mimicking catalysts, based on MOFs of different dimensions, display varying degrees of peroxidase (POD)-like activity toward hydrogen peroxide (H2O2) decomposition into toxic hydroxyl radicals (•OH) for bacterial inhibition and accelerating wound healing. In this study, we investigated the two most studied representatives of copper-based MOFs (Cu-MOFs), three-dimensional (3D) HKUST-1 and two-dimensional (2D) Cu-TCPP, for antibacterial therapy. HKUST-1, with a uniform and octahedral 3D structure, showed higher POD-like activity, resulting in H2O2 decomposition for •OH generation rather than Cu-TCPP. Because of the efficient generation of toxic •OH, both Gram-negative Escherichia coli and Gram-positive methicillin-resistant Staphylococcus aureus could be eliminated under a lower concentration of H2O2. Animal experiments indicated that the as-prepared HKUST-1 effectively accelerated wound healing with good biocompatibility. These results reveal the multivariate dimensions of Cu-MOFs with high POD-like activity, providing good potential for further stimulation of specific bacterial binding therapies in the future.
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Chen J, Wang X, Wang Y, Zhang Y, Peng Z, Tang X, Hu Y, Qiu P. Colorimetric detection of uric acid based on enhanced catalytic activity of cobalt-copper bimetallic-modified molybdenum disulfide. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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