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Zhao J, Lv J, Ling G, Zhang P. A swellable hydrogel microneedle based on cerium-metal organic frame composite nanozyme for detection of biomarkers. Int J Biol Macromol 2024; 254:127745. [PMID: 38287590 DOI: 10.1016/j.ijbiomac.2023.127745] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/26/2023] [Accepted: 10/26/2023] [Indexed: 01/31/2024]
Abstract
Skin interstitial fluid (ISF) has been an alternative source in the field of biomarkers analysis. This work developed swellable hydrogel microneedles (MNs) composed of polyvinyl alcohol and sodium alginate by chemical crosslinking (PVA/SA). Here, PVA/SA was firstly used to fabricate hydrogel MNs, achieving a swellable ratio of 150 % and a rapid extraction of 6.4 mg ISF in 15 min. To replace expensive and non-reusable test kits, hydrogel MNs based on composite nanozyme with high oxidase-like activity were successfully developed to recover and detect biomarkers. The nanozyme was composed of MnO2-modified mixed valence cerium-metal organic frame (MCM). MCM was characterized by multiple techniques to further confirm its composition and structure. MCM combined with the reduction reaction of glutathione (GSH) with oxidized substrate to achieve a colorimetric GSH detection, which had a detection limit (LOD, 0.36 μM) of GSH. The hydrogel MNs based on MCM (MCM-MNs) were firstly applied to the rapid detection of GSH in ISF. All in all, this method combines the advantages of nanozyme and hydrogel MNs to achieve a timely and minimally invasive analysis, which provides a new dimension for the in vivo detection of GSH by skin ISF and holds great implications in biomedical and bioanalysis fields.
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Affiliation(s)
- Jiuhong Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Jiatong Lv
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Guixia Ling
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China.
| | - Peng Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China.
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Liu Y, Zhao W, Gao Y, Zhuo Q, Chu T, Huang W, Zheng Y, Li Y. In situ green synthesis of the nanocomposites of MnO 2/graphene as an oxidase mimic for sensitive colorimetric and electrochemical dual-mode biosensing. RSC Adv 2023; 13:31067-31076. [PMID: 37881765 PMCID: PMC10594154 DOI: 10.1039/d3ra05879d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 10/19/2023] [Indexed: 10/27/2023] Open
Abstract
Herein we report the colorimetry and an electrochemical for the determination of dopamine (DA) by using MnO2 nanoparticles and graphene nanosheets composite (MnO2@G) that display oxidase mimicking property. MnO2@G could directly oxidize colorless 3,3',5,5'-tetramethylbenzidine (TMB) into a blue product (oxTMB) without extra oxidants such as H2O2. Nevertheless, the presence of DA will inhibit the TMB oxidation due to the presence of the competitive reaction of MnO2@G and DA, giving a product color change from blue to colorless. A colorimetric assay for detect the concentration of DA was worked out according to this finding. Response is linear in the 0.1 to 15 μM DA concentration range, and the detection limit is 0.14 μM. Wider detection range is achieved in an electrochemical method which is due to the pronounced electrocatalytic activity of MnO2@G. The MnO2@G was modified on the surface of the glassy carbon electrode in order to fabricate one type electrochemical sensor. The sensor achieves a wide detection two linear ranges from 0.4 to 70 μM, with the detection limit of 1.16 μM. The detection of DA in real serum sample proved that the nanozyme based on MnO2@G could be developed into a colorimetry and electrochemical dual-readout sensing platform.
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Affiliation(s)
- Yaopeng Liu
- College of Chemical and Environmental Engineering, Hubei Minzu University Enshi 445000 Hubei China
| | - Wei Zhao
- College of Intelligent Systems Science and Engineering, Hubei Minzu University Enshi 445000 China
- Key Laboratory of Green Manufacturing of Super-light Elastomer Materials of State Ethnic Affairs Commission, Hubei Minzu University Enshi 445000 China
| | - Yi Gao
- College of Chemical and Environmental Engineering, Hubei Minzu University Enshi 445000 Hubei China
| | - Qing Zhuo
- College of Intelligent Systems Science and Engineering, Hubei Minzu University Enshi 445000 China
- Key Laboratory of Green Manufacturing of Super-light Elastomer Materials of State Ethnic Affairs Commission, Hubei Minzu University Enshi 445000 China
| | - Tingting Chu
- College of Chemical and Environmental Engineering, Hubei Minzu University Enshi 445000 Hubei China
| | - Wensheng Huang
- College of Chemical and Environmental Engineering, Hubei Minzu University Enshi 445000 Hubei China
| | - Yin Zheng
- College of Chemical and Environmental Engineering, Hubei Minzu University Enshi 445000 Hubei China
| | - Yingru Li
- College of Intelligent Systems Science and Engineering, Hubei Minzu University Enshi 445000 China
- Key Laboratory of Green Manufacturing of Super-light Elastomer Materials of State Ethnic Affairs Commission, Hubei Minzu University Enshi 445000 China
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Chen X, Liao J, Lin Y, Zhang J, Zheng C. Nanozyme's catalytic activity at neutral pH: reaction substrates and application in sensing. Anal Bioanal Chem 2023:10.1007/s00216-023-04525-w. [PMID: 36633622 DOI: 10.1007/s00216-023-04525-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 01/01/2023] [Accepted: 01/04/2023] [Indexed: 01/13/2023]
Abstract
Nanozymes exhibit their great potential as alternatives to natural enzymes. In addition to catalytic activity, nanozymes also need to have biologically relevant catalytic reactions at physiological pH to fit in the definition of an enzyme and to achieve efficient analytical applications. Previous reviews in the nanozyme field mainly focused on the catalytic mechanisms, activity regulation, and types of catalytic reactions. In this paper, we discuss efforts made on the substrate-dependent catalytic activity of nanozymes at neutral pH. First, the discrepant catalytic activities for different substrates are compared, where the key differences are the characteristics of substrates and the adsorption of substrates by nanozymes at different pH. We then reviewed efforts to enhance reaction activity for model chromogenic substrates and strategies to engineer nanomaterials to accelerate reaction rates for other substrates at physiological pH. Finally, we also discussed methods to achieve efficient sensing applications at neutral pH using nanozymes. We believe that the nanozyme is catching up with enzymes rapidly in terms of reaction rates and reaction conditions. Designing nanozymes with specific catalysis for efficient sensing remains a challenge.
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Affiliation(s)
- Xueshan Chen
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Jing Liao
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, 610065, Sichuan, China.,College of Chemistry and Material Science, Sichuan Normal University, Chengdu, 610068, Sichuan, China
| | - Yao Lin
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Jinyi Zhang
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, 610065, Sichuan, China.
| | - Chengbin Zheng
- Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, 610065, Sichuan, China
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Tang M, Zhang Z, Sun T, Li B, Wu Z. Manganese-Based Nanozymes: Preparation, Catalytic Mechanisms, and Biomedical Applications. Adv Healthc Mater 2022; 11:e2201733. [PMID: 36050895 DOI: 10.1002/adhm.202201733] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/09/2022] [Indexed: 01/28/2023]
Abstract
Manganese (Mn) has attracted widespread attention due to its low-cost, nontoxicity, and valence-rich transition. Various Mn-based nanomaterials have sprung up and are employed in diverse fields, particularly Mn-based nanozymes, which combine the physicochemical properties of Mn-based nanomaterials with the catalytic activity of natural enzymes, and are attracting a surge of research, especially in the field of biomedical research. In this review, the typical preparation strategies, catalytic mechanisms, advances and perspectives of Mn-based nanozymes for biomedical applications are systematically summarized. The application of Mn-based nanozymes in tumor therapy and sensing detection, together with an overview of their mechanism of action is highlighted. Finally, the prospective directions of Mn-based nanozymes from five perspectives: innovation, activity enhancement, selectivity, biocompatibility, and application broadening are discussed.
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Affiliation(s)
- Minglu Tang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Engineering Research Center of Forest Bio-Preparation, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, P. R. China
| | - Zhaocong Zhang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Engineering Research Center of Forest Bio-Preparation, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, P. R. China
| | - Tiedong Sun
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Engineering Research Center of Forest Bio-Preparation, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, P. R. China
| | - Bin Li
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Engineering Research Center of Forest Bio-Preparation, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, P. R. China
| | - Zhiguang Wu
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, P. R. China
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