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Matsui K, Katsumata H, Furukawa M, Tateishi I, Kaneco S. Determination of low concentrations of glucose through colorimetric analysis using CoFe 2O 4 magnetic catalyst and SAT-3. ANAL SCI 2024; 40:1249-1260. [PMID: 38602663 DOI: 10.1007/s44211-024-00554-2] [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: 01/19/2024] [Accepted: 03/04/2024] [Indexed: 04/12/2024]
Abstract
Natural enzyme mimics have attracted attention as alternatives to natural peroxidases. Among these, magnetic nanoparticles, especially ferrites, have attracted attention because of their unique electronic and physical structures, which are expected to be applied in various fields, including high-frequency magnetic materials, biomaterials, gas sensors, and semiconductor photocatalysts. The structural properties of the synthesized catalysts were investigated using X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. The prepared CoFe2O4 exhibited a spinel ferrite structure and formed a wood-flake-like bulk structure. In this study, magnetic CoFe2O4 was prepared using a precipitation method as a natural enzyme mimetic. CoFe2O4 showed excellent peroxidase-like activity, as demonstrated by the Michaelis-Menten constant (Km) and the maximum velocity (Vmax). The linear ranges of the calibration curves for H2O2 and glucose were in the range of 0-500 µM, and the detection limits were 1.83 and 5.91 µM, respectively. This analytical method was applied for the determination of glucose in human serum, and the results were satisfactory and consistent with certified values. The performance of this sensor was comparable to or superior to those of several other sensors commonly used for glucose analysis, indicating that its practical application is feasible.
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Affiliation(s)
- Kurumi Matsui
- Department of Applied Chemistry, Graduate School of Engineering, Mie University, Tsu, Mie, 514-8507, Japan.
| | - Hideyuki Katsumata
- Department of Applied Chemistry, Graduate School of Engineering, Mie University, Tsu, Mie, 514-8507, Japan.
| | - Mai Furukawa
- Department of Applied Chemistry, Graduate School of Engineering, Mie University, Tsu, Mie, 514-8507, Japan
| | - Ikki Tateishi
- Global Environmental Center for Education & Research, Mie University, Tsu, Mie, 514-8507, Japan
| | - Satoshi Kaneco
- Department of Applied Chemistry, Graduate School of Engineering, Mie University, Tsu, Mie, 514-8507, Japan
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2
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Zhai R, Bi J, Zheng S, Chen W, Lin Y, Xiao S, Cao Y. Electronic structure of superconducting VN(111) films. DISCOVER NANO 2024; 19:42. [PMID: 38467967 PMCID: PMC10928062 DOI: 10.1186/s11671-024-03978-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 02/13/2024] [Indexed: 03/13/2024]
Abstract
Vanadium nitride (VN) is a transition-metal nitride with remarkable properties that have prompted extensive experimental and theoretical investigations in recent years. However, there is a current paucity of experimental research investigating the temperature-dependent electronic structure of single-crystalline VN. In this study, high-quality VN(111) films were successfully synthesized on α -Al2 O3 (0001) substrates using magnetron sputtering. The crystal and electronic structures of the VN films were characterized by a combination of high-resolution X-ray diffraction, low-energy electron diffraction, resonant soft X-ray absorption spectroscopy, and ultraviolet photoelectron spectroscopy. The electrical transport measurements indicate that the superconducting critical temperature of the VN films is around 8.1 K. Intriguingly, the temperature-dependent photoelectron spectroscopy measurements demonstrate a weak temperature dependence in the electronic structure of the VN films, which is significant for understanding the ground state of VN compounds.
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Affiliation(s)
- Rongjing Zhai
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Jiachang Bi
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.
| | - Shun Zheng
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Wei Chen
- Hefei Innovation Research Institute, Beihang University, Hefei, 230013, China
| | - Yu Lin
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- Yongjiang Laboratory, Ningbo, 315202, Zhejiang, China
| | - Shaozhu Xiao
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- Yongjiang Laboratory, Ningbo, 315202, Zhejiang, China
| | - Yanwei Cao
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
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3
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Sheng J, Wu Y, Ding H, Feng K, Shen Y, Zhang Y, Gu N. Multienzyme-Like Nanozymes: Regulation, Rational Design, and Application. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2211210. [PMID: 36840985 DOI: 10.1002/adma.202211210] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Nanomaterials with more than one enzyme-like activity are termed multienzymic nanozymes, and they have received increasing attention in recent years and hold huge potential to be applied in diverse fields, especially for biosensing and therapeutics. Compared to single enzyme-like nanozymes, multienzymic nanozymes offer various unique advantages, including synergistic effects, cascaded reactions, and environmentally responsive selectivity. Nevertheless, along with these merits, the catalytic mechanism and rational design of multienzymic nanozymes are more complicated and elusive as compared to single-enzymic nanozymes. In this review, the multienzymic nanozymes classification scheme based on the numbers/types of activities, the internal and external factors regulating the multienzymatic activities, the rational design based on chemical, biomimetic, and computer-aided strategies, and recent progress in applications attributed to the advantages of multicatalytic activities are systematically discussed. Finally, current challenges and future perspectives regarding the development and application of multienzymatic nanozymes are suggested. This review aims to deepen the understanding and inspire the research in multienzymic nanozymes to a greater extent.
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Affiliation(s)
- Jingyi Sheng
- Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210009, P. R. China
| | - Yuehuang Wu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu, 210009, P. R. China
| | - He Ding
- Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210009, P. R. China
| | - Kaizheng Feng
- Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210009, P. R. China
| | - Yan Shen
- School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, 211166, P. R. China
| | - Yu Zhang
- Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210009, P. R. China
| | - Ning Gu
- Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210009, P. R. China
- School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, 211166, P. R. China
- Medical School, Nanjing University, Nanjing, 210093, P. R. China
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4
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Xia Y, Shi F, Liu R, Zhu H, Liu K, Ren C, Li J, Yang Z. In Situ Electrospinning MOF-Derived Highly Dispersed α-Cobalt Confined in Nitrogen-Doped Carbon Nanofibers Nanozyme for Biomolecule Monitoring. Anal Chem 2024; 96:1345-1353. [PMID: 38190289 DOI: 10.1021/acs.analchem.3c05053] [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: 01/10/2024]
Abstract
Designing a metal-organic framework (MOF)-derived nanozyme with highly dispersed active sites and high catalytic activity as well as robust structure for colorimetric biosensing of diverse biomolecules remains a substantial challenge. Here, an MOF-derived highly dispersed and pure α-cobalt confined in a nitrogen-doped carbon nanofiber (α-Co@NCNF) nanozyme with superior glucose oxidase (GOD)- and peroxidase (POD)-like activities was constructed for colorimetric assay of multiple biomolecules. Specifically, the α-Co@NCNF nanozyme was synthesized, utilizing in situ electrospinning Co-MOFs into polyacrylonitrile nanofiber (PAN) followed by a pyrolysis process. Taking advantage of the in situ electrospinning strategy, the α-Co nanoparticles were confined in continuous porous NCNF to restrict the growth and prevent the aggregation and oxidation during the pyrolysis process. The resulting special structure considerably improved the enzyme-like performance. A series of experiments validate that the enzyme-like activity of the α-Co@NCNF nanozyme was superior to that of Co@CoO@NCNF (derivatives from Co-MOFs grown on the surface of PAN nanofiber) and nature enzymes. Furthermore, α-Co@NCNF nanozyme-based colorimetric biosensing was developed for monitoring glucose, hydrogen peroxide (H2O2), and glutathione (GSH) and the corresponding linear ranges are 0.1-50 and 50-900 μM and 5-55 and 0.1-20 μM accompanied by the corresponding low detection of 0.03, 1.66, and 0.03 μM. The proposed method for the construction of α-Co@NCNF nanozyme with dual enzyme-like properties provides a new insight for designing novel nanozymes and has prospects for application in colorimetric biosensing.
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Affiliation(s)
- Yanping Xia
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Feng Shi
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Ruixin Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Haibing Zhu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Kai Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Chuanli Ren
- Clinical Medical College of Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou 225001, P. R. China
| | - Juan Li
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Zhanjun Yang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
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Wang Y, Zhuang Y, Hu Y, Kong F, Yang G, Rojas OJ, He M. Hollow N-doped carbon nano-mushroom encapsulated hybrid Ni 3S 2/Fe 5Ni 4S 8 particle anchored to the inner wall of porous wood carbon for efficient oxygen evolution electrocatalysis. NANOSCALE 2023; 15:18033-18043. [PMID: 37916424 DOI: 10.1039/d3nr03676f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Structural design and morphology engineering are considered significant strategies to boost the catalytic performance of electrocatalysts toward the oxygen evolution reaction. Inspired by the natural porosity and abundant functional groups, herein, hollow N-doped carbon nano-mushroom (NCNM) encapsulated hybrid sulfide particles rooted into a carbonized wood (CW) framework were prepared through simple impregnation followed by calcination. The as-prepared self-supporting electrodes present ultrahigh activity and robust stability. Among them, the NiFeS14@NCNM/CW catalyst yields incredible OER activity with an extraordinarily low overpotential of 147 and 250 mV to reach 10 and 50 mA cm-2, respectively, superior to most of the state-of-the-art wood-derived electrocatalysts. Additionally, a steady OER current density is maintained without obvious attenuation after continuous operation for 24 h. The superior electrocatalytic performance of NiFeS14@NCNM/CW is attributed to the synergistic effect of hybridization between Ni3S2 and Fe5Ni4S8, the coordination of one-dimensional (1D) NCNMs and hierarchical three-dimensional (3D) porous CW, modified electronic states by N and S doping, a large electrochemical surface area, and low activation energy. This research provides a novel approach to industrial-scale conversion of abundant biomass into efficient binder-free electrocatalysts for energy-related applications.
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Affiliation(s)
- Ying Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, 250353, P. R. China.
| | - Yuntang Zhuang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, 250353, P. R. China.
| | - Yaru Hu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, 250353, P. R. China.
| | - Fangong Kong
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, 250353, P. R. China.
| | - Guihua Yang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, 250353, P. R. China.
| | - Orlando J Rojas
- Bioproducts Institute, Department of Chemical & Biological Engineering, Department of Chemistry and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Ming He
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province, 250353, P. R. China.
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6
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Dong T, Zhang X, Yuan J, Lin Z, Yin P, Yu H, Wang M, Liu A. Sensitive Lateral Flow Immunoassay Based on Specific Peptide and Superior Oxidase Mimics with a Universal Dual-Mode Significant Signal Amplification. Anal Chem 2023; 95:12532-12540. [PMID: 37553756 DOI: 10.1021/acs.analchem.3c02821] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2023]
Abstract
Rapid and sensitive antigen detection using a lateral flow immunoassay (LFIA) is crucial for diagnosing infectious diseases due to its simplicity, speed, and user-friendly features. However, it remains a critical issue to explore specific biorecognition elements and powerful signal amplification. In this study, taking SARS-CoV-2 as a proof of concept, a specific peptide, WFLNDSELIML, binding to the SARS-CoV-2 spike (S) antigen was identified by a nonamplified biopanning method, which exhibited high affinity to the target, with a dissociation constant of 9.29 ± 1.55 nM. Molecular docking analysis reveals that this peptide binds to the N-terminal domain of the SARS-CoV-2 S antigen. Then, using this peptide as a capture probe and angiotensin-converting enzyme 2 as a detection probe, a peptide-based lateral flow immunoassay (pLFIA) for the sensitive detection of the SARS-CoV-2 S antigen without any antibody was developed, for which a polydopamine nanosphere (PDA)@MnO2 nanocomposite with excellent oxidase-like activity was used as a colorimetric label, exhibiting dual-mode remarkable signal amplification of natural melanin and on-demand nanozyme catalytic enhancement. The PDA@MnO2-based pLFIA is capable of detecting the SARS-CoV-2 S antigen with a limit of detection of 8.01 pg/mL, which is 18.7 times lower than that of a conventional pLFIA tagged with gold nanoparticles. Additionally, the as-proposed PDA@MnO2-based pLFIA can detect up to 150 transduction units/mL SARS-CoV-2 pseudoviruses spiked in saliva samples. Given the outstanding analytical performance, the proposed PDA@MnO2-based pLFIA may offer a reliable option for the rapid diagnosis of SARS-CoV-2.
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Affiliation(s)
- Tao Dong
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
- School of Pharmacy, Medical College, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Xin Zhang
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Jinlong Yuan
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Ziting Lin
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
- Qingdao Hightop Biotech Co., Ltd., 369 Hedong Road, Hi-tech Industrial Development Zone, Qingdao 266112, China
| | - Pengxue Yin
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Haipeng Yu
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Mingyang Wang
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
| | - Aihua Liu
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao 266071, China
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7
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Thao NTM, Do HDK, Nam NN, Tran NKS, Dan TT, Trinh KTL. Antioxidant Nanozymes: Mechanisms, Activity Manipulation, and Applications. MICROMACHINES 2023; 14:1017. [PMID: 37241640 PMCID: PMC10220853 DOI: 10.3390/mi14051017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/06/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023]
Abstract
Antioxidant enzymes such as catalase, superoxide dismutase, and glutathione peroxidase play important roles in the inhibition of oxidative-damage-related pathological diseases. However, natural antioxidant enzymes face some limitations, including low stability, high cost, and less flexibility. Recently, antioxidant nanozymes have emerged as promising materials to replace natural antioxidant enzymes for their stability, cost savings, and flexible design. The present review firstly discusses the mechanisms of antioxidant nanozymes, focusing on catalase-, superoxide dismutase-, and glutathione peroxidase-like activities. Then, we summarize the main strategies for the manipulation of antioxidant nanozymes based on their size, morphology, composition, surface modification, and modification with a metal-organic framework. Furthermore, the applications of antioxidant nanozymes in medicine and healthcare are also discussed as potential biological applications. In brief, this review provides useful information for the further development of antioxidant nanozymes, offering opportunities to improve current limitations and expand the application of antioxidant nanozymes.
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Affiliation(s)
- Nguyen Thi My Thao
- School of Medicine and Pharmacy, Tra Vinh University, Tra Vinh City 87000, Vietnam
| | - Hoang Dang Khoa Do
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ward 13, District 04, Ho Chi Minh City 70000, Vietnam
| | - Nguyen Nhat Nam
- Biotechnology Center, School of Agriculture and Aquaculture, Tra Vinh University, Tra Vinh City 87000, Vietnam
| | - Nguyen Khoi Song Tran
- College of Korean Medicine, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Republic of Korea;
| | | | - Kieu The Loan Trinh
- Department of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Republic of Korea
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8
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Xie P, Wang D, Zhao H, Yin N, Hu S, Qin W, Meng L, Pan X, Yuan Y, Yuan R, Peng K. Electrochemical biomimetic enzyme cascade amplification combined with target-induced DNA walker for detection of thrombin. Mikrochim Acta 2023; 190:188. [PMID: 37079080 DOI: 10.1007/s00604-023-05769-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 03/29/2023] [Indexed: 04/21/2023]
Abstract
Fe-N-doped carbon nanomaterials (Fe-N/CMs) were designed as a novel biomimetic enzyme with excellent peroxidase-like activity to achieve high-efficient enzyme cascade catalytic amplification with the aid of glucose oxidase (GOx), which was further combined with target-induced DNA walker amplification to develop a sensitive electrochemical biosensor for thrombin detection. Impressively, massive output DNA was transformed from small amounts of target thrombin by highly effective DNA walker amplification as protein-converting strategy, which could then induce the immobilization of functionalized nanozyme on the electrode surface to achieve the high-efficient electrochemical biomimetic enzyme cascade amplification. As a result, an amplified enzyme cascade catalytic signal was measured for thrombin detection ranging from 0.01 pM to 1 nM with a low detection limit of 3 fM. Importantly, the new biomimetic enzyme cascade reaction coupled the advantages of natural enzyme and nanozyme, which paved an avenue to construct varied artificial multienzymes amplification systems for biosensing, bioanalysis, and disease diagnosis applications.
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Affiliation(s)
- Pan Xie
- Department of Nephrology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People's Republic of China
| | - Ding Wang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, People's Republic of China
| | - Hongwen Zhao
- Department of Nephrology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People's Republic of China
| | - Na Yin
- Department of Nephrology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People's Republic of China
| | - Shuang Hu
- Department of Nephrology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People's Republic of China
| | - Wenhan Qin
- Department of Nephrology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People's Republic of China
| | - Li Meng
- Department of Nephrology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People's Republic of China
| | - Xin Pan
- Department of Nephrology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People's Republic of China
| | - Yali Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, People's Republic of China
| | - Ruo Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, People's Republic of China.
| | - Kanfu Peng
- Department of Nephrology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing, People's Republic of China.
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9
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Cai Y, Dong T, Zhang X, Liu A. Morphology and Enzyme-Mimicking Activity of Copper Nanoassemblies Regulated by Peptide: Mechanism, Ultrasensitive Assaying of Trypsin, and Screening of Trypsin Inhibitors. Anal Chem 2022; 94:18099-18106. [PMID: 36515251 DOI: 10.1021/acs.analchem.2c04767] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
To regulate nanostructure synthesis is of crucial importance for developing various applications, including catalysis, bioanalysis, and optical devices. Herein, the morphology and peroxidase (POD)-mimicking activity of peptide-templated copper nanoassemblies (Cu NAs) are regulable with peptide types. The Cu NAs templated with peptide containing single cysteine are uniform nanoclusters with strong POD-like activity. However, the Cu NAs templated with peptide containing two cysteines are fusiform-like with very weak POD-like activity. Unexpectedly, the POD-like activity of Cu NAs templated with peptide containing two cysteines with lysine between the cysteines is significantly enhanced when trypsin is incubated, which is unchanged for the Cu NAs templated with peptide containing two cysteines without lysine between the cysteines. The remarkably enhanced POD-mimicking activity originates from trypsin specifically shearing the peptide bond on the lysine, thereby allowing the aggregated Cu NAs to unravel into individual nanoclusters. Therefore, a robust colorimetric sensing platform was constructed for sensitive and selective detection of trypsin, which showed a linear concentration range of 3-1000 nM and a detection limit of 0.82 nM (S/N = 3). More interestingly, featured by trypsin inhibitor restraining trypsin activity, it enabled us to screen trypsin inhibitors as well. Subsequently, the developed assay was applied to detect trypsin in serum samples with good accuracy and reproducibility. Thus, this strategy shows great potential application in the clinic for diagnosis of trypsin-indicating diseases as well as the screening of trypsin inhibitor-based anti-cancer drugs.
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Affiliation(s)
- Yuanyuan Cai
- Institute for Chemical Biology and Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Rd, Qingdao 266071, China.,School of Pharmacy, Medical College, Qingdao University, 308 Ningxia Rd, Qingdao 266071, China
| | - Tao Dong
- School of Pharmacy, Medical College, Qingdao University, 308 Ningxia Rd, Qingdao 266071, China
| | - Xin Zhang
- Institute for Chemical Biology and Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Rd, Qingdao 266071, China
| | - Aihua Liu
- Institute for Chemical Biology and Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Rd, Qingdao 266071, China
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10
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Wang L, Sun C, Ji S, Linkov V, Wang H. Highly‐Dispersed Vanadium Nitride Supported on Porous Nitrogen‐Doped Carbon Material as a High‐Performance Cathode for Lithium‐Sulfur Batteries. ChemistrySelect 2022. [DOI: 10.1002/slct.202202879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Li Wang
- School of Chemistry & Environmental Engineering Pingdingshan University Pingdingshan 467000 China
| | - Chaoyang Sun
- State Key Laboratory Base for Eco-Chemical Engineering College of Chemical Engineering Qingdao University of Science and Technology Qingdao 266042 China
| | - Shan Ji
- College of Biological Chemical Science and Engineering Jiaxing University Jiaxing 314001 China
| | - Vladimir Linkov
- South African Institute for Advanced Materials Chemistry University of the Western Cape Cape Town 7535 South Africa
| | - Hui Wang
- State Key Laboratory Base for Eco-Chemical Engineering College of Chemical Engineering Qingdao University of Science and Technology Qingdao 266042 China
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