51
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Zeng D, San L, Qian F, Ge Z, Xu X, Wang B, Li Q, He G, Mi X. Framework Nucleic Acid-Enabled Programming of Electrochemical Catalytic Properties of Artificial Enzymes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:21859-21864. [PMID: 31117473 DOI: 10.1021/acsami.9b06480] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The creation and engineering of artificial enzymes remain a challenge, especially the arrangement of enzymes into geometric patterns with nanometer precision. In this work, we fabricated a series of novel DNA-tetrahedron-scaffolded-DNAzymes (Tetrazymes) and evaluated the catalytic activity of these Tetrazymes by electrochemistry. Tetrazymes were constructed by precisely positioning G-quadruplex on different sites of a DNA tetrahedral framework, with hemin employed as the co-catalyst. Immobilization of Tetrazymes on a gold electrode surface revealed horseradish peroxidase (HPR)-mimicking bioelectrocatalytic property. Cyclic voltammogram and amperometry were employed to evaluate the capability of Tetrazymes of different configurations to electrocatalyze the reduction of hydrogen peroxide (H2O2). These artificial Tetrazymes displayed 6- to 14-fold higher enzymatic activity than G-quadruplex/hemin (G4-hemin) without the DNA tetrahedron scaffold, demonstrating application potential in developing novel G-quadruplex-based electrochemical sensors.
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Affiliation(s)
- Dongdong Zeng
- Shanghai Key Laboratory of Molecular Imaging , Shanghai University of Medicine & Health Sciences , Shanghai 201318 , China
| | - Lili San
- Shanghai Advanced Research Institute , Chinese Academy of Sciences , Shanghai 201210 , China
| | - Fengyu Qian
- Shanghai Key Laboratory of Molecular Imaging , Shanghai University of Medicine & Health Sciences , Shanghai 201318 , China
| | | | - Xiaohui Xu
- Shanghai Key Laboratory of Molecular Imaging , Shanghai University of Medicine & Health Sciences , Shanghai 201318 , China
| | - Bin Wang
- Shanghai Key Laboratory of Molecular Imaging , Shanghai University of Medicine & Health Sciences , Shanghai 201318 , China
| | | | - Guifang He
- Shanghai Advanced Research Institute , Chinese Academy of Sciences , Shanghai 201210 , China
| | - Xianqiang Mi
- Shanghai Advanced Research Institute , Chinese Academy of Sciences , Shanghai 201210 , China
- Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , China
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52
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Mohri N, Kerschbaumer H, Link T, Andre R, Panthöfer M, Ksenofontov V, Tremel W. Self-Organized Arrays of SnO2
Microplates with Photocatalytic and Antimicrobial Properties. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900348] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Nils Mohri
- Institut für Anorganische Chemie und Analytische Chemie; Johannes-Gutenberg-Universität; Duesbergweg 10-14 55128 Mainz Germany
| | - Hannes Kerschbaumer
- Institut für Anorganische Chemie und Analytische Chemie; Johannes-Gutenberg-Universität; Duesbergweg 10-14 55128 Mainz Germany
| | - Thorben Link
- Institut für Physiologische Chemie; Abteilung Angewandte Molekularbiologie; Johannes-Gutenberg-Universität; Duesbergweg 6 55099 Mainz Germany
| | - Rute Andre
- Institut für Anorganische Chemie und Analytische Chemie; Johannes-Gutenberg-Universität; Duesbergweg 10-14 55128 Mainz Germany
| | - Martin Panthöfer
- Institut für Anorganische Chemie und Analytische Chemie; Johannes-Gutenberg-Universität; Duesbergweg 10-14 55128 Mainz Germany
| | - Vadim Ksenofontov
- Institut für Anorganische Chemie und Analytische Chemie; Johannes-Gutenberg-Universität; Duesbergweg 10-14 55128 Mainz Germany
| | - Wolfgang Tremel
- Institut für Anorganische Chemie und Analytische Chemie; Johannes-Gutenberg-Universität; Duesbergweg 10-14 55128 Mainz Germany
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53
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Revealing the Active Site of Gold Nanoparticles for the Peroxidase-Like Activity: The Determination of Surface Accessibility. Catalysts 2019. [DOI: 10.3390/catal9060517] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Despite the fact that the enzyme-like activities of nanozymes (i.e., nanomaterial-based artificial enzymes) are highly associated with their surface properties, little is known about the catalytic active sites. Here, we used the sulfide ion (S2−)-induced inhibition of peroxidase-like activity to explore active sites of gold nanoparticles (AuNPs). The inhibition mechanism was based on the interaction with Au(I) to form Au2S, implying that the Au(I) might be the active site of AuNPs for the peroxidase-like activity. X-ray photoelectron spectroscopy (XPS) analysis showed that the content of Au(I) on the surface of AuNPs significantly decreased after the addition of S2−, which might be contributed to the more covalent Au–S bond in the formation of Au2S. Importantly, the variations of Au(I) with and without the addition of S2− for different surface-capped AuNPs were in good accordance with their corresponding peroxidase-like activities. These results confirmed that the accessible Au(I) on the surface was the main requisite for the peroxidase-like activity of AuNPs for the first time. In addition, the use of S2− could assist to determine available active sites for different surface modified AuNPs. This work not only provides a new method to evaluate the surface accessibility of colloidal AuNPs but also gains insight on the design of efficient AuNP-based peroxidase mimics.
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54
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Kim D, Kwon HJ, Hyeon T. Magnetite/Ceria Nanoparticle Assemblies for Extracorporeal Cleansing of Amyloid-β in Alzheimer's Disease. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1807965. [PMID: 30920695 DOI: 10.1002/adma.201807965] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/04/2019] [Indexed: 06/09/2023]
Abstract
Accumulation of amyloid-β (Aβ) peptides in the brain is regarded as a major contributor to the pathogenesis and progression of Alzheimer's disease (AD). However, development of clinically relevant techniques to reduce Aβ levels in AD patients is hindered by low efficiency and/or side effects. Here, an extracorporeal Aβ cleansing system, where multifunctional magnetite/ceria nanoparticle assemblies are used to remove Aβ peptides from flowing blood by specific capture and magnetic separation, is reported. The magnetite nanoparticles in the nanoassembly core enable the magnetic isolation of the captured Aβ peptides by generating a large attraction force under an external magnetic field. The ceria nanoparticles in the nanoassembly shell relieve oxidative stress by scavenging reactive oxygen species that are produced by immune response during the process. Blood Aβ cleansing treatment of 5XFAD transgenic mice not only demonstrates the decreased Aβ levels both in the blood and in the brain but also prevents the spatial working memory deficits, suggesting the potential of the method for AD prevention and therapy.
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Affiliation(s)
- Dokyoon Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- Department of Bionano Engineering and Bionanotechnology, Hanyang University, Ansan, 15588, Republic of Korea
| | - Hyek Jin Kwon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
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55
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Huang L, Niu Y, Li R, Liu H, Wang Y, Xu G, Li Y, Xu Y. VO x Quantum Dots with Multienzyme-Mimic Activities and the Application in Constructing a Three-Dimensional (3D) Coordinate System for Accurate Discrimination of the Hydrogen Peroxide over a Broad Concentration Range. Anal Chem 2019; 91:5753-5761. [PMID: 30968692 DOI: 10.1021/acs.analchem.8b05923] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The construction of efficient nanozyme with multienzyme activities in a simple way is vital for the wide biological and chemical applications. Generally, the mimic enzyme activities depend on their sizes, surface states, and materials types. Quantum dots (QDs), one type of zero-dimensional nanomaterials, are much appealing due to their abundant catalytically active surface deficiency. The vanadium oxide (VO x) is one special transition metal oxides possessing different valence states. Inspired by these views, we synthesized VO xQDs herein via a one-pot top-down ethanol-thermal method using bulk VO2 as the precursor. The VO xQDs showed not only oxidase- and peroxidase-like activities in ethanol as the main background solution (ethanol-BGS), but also exhibited additional superoxide dismutase mimetic activity in phosphate buffer solution. Furthermore, the TMB-VO xQDs system in the ethanol-BGS produced three distinct colors in the presence of hydrogen peroxide (H2O2) at three different concentration gradients (10-90 μM, 0.1-10 mM, and 20-100 mM). Accordingly, we constructed a three-dimensional (3D) coordinate system (3D-CS) by using the three variables: the initial velocities, the maximum absorption values and the visual colors of the enzymatic reaction system. As a result, the rapid detection of H2O2 can be achieved while effectively avoiding the faked appearance due to the inhibition effects to the enzymatic system at too high H2O2 concentration. The applicability of the VO xQDs based 3D-CS was further proved via the facile and accurate H2O2 assays in three different practical samples.
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Affiliation(s)
- Lei Huang
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China
| | - Yusheng Niu
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China.,School of Tourism and Geography Science , Qingdao University , Qingdao 266071 , China
| | - Ronggui Li
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China
| | - Haozhong Liu
- Department of Urology, Key Laboratory of Urinary System Diseases , the Affiliated Hospital of Qingdao University , Qingdao 266003 , P. R. China
| | - Yao Wang
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China
| | - Gengfang Xu
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China
| | - Yang Li
- College of Materials Science and Engineering , Qingdao University , Qingdao 266071 , P. R. China
| | - Yuanhong Xu
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China
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56
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Fang X, Zheng Y, Duan Y, Liu Y, Zhong W. Recent Advances in Design of Fluorescence-Based Assays for High-Throughput Screening. Anal Chem 2019; 91:482-504. [PMID: 30481456 PMCID: PMC7262998 DOI: 10.1021/acs.analchem.8b05303] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiaoni Fang
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Yongzan Zheng
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Yaokai Duan
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Yang Liu
- Environmental Toxicology Graduate Program, University of California, Riverside, California 92521, United States
| | - Wenwan Zhong
- Department of Chemistry, University of California, Riverside, California 92521, United States
- Environmental Toxicology Graduate Program, University of California, Riverside, California 92521, United States
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57
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Wu J, Wang X, Wang Q, Lou Z, Li S, Zhu Y, Qin L, Wei H. Nanomaterials with enzyme-like characteristics (nanozymes): next-generation artificial enzymes (II). Chem Soc Rev 2019; 48:1004-1076. [DOI: 10.1039/c8cs00457a] [Citation(s) in RCA: 1628] [Impact Index Per Article: 325.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An updated comprehensive review to help researchers understand nanozymes better and in turn to advance the field.
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Affiliation(s)
- Jiangjiexing Wu
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Xiaoyu Wang
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Quan Wang
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Zhangping Lou
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Sirong Li
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Yunyao Zhu
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Li Qin
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Hui Wei
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
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58
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Hu M, Korschelt K, Viel M, Wiesmann N, Kappl M, Brieger J, Landfester K, Thérien-Aubin H, Tremel W. Nanozymes in Nanofibrous Mats with Haloperoxidase-like Activity To Combat Biofouling. ACS APPLIED MATERIALS & INTERFACES 2018; 10:44722-44730. [PMID: 30499648 DOI: 10.1021/acsami.8b16307] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Electrospun polymer mats are widely used in tissue engineering, wearable electronics, and water purification. However, in many environments, the polymer nanofibers prepared by electrospinning suffer from biofouling during long-term usage, resulting in persistent infections and device damage. Herein, we describe the fabrication of polymer mats with CeO2- x nanorods that can prevent biofouling in an aqueous environment. The embedded CeO2- x nanorods are functional mimics of natural haloperoxidases that catalyze the oxidative bromination of Br- and H2O2 to HOBr. The generated HOBr, a natural signaling molecule, disrupted the bacterial quorum sensing, a critical step in biofilm formation. The polymer fibers provide porous structures with high water wettability, and the embedded cerium oxide nanozymes act as a catalyst that can efficiently trigger oxidative bromination, as shown by a haloperoxidase assay. Additionally, the embedded nanozymes enhance the mechanical property of polymer mats, as shown by a single-fiber bending test using atomic force microscopy. We envision that the fabricated polymer mats with CeO2- x nanorods may be used to provide mechanically robust coatings with antibiofouling properties.
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Affiliation(s)
- Minghan Hu
- Max Planck Institute for Polymer Research , 55128 Mainz , Germany
| | - Karsten Korschelt
- Institute of Inorganic Chemistry and Analytical Chemistry , Johannes Gutenberg University , 55128 Mainz , Germany
| | - Melanie Viel
- Institute of Inorganic Chemistry and Analytical Chemistry , Johannes Gutenberg University , 55128 Mainz , Germany
| | - Nadine Wiesmann
- Molecular Tumor Biology, Department of Otorhinolaryngology, Head and Neck Surgery , University Medical Center Mainz , 55131 Mainz , Germany
| | - Michael Kappl
- Max Planck Institute for Polymer Research , 55128 Mainz , Germany
| | - Jürgen Brieger
- Molecular Tumor Biology, Department of Otorhinolaryngology, Head and Neck Surgery , University Medical Center Mainz , 55131 Mainz , Germany
| | | | | | - Wolfgang Tremel
- Institute of Inorganic Chemistry and Analytical Chemistry , Johannes Gutenberg University , 55128 Mainz , Germany
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59
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Su L, Zhang Z, Xiong Y. Water dispersed two-dimensional ultrathin Fe(iii)-modified covalent triazine framework nanosheets: peroxidase like activity and colorimetric biosensing applications. NANOSCALE 2018; 10:20120-20125. [PMID: 30376033 DOI: 10.1039/c8nr06907g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Peroxidase mimics have attracted increasing attention as emerging artificial enzymes due to their promising applications in many fields, including bionanotechnology, sustainable chemistry, and environmental remediation. Although many types of peroxidase mimics have been successfully exploited in the past decade, the development of an innovative peroxidase mimic that does not contain noble metals, but exhibits remarkable peroxidase-like activity and low cytotoxicity still remains a major challenge in this field. Herein, we present a bulk covalent triazine framework cleavage and metal atom anchoring strategy for the synthesis of iron-modified two-dimensional covalent triazine frameworks (2D Fe-CTFs) that demonstrate excellent peroxidase-like activity. Furthermore, three kinds of colorimetric sensing platforms for sarcosine, ochratoxin A, and fluoride ions were constructed based on the intrinsic peroxidase-like activity, salt-induced coagulation, and coordination competition of the 2D Fe-CTF, respectively. This work may provide a new synthetic method for peroxidase mimics that can be used in various colorimetric sensors.
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Affiliation(s)
- Linjing Su
- College of Food and Bioengineering, Hezhou University, Hezhou 542899, P. R. China.
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60
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Nothling MD, Xiao Z, Bhaskaran A, Blyth MT, Bennett CW, Coote ML, Connal LA. Synthetic Catalysts Inspired by Hydrolytic Enzymes. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03326] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mitchell D. Nothling
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Zeyun Xiao
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, P. R. China
| | - Ayana Bhaskaran
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Mitchell T. Blyth
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Christopher W. Bennett
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Michelle L. Coote
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Luke A. Connal
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
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61
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Khulbe K, Roy P, Radhakrishnan A, Mugesh G. An Unusual Two‐Step Hydrolysis of Nerve Agents by a Nanozyme. ChemCatChem 2018. [DOI: 10.1002/cctc.201801220] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kritika Khulbe
- Department of Inorganic and Physical ChemistryIndian Institute of Science Bangalore 560012 India
| | - Punarbasu Roy
- Department of Inorganic and Physical ChemistryIndian Institute of Science Bangalore 560012 India
| | - Anusree Radhakrishnan
- Department of Inorganic and Physical ChemistryIndian Institute of Science Bangalore 560012 India
| | - Govindasamy Mugesh
- Department of Inorganic and Physical ChemistryIndian Institute of Science Bangalore 560012 India
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62
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Korschelt K, Schwidetzky R, Pfitzner F, Strugatchi J, Schilling C, von der Au M, Kirchhoff K, Panthöfer M, Lieberwirth I, Tahir MN, Hess C, Meermann B, Tremel W. CeO 2-x nanorods with intrinsic urease-like activity. NANOSCALE 2018; 10:13074-13082. [PMID: 29961799 DOI: 10.1039/c8nr03556c] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The large-scale production and ecotoxicity of urea make its removal from wastewater a health and environmental challenge. Whereas the industrial removal of urea relies on hydrolysis at elevated temperatures and high pressure, nature solves the urea disposal problem with the enzyme urease under ambient conditions. We show that CeO2-x nanorods (NRs) act as the first and efficient green urease mimic that catalyzes the hydrolysis of urea under ambient conditions with an activity (kcat = 9.58 × 101 s-1) about one order of magnitude lower than that of the native jack bean urease. The surface properties of CeO2-x NRs were probed by varying the Ce4+/Ce3+ ratio through La doping. Although La substitution increased the number of surface defects, the reduced number of Ce4+ sites with higher Lewis acidity led to a slight decrease of their catalytic activity. CeO2-x NRs are stable against pH changes and even to the presence of transition metal ions like Cu2+, one of the strongest urease inhibitors. The low costs and environmental compatibility make CeO2-x NRs a green urease substitute that may be applied in polymer membranes for water processing or filters for the waste water reclamation. The biomimicry approach allows the application of CeO2-x NRs as functional enzyme mimics where the use of native or recombinant enzyme is hampered because of its costs or operational stability.
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Affiliation(s)
- K Korschelt
- Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, D-55128 Mainz, Germany.
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