1
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Hao S, Fu C, Zhou L, Guo Z, Song Q. Tartaric acid stabilized iridium nanoparticles with excellent laccase-like activity. J Mater Chem B 2023; 11:2770-2777. [PMID: 36883554 DOI: 10.1039/d2tb02798d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Iridium nanoparticles with an average size of 1.7 nm (Tar-IrNPs) were synthesized by the reduction of IrCl3 with NaBH4 in the presence of tartaric acid. As prepared Tar-IrNPs showed not only oxidase, peroxidase and catalase activities but also exhibited unprecedented laccase-like activity, which can catalyze the oxidation of the substrates o-phenylenediamine (OPD) and p-phenylenediamine (PPD) accompanied by significant color changes. The superb catalytic performance is evidenced by the fact that Tar-IrNPs can achieve better laccase-like activity with only 2.5% of the dosage of natural laccase. Furthermore, they also exhibited superior thermal stability and broader pH adaptability (2.0-11) over that of natural laccase. Tar-IrNPs can retain more than 60% of their initial activity at 90 °C, while the natural laccase has totally lost its activity at 70 °C. At a prolonged reaction time, the oxidation products of OPD and PPD can form precipitates due to oxidation induced polymerization. Thus Tar-IrNPs have been successfully used for the determination and degradation of PPD and OPD.
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Affiliation(s)
- Shanhao Hao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu Province 214122, P. R. China.
| | - Cheng Fu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu Province 214122, P. R. China.
| | - Lin Zhou
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu Province 214122, P. R. China.
| | - Zhanghong Guo
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu Province 214122, P. R. China.
| | - Qijun Song
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu Province 214122, P. R. China.
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2
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Komkova MA, Karyakin AA. Prussian blue: from advanced electrocatalyst to nanozymes defeating natural enzyme. Mikrochim Acta 2022; 189:290. [PMID: 35879483 DOI: 10.1007/s00604-022-05363-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 05/28/2022] [Indexed: 01/08/2023]
Abstract
The pathway from the advanced electrocatalyst to nanozymes defeating natural enzyme is reviewed. Prussian blue, being the most advantageous electrocatalyst for hydrogen peroxide reduction, is obviously the best candidate for mimicking peroxidase activity. Indeed, catalytically synthesized Prussian blue nanoparticles are characterized by the catalytic rate constants, which are significantly (up to 4 orders of magnitude) higher than for enzyme peroxidase. Displaying in addition the enzymatic specificity in terms of an absence of oxidase-like activity, catalytically synthesized Prussian blue nanoparticles can be referred to as nanozymes. The latter provide the most versatile method for surface covering with the electrocatalyst, allowing to modify non-traditional materials like boron-doped diamond. For stabilization, Prussian blue core can be covered with nickel hexacyanoferrate shell; the resulting core-shell nanozymes still defeat natural enzyme in terms of activity. Discovering the catalytic pathway of nanozymes "artificial peroxidase" action, we have found the novel advantage of nanozymes over the corresponding biological catalysts: their dramatically (100 times) improved bimolecular rate constants.
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Affiliation(s)
- Maria A Komkova
- Chemistry Faculty of M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
| | - Arkady A Karyakin
- Chemistry Faculty of M.V. Lomonosov Moscow State University, 119991, Moscow, Russia.
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3
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Guari Y, Cahu M, Félix G, Sene S, Long J, Chopineau J, Devoisselle JM, Larionova J. Nanoheterostructures based on nanosized Prussian blue and its Analogues: Design, properties and applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214497] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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4
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Komkova MA, Zarochintsev AA, Karyakin AA. Nanozymes ‘artificial peroxidase’ in reduction and detection of organic peroxides. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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5
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Chen L, Li X, Li Z, Liu K, Xie J. Peroxidase catalytic activity of carbon nanoparticles for glutathione detection. RSC Adv 2021; 12:595-601. [PMID: 35424527 PMCID: PMC8978980 DOI: 10.1039/d1ra07601a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 11/26/2021] [Indexed: 11/21/2022] Open
Abstract
Peroxidases are present widely in microorganisms and plants, and catalyze many reactions. However, the activity of natural peroxidases is susceptible to external conditions. We prepared carbon nanoparticles (CNPs) using an environmentally friendly and simple method. These CNPs were demonstrated to possess intrinsic peroxidase-like activity. CNPs could catalyze the reaction of a peroxidase substrate, 3,3,5,5-tetramethylbenzidine (TMB), in the presence of H2O2 to produce a blue solution at 652 nm. CNPs exhibited higher peroxidase activity than that of other carbon-based nanomaterials. Moreover, CNPs retained their high peroxidase activity after being reused several times. Glutathione (GSH) can change the blue color of oxidized TMB into a colorless hue at 652 nm. Based on this fact, qualitative and quantitative approaches were employed to detect GSH using a colorimetric method. This method showed a broad detection range (2.5-50 μM) with a limit of detection of 0.26 μM. This method was shown to be accurate for GSH detection in a cell culture medium compared with that using a commercial assay kit. Our findings could facilitate application of CNPs in biomedical areas.
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Affiliation(s)
- Lijuan Chen
- College of Food and Bioengineering, Zhengzhou University of Light Industry Zhengzhou 450001 China
| | - Xiang Li
- Zhengzhou Tobacco Research Institute of CNTC Zhengzhou 450001 China +86371-67672113
| | - Zezhi Li
- Beijing Technology and Business University Beijing 100048 China
| | - Kejian Liu
- Zhengzhou Tobacco Research Institute of CNTC Zhengzhou 450001 China +86371-67672113
| | - Jianping Xie
- Zhengzhou Tobacco Research Institute of CNTC Zhengzhou 450001 China +86371-67672113
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6
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Karpova EV, Shcherbacheva EV, Komkova MA, Eliseev AA, Karyakin AA. Core-Shell Nanozymes "Artificial Peroxidase": Stability with Superior Catalytic Properties. J Phys Chem Lett 2021; 12:5547-5551. [PMID: 34101473 DOI: 10.1021/acs.jpclett.1c01200] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report on the nanoparticles composed of the catalytically synthesized Prussian Blue (PB) core stabilized with the nickel hexacyanoferrate (NiHCF) shell. Catalyzing hydrogen peroxide reduction, the resulting nanozymes (ø = 66 nm) display catalytic rate constants, which for pyrogallol or ferrocyanide are, respectively, 25 and 35 times higher than those for peroxidase enzyme. After more than half a year of storage at a room temperature, the core-shell PB-NiHCF nanozymes retain both their size and physicochemical properties; such stability is unreachable for the enzymes. Being immobilized, core-shell PB-NiHCF nanozymes (ø = 45 nm) result in a hydrogen peroxide sensor with a sensitivity similar to that of the sensor based on sole PB nanoparticles. However, whereas the latter response in hard inactivating conditions (25 min in 1 mM H2O2) drops down to 7.5%, the PB-NiHCF nanozymes-based sensor retains >75% of initial sensitivity. Application of the core-shell PB-NiHCF nanozymes "artificial peroxidase" would obviously open new horizons in elaboration of anti-inflammatory drugs and (bio)sensors.
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Affiliation(s)
- Elena V Karpova
- Chemistry Faculty of M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
| | | | - Maria A Komkova
- Chemistry Faculty of M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
| | - Andrei A Eliseev
- Chemistry Faculty of M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
| | - Arkady A Karyakin
- Chemistry Faculty of M.V. Lomonosov Moscow State University, 119991, Moscow, Russia
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7
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Estelrich J, Busquets MA. Prussian Blue: A Nanozyme with Versatile Catalytic Properties. Int J Mol Sci 2021; 22:ijms22115993. [PMID: 34206067 PMCID: PMC8198601 DOI: 10.3390/ijms22115993] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 12/17/2022] Open
Abstract
Nanozymes, nanomaterials with enzyme-like activities, are becoming powerful competitors and potential substitutes for natural enzymes because of their excellent performance. Nanozymes offer better structural stability over their respective natural enzymes. In consequence, nanozymes exhibit promising applications in different fields such as the biomedical sector (in vivo diagnostics/and therapeutics) and the environmental sector (detection and remediation of inorganic and organic pollutants). Prussian blue nanoparticles and their analogues are metal–organic frameworks (MOF) composed of alternating ferric and ferrous irons coordinated with cyanides. Such nanoparticles benefit from excellent biocompatibility and biosafety. Besides other important properties, such as a highly porous structure, Prussian blue nanoparticles show catalytic activities due to the iron atom that acts as metal sites for the catalysis. The different states of oxidation are responsible for the multicatalytic activities of such nanoparticles, namely peroxidase-like, catalase-like, and superoxide dismutase-like activities. Depending on the catalytic performance, these nanoparticles can generate or scavenge reactive oxygen species (ROS).
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Affiliation(s)
- Joan Estelrich
- Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Avda Joan XXIII, 27-31, 08028 Barcelona, Catalonia, Spain;
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, Avda. Diagonal 645, 08028 Barcelona, Catalonia, Spain
- Correspondence:
| | - M. Antònia Busquets
- Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Avda Joan XXIII, 27-31, 08028 Barcelona, Catalonia, Spain;
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, Avda. Diagonal 645, 08028 Barcelona, Catalonia, Spain
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8
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Komkova MA, Ibragimova OA, Karyakina EE, Karyakin AA. Catalytic Pathway of Nanozyme "Artificial Peroxidase" with 100-Fold Greater Bimolecular Rate Constants Compared to Those of the Enzyme. J Phys Chem Lett 2021; 12:171-176. [PMID: 33321035 DOI: 10.1021/acs.jpclett.0c03014] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report on the kinetic mechanism of the catalytically synthesized Prussian Blue nanoparticles denoted as "artificial peroxidase". In contrast to the enzyme, whose active site first interacts with hydrogen peroxide forming the so-called Compound I, in the case of the nanozymes, H2O2 oxidizes their complex with reducing substrate. Slow release of the product (oxidized form of the latter) from the nanozymes has been registered. The interaction of substrates with the nanozymes is 100 times faster than with enzyme peroxidases, and the rate-limiting constant for the nanozymes is also 2 orders of magnitude greater: for pyrogallol k2 = 1.3 ± 0.1 × 108 M-1 s-1 and for ferrocyanide k2 = 1.9 ± 0.1 × 108 M-1 s-1. Thus, the discovered novel advantage of nanozymes over the corresponding enzymes is the 100-fold greater bimolecular rate constants, resulting, most probably, from their uniformly accessible surface, avoiding the effect of rotation on the diffusion-controlled rate.
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Affiliation(s)
- Maria A Komkova
- Chemistry Faculty of M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Olga A Ibragimova
- Chemistry Faculty of M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Elena E Karyakina
- Chemistry Faculty of M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Arkady A Karyakin
- Chemistry Faculty of M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
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9
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Mamontova E, Rodríguez-Castillo M, Oliviero E, Guari Y, Larionova J, Monge M, Long J. Designing heterostructured core@satellite Prussian Blue Analogue@Au–Ag nanoparticles: Effect on the magnetic properties and catalytic activity. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00008j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Prussian Blue Analogue@Au–Ag nanoparticles: Effect on the magnetic properties and catalytic activity.
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Affiliation(s)
| | - Maria Rodríguez-Castillo
- Departamento de Química
- Universidad de La Rioja
- Centro de Investigación en Síntesis Química (CISQ)
- Complejo Científico-Tecnológico
- Logroño
| | | | | | | | - Miguel Monge
- Departamento de Química
- Universidad de La Rioja
- Centro de Investigación en Síntesis Química (CISQ)
- Complejo Científico-Tecnológico
- Logroño
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10
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Gökçal B, Hamaloğlu KÖ, Kip Ç, Güngör SY, Büber E, Tuncel A. Glutathione detection in human serum using gold nanoparticle decorated, monodisperse porous silica microspheres in the magnetic form. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:5219-5228. [PMID: 33079092 DOI: 10.1039/d0ay01292k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A nanozyme for glutathione (GSH) detection in a broad concentration range was synthesized. GSH is usually detected up to an upper limit of 100 μM using current noble metal nanozymes due to the sharp decrease in the colorimetric response with the increasing GSH concentration. Strong inhibition of colorimetric reactions by GSH adsorbed onto noble metal based nanozymes in the form of non-porous, nanoscale particulate materials dispersed in an aqueous medium is the reason for the sharp decrease in the colorimetric response. In the present study, a new magnetic nanozyme synthesized by immobilization of Au nanoparticles (Au NPs) on magnetic, monodisperse porous silica microspheres (>5 μm) obtained by a "staged-shape templating sol-gel protocol" exhibited peroxidase-like activity up to a GSH concentration of 5000 μM. A more controlled linear decrease in the peroxidase-like activity with a lower slope with respect to that of similar nanozymes was observed with the increasing GSH concentration. The proposed design allowed the GSH detection in a broader concentration range depending on the adsorption of GSH onto the Au NPs immobilized on magnetic, monodisperse porous silica microspheres. A calibration plot allowing the detection of GSH in a broad concentration range up to 3300 μM was obtained using the magnetic nanozyme. The GSH concentration was also determined in human serum by elevating the upper detection range and adjusting the sensitivity of detection via controlling the nanozyme concentration.
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Affiliation(s)
- Burcu Gökçal
- Chemical Engineering Department, Hacettepe University, Ankara, 06800, Turkey.
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11
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Komkova MA, Zarochintsev AA, Karyakina EE, Karyakin AA. Electrochemical and sensing properties of Prussian Blue based nanozymes “artificial peroxidase”. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114048] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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He Y, Zhou X, Zhou L, Zhang X, Ma L, Jiang Y, Gao J. Self-Reducing Prussian Blue on Ti3C2Tx MXene Nanosheets as a Dual-Functional Nanohybrid for Hydrogen Peroxide and Pesticide Sensing. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02154] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ying He
- School of Chemical Engineering and Technology, Hebei University of Technology, 8 Guangrong Road, Hongqiao District, Tianjin 300130, P. R. China
| | - Xitong Zhou
- School of Chemical Engineering and Technology, Hebei University of Technology, 8 Guangrong Road, Hongqiao District, Tianjin 300130, P. R. China
| | - Liya Zhou
- School of Chemical Engineering and Technology, Hebei University of Technology, 8 Guangrong Road, Hongqiao District, Tianjin 300130, P. R. China
| | - Xiaoning Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, 8 Guangrong Road, Hongqiao District, Tianjin 300130, P. R. China
| | - Li Ma
- School of Chemical Engineering and Technology, Hebei University of Technology, 8 Guangrong Road, Hongqiao District, Tianjin 300130, P. R. China
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, 8 Guangrong Road, Hongqiao District, Tianjin 300130, P. R. China
- National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China
| | - Jing Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, 8 Guangrong Road, Hongqiao District, Tianjin 300130, P. R. China
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13
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Co3O4-g-C3N4 composites with enhanced peroxidase-like activities for the degradation of environmental rhodamine B. REACTION KINETICS MECHANISMS AND CATALYSIS 2020. [DOI: 10.1007/s11144-020-01815-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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14
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Wang L, Li S, Zhang X, Huang Y. CoSe 2 hollow microspheres with superior oxidase-like activity for ultrasensitive colorimetric biosensing. Talanta 2020; 216:121009. [PMID: 32456902 DOI: 10.1016/j.talanta.2020.121009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 04/02/2020] [Accepted: 04/04/2020] [Indexed: 02/08/2023]
Abstract
As one of the transition metal dichalcogenide, CoSe2 has received much attention because of its superior physicochemical properties. In this work, a self-templated approach was proposed for constructing CoSe2 hollow microspheres by utilizing ZIF-67 hollow sphere as a template. In the followed selenylation process, selenium vapor reacts with cobalt ion in ZIF-67 to form CoSe2 microspheres. The obtained CoSe2 microspheres retain the cavity of the ZIF-67 and massive uniformly dispersed CoSe2 nanoparticles are embedded throughout carbon walls. The hollow interior and porous structure of CoSe2 microspheres provide an enhanced surface-volume ratio and short charge/mass transfer distance. The CoSe2 microspheres show a typical oxidase-like property able to promote 3,3',5,5'-tetramethylbenzidine (TMB) oxidation by dissolved oxygen to produce an intensive color reaction. Reactive oxygen species trials demonstrate that ·OH, 1O2 and O2•- radicals coexist in the TMB-CoSe2 system. Based on its inhibitive role, a rapid and ultrasensitive determination of glutathione was reached, showing four orders of magnitude linear range from 0.005 to 10 μM and a limit of detection of 4.62 nM (S/N = 3). The assay has been successfully used to glutathione determination in practical samples.
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Affiliation(s)
- Liuting Wang
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Siqi Li
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Xiaodan Zhang
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Yuming Huang
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China.
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15
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Dong H, Fan Y, Zhang W, Gu N, Zhang Y. Catalytic Mechanisms of Nanozymes and Their Applications in Biomedicine. Bioconjug Chem 2019; 30:1273-1296. [PMID: 30966739 DOI: 10.1021/acs.bioconjchem.9b00171] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The research on nanozymes has increased dramatically in recent years and a new interdiscipline, nanozymology, has emerged. A variety of nanomaterials have been designed to mimic the characteristics of natural enzymes, which connects an important bridge between nanotechnology and biological science. Unlike natural enzymes, the nanoscale properties of nanozymes endow them with the potential to regulate their enzymatic-like activity from different perspectives. The mechanisms behind those methods are intriguing. In this Review, we introduce these mechanisms from the aspects of surface chemistry, surface modification, molecular imprinting, and hybridization and then focus attention on some specific catalytic mechanisms of several representative nanozymes. The applications of nanozymes ranging from bioassay, imaging, to disease therapy are also discussed in detail to prove the fact that the inherent physicochemical properties of nanomaterials not only make nanozymes the analogues of biological enzymes, but also endow them with incomparable advantages and broad prospects in biomedical fields. Finally, four characteristics and some challenges of nanozymes are summarized.
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Affiliation(s)
- Haijiao Dong
- School of Biological Science and Medical Engineering , Southeast University, State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices , Nanjing , Jiangsu 210096 , P.R. China
| | - Yaoyao Fan
- School of Biological Science and Medical Engineering , Southeast University, State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices , Nanjing , Jiangsu 210096 , P.R. China
| | - Wei Zhang
- School of Biological Science and Medical Engineering , Southeast University, State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices , Nanjing , Jiangsu 210096 , P.R. China.,The Jiangsu Province Research Institute for Clinical Medicine , The First Affiliated Hospital of Nanjing Medical University , Nanjing 210029 , P.R. China
| | - Ning Gu
- School of Biological Science and Medical Engineering , Southeast University, State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices , Nanjing , Jiangsu 210096 , P.R. China
| | - Yu Zhang
- School of Biological Science and Medical Engineering , Southeast University, State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices , Nanjing , Jiangsu 210096 , P.R. China
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16
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Attar F, Shahpar MG, Rasti B, Sharifi M, Saboury AA, Rezayat SM, Falahati M. Nanozymes with intrinsic peroxidase-like activities. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.12.011] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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17
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Aktara MN, Nayim S, Sahoo NK, Hossain M. The synthesis of thiol-stabilized silver nanoparticles and their application towards the nanomolar-level colorimetric recognition of glutathione. NEW J CHEM 2019. [DOI: 10.1039/c9nj01360a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synthesis and characterization of 5-methyl-1,3,4-thiadiazole-2-thiol fabricated silver nanoparticles and their application to detect glutathione.
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Affiliation(s)
- Mt Nasima Aktara
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721 102
- India
| | - Sk Nayim
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721 102
- India
| | - Nandan Kumar Sahoo
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721 102
- India
| | - Maidul Hossain
- Department of Chemistry and Chemical Technology
- Vidyasagar University
- Midnapore 721 102
- India
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18
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Human serum albumin templated MnO 2 nanosheets are oxidase mimics for colorimetric determination of hydrogen peroxide and for enzymatic determination of glucose. Mikrochim Acta 2018; 185:559. [PMID: 30470905 DOI: 10.1007/s00604-018-3099-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 11/15/2018] [Indexed: 12/19/2022]
Abstract
This paper reports on a colorimetric assay for H2O2 and glucose. It is based on the use of human serum albumin-templated MnO2 nanosheets that possess oxidase-like activity. They are capable of oxidizing 3,3',5,5'-tetramethylbenzidine (TMB) with oxygen to give a blue product (oxTMB) with an absorbance maximum at 652 nm. When H2O2 is introduced, the MnO2 nanosheets are reduced to Mn(II) ions, and this inhibits the formation of oxTMB. Based on these findings, a colorimetric assay was established for H2O2 that has a 0.56 μM detection limit. If glucose is oxidized by glucose oxidase under formation of H2O2, the nanosheets can be used to quantify H2O2 and thereby to sense glucose. Response is linear in the 0.5 μM to 50 μM glucose concentration range, and the detection limit is 0.32 μM. The method was applied to the determination of glucose in spiked serum samples and gave satisficatory results. Graphical abstract Human serum albumin (HSA) is used as a template for the synthesis of MnO2 nanosheet. These possess oxidase mimicking activity. H2O2 can reduce the nanosheets. The effect is exploited in colorimetric assays for H2O2 and glucose using tetramethylbenzidine (TMB) as a chromogenic substrate.
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19
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Komkova MA, Karyakina EE, Karyakin AA. Catalytically Synthesized Prussian Blue Nanoparticles Defeating Natural Enzyme Peroxidase. J Am Chem Soc 2018; 140:11302-11307. [PMID: 30118222 DOI: 10.1021/jacs.8b05223] [Citation(s) in RCA: 166] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We synthesized Prussian Blue (PB) nanoparticles through catalytic reaction involving hydrogen peroxide (H2O2) activation. The resulting nanoparticles display the size-dependent catalytic rate constants in H2O2 reduction, which are significantly improved compared to natural enzyme peroxidase: for PB nanoparticles 200 nm in diameter, the turnover number is 300 times higher; for 570 nm diameter nanoparticles, it is 4 orders of magnitude higher. Comparing to the known peroxidase-like nanozymes, the advantages of the reported PB nanoparticles are their true enzymatic properties: (1) enzymatic specificity (an absence of oxidase-like activity) and (2) an ability to operate in physiological solutions. The ultrahigh activity and enzymatic specificity of the catalytically synthesized PB nanoparticles together with high stability and low cost, obviously peculiar to noble metal free inorganic materials, would allow the substitution of natural and recombinant peroxidases in biotechnology and analytical sciences.
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Affiliation(s)
- Maria A Komkova
- Chemistry faculty of M.V. Lomonosov Moscow State University , 119991 , Moscow , Russia
| | - Elena E Karyakina
- Chemistry faculty of M.V. Lomonosov Moscow State University , 119991 , Moscow , Russia
| | - Arkady A Karyakin
- Chemistry faculty of M.V. Lomonosov Moscow State University , 119991 , Moscow , Russia
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20
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Wang Y, Liu Y, Ding F, Zhu X, Yang L, Zou P, Rao H, Zhao Q, Wang X. Colorimetric determination of glutathione in human serum and cell lines by exploiting the peroxidase-like activity of CuS-polydopamine-Au composite. Anal Bioanal Chem 2018; 410:4805-4813. [PMID: 29882077 DOI: 10.1007/s00216-018-1117-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 04/17/2018] [Accepted: 04/27/2018] [Indexed: 01/18/2023]
Abstract
In this study, we developed a simple colorimetric approach to detect glutathione (GSH). The proposed approach is based on the ability of CuS-PDA-Au composite material to catalytically oxidize 3,3',5,5'-tetramethylbenzidine (TMB) to ox-TMB to induce a blue color with an absorption peak centered at 652 nm. However, the introduction of GSH can result in a decrease in oxidized TMB; similarly, it can combine with Au nanoparticles (Au NPs) on the surface of CuS-PDA-Au composite material. Both approaches can result in a fading blue color and a reduction of the absorbance at 652 nm. Based on this above, we proposed a technique to detect GSH quantitatively and qualitatively through UV-Vis spectroscopy and naked eye, respectively. This approach demonstrates a low detection limit of 0.42 μM with a broad detection range of 5 × 10-7-1 × 10-4 M with the assistance of UV-Vis spectroscopy. More importantly, this approach is convenient and rapid. This method was successfully applied to GSH detection in human serum and cell lines. Graphical abstract A colorimetric approach has been developed by exploiting the peroxidase-like activity of CuS-polydopamine-Au composite for sensitive glutathione detection.
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Affiliation(s)
- Yanying Wang
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, Sichuan, China
| | - Yaqin Liu
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, Sichuan, China
| | - Fang Ding
- Suzhou Institute of Systems Medicine, Suzhou, 215123, Jiangsu, China
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, China
| | - Xiaoyan Zhu
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, Sichuan, China
| | - Li Yang
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, Sichuan, China
| | - Ping Zou
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, Sichuan, China
| | - Hanbing Rao
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, Sichuan, China.
| | - Qingbiao Zhao
- Key Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering, East China Normal University, Shanghai, 200241, China
| | - Xianxiang Wang
- College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an, 625014, Sichuan, China.
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21
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Song L, Zhu Y, Yang Z, Wang C, Lu X. Oxidase-mimicking activity of perovskite LaMnO3+δ nanofibers and their application for colorimetric sensing. J Mater Chem B 2018; 6:5931-5939. [DOI: 10.1039/c8tb01706a] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Excellent oxidase-like mimics based on the ABX3-type perovskite structure and the corresponding sensitive colorimetric detection of l-cysteine have been developed.
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Affiliation(s)
- Lifei Song
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Yun Zhu
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Zezhou Yang
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Ce Wang
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Xiaofeng Lu
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
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22
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Li W, Wang J, Zhu J, Zheng YQ. Co3O4 nanocrystals as an efficient catalase mimic for the colorimetric detection of glutathione. J Mater Chem B 2018; 6:6858-6864. [DOI: 10.1039/c8tb01948g] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Co3O4 nanocrystals with ultrasmall size, excellent stability and catalytic activity were used as an efficient catalase mimic.
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Affiliation(s)
- Wenying Li
- Research Center of Applied Solid State Chemistry
- Chemistry Institute for Synthesis and Green Application
- Ningbo University
- Ningbo 315211
- P. R. China
| | - Jiayan Wang
- Medical School of Ningbo University
- Ningbo 315211
- P. R. China
| | - Jiacheng Zhu
- Medical School of Ningbo University
- Ningbo 315211
- P. R. China
| | - Yue-Qing Zheng
- Research Center of Applied Solid State Chemistry
- Chemistry Institute for Synthesis and Green Application
- Ningbo University
- Ningbo 315211
- P. R. China
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23
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Gao M, Lu X, Nie G, Chi M, Wang C. Hierarchical CNFs/MnCo 2O 4.5 nanofibers as a highly active oxidase mimetic and its application in biosensing. NANOTECHNOLOGY 2017; 28:485708. [PMID: 28980529 DOI: 10.1088/1361-6528/aa9135] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Recently, much attention has been paid on the nanomaterial-based artificial enzymes due to their tunable catalytic activity, high stability and low cost compared to the natural enzymes. Different from the peroxidase mimics which have been studied for several decades, nanomaterials with oxidase-like property are burgeoning in the recent years. In this paper, hierarchical carbon nanofibers (CNFs)/MnCo2O4.5 nanofibers as efficient oxidase mimics are reported. The products are synthesized by an electrospinning technique and an electrochemcial deposition process in which the CNFs are used as the working electrode where MnCo2O4.5 nanosheets deposit on. The resulting binary metal oxide-based nanocomposites exhibit a good oxidase-like activity toward the oxidations of 3,3',5,5'tetramethylbenzi-dine (TMB), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium (ABTS) salt and o-phenylenediamine (OPD) without exogenous addition of H2O2. The system of CNFs/MnCo2O4.5-TMB can be used as a candidate to detect sulfite and ascorbic acid via a colorimetric method with a high sensitivity. This work provides the efficient utilization and potential applications of binary metal oxide-based nanocomposites with oxidase activities in biosensors and other biotechnologies.
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Affiliation(s)
- Mu Gao
- Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun, 130012, People's Republic of China
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24
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Colorimetric glutathione assay based on the peroxidase-like activity of a nanocomposite consisting of platinum nanoparticles and graphene oxide. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2429-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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25
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Li J, Zhang F, Hu Z, Song W, Li G, Liang G, Zhou J, Li K, Cao Y, Luo Z, Cai K. Drug "Pent-Up" in Hollow Magnetic Prussian Blue Nanoparticles for NIR-Induced Chemo-Photothermal Tumor Therapy with Trimodal Imaging. Adv Healthc Mater 2017; 6. [PMID: 28464527 DOI: 10.1002/adhm.201700005] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 02/13/2017] [Indexed: 01/03/2023]
Abstract
The study reports a biocompatible smart drug delivery system based on a doxorubicin (DOX) blending phase-change material of 1-pentadecanol loaded hollow magnetic Prussian blue nanoparticles, resulting in HMNP-PB@Pent@DOX. The system possesses concentration-dependent high thermogenesis (>50 °C) when applying a near-infrared (NIR) laser irradiation only for 5 min. Furthermore, the system realizes near "zero release" of drug and is efficiently triggered by NIR for drug delivery in an "on" and "off" manner, thus inducing cell apoptosis in vitro and in vivo. Moreover, the system clearly indicates tumor site with trimodal imaging of magnetic resonance imaging, photoacoustic tomography imaging, and infrared thermal imaging. Furthermore, the system achieves efficient chemo-photothermal combined tumor therapy in vivo with 808 nm laser irradiation for 5 min at 1.2 W cm-2 , revealing the good tumor inhibition effect comparing with those of chemotherapy or photothermal therapy alone. The system is also confirmed to be biocompatible in regard to the mortality rate.
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Affiliation(s)
- Jinghua Li
- College of Medical Technology and Engineering; Henan University of Science and Technology; Luoyang 471023 P. R. China
| | - Fengshou Zhang
- College of Medical Technology and Engineering; Henan University of Science and Technology; Luoyang 471023 P. R. China
| | - Zhigang Hu
- College of Medical Technology and Engineering; Henan University of Science and Technology; Luoyang 471023 P. R. China
| | - Weidong Song
- College of Medical Technology and Engineering; Henan University of Science and Technology; Luoyang 471023 P. R. China
| | - Guangda Li
- College of Medical Technology and Engineering; Henan University of Science and Technology; Luoyang 471023 P. R. China
| | - Gaofeng Liang
- College of Medical Technology and Engineering; Henan University of Science and Technology; Luoyang 471023 P. R. China
| | - Jun Zhou
- Key Laboratory of Biorheological Science and Technology; Ministry of Education; College of Bioengineering; Chongqing University; Chongqing 400044 P. R. China
| | - Ke Li
- Key Laboratory of Biorheological Science and Technology; Ministry of Education; College of Bioengineering; Chongqing University; Chongqing 400044 P. R. China
| | - Yang Cao
- Chongqing Key Laboratory of Ultrasound Molecular Imaging; Medical University of Chongqing Institute of Ultrasound Imaging; Second Affiliated Hospital; Chongqing Medical University; Chongqing 400010 P. R. China
| | - Zhong Luo
- Key Laboratory of Biorheological Science and Technology; Ministry of Education; College of Bioengineering; Chongqing University; Chongqing 400044 P. R. China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology; Ministry of Education; College of Bioengineering; Chongqing University; Chongqing 400044 P. R. China
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26
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Cui M, Zhao Y, Wang C, Song Q. The oxidase-like activity of iridium nanoparticles, and their application to colorimetric determination of dissolved oxygen. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2326-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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27
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Gao M, Lu X, Chi M, Chen S, Wang C. Fabrication of oxidase-like hollow MnCo2O4 nanofibers and their sensitive colorimetric detection of sulfite and l-cysteine. Inorg Chem Front 2017. [DOI: 10.1039/c7qi00458c] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hollow MnCo2O4 nanofibers as efficient oxidase mimics for sensitive detection of sulfite and l-cysteine have been developed.
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Affiliation(s)
- Mu Gao
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Xiaofeng Lu
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Maoqiang Chi
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Sihui Chen
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Ce Wang
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
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28
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Nagvenkar AP, Gedanken A. Cu0.89Zn0.11O, A New Peroxidase-Mimicking Nanozyme with High Sensitivity for Glucose and Antioxidant Detection. ACS APPLIED MATERIALS & INTERFACES 2016; 8:22301-22308. [PMID: 27503256 DOI: 10.1021/acsami.6b05354] [Citation(s) in RCA: 132] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Nanomaterial-based enzyme mimetics (nanozymes) is an emerging field of research that promises to produce alternatives to natural enzymes for a variety of applications. The search for the most cost-effective and efficient inorganic nanomaterials, such as metal oxides, cannot be won by pristine CuO. However, unlike CuO, the Zn-doped CuO (Zn-CuO) nanoparticles reported in this paper reveal superior peroxidase-like enzyme activity. This places Zn-CuO in a good position to participate in a range of activities aimed at developing diverse enzyme applications. The peroxidase-like activity was tested and confirmed against various chromogenic substrates in the presence of H2O2 and obeyed the Michaelis-Menten enzymatic pathway. The mechanism of enhanced enzymatic activity was proved by employing terephthalic acid as a fluorescence probe and by electron spin resonance. The nanozyme, when tested for the detection of glucose, showed a substantial enhancement in the detection selectivity. The limit of detection (LOD) was also decreased reaching a limit as low as 0.27 ppm. Such a low LOD has not been reported so far for the metal oxides without any surface modifications. Moreover, the nanozyme (Zn-CuO) was utilized to detect the three antioxidants tannic acid, tartaric acid, and ascorbic acid and the relative strength of their antioxidant capacity was compared.
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Affiliation(s)
- Anjani P Nagvenkar
- Department of Chemistry and Institute for Nanotechnology and Advanced Materials, Bar-Ilan University , Ramat Gan 5290002, Israel
| | - Aharon Gedanken
- Department of Chemistry and Institute for Nanotechnology and Advanced Materials, Bar-Ilan University , Ramat Gan 5290002, Israel
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29
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Kuah E, Toh S, Yee J, Ma Q, Gao Z. Enzyme Mimics: Advances and Applications. Chemistry 2016; 22:8404-30. [PMID: 27062126 DOI: 10.1002/chem.201504394] [Citation(s) in RCA: 183] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Indexed: 12/29/2022]
Abstract
Enzyme mimics or artificial enzymes are a class of catalysts that have been actively pursued for decades and have heralded much interest as potentially viable alternatives to natural enzymes. Aside from having catalytic activities similar to their natural counterparts, enzyme mimics have the desired advantages of tunable structures and catalytic efficiencies, excellent tolerance to experimental conditions, lower cost, and purely synthetic routes to their preparation. Although still in the midst of development, impressive advances have already been made. Enzyme mimics have shown immense potential in the catalysis of a wide range of chemical and biological reactions, the development of chemical and biological sensing and anti-biofouling systems, and the production of pharmaceuticals and clean fuels. This Review concerns the development of various types of enzyme mimics, namely polymeric and dendrimeric, supramolecular, nanoparticulate and proteinic enzyme mimics, with an emphasis on their synthesis, catalytic properties and technical applications. It provides an introduction to enzyme mimics and a comprehensive summary of the advances and current standings of their applications, and seeks to inspire researchers to perfect the design and synthesis of enzyme mimics and to tailor their functionality for a much wider range of applications.
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Affiliation(s)
- Evelyn Kuah
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Seraphina Toh
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Jessica Yee
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Qian Ma
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Zhiqiang Gao
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax.
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30
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Jia H, Yang D, Han X, Cai J, Liu H, He W. Peroxidase-like activity of the Co3O4 nanoparticles used for biodetection and evaluation of antioxidant behavior. NANOSCALE 2016; 8:5938-45. [PMID: 26911916 DOI: 10.1039/c6nr00860g] [Citation(s) in RCA: 119] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Nanostructured enzyme mimics are of great interest as promising alternatives to artificial enzymes for biomedical and catalytic applications. Studying the chemical interactions between antioxidants and nano-enzymes may result in a better understanding of the antioxidant capability of antioxidants and may help improve the function of artificial enzymes to better mimic natural enzymes. In this study, using Co3O4 nanoparticles (NPs) as peroxidase mimics to catalyze the oxidation of chromophoric substrates by H2O2, we developed a platform that acts as a biosensor for hydrogen peroxide and glucose and that can study the inhibitory effects of natural antioxidants on peroxidase mimics. This method can be applied specifically to glucose detection in real samples. Three natural antioxidants, gallic acid (GA), tannic acid (TA), and ascorbic acid (AA), were compared for their antioxidant capabilities. We found that these three antioxidants efficiently inhibit peroxidase-like activity with concentration dependence. The antioxidants showed different efficiencies, in the following order: tannic acid > gallic acid > ascorbic acid. They also showed distinct modes of inhibition based on different interaction mechanisms. This study serves as a proof-of-concept that nano-enzyme mimics can be used to evaluate antioxidant capabilities and to screen enzyme inhibitors.
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Affiliation(s)
- Huimin Jia
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, Xuchang University, Xuchang, Henan 461000, P. R. China.
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31
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Wang T, Su P, Li H, Yang Y, Yang Y. Triple-enzyme mimetic activity of Co3O4 nanotubes and their applications in colorimetric sensing of glutathione. NEW J CHEM 2016. [DOI: 10.1039/c6nj02280d] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Based on the oxidase-like activity of Co3O4 nanotubes, a simple and sensitive colorimetric sensor for GSH detection was investigated.
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Affiliation(s)
- Ting Wang
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Ping Su
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Huifen Li
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Ye Yang
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Yi Yang
- Beijing Key Laboratory of Environmentally Harmful Chemical Analysis
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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