1
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Travaglini L, Lam NT, Sawicki A, Cha HJ, Xu D, Micolich AP, Clark DS, Glover DJ. Fabrication of Electronically Conductive Protein-Heme Nanowires for Power Harvesting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2311661. [PMID: 38597694 DOI: 10.1002/smll.202311661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/11/2024] [Indexed: 04/11/2024]
Abstract
Electronically conductive protein-based materials can enable the creation of bioelectronic components and devices from sustainable and nontoxic materials, while also being well-suited to interface with biological systems, such as living cells, for biosensor applications. However, as proteins are generally electrical insulators, the ability to render protein assemblies electroactive in a tailorable manner can usher in a plethora of useful materials. Here, an approach to fabricate electronically conductive protein nanowires is presented by aligning heme molecules in proximity along protein filaments, with these nanowires also possessing charge transfer abilities that enable energy harvesting from ambient humidity. The heme-incorporated protein nanowires demonstrate electron transfer over micrometer distances, with conductive atomic force microscopy showing individual nanowires having comparable conductance to other previously characterized heme-based bacterial nanowires. Exposure of multilayer nanowire films to humidity produces an electrical current, presumably through water molecules ionizing carboxyl groups in the filament and creating an unbalanced total charge distribution that is enhanced by the heme. Incorporation of heme and potentially other metal-center porphyrin molecules into protein nanostructures could pave the way for structurally- and electrically-defined protein-based bioelectronic devices.
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Affiliation(s)
- Lorenzo Travaglini
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Nga T Lam
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Artur Sawicki
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Hee-Jeong Cha
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA
| | - Dawei Xu
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA
- CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100190, China
| | - Adam P Micolich
- School of Physics, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Douglas S Clark
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Dominic J Glover
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
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2
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Calabria D, Pace A, Lazzarini E, Trozzi I, Zangheri M, Guardigli M, Pieraccini S, Masiero S, Mirasoli M. Smartphone-Based Chemiluminescence Glucose Biosensor Employing a Peroxidase-Mimicking, Guanosine-Based Self-Assembled Hydrogel. BIOSENSORS 2023; 13:650. [PMID: 37367015 DOI: 10.3390/bios13060650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/09/2023] [Accepted: 06/11/2023] [Indexed: 06/28/2023]
Abstract
Chemiluminescence is widely used for hydrogen peroxide detection, mainly exploiting the highly sensitive peroxidase-luminol-H2O2 system. Hydrogen peroxide plays an important role in several physiological and pathological processes and is produced by oxidases, thus providing a straightforward way to quantify these enzymes and their substrates. Recently, biomolecular self-assembled materials obtained by guanosine and its derivatives and displaying peroxidase enzyme-like catalytic activity have received great interest for hydrogen peroxide biosensing. These soft materials are highly biocompatible and can incorporate foreign substances while preserving a benign environment for biosensing events. In this work, a self-assembled guanosine-derived hydrogel containing a chemiluminescent reagent (luminol) and a catalytic cofactor (hemin) was used as a H2O2-responsive material displaying peroxidase-like activity. Once loaded with glucose oxidase, the hydrogel provided increased enzyme stability and catalytic activity even in alkaline and oxidizing conditions. By exploiting 3D printing technology, a smartphone-based portable chemiluminescence biosensor for glucose was developed. The biosensor allowed the accurate measurement of glucose in serum, including both hypo- and hyperglycemic samples, with a limit of detection of 120 µmol L-1. This approach could be applied for other oxidases, thus enabling the development of bioassays to quantify biomarkers of clinical interest at the point of care.
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Affiliation(s)
- Donato Calabria
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Francesco Selmi 2, I-40126 Bologna, Italy
- Interdepartmental Centre for Industrial Aerospace Research (CIRI AEROSPACE), Alma Mater Studiorum-University of Bologna, Via Baldassarre Canaccini 12, I-47121 Forlì, Italy
| | - Andrea Pace
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Francesco Selmi 2, I-40126 Bologna, Italy
| | - Elisa Lazzarini
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Francesco Selmi 2, I-40126 Bologna, Italy
| | - Ilaria Trozzi
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Francesco Selmi 2, I-40126 Bologna, Italy
| | - Martina Zangheri
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Francesco Selmi 2, I-40126 Bologna, Italy
- Interdepartmental Centre for Industrial Agrofood Research (CIRI AGRO), Alma Mater Studiorum-University of Bologna, Via Quinto Bucci 336, I-47521 Cesena, Italy
- Interdepartmental Centre for Industrial Research in Advanced Mechanical Engineering Applications and Materials Technology (CIRI MAM), Alma Mater Studiorum-University of Bologna, Viale Risorgimento 2, I-40136 Bologna, Italy
| | - Massimo Guardigli
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Francesco Selmi 2, I-40126 Bologna, Italy
- Interdepartmental Centre for Industrial Aerospace Research (CIRI AEROSPACE), Alma Mater Studiorum-University of Bologna, Via Baldassarre Canaccini 12, I-47121 Forlì, Italy
- Interdepartmental Centre for Industrial Research in Renewable Resources, Environment, Sea and Energy (CIRI FRAME), Alma Mater Studiorum-University of Bologna, Via Sant'Alberto 163, I-48123 Ravenna, Italy
| | - Silvia Pieraccini
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Francesco Selmi 2, I-40126 Bologna, Italy
| | - Stefano Masiero
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Francesco Selmi 2, I-40126 Bologna, Italy
| | - Mara Mirasoli
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum-University of Bologna, Via Francesco Selmi 2, I-40126 Bologna, Italy
- Interdepartmental Centre for Industrial Aerospace Research (CIRI AEROSPACE), Alma Mater Studiorum-University of Bologna, Via Baldassarre Canaccini 12, I-47121 Forlì, Italy
- Interdepartmental Centre for Industrial Research in Renewable Resources, Environment, Sea and Energy (CIRI FRAME), Alma Mater Studiorum-University of Bologna, Via Sant'Alberto 163, I-48123 Ravenna, Italy
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3
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Bedendi G, De Moura Torquato LD, Webb S, Cadoux C, Kulkarni A, Sahin S, Maroni P, Milton RD, Grattieri M. Enzymatic and Microbial Electrochemistry: Approaches and Methods. ACS MEASUREMENT SCIENCE AU 2022; 2:517-541. [PMID: 36573075 PMCID: PMC9783092 DOI: 10.1021/acsmeasuresciau.2c00042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/12/2022] [Accepted: 08/15/2022] [Indexed: 06/17/2023]
Abstract
The coupling of enzymes and/or intact bacteria with electrodes has been vastly investigated due to the wide range of existing applications. These span from biomedical and biosensing to energy production purposes and bioelectrosynthesis, whether for theoretical research or pure applied industrial processes. Both enzymes and bacteria offer a potential biotechnological alternative to noble/rare metal-dependent catalytic processes. However, when developing these biohybrid electrochemical systems, it is of the utmost importance to investigate how the approaches utilized to couple biocatalysts and electrodes influence the resulting bioelectrocatalytic response. Accordingly, this tutorial review starts by recalling some basic principles and applications of bioelectrochemistry, presenting the electrode and/or biocatalyst modifications that facilitate the interaction between the biotic and abiotic components of bioelectrochemical systems. Focus is then directed toward the methods used to evaluate the effectiveness of enzyme/bacteria-electrode interaction and the insights that they provide. The basic concepts of electrochemical methods widely employed in enzymatic and microbial electrochemistry, such as amperometry and voltammetry, are initially presented to later focus on various complementary methods such as spectroelectrochemistry, fluorescence spectroscopy and microscopy, and surface analytical/characterization techniques such as quartz crystal microbalance and atomic force microscopy. The tutorial review is thus aimed at students and graduate students approaching the field of enzymatic and microbial electrochemistry, while also providing a critical and up-to-date reference for senior researchers working in the field.
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Affiliation(s)
- Giada Bedendi
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | | | - Sophie Webb
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Cécile Cadoux
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Amogh Kulkarni
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Selmihan Sahin
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Plinio Maroni
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Ross D. Milton
- Department
of Inorganic and Analytical Chemistry, Faculty of Sciences, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Matteo Grattieri
- Dipartimento
di Chimica, Università degli Studi
di Bari “Aldo Moro”, via E. Orabona 4, Bari 70125, Italy
- IPCF-CNR
Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, via E. Orabona 4, Bari 70125, Italy
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4
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Stasyuk N, Demkiv O, Gayda G, Zakalskiy A, Klepach H, Bisko N, Gonchar M, Nisnevitch M. Highly Porous 3D Gold Enhances Sensitivity of Amperometric Biosensors Based on Oxidases and CuCe Nanoparticles. BIOSENSORS 2022; 12:bios12070472. [PMID: 35884275 PMCID: PMC9312547 DOI: 10.3390/bios12070472] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/21/2022] [Accepted: 06/26/2022] [Indexed: 12/15/2022]
Abstract
Metallic nanoparticles potentially have wide practical applications in various fields of science and industry. In biosensorics, they usually act as catalysts or nanozymes (NZs) and as mediators of electron transfer. We describe here the development of amperometric biosensors (ABSs) based on purified oxidases, synthesized nanoparticles of CuCe (nCuCe), and micro/nanoporous gold (pAu), which were electro-deposited on a graphite electrode (GE). As an effective peroxidase (PO)-like NZ, nCuCe was used here as a hydrogen-peroxide-sensing platform in ABSs that were based on glucose oxidase, alcohol oxidase, methylamine oxidase, and L-arginine oxidase. At the same time, nCuCe is an electroactive mediator and has been used in laccase-based ABSs. As a result, the ABSs we constructed and characterized were based on glucose, methanol, methyl amine, L-arginine, and catechol, respectively. The developed nCuCe-based ABSs exhibited improved analytical characteristics in comparison with the corresponding PO-based ABSs. Additionally, the presence of pAu, with its extremely advanced chemo-sensing surface layer, was shown to significantly increase the sensitivities of all constructed ABSs. As an example, the bioelectrodes containing laccase/GE, laccase/nCuCe/GE, and laccase/nCuCe/pAu/GE exhibited sensitivities to catechol at 2300, 5055, and 9280 A·M−1·m−2, respectively. We demonstrate here that pAu is an effective carrier of electroactive nanomaterials coupled with oxidases, which may be promising in biosensors.
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Affiliation(s)
- Nataliya Stasyuk
- Institute of Cell Biology National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (N.S.); (O.D.); (A.Z.); (M.G.)
- Department of Biology and Chemistry, Drohobych Ivan Franko State Pedagogical University, 82100 Drohobych, Ukraine;
| | - Olha Demkiv
- Institute of Cell Biology National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (N.S.); (O.D.); (A.Z.); (M.G.)
| | - Galina Gayda
- Institute of Cell Biology National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (N.S.); (O.D.); (A.Z.); (M.G.)
- Correspondence: or (G.G.); (M.N.); Tel.: +380-32-261-2144 (G.G.); +972-3-914-3042 (M.N.)
| | - Andriy Zakalskiy
- Institute of Cell Biology National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (N.S.); (O.D.); (A.Z.); (M.G.)
- Institute of Animal Biology of the National Academy of Agrarian Sciences of Ukraine, 79034 Lviv, Ukraine
| | - Halyna Klepach
- Department of Biology and Chemistry, Drohobych Ivan Franko State Pedagogical University, 82100 Drohobych, Ukraine;
| | - Nina Bisko
- M. G. Kholodny Botany Institute, National Academy of Sciences of Ukraine, 01601 Kyiv, Ukraine;
| | - Mykhailo Gonchar
- Institute of Cell Biology National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (N.S.); (O.D.); (A.Z.); (M.G.)
- Department of Biology and Chemistry, Drohobych Ivan Franko State Pedagogical University, 82100 Drohobych, Ukraine;
| | - Marina Nisnevitch
- Department of Chemical Engineering, Ariel University, Kyriat-ha-Mada, Ariel 4070000, Israel
- Correspondence: or (G.G.); (M.N.); Tel.: +380-32-261-2144 (G.G.); +972-3-914-3042 (M.N.)
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5
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Haghayegh F, Salahandish R, Hassani M, Sanati-Nezhad A. Highly Stable Buffer-Based Zinc Oxide/Reduced Graphene Oxide Nanosurface Chemistry for Rapid Immunosensing of SARS-CoV-2 Antigens. ACS APPLIED MATERIALS & INTERFACES 2022; 14:10844-10855. [PMID: 35172574 DOI: 10.1021/acsami.1c24475] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The widespread and long-lasting effect of the COVID-19 pandemic has called attention to the significance of technological advances in the rapid diagnosis of SARS-CoV-2 virus. This study reports the use of a highly stable buffer-based zinc oxide/reduced graphene oxide (bbZnO/rGO) nanocomposite coated on carbon screen-printed electrodes for electrochemical immuno-biosensing of SARS-CoV-2 nuelocapsid (N-) protein antigens in spiked and clinical samples. The incorporation of a salt-based (ionic) matrix for uniform dispersion of the nanomixture eliminates multistep nanomaterial synthesis on the surface of the electrode and enables a stable single-step sensor nanocoating. The immuno-biosensor provides a limit of detection of 21 fg/mL over a linear range of 1-10 000 pg/mL and exhibits a sensitivity of 32.07 ohms·mL/pg·mm2 for detection of N-protein in spiked samples. The N-protein biosensor is successful in discriminating positive and negative clinical samples within 15 min, demonstrating its proof of concept used as a COVID-19 rapid antigen test.
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Affiliation(s)
- Fatemeh Haghayegh
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Mechanical and Manufacturing Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Razieh Salahandish
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Mechanical and Manufacturing Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
- Center for BioEngineering Research and Education, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Mohsen Hassani
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Mechanical and Manufacturing Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Amir Sanati-Nezhad
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Mechanical and Manufacturing Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
- Center for BioEngineering Research and Education, University of Calgary, Calgary, Alberta T2N 1N4, Canada
- Biomedical Engineering Graduate Program, University of Calgary, Calgary, Alberta T2N 1N4, Canada
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6
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Stasyuk N, Gayda G, Kavetskyy T, Gonchar M. Nanozymes with reductase-like activities: antioxidant properties and electrochemical behavior. RSC Adv 2022; 12:2026-2035. [PMID: 35425252 PMCID: PMC8979041 DOI: 10.1039/d1ra08127f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/05/2022] [Indexed: 01/18/2023] Open
Abstract
Nanozymes (NZs) as stable cost-effective mimics of natural enzymes may be promising catalysts in food and environmental biotechnology, biosensors, alternative energy and medicine. The majority of known NZs are mimetics of oxidoreductases, although there are only limited data regarding mimetics of reductases. In the present research, a number of metal-based NZs were synthesized via chemical methods and screened for their antioxidant ability in solution. The most effective reductase-like Zn/Cd/Cu NZ was characterized in detail. Its antioxidant properties in comparison with several food products and Trolox, as well as substrate specificity, size and composition were studied. Zn/Cd/Cu NZ was shown to mimic preferentially selenite reductase. The amperometric sensor was constructed possessing a high sensitivity (1700 A M-1 m-2) and a broad linear range (16-1000 μM) for selenite ions. The possibility to apply the fabricated sensor for selenite determination in commercial mineral water has been demonstrated.
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Affiliation(s)
- Nataliya Stasyuk
- Institute of Cell Biology, National Academy of Sciences of Ukraine 79005 Lviv Ukraine
- Drohobych Ivan Franko State Pedagogical University 82100 Drohobych Ukraine
| | - Galina Gayda
- Institute of Cell Biology, National Academy of Sciences of Ukraine 79005 Lviv Ukraine
| | - Taras Kavetskyy
- Drohobych Ivan Franko State Pedagogical University 82100 Drohobych Ukraine
- The John Paul II Catholic University of Lublin 20-950 Lublin Poland
| | - Mykhailo Gonchar
- Institute of Cell Biology, National Academy of Sciences of Ukraine 79005 Lviv Ukraine
- Drohobych Ivan Franko State Pedagogical University 82100 Drohobych Ukraine
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7
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Thangavel B, Berchmans S, Ganesh V. Hollow spheres of iron oxide as an “enzyme-mimic”: preparation, characterization and application as biosensors. NEW J CHEM 2022. [DOI: 10.1039/d1nj05460k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Nanostructured hollow spheres of iron oxide are demonstrated as “nanozymes” for the dual mode (spectrophotometric and electrochemical) detection of hydrogen peroxide & cholesterol biomarkers and a novel electrochemical sensing mechanism is proposed.
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Affiliation(s)
- Balamurugan Thangavel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Electrodics and Electrocatalysis (EEC) Division, CSIR–Central Electrochemical Research Institute (CSIR–CECRI), Karaikudi, 630003, Tamil Nadu, India
| | - Sheela Berchmans
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Electrodics and Electrocatalysis (EEC) Division, CSIR–Central Electrochemical Research Institute (CSIR–CECRI), Karaikudi, 630003, Tamil Nadu, India
| | - V. Ganesh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Electrodics and Electrocatalysis (EEC) Division, CSIR–Central Electrochemical Research Institute (CSIR–CECRI), Karaikudi, 630003, Tamil Nadu, India
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8
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Gayda GZ, Demkiv OM, Gurianov Y, Serkiz RY, Klepach HM, Gonchar MV, Nisnevitch M. "Green" Prussian Blue Analogues as Peroxidase Mimetics for Amperometric Sensing and Biosensing. BIOSENSORS 2021; 11:193. [PMID: 34200755 PMCID: PMC8229941 DOI: 10.3390/bios11060193] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/08/2021] [Accepted: 06/09/2021] [Indexed: 12/17/2022]
Abstract
Prussian blue analogs (PBAs) are well-known artificial enzymes with peroxidase (PO)-like activity. PBAs have a high potential for applications in scientific investigations, industry, ecology and medicine. Being stable and both catalytically and electrochemically active, PBAs are promising in the construction of biosensors and biofuel cells. The "green" synthesis of PO-like PBAs using oxido-reductase flavocytochrome b2 is described in this study. When immobilized on graphite electrodes (GEs), the obtained green-synthesized PBAs or hexacyanoferrates (gHCFs) of transition and noble metals produced amperometric signals in response to H2O2. HCFs of copper, iron, palladium and other metals were synthesized and characterized by structure, size, catalytic properties and electro-mediator activities. The gCuHCF, as the most effective PO mimetic with a flower-like micro/nano superstructure, was used as an H2O2-sensitive platform for the development of a glucose oxidase (GO)-based biosensor. The GO/gCuHCF/GE biosensor exhibited high sensitivity (710 A M-1m-2), a broad linear range and good selectivity when tested on real samples of fruit juices. We propose that the gCuHCF and other gHCFs synthesized via enzymes may be used as artificial POs in amperometric oxidase-based (bio)sensors.
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Affiliation(s)
- Galina Z. Gayda
- Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (O.M.D.); (R.Y.S.); (M.V.G.)
| | - Olha M. Demkiv
- Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (O.M.D.); (R.Y.S.); (M.V.G.)
- Faculty of Veterinary Hygiene, Ecology and Law, Stepan Gzhytskyi National University of Veterinary Medicine and Biotechnologies, 79000 Lviv, Ukraine
| | - Yanna Gurianov
- Department of Chemical Engineering, Ariel University, Kyriat-ha-Mada, Ariel 4070000, Israel;
| | - Roman Ya. Serkiz
- Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (O.M.D.); (R.Y.S.); (M.V.G.)
| | - Halyna M. Klepach
- Faculty of Biology and Natural Sciences, Drohobych Ivan Franko State Pedagogical University, 82100 Drohobych, Ukraine;
| | - Mykhailo V. Gonchar
- Institute of Cell Biology, National Academy of Sciences of Ukraine, 79005 Lviv, Ukraine; (O.M.D.); (R.Y.S.); (M.V.G.)
- Faculty of Biology and Natural Sciences, Drohobych Ivan Franko State Pedagogical University, 82100 Drohobych, Ukraine;
| | - Marina Nisnevitch
- Department of Chemical Engineering, Ariel University, Kyriat-ha-Mada, Ariel 4070000, Israel;
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9
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Peroxidase-Like Metal-Based Nanozymes: Synthesis, Catalytic Properties, and Analytical Application. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11020777] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nanozymes (NZs) are nanostructured artificial enzymes that mimic catalytic properties of natural enzymes. The NZs have essential advantages over natural enzymes, namely low preparation costs, stability, high surface area, self-assembling capability, size and composition-dependent activities, broad possibility for modification, and biocompatibility. NZs have wide potential practical applications as catalysts in biosensorics, fuel-cell technology, environmental biotechnology, and medicine. Most known NZs are mimetics of oxidoreductases or hydrolases. The present work aimed to obtain effective artificial peroxidase (PO)-like NZs (nanoPOs), to characterize them, and to estimate the prospects of their analytical application. NanoPOs were synthesized using a number of nanoparticles (NPs) of transition and noble metals and were screened for their catalytic activity in solution and on electrodes. The most effective nanoPOs were chosen as NZs and characterized by their catalytic activity. Kinetic parameters, size, and structure of the best nanoPOs (Cu/CeS) were determined. Cu/CeS-based sensor for H2O2 determination showed high sensitivity (1890 A·M−1·m−2) and broad linear range (1.5–20,000 µM). The possibility to apply Cu/CeS-NZ as a selective layer in an amperometric sensor for hydrogen-peroxide analysis of commercial disinfectant samples was demonstrated.
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10
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Biosensors-Recent Advances and Future Challenges. SENSORS 2020; 20:s20226645. [PMID: 33233539 PMCID: PMC7699460 DOI: 10.3390/s20226645] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 11/13/2020] [Indexed: 12/18/2022]
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