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D'Agostino C, Chillocci C, Polli F, Surace L, Simonetti F, Agostini M, Brutti S, Mazzei F, Favero G, Zumpano R. Smartphone-Based Electrochemical Biosensor for On-Site Nutritional Quality Assessment of Coffee Blends. Molecules 2023; 28:5425. [PMID: 37513297 PMCID: PMC10386176 DOI: 10.3390/molecules28145425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
This work aimed to develop an easy-to-use smartphone-based electrochemical biosensor to quickly assess a coffee blend's total polyphenols (Phs) content at the industrial and individual levels. The device is based on a commercial carbon-based screen-printed electrode (SPE) modified with multi-walled carbon nanotubes (CNTs) and gold nanoparticles (GNPs). At the same time, the biological recognition element, Laccase from Trametes versicolor, TvLac, was immobilized on the sensor surface by using glutaraldehyde (GA) as a cross-linking agent. The platform was electrochemically characterized to ascertain the influence of the SPE surface modification on its performance. The working electrode (WE) surface morphology characterization was obtained by scanning electron microscopy (SEM) and Fourier-transform infrared (FT-IR) imaging. All the measurements were carried out with a micro-potentiostat, the Sensit Smart by PalmSens, connected to a smartphone. The developed biosensor provided a sensitivity of 0.12 μA/μM, a linear response ranging from 5 to 70 μM, and a lower detection limit (LOD) of 2.99 μM. Afterward, the biosensor was tested for quantifying the total Phs content in coffee blends, evaluating the influence of both the variety and the roasting degree. The smartphone-based electrochemical biosensor's performance was validated through the Folin-Ciocâlteu standard method.
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Affiliation(s)
- Cristine D'Agostino
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Claudia Chillocci
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Francesca Polli
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Luca Surace
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Federica Simonetti
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Marco Agostini
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Sergio Brutti
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Franco Mazzei
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Gabriele Favero
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Rosaceleste Zumpano
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
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Amperometric biosensor based on immobilized laccase onto Cys-Ag@Fe3O4 magnetic nanoparticles for selective catechol detection. J APPL ELECTROCHEM 2023. [DOI: 10.1007/s10800-023-01871-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2023]
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3
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Kyomuhimbo HD, Brink HG. Applications and immobilization strategies of the copper-centred laccase enzyme; a review. Heliyon 2023; 9:e13156. [PMID: 36747551 PMCID: PMC9898315 DOI: 10.1016/j.heliyon.2023.e13156] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 01/11/2023] [Accepted: 01/18/2023] [Indexed: 01/26/2023] Open
Abstract
Laccase is a multi-copper enzyme widely expressed in fungi, higher plants, and bacteria which facilitates the direct reduction of molecular oxygen to water (without hydrogen peroxide production) accompanied by the oxidation of an electron donor. Laccase has attracted attention in biotechnological applications due to its non-specificity and use of molecular oxygen as secondary substrate. This review discusses different applications of laccase in various sectors of food, paper and pulp, waste water treatment, pharmaceuticals, sensors, and fuel cells. Despite the many advantages of laccase, challenges such as high cost due to its non-reusability, instability in harsh environmental conditions, and proteolysis are often encountered in its application. One of the approaches used to minimize these challenges is immobilization. The various methods used to immobilize laccase and the different supports used are further extensively discussed in this review.
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Munteanu IG, Apetrei C. Assessment of the Antioxidant Activity of Catechin in Nutraceuticals: Comparison between a Newly Developed Electrochemical Method and Spectrophotometric Methods. Int J Mol Sci 2022; 23:ijms23158110. [PMID: 35897695 PMCID: PMC9329966 DOI: 10.3390/ijms23158110] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/11/2022] [Accepted: 07/20/2022] [Indexed: 11/16/2022] Open
Abstract
The analysis of antioxidants in different foodstuffs has become an active area of research, which has led to many recently developed antioxidant assays. Many antioxidants exhibit inherent electroactivity, and, therefore, the use of electrochemical methods could be a viable approach for evaluating the overall antioxidant activity of a matrix of nutraceuticals without the need for adding reactive species. Green tea is believed to be a healthy beverage due to a number of therapeutic benefits. Catechin, one of its constituents, is an important antioxidant and possesses free radical scavenging abilities. The present paper describes the electrochemical properties of three screen-printed electrodes (SPEs), the first one based on carbon nanotubes (CNTs), the second one based on gold nanoparticles (GNPs) and the third one based on carbon nanotubes and gold nanoparticles (CNTs-GNPs). All three electrodes were modified with the laccase (Lac) enzyme, using glutaraldehyde as a cross-linking agent between the amino groups on the laccase and aldehyde groups of the reticulation agent. As this enzyme is a thermostable catalyst, the performance of the biosensors has been greatly improved. Electro-oxidative properties of catechin were investigated using cyclic voltammetry (CV) and differential pulse voltammetry (DPV), and these demonstrated that the association of CNTs with GNPs significantly improved the sensitivity and selectivity of the biosensor. The corresponding limit of detection (LOD) was estimated to be 5.6 × 10−8 M catechin at the CNT-Lac/SPE, 1.3 × 10−7 M at the GNP-Lac/SPE and 4.9 × 10−8 M at the CNT-GNP-Lac/SPE. The biosensors were subjected to nutraceutical formulations containing green tea in order to study their catechin content, using CNT-GNP-Lac/SPE, through DPV. Using a paired t-test, the catechin content estimated was in agreement with the manufacturer’s specification. In addition, the relationship between the CNT-GNP-Lac/SPE response at a specific potential and the antioxidant activity of nutraceuticals, as determined by conventional spectrophotometric methods (DPPH, galvinoxyl and ABTS), is discussed in the context of developing a fast biosensor for the relative antioxidant activity quantification.
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Kavetskyy T, Smutok O, Demkiv O, Kukhazh Y, Stasyuk N, Leonenko E, Kiv A, Kobayashi Y, Kinomura A, Šauša O, Gonchar M, Katz E. Improvement of laccase biosensor characteristics using sulfur-doped TiO2 nanoparticles. Bioelectrochemistry 2022; 147:108215. [DOI: 10.1016/j.bioelechem.2022.108215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/15/2022] [Accepted: 07/20/2022] [Indexed: 11/02/2022]
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Revisiting Some Recently Developed Conducting Polymer@Metal Oxide Nanostructures for Electrochemical Sensing of Vital Biomolecules: A Review. JOURNAL OF ANALYSIS AND TESTING 2022. [DOI: 10.1007/s41664-022-00209-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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7
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Deniz SA, Goker S, Toppare L, Soylemez S. Fabrication of D–A–D type conducting polymer, carbon nanotubes and silica nanoparticle-based laccase biosensor for catechol detection. NEW J CHEM 2022. [DOI: 10.1039/d2nj02147a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A sensing platform for catechol detection incorporating triple key materials based on SiNPs, D–A–D type conducting polymer, and MWCNTs.
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Affiliation(s)
| | - Seza Goker
- Department of Chemistry, Middle East Technical University, Ankara 06800, Turkey
- Solid Propellant Department, Roketsan Missiles Inc, Ankara 06780, Turkey
| | - Levent Toppare
- Department of Chemistry, Middle East Technical University, Ankara 06800, Turkey
- Department of Polymer Science and Technology, Middle East Technical University, Ankara 06800, Turkey
- Department of Biotechnology, Middle East Technical University, Ankara 06800, Turkey
| | - Saniye Soylemez
- Department of Biomedical Engineering, Necmettin Erbakan University, Konya 42090, Turkey
- Department of Chemistry, Ordu University, Ordu 52200, Turkey
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Al-Dairy AR, Albiss B, Jaradat AA. Computational Modeling of ZnO-NRs and Graphene Nanostructure as a Glucose Biosensor. SENSING AND IMAGING 2021; 22:30. [DOI: 10.1007/s11220-021-00353-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 05/13/2021] [Accepted: 06/16/2021] [Indexed: 09/02/2023]
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Optimization and characterization of immobilized laccase on titanium dioxide nanostructure and its application in removal of Remazol Brilliant Blue R. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Bertel L, Miranda DA, García-Martín JM. Nanostructured Titanium Dioxide Surfaces for Electrochemical Biosensing. SENSORS (BASEL, SWITZERLAND) 2021; 21:6167. [PMID: 34577374 PMCID: PMC8468921 DOI: 10.3390/s21186167] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/03/2021] [Accepted: 09/13/2021] [Indexed: 12/03/2022]
Abstract
TiO2 electrochemical biosensors represent an option for biomolecules recognition associated with diseases, food or environmental contaminants, drug interactions and related topics. The relevance of TiO2 biosensors is due to the high selectivity and sensitivity that can be achieved. The development of electrochemical biosensors based on nanostructured TiO2 surfaces requires knowing the signal extracted from them and its relationship with the properties of the transducer, such as the crystalline phase, the roughness and the morphology of the TiO2 nanostructures. Using relevant literature published in the last decade, an overview of TiO2 based biosensors is here provided. First, the principal fabrication methods of nanostructured TiO2 surfaces are presented and their properties are briefly described. Secondly, the different detection techniques and representative examples of their applications are provided. Finally, the functionalization strategies with biomolecules are discussed. This work could contribute as a reference for the design of electrochemical biosensors based on nanostructured TiO2 surfaces, considering the detection technique and the experimental electrochemical conditions needed for a specific analyte.
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Affiliation(s)
- Linda Bertel
- CMN-CIMBIOS Group, Escuela de Física, Universidad Industrial de Santander, Cra 27 Cll 9, Bucaramanga 680002, Colombia; (L.B.); (D.A.M.)
| | - David A. Miranda
- CMN-CIMBIOS Group, Escuela de Física, Universidad Industrial de Santander, Cra 27 Cll 9, Bucaramanga 680002, Colombia; (L.B.); (D.A.M.)
| | - José Miguel García-Martín
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8, E-28760 Madrid, Spain
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11
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Development of a Novel Electrochemical Biosensor Based on Carbon Nanofibers-Cobalt Phthalocyanine-Laccase for the Detection of p-Coumaric Acid in Phytoproducts. Int J Mol Sci 2021; 22:ijms22179302. [PMID: 34502203 PMCID: PMC8431354 DOI: 10.3390/ijms22179302] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 12/18/2022] Open
Abstract
The present paper developed a new enzymatic biosensor whose support is a screen-printed electrode based on carbon nanofibers modified with cobalt phthalocyanine and laccase (CNF-CoPc-Lac/SPE) to determine the p-coumaric acid (PCA) content by cyclic voltammetry and square wave voltammetry. Sensor modification was achieved by the casting and cross-linking technique, using glutaraldehyde as a reticulation agent. The biosensor’s response showed the PCA redox processes in a very stable and sensitive manner. The calibration curve was developed for the concentration range of p-coumaric acid of 0.1–202.5 μM, using cyclic voltammetry and chronoamperometry. The biosensor yielded optimal results for the linearity range 0.4–6.4 μM and stood out by low LOD and LOQ values, i.e., 4.83 × 10−7 M and 1.61 × 10−6 M, respectively. PCA was successfully determined in three phytoproducts of complex composition. The results obtained by the voltammetric method were compared to the ones obtained by the FTIR method. The amount of p-coumaric acid determined by means of CNF-CoPc-Lac/SPE was close to the one obtained by the standard spectrometric method.
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12
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Nochit P, Sub-udom P, Teepoo S. Multiwalled Carbon Nanotube (MWCNT) Based Electrochemical Paper-Based Analytical Device (ePAD) for the Determination of Catechol in Wastewater. ANAL LETT 2021. [DOI: 10.1080/00032719.2021.1872591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Phatchada Nochit
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Thanyaburi, Pathum Thani, Thailand
| | - Paitoon Sub-udom
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Thanyaburi, Pathum Thani, Thailand
| | - Siriwan Teepoo
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Thanyaburi, Pathum Thani, Thailand
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Raymundo-Pereira PA, Silva TA, Caetano FR, Ribovski L, Zapp E, Brondani D, Bergamini MF, Marcolino LH, Banks CE, Oliveira ON, Janegitz BC, Fatibello-Filho O. Polyphenol oxidase-based electrochemical biosensors: A review. Anal Chim Acta 2020; 1139:198-221. [PMID: 33190704 DOI: 10.1016/j.aca.2020.07.055] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/14/2020] [Accepted: 07/20/2020] [Indexed: 02/06/2023]
Abstract
The detection of phenolic compounds is relevant not only for their possible benefits to human health but also for their role as chemical pollutants, including as endocrine disruptors. The required monitoring of such compounds on-site or in field analysis can be performed with electrochemical biosensors made with polyphenol oxidases (PPO). In this review, we describe biosensors containing the oxidases tyrosinase and laccase, in addition to crude extracts and tissues from plants as enzyme sources. From the survey in the literature, we found that significant advances to obtain sensitive, robust biosensors arise from the synergy reached with a diversity of nanomaterials employed in the matrix. These nanomaterials are mostly metallic nanoparticles and carbon nanostructures, which offer a suitable environment to preserve the activity of the enzymes and enhance electron transport. Besides presenting a summary of contributions to electrochemical biosensors containing PPOs in the last five years, we discuss the trends and challenges to take these biosensors to the market, especially for biomedical applications.
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Affiliation(s)
| | - Tiago A Silva
- Departamento de Metalurgia e Química, Centro Federal de Educação Tecnológica de Minas Gerais (CEFET-MG), 35180-008, Timóteo, MG, Brazil
| | - Fábio R Caetano
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal Do Paraná (UFPR), 81.531-980, Curitiba, PR, Brazil
| | - Laís Ribovski
- São Carlos Institute of Physics, University of São Paulo, São Carlos, SP, Brazil
| | - Eduardo Zapp
- Department of Exact Sciences and Education, Federal University of Santa Catarina, 89036-256, Brazil
| | - Daniela Brondani
- Department of Exact Sciences and Education, Federal University of Santa Catarina, 89036-256, Brazil
| | - Marcio F Bergamini
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal Do Paraná (UFPR), 81.531-980, Curitiba, PR, Brazil
| | - Luiz H Marcolino
- Laboratório de Sensores Eletroquímicos (LabSensE), Departamento de Química, Universidade Federal Do Paraná (UFPR), 81.531-980, Curitiba, PR, Brazil
| | - Craig E Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - Osvaldo N Oliveira
- São Carlos Institute of Physics, University of São Paulo, São Carlos, SP, Brazil
| | - Bruno C Janegitz
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, 13600-970, Araras, SP, Brazil.
| | - Orlando Fatibello-Filho
- Department of Chemistry, Federal University of São Carlos, 13560-970, São Carlos, SP, Brazil.
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Fartas FM, Abdullah J, Yusof NA, Sulaiman Y, Saiman MI, Zaid MH. Laccase Electrochemical Biosensor Based on Graphene-Gold/Chitosan Nanocomposite Film for Bisphenol A Detection. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411015666190117114804] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background:
Bisphenol A (BPA) is considered one of the most common chemicals that
could cause environmental endocrine disrupting. Therefore, there is an increasing demand for simple,
rapid and sensitive methods for BPA detection that result from BPA leaching into foods and beverages
from storage containers. Herein, a simple laccase electrochemical biosensor was developed for
the determination of BPA based on Screen-Printed Carbon Electrode (SPCE) modified graphenegold/
chitosan. The synergic effect of graphene-gold/chitosan nanocomposite as electrode modifier
greatly facilitates electron-transfer processes between the electrolyte and laccase enzyme, thus leads
to a remarkably improved sensitivity for bisphenol A detection.
Methods:
In this study, laccase enzyme is immobilized onto the Screen-Printed Carbon Electrode
(SPCE) modified Graphene-Decorated Gold Nanoparticles (Gr-AuNPs) with Chitosan (Chit). The
surface structure of nanocomposite was studied using different techniques including Field Emission
Scanning Microscopy (FESEM), TRANSMISSION Electron Microscopy (TEM), Raman spectroscopy
and Energy Dispersive X-ray (EDX). Meanwhile, the electrochemical performances of the modified
electrodes were studied using Cyclic Voltammetry (CV) and Differential Pulse Voltammetry (DPV).
Results:
The developed laccase biosensor offered excellent analytical performance for the detection of
BPA with a sensitivity of 0.271 μA/μM and Limit of Detection (LOD) of 0.023 μM, respectively.
Moreover, the constructed biosensor showed good reproducibility, selectivity and stability towards
BPA. The sensor has been used to detect BPA in a different type of commercial plastic products as a
real sample and satisfactory result was obtained when compared with the HPLC method.
Conclusion:
The proposed electrochemical laccase biosensor exhibits good result which is
considered as a promising candidate for a simple, rapid and sensitive method especially in the resource-
limited condition.
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Affiliation(s)
- Fuzi M. Fartas
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor D.E., Malaysia
| | - Jaafar Abdullah
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor D.E., Malaysia
| | - Nor A. Yusof
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor D.E., Malaysia
| | - Yusran Sulaiman
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor D.E., Malaysia
| | - Mohd I. Saiman
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor D.E., Malaysia
| | - Mohd H.M. Zaid
- Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor D.E., Malaysia
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Direct Exposure of Dry Enzymes to Atmospheric Pressure Non-Equilibrium Plasmas: The Case of Tyrosinase. MATERIALS 2020; 13:ma13092181. [PMID: 32397486 PMCID: PMC7254212 DOI: 10.3390/ma13092181] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/30/2020] [Accepted: 05/06/2020] [Indexed: 02/07/2023]
Abstract
The direct interaction of atmospheric pressure non-equilibrium plasmas with tyrosinase (Tyr) was investigated under typical conditions used in surface processing. Specifically, Tyr dry deposits were exposed to dielectric barrier discharges (DBDs) fed with helium, helium/oxygen, and helium/ethylene mixtures, and effects on enzyme functionality were evaluated. First of all, results show that DBDs have a measurable impact on Tyr only when experiments were carried out using very low enzyme amounts. An appreciable decrease in Tyr activity was observed upon exposure to oxygen-containing DBD. Nevertheless, the combined use of X-ray photoelectron spectroscopy and white-light vertical scanning interferometry revealed that, in this reactive environment, Tyr deposits displayed remarkable etching resistance, reasonably conferred by plasma-induced changes in their surface chemical composition as well as by their coffee-ring structure. Ethylene-containing DBDs were used to coat tyrosinase with a hydrocarbon polymer film, in order to obtain its immobilization. In particular, it was found that Tyr activity can be fully retained by properly adjusting thin film deposition conditions. All these findings enlighten a high stability of dry enzymes in various plasma environments and open new opportunities for the use of atmospheric pressure non-equilibrium plasmas in enzyme immobilization strategies.
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Salvo-Comino C, Garcia-Hernandez C, Garcia-Cabezon C, Rodriguez-Mendez M. Promoting laccase sensing activity for catechol detection using LBL assemblies of chitosan/ionic liquid/phthalocyanine as immobilization surfaces. Bioelectrochemistry 2020; 132:107407. [DOI: 10.1016/j.bioelechem.2019.107407] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 09/25/2019] [Accepted: 10/15/2019] [Indexed: 02/08/2023]
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Application of eukaryotic and prokaryotic laccases in biosensor and biofuel cells: recent advances and electrochemical aspects. Appl Microbiol Biotechnol 2018; 102:10409-10423. [PMID: 30327832 DOI: 10.1007/s00253-018-9421-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/25/2018] [Accepted: 09/26/2018] [Indexed: 12/25/2022]
Abstract
Laccases exhibit a wide range of applications, especially in the electrochemical field, where they are regarded as a potential biotic component. Laccase-based biosensors have immense practical applications in the food, environmental, and medical fields. The application of laccases as biocathodes in enzymatic biofuel cells has promising potential in the preparation of implantable equipment. Extensive studies have been directed towards the potential role of fungal laccases as biotic components of electrochemical equipment. In contrast, the potential of prokaryotic laccases in electrochemistry has been not fully understood. However, there has been recent and rapid progress in the discovery and characterization of new types of prokaryotic laccases. In this review, we have comprehensively discussed the application of different sources of laccases as a biocatalytic component in various fields of application. Further, we described the potential of different types of laccases in bioelectrochemical applications.
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Magnetic silica/titania xerogel applied as electrochemical biosensor for catechol and catecholamines. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.127] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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20
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Jirimali HD, Nagarale RK, Saravanakumar D, Shin W. Ferrocene Tethered Polyvinyl Alcohol/Silica Film Electrode for Electrocatalytic Sulfite Sensing. ELECTROANAL 2018. [DOI: 10.1002/elan.201700459] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Harishchandra Digambar Jirimali
- Department of Chemistry and Interdisciplinary Program of Integrated Biotechnology; Sogang University; Seoul 121-742 Republic of Korea
- School of Chemical Sciences; North Maharashtra University; Jalgaon (MS) 425001 India
| | - Rajaram Krishna Nagarale
- Department of Chemistry and Interdisciplinary Program of Integrated Biotechnology; Sogang University; Seoul 121-742 Republic of Korea
| | - Durai Saravanakumar
- Department of Chemistry and Interdisciplinary Program of Integrated Biotechnology; Sogang University; Seoul 121-742 Republic of Korea
| | - Woonsup Shin
- Department of Chemistry and Interdisciplinary Program of Integrated Biotechnology; Sogang University; Seoul 121-742 Republic of Korea
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The Development of Non-Enzymatic Glucose Biosensors Based on Electrochemically Prepared Polypyrrole-Chitosan-Titanium Dioxide Nanocomposite Films. NANOMATERIALS 2017; 7:nano7060129. [PMID: 28561760 PMCID: PMC5485776 DOI: 10.3390/nano7060129] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 05/21/2017] [Accepted: 05/22/2017] [Indexed: 11/20/2022]
Abstract
The performance of a modified electrode of nanocomposite films consisting of polypyrrole–chitosan–titanium dioxide (Ppy-CS-TiO2) has been explored for the developing a non-enzymatic glucose biosensors. The synergy effect of TiO2 nanoparticles (NPs) and conducting polymer on the current responses of the electrode resulted in greater sensitivity. The incorporation of TiO2 NPs in the nanocomposite films was confirmed by X-ray photoelectron spectroscopy (XPS) spectra. FE-SEM and HR-TEM provided more evidence for the presence of TiO2 in the Ppy-CS structure. Glucose biosensing properties were determined by amperommetry and cyclic voltammetry (CV). The interfacial properties of nanocomposite electrodes were studied by electrochemical impedance spectroscopy (EIS). The developed biosensors showed good sensitivity over a linear range of 1–14 mM with a detection limit of 614 μM for glucose. The modified electrode with Ppy-CS nanocomposite also exhibited good selectivity and long-term stability with no interference effect. The Ppy-CS-TiO2 nanocomposites films presented high electron transfer kinetics. This work shows the role of nanomaterials in electrochemical biosensors and describes the process of their homogeneous distribution in composite films by a one-step electrochemical process, where all components are taken in a single solution in the electrochemical cell.
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