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Pham ML, Maghsoomi S, Brandl M. An Electrochemical Aptasensor for the Detection of Freshwater Cyanobacteria. BIOSENSORS 2024; 14:28. [PMID: 38248405 PMCID: PMC10813013 DOI: 10.3390/bios14010028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/20/2023] [Accepted: 12/20/2023] [Indexed: 01/23/2024]
Abstract
Aphanizomenon is a genus of cyanobacteria that is filamentous and nitrogen-fixing and inhabits aquatic environments. This genus is known as one of the major producers of cyanotoxins that can affect water quality after the bloom period. In this study, an electrochemical aptasensor is demonstrated using a specific aptamer to detect Aphanizomenon sp. ULC602 for the rapid and sensitive detection of this bacterium. The principal operation of the generated aptasensor is based on the conformational change in the aptamer attached to the electrode surface in the presence of the target bacterium, resulting in a decrease in the current peak, which is measured by square-wave voltammetry (SWV). This aptasensor has a limit of detection (LOD) of OD750~0.3, with an extension to OD750~1.2 and a sensitivity of 456.8 μA·OD750-1·cm-2 without interference from other cyanobacteria. This is the first aptasensor studied that provides rapid detection to monitor the spread of this bacterium quickly in a targeted manner.
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Affiliation(s)
- Mai-Lan Pham
- Center for Water and Environmental Sensors, Department for Integrated Sensor Systems, University for Continuing Education Krems, Dr.-Karl-Dorrek-Straße 30, 3500 Krems an der Donau, Austria; (S.M.); (M.B.)
| | - Somayeh Maghsoomi
- Center for Water and Environmental Sensors, Department for Integrated Sensor Systems, University for Continuing Education Krems, Dr.-Karl-Dorrek-Straße 30, 3500 Krems an der Donau, Austria; (S.M.); (M.B.)
- Institute of Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Kinderspitalgasse 15, 1090 Vienna, Austria
| | - Martin Brandl
- Center for Water and Environmental Sensors, Department for Integrated Sensor Systems, University for Continuing Education Krems, Dr.-Karl-Dorrek-Straße 30, 3500 Krems an der Donau, Austria; (S.M.); (M.B.)
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2
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Sen R, Das S, Nath A, Maharana P, Kar P, Verpoort F, Liang P, Roy S. Electrocatalytic Water Oxidation: An Overview With an Example of Translation From Lab to Market. Front Chem 2022; 10:861604. [PMID: 35646820 PMCID: PMC9131097 DOI: 10.3389/fchem.2022.861604] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/30/2022] [Indexed: 12/03/2022] Open
Abstract
Water oxidation has become very popular due to its prime role in water splitting and metal–air batteries. Thus, the development of efficient, abundant, and economical catalysts, as well as electrode design, is very demanding today. In this review, we have discussed the principles of electrocatalytic water oxidation reaction (WOR), the electrocatalyst and electrode design strategies for the most efficient results, and recent advancement in the oxygen evolution reaction (OER) catalyst design. Finally, we have discussed the use of OER in the Oxygen Maker (OM) design with the example of OM REDOX by Solaire Initiative Private Ltd. The review clearly summarizes the future directions and applications for sustainable energy utilization with the help of water splitting and the way forward to develop better cell designs with electrodes and catalysts for practical applications. We hope this review will offer a basic understanding of the OER process and WOR in general along with the standard parameters to evaluate the performance and encourage more WOR-based profound innovations to make their way from the lab to the market following the example of OM REDOX.
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Affiliation(s)
- Rakesh Sen
- Eco-Friendly Applied Materials Laboratory (EFAML), Department of Chemical Sciences, Materials Science Centre, Indian Institute of Science Education and Research- Kolkata, Kolkata, India
| | - Supriya Das
- Eco-Friendly Applied Materials Laboratory (EFAML), Department of Chemical Sciences, Materials Science Centre, Indian Institute of Science Education and Research- Kolkata, Kolkata, India
| | - Aritra Nath
- Eco-Friendly Applied Materials Laboratory (EFAML), Department of Chemical Sciences, Materials Science Centre, Indian Institute of Science Education and Research- Kolkata, Kolkata, India
| | - Priyanka Maharana
- Eco-Friendly Applied Materials Laboratory (EFAML), Department of Chemical Sciences, Materials Science Centre, Indian Institute of Science Education and Research- Kolkata, Kolkata, India
| | - Pradipta Kar
- Solaire Initiative Private Limited, Bhubaneshwar and Kolkata, India
| | - Francis Verpoort
- Solaire Initiative Private Limited, Bhubaneshwar and Kolkata, India
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, China
- Center for Environmental and Energy Research, Ghent University Global Campus, Incheon, South Korea
- *Correspondence: Francis Verpoort, ; Pei Liang, ; Soumyajit Roy,
| | - Pei Liang
- Solaire Initiative Private Limited, Bhubaneshwar and Kolkata, India
- *Correspondence: Francis Verpoort, ; Pei Liang, ; Soumyajit Roy,
| | - Soumyajit Roy
- Eco-Friendly Applied Materials Laboratory (EFAML), Department of Chemical Sciences, Materials Science Centre, Indian Institute of Science Education and Research- Kolkata, Kolkata, India
- Solaire Initiative Private Limited, Bhubaneshwar and Kolkata, India
- *Correspondence: Francis Verpoort, ; Pei Liang, ; Soumyajit Roy,
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Białas K, Moschou D, Marken F, Estrela P. Electrochemical sensors based on metal nanoparticles with biocatalytic activity. Mikrochim Acta 2022; 189:172. [PMID: 35364739 PMCID: PMC8975783 DOI: 10.1007/s00604-022-05252-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/26/2022] [Indexed: 01/06/2023]
Abstract
Biosensors have attracted a great deal of attention, as they allow for the translation of the standard laboratory-based methods into small, portable devices. The field of biosensors has been growing, introducing innovations into their design to improve their sensing characteristics and reduce sample volume and user intervention. Enzymes are commonly used for determination purposes providing a high selectivity and sensitivity; however, their poor shelf-life is a limiting factor. Researchers have been studying the possibility of substituting enzymes with other materials with an enzyme-like activity and improved long-term stability and suitability for point-of-care biosensors. Extra attention is paid to metal and metal oxide nanoparticles, which are essential components of numerous enzyme-less catalytic sensors. The bottleneck of utilising metal-containing nanoparticles in sensing devices is achieving high selectivity and sensitivity. This review demonstrates similarities and differences between numerous metal nanoparticle-based sensors described in the literature to pinpoint the crucial factors determining their catalytic performance. Unlike other reviews, sensors are categorised by the type of metal to study their catalytic activity dependency on the environmental conditions. The results are based on studies on nanoparticle properties to narrow the gap between fundamental and applied research. The analysis shows that the catalytic activity of nanozymes is strongly dependent on their intrinsic properties (e.g. composition, size, shape) and external conditions (e.g. pH, type of electrolyte, and its chemical composition). Understanding the mechanisms behind the metal catalytic activity and how it can be improved helps designing a nanozyme-based sensor with the performance matching those of an enzyme-based device.
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Affiliation(s)
- Katarzyna Białas
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio), University of Bath, Bath, BA2 7AY, UK.,Department of Electronic and Electrical Engineering, University of Bath, Bath, BA2 7AY, UK
| | - Despina Moschou
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio), University of Bath, Bath, BA2 7AY, UK.,Department of Electronic and Electrical Engineering, University of Bath, Bath, BA2 7AY, UK
| | - Frank Marken
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio), University of Bath, Bath, BA2 7AY, UK.,Department of Chemistry, University of Bath, Bath, BA2 7AY, UK
| | - Pedro Estrela
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio), University of Bath, Bath, BA2 7AY, UK. .,Department of Electronic and Electrical Engineering, University of Bath, Bath, BA2 7AY, UK.
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Kornii A, Saska V, Lisnyak VV, Tananaiko O. Carbon Nanostructured Screen‐printed Electrodes Modified with CuO/Glucose Oxidase/Maltase/SiO
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Composite Film for Maltose Determination. ELECTROANAL 2020. [DOI: 10.1002/elan.202000059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anastasiia Kornii
- Department of analytical chemistryTaras Shevchenko National University of Kyiv 64, Volodymyrska str. Kyiv 01601 Ukraine
| | - Vita Saska
- Department of analytical chemistryTaras Shevchenko National University of Kyiv 64, Volodymyrska str. Kyiv 01601 Ukraine
| | - Vladyslav V. Lisnyak
- Department of analytical chemistryTaras Shevchenko National University of Kyiv 64, Volodymyrska str. Kyiv 01601 Ukraine
| | - Oksana Tananaiko
- Department of analytical chemistryTaras Shevchenko National University of Kyiv 64, Volodymyrska str. Kyiv 01601 Ukraine
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Talib NAA, Salam F, Sulaiman Y. Development of Highly Sensitive Immunosensor for Clenbuterol Detection by Using Poly(3,4-ethylenedioxythiophene)/Graphene Oxide Modified Screen-Printed Carbon Electrode. SENSORS (BASEL, SWITZERLAND) 2018; 18:E4324. [PMID: 30544568 PMCID: PMC6308686 DOI: 10.3390/s18124324] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/29/2018] [Accepted: 11/03/2018] [Indexed: 12/31/2022]
Abstract
Clenbuterol (CLB) is an antibiotic and illegal growth promoter drug that has a long half-life and easily remains as residue and contaminates the animal-based food product that leads to various health problems. In this work, electrochemical immunosensor based on poly(3,4-ethylenedioxythiophene)/graphene oxide (PEDOT/GO) modified screen-printed carbon electrode (SPCE) for CLB detection was developed for antibiotic monitoring in a food product. The modification of SPCE with PEDOT/GO as a sensor platform was performed through electropolymerization, while the electrochemical assay was accomplished while using direct competitive format in which the free CLB and clenbuterol-horseradish peroxidase (CLB-HRP) in the solution will compete to form binding with the polyclonal anti-clenbuterol antibody (Ab) immobilized onto the modified electrode surface. A linear standard CLB calibration curve with R² = 0.9619 and low limit of detection (0.196 ng mL-1) was reported. Analysis of milk samples indicated that this immunosensor was able to detect CLB in real samples and the results that were obtained were comparable with enzyme-linked immunosorbent assays (ELISA).
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Affiliation(s)
- Nurul Ain A Talib
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
| | - Faridah Salam
- Biodiagnostic-Biosensor Programme, Biotechnology and Nanotechnology Research Centre, Malaysian Agricultural Research and Development Institute, Serdang 43400, Selangor, Malaysia.
| | - Yusran Sulaiman
- Functional Devices Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia.
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Broli N, Vallja L, Shehu A, Vasjari M. Determination of catechol in extract of tea using carbon paste electrode modified with banana tissue. J FOOD PROCESS PRES 2018. [DOI: 10.1111/jfpp.13838] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Nevila Broli
- Faculty of Natural Sciences, Department of Chemistry University of Tirana Tirana Albania
| | - Loreta Vallja
- Faculty of Natural Sciences, Department of Chemistry University of Tirana Tirana Albania
| | - Alma Shehu
- Faculty of Natural Sciences, Department of Chemistry University of Tirana Tirana Albania
| | - Majlinda Vasjari
- Faculty of Natural Sciences, Department of Chemistry University of Tirana Tirana Albania
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Gayathri P, Senthil Kumar A. Electrochemical behavior of the 1,10-phenanthroline ligand on a multiwalled carbon nanotube surface and its relevant electrochemistry for selective recognition of copper ion and hydrogen peroxide sensing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:10513-10521. [PMID: 25119115 DOI: 10.1021/la502651w] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
1,10-Phenanthroline (Phen) is a well-known benchmark ligand and has often been used in the coordination chemistry for the complexation of transition metal ions, such as Fe(2+), Ni(2+), and Co(2+). Because the electro-oxidation potential of Phen is much higher (>2 V versus Ag/AgCl) than the water decomposition potential, i.e., ∼1.5 V versus Ag/AgCl, in pH 7, it is practically difficult to electro-oxidize Phen in aqueous medium using any conventional electrodes, such as glassy carbon electrode (GCE), gold, and platinum. Interestingly, herein, we report an unexpected oxidation of Phen to a highly redox active 1,10-phenanthroline-5,6-dione (Phen-dione) and its confinement on a multiwalled carbon nanotube (MWCNT)-modified glassy carbon electrode (GCE/MWCNT@Phen-dione) surface by potential cycling of Phen-adsorbed GCE/MWCNT (GCE/MWCNT@Phen) from -1 to 1 V versus Ag/AgCl in pH 7 phosphate buffer solution. GCE/MWCNT@Phen-dione showed selective recognition of copper ion (GCE/MWCNT@Phen-dione-Cu(2+)) by catalyzing the hydrogen peroxide reduction reaction in a neutral pH solution. The precise structure of the Phen electro-oxidized product has been identified after characterizing the electrode and/or ethanolic extract of the product by various techniques, such as Raman, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) (for copper complex), liquid chromatography-mass spectrometry (LC-MS), electrospray ionization-mass spectrometry (ESI-MS) (for copper complex), cyclic voltammetry (CV), and in situ electrochemical quartz crystal microbalance (EQCM) and comparing electrochemical behavior of several control compounds, such as phenanthrene and 9,10-phenanthrenequinone. It is concluded that the product formed is 1,10-phenanthroline-5,6-dione, wherein the dione position is ortho to each other and the copper ion is complexed with nitrogen of the phenanthroline ring. With extended electrochemical oxidation of a structurally similar ligand, 2,2'-bipyridine failed to show any such electrochemical dynamics. Finally, applicability of GCE/MWCNT@Phen-dione-Cu(2+) for electrochemical sensing of hydrogen peroxide in a couple of real samples is successfully demonstrated.
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Affiliation(s)
- Prakasam Gayathri
- Environmental and Analytical Chemistry Division, School of Advanced Sciences, Vellore Institute of Technology University , Vellore 632 014, India
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8
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Saha T, Sengupta A, Hazra P, Talukdar P. In vitro sensing of Cu+through a green fluorescence rise of pyranine. Photochem Photobiol Sci 2014; 13:1427-33. [DOI: 10.1039/c4pp00097h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Tsai DM, Shih PR, Tai HW, Liu CY, Zen JM. A Capillary Electrophoresis End-Column Amperometric Detection System Incorporating Disposable Copper-Plated Screen-Printed Carbon Electrodes. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200500108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Lin MS, Wang JS, Chen PY, Yeh HH. Improvement of Pulse Amperometric Detection Integrated Automated Flow Injection Analysis of Ethylenethiourea Determination. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200400187] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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11
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Barathi P, Kumar AS. Electrochemical conversion of unreactive pyrene to highly redox-active 1,2-quinone derivatives on a carbon nanotube-modified gold electrode surface and its selective hydrogen peroxide sensing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:10617-10623. [PMID: 23930943 DOI: 10.1021/la402092r] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Pyrene (PYR) is a rigid, carcinogenic, unreactive, and nonelectrooxidizable compound. A multiwalled carbon nanotube (MWCNT)-modified gold electrode surface-bound electrochemical oxidation of PYR to a highly redox-active surface-confined quinone derivative (PYRO) at an applied potential of 1 V versus Ag/AgCl in pH 7 phosphate buffer solution has been demonstrated in this work. Among various carbon nanomaterials examined, the pristine MWCNT-modified gold electrode showed effective electrochemical oxidation of the PYR. The MWCNT's graphite impurity promotes the electrochemical oxidation reaction. Physicochemical and electrochemical characterizations of MWCNT@PYRO by Raman spectroscopy, FT-IR, X-ray photoelectron spectroscopy, and GC-MS reveal the presence of PYRO as pyrene-tetrone within the modified electrode. The quinone position of PYRO was identified as ortho-directing by an elegantly designed ortho-isomer-selective complexation reaction with copper ion as an MWCNT@PYRO-Cu(2+/1+)-modified electrode. Finally, a cytochrome c enzyme-modified Au/MWCNT@PYRO (i.e., Au/MWCNT@PYRO-Cyt c) was also developed and further demonstrated for the selective biosensing of hydrogen peroxide.
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Affiliation(s)
- Palani Barathi
- Environmental and Analytical Chemistry Division, School of Advanced Sciences, Vellore Institute of Technology University, Vellore-632 014, India
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12
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Conductive Polymer-Based Materials for Medical Electroanalytic Applications. MODERN ASPECTS OF ELECTROCHEMISTRY 2013. [DOI: 10.1007/978-1-4614-6148-7_8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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13
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Intermatrix synthesis of polymer-stabilized PGM@Cu core–shell nanoparticles with enhanced electrocatalytic properties. REACT FUNCT POLYM 2011. [DOI: 10.1016/j.reactfunctpolym.2011.05.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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14
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Lin MS, Chen CH, Chen Z. Development of structure-specific electrochemical sensor and its application for polyamines determination. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.10.083] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Kumar AS, Sornambikai S, Gayathri P, Zen JM. Selective covalent immobilization of catechol on activated carbon electrodes. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2009.12.016] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Stoyanova A, Tsakova V. Copper-modified poly(3,4-ethylenedioxythiophene) layers for selective determination of dopamine in the presence of ascorbic acid: II Role of the characteristics of the metal deposit. J Solid State Electrochem 2010. [DOI: 10.1007/s10008-010-1017-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Stoyanova A, Tsakova V. Copper-modified poly(3,4-ethylenedioxythiophene) layers for selective determination of dopamine in the presence of ascorbic acid: I. Role of the polymer layer thickness. J Solid State Electrochem 2010. [DOI: 10.1007/s10008-010-1007-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Yang CW, Zen JM, Kao YL, Hsu CT, Chung TC, Chang CC, Chou CC. Multiple screening of urolithic organic acids with copper nanoparticle-plated electrode: Potential assessment of urolithic risks. Anal Biochem 2009; 395:224-30. [DOI: 10.1016/j.ab.2009.08.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2009] [Revised: 08/06/2009] [Accepted: 08/16/2009] [Indexed: 11/16/2022]
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19
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Gimenes D, dos Santos W, Tormin T, Munoz R, Richter E. Flow-Injection Amperometric Method for Indirect Determination of Dopamine in the Presence of a Large Excess of Ascorbic Acid. ELECTROANAL 2009. [DOI: 10.1002/elan.200900331] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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20
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Xu Y, Zhang B, Wu S, Xia Y. The adsorption of dopamine on gold and its interactions with iron(III) ions studied by microcantilevers. Anal Chim Acta 2009; 649:117-22. [DOI: 10.1016/j.aca.2009.06.058] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2009] [Revised: 05/23/2009] [Accepted: 06/22/2009] [Indexed: 10/20/2022]
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21
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Phanthong C, Somasundrum M. Enhanced Sensitivity of 4-Chlorophenol Detection by Use of Nitrobenzene as a Liquid Membrane over a Carbon Nanotube-Modified Glassy Carbon Electrode. ELECTROANAL 2008. [DOI: 10.1002/elan.200704111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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22
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Wolfrum B, Zevenbergen M, Lemay S. Nanofluidic Redox Cycling Amplification for the Selective Detection of Catechol. Anal Chem 2008; 80:972-7. [PMID: 18193890 DOI: 10.1021/ac7016647] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bernhard Wolfrum
- Kavli Institute of Nanoscience, Section Molecular Biophysics, Technical University Delft, Delft, 2628 CJ, The Netherlands
| | - Marcel Zevenbergen
- Kavli Institute of Nanoscience, Section Molecular Biophysics, Technical University Delft, Delft, 2628 CJ, The Netherlands
| | - Serge Lemay
- Kavli Institute of Nanoscience, Section Molecular Biophysics, Technical University Delft, Delft, 2628 CJ, The Netherlands
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23
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Aziz M, Selvaraju T, Yang H. Selective Determination of Catechol in the Presence of Hydroquinone at Bare Indium Tin Oxide Electrodes via Peak-Potential Separation and Redox Cycling by Hydrazine. ELECTROANAL 2007. [DOI: 10.1002/elan.200703905] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Huang TK, Cheng TH, Yen MY, Hsiao WH, Wang LS, Chen FR, Kai JJ, Lee CY, Chiu HT. Growth of Cu nanobelt and Ag belt-like materials by surfactant-assisted galvanic reductions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:5722-6. [PMID: 17432884 DOI: 10.1021/la063316e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We demonstrate the syntheses of single crystalline Cu nanobelt and Ag belt-like materials via CTAC-assisted (CTAC, cetyltrimethylammonium chloride) galvanic reductions. The single crystalline face-centered cubic phase Cu nanobelt was prepared by reacting CuCl2(aq) with Al(s) in an aqueous solution of CTAC and HNO3. The Cu nanobelt exhibited a high-quality ribbon-like nanostructure with a thickness less than 15 nm, a width of 30-150 nm, and a length up to 10 microm. The belt-like Ag, with a thickness less than 10 nm, a width of 30-100 nm, a length up to 5 microm, and a novel single crystalline 4H structure, was prepared by reacting AgNO3(aq) and Cu(s) in an aqueous solution of CTAC.
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Affiliation(s)
- Ting-Kai Huang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30050, Republic of China
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25
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Welch C, Simm A, Compton R. Oxidation of Electrodeposited Copper on Boron Doped Diamond in Acidic Solution: Manipulating the Size of Copper Nanoparticles Using Voltammetry. ELECTROANAL 2006. [DOI: 10.1002/elan.200603493] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Welch CM, Compton RG. The use of nanoparticles in electroanalysis: a review. Anal Bioanal Chem 2006; 384:601-19. [PMID: 16402180 DOI: 10.1007/s00216-005-0230-3] [Citation(s) in RCA: 433] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2005] [Revised: 11/04/2005] [Accepted: 11/09/2005] [Indexed: 11/25/2022]
Abstract
Nanoparticles can display four unique advantages over macroelectrodes when used for electroanalysis: enhancement of mass transport, catalysis, high effective surface area and control over electrode microenvironment. Therefore, much work has been carried out into their formation, characterisation and employment for the detection of many electroactive species. This paper aims to give an overview of the investigations carried out in this field. Particular attention is paid to examples of the advantages and disadvantages nanoparticles show when compared to macroelectrodes and the advantages of one nanoparticle modification over another. Most work has been carried out using gold, silver and platinum metals. However, iron, nickel and copper are also reviewed with some examples of other metals such as iridium, ruthenium, cobalt, chromium and palladium. Some bimetallic nanoparticle modifications are also mentioned because they can cause unique catalysis through the mixing of the properties of both metals.
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Affiliation(s)
- Christine M Welch
- Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, UK
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Hsu CT, Chung HH, Lyuu HJ, Tsai DM, Kumar AS, Zen JM. An Electrochemical Cell Coupled with Disposable Screen-Printed Electrodes for Use in Flow Injection Analysis. ANAL SCI 2006; 22:35-8. [PMID: 16429769 DOI: 10.2116/analsci.22.35] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An electrochemical cell coupled with disposable screen-printed electrodes (SPEs) that is specifically designed for use in flow injection analysis (FIA) is described in this study. The cell is made of foldable polyoxymethylene (acetal) thick platelets with the bottom portion consisting of a cavity track to drag the SPEs in position and the top portion having predrilled T-like holes to arrange the Ag/AgCl reference electrode and stainless steel inlet & outlet. An "O ring" is suitably fixed on the top of the working electrode to form a thin-layer space where the electrochemical reaction can take place. Hydrodynamic characterization was validated by using a benchmark hexacyanoferrate redox couple. The results of practical analysis of glucose in human plasma clearly demonstrate the characteristics and applicability of the proposed wall-jet electrochemical cell in FIA.
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Affiliation(s)
- Cheng-Teng Hsu
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan
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Won MS, Rahman M, Kwon NH, Shankaran D, Shim YB. Square-Wave Voltammetric Detection of Dopamine at a Copper-(3-Mercaptopropyl) Trimethoxy Silane Complex Modified Electrode. ELECTROANAL 2005. [DOI: 10.1002/elan.200503369] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Castilho TJ, Sotomayor MDPT, Kubota LT. Amperometric biosensor based on horseradish peroxidase for biogenic amine determinations in biological samples. J Pharm Biomed Anal 2005; 37:785-91. [PMID: 15797802 DOI: 10.1016/j.jpba.2004.11.043] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2003] [Revised: 11/16/2004] [Accepted: 11/18/2004] [Indexed: 11/17/2022]
Abstract
An amperometric biosensor for total biogenic amine determinations, using a carbon paste electrode modified with horseradish peroxidase (HRP) enzyme is described. The HRP immobilization on graphite was made using bovine serum albumin, carbodiimide and glutaraldehyde. The biosensor response was optimized using serotonin and it presented the best performance in 0.1 mol l(-1) phosphate buffer (pH=7.0) containing 10 micromol l(-1) of hydrogen peroxide. Under optimized operational conditions at -50 mV versus SCE, a linear response range from 40 to 470 ng ml(-1) was obtained. The detection limit was 17 ng ml(-1) and the response time was 0.5s. The proposed sensor presented a stable response during 4h under continuous monitoring. The difference of the response between six sensor preparations was <2%. The sensor was applied in the determination of total biogenic amines (neurotransmitters) in rat blood samples with success, obtaining a recovery average of 102%.
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Andreescu D, Andreescu S, Sadik OA. Chapter 7 New materials for biosensors, biochips and molecular bioelectronics. BIOSENSORS AND MODERN BIOSPECIFIC ANALYTICAL TECHNIQUES 2005. [DOI: 10.1016/s0166-526x(05)44007-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Vergheese T, Berchmans S. Bio-inspired recognition of dopamine versus ascorbic acid. J Electroanal Chem (Lausanne) 2004. [DOI: 10.1016/j.jelechem.2004.03.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Simultaneous determination of phenolic compounds by using a dual enzyme electrodes system. J Electroanal Chem (Lausanne) 2004. [DOI: 10.1016/j.jelechem.2003.11.049] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Affiliation(s)
- Eric Bakker
- Department of Chemistry, Auburn University, Auburn, Alabama 36849, USA
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Kodera M, Kawata T, Kano K, Tachi Y, Itoh S, Kojo S. Mechanism for Aerobic Oxidation of 3,5-Di-tert-butylcatechol to 3,5-Di-tert-butyl-o-benzoquinone Catalyzed by Di-μ-hydroxo-dicopper(II) Complexes of Peralkylated Ethylelnediamine Ligands. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2003. [DOI: 10.1246/bcsj.76.1957] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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