1
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Fonseca RF, Zaiat M. Development of a low-cost electrochemical sensor for monitoring components in wastewater treatment processes. ENVIRONMENTAL TECHNOLOGY 2023; 44:3883-3896. [PMID: 35532339 DOI: 10.1080/09593330.2022.2076156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 05/05/2022] [Indexed: 06/14/2023]
Abstract
Anaerobic digestion (AD) is a complex biological process widely used to decompose various types of organic matter, as well as to produce some metabolites and biogas. Diverse microorganism groups cooperate in many intricate metabolic routes so that organic matter can be degraded. However, any imbalance on these routes can lead to process instability or even failure. Therefore, a proper monitoring system, as well as a good understanding of the process, are key steps to improve performance and stability. Several mathematical models have been developed to represent AD. Despite this, process monitoring is mostly conducted by analytical methods, whose equipment is either expensive or the analyses are time-consuming, which may be a hindrance to low-budget developments. The objective of this study was to develop a low-cost electrochemical sensor to monitor components in wastewater treatment plants. Hundreds of synthetically supplemented sugarcane vinasse and synthetic domestic sewage samples were characterised. The obtained signals were used to calibrate principal component regression, partial least square and artificial neural network estimation models. The predictable variables were chemical oxygen demand, volatile fatty acids, sodium bicarbonate, beef extract, and lipids, and their R2 ranged from 0.84 to 0.99, depending on the component.
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Affiliation(s)
- Rafael Frederico Fonseca
- Biological Processes Laboratory, São Carlos School of Engineering (EESC), University of São Paulo (USP), Environmental Engineering - Block 4-F, São Carlos, Brazil
| | - Marcelo Zaiat
- Biological Processes Laboratory, São Carlos School of Engineering (EESC), University of São Paulo (USP), Environmental Engineering - Block 4-F, São Carlos, Brazil
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2
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Lambertz S, Franke M, Stelter M, Braeutigam P. Sensing of chemical oxygen demand (COD) by amperometric detection-dependence of current signal on concentration and type of organic species. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:630. [PMID: 37129679 PMCID: PMC10154276 DOI: 10.1007/s10661-023-11228-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/06/2023] [Indexed: 05/03/2023]
Abstract
The standard method to determine chemical oxygen demand (COD) with K2Cr2O6 uses harmful chemicals, has a long analysis time, and cannot be used for on-site online monitoring. It is therefore necessary to find a fast, cheap, and harmless alternative. The amperometric determination of COD on boron-doped diamond (BDD) electrodes is a promising approach. However, to be a suitable alternative, the electrochemical method must at least be able to determine the COD of water samples independently of the contained substances. Therefore, the current signal as a function of various organic materials was investigated for the first time. It was shown that the height of the signal current depended on the type of organic matter in single-substance solutions and that this substance dependency increases with the amount of COD. Those findings could be explained by the mechanism proposed for this reaction, showing that the selectivity of the reaction depends on the ratio of the concentration of hydroxyl radicals and organic species. We give an outlook on how to improve the method in order to increase the linear working range and avoid signal variance and how to further explain the signal variance.
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Affiliation(s)
- Samira Lambertz
- Institute for Technical Chemistry and Environmental Chemistry, Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
- Center for Energy and Environmental Chemistry, CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
| | - Marcus Franke
- Institute for Technical Chemistry and Environmental Chemistry, Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
- Center for Energy and Environmental Chemistry, CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
| | - Michael Stelter
- Institute for Technical Chemistry and Environmental Chemistry, Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
- Center for Energy and Environmental Chemistry, CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
- Fraunhofer IKTS, Fraunhofer Institute for Ceramic Technologies and Systems, Michael-Faraday-Straße 1, 07629, Hermsdorf, Germany
| | - Patrick Braeutigam
- Institute for Technical Chemistry and Environmental Chemistry, Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany.
- Center for Energy and Environmental Chemistry, CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany.
- Fraunhofer IKTS, Fraunhofer Institute for Ceramic Technologies and Systems, Michael-Faraday-Straße 1, 07629, Hermsdorf, Germany.
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3
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Zhang R, Li YS, Luo YX, Zhang XY, Wen R, Gao XF. A Carbon-dot Fluorescence Capillary Sensor for the Determination of Chemical Oxygen Demand. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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4
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Shin JH, Park TJ, Hyun MS, Park JP. A phage virus-based electrochemical biosensor for highly sensitive detection of ovomucoid. Food Chem 2022; 378:132061. [PMID: 35032803 DOI: 10.1016/j.foodchem.2022.132061] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 01/03/2022] [Accepted: 01/03/2022] [Indexed: 12/17/2022]
Abstract
Whole peptide-displayed phage particles are promising alternatives to antibodies in sensor development; however, greater control and functionalization of these particles are required. In this study, we aimed to identify and create highly sensitive and selective phage-based electrochemical biosensors for detecting ovomucoid, a known food allergen. Phage display was performed using two different phage libraries (cyclic and linear form of peptides), which displayed affinity peptides capable of binding specifically to ovomucoid. Throughout the biopanning, two phage clones that displayed both peptides (CTDKASSSC and WWQPYSSAPRWL) were selected. After the characterization of their binding affinities, both whole phage particles were covalently attached to a gold electrode using crosslinking chemistry (MUA-EDC/NHS and Sulfo-LC/SPDP); the developed phage sensor was characterized using cyclic voltammetry (CV), square wave voltammetry (SWV), and electrochemical impedance spectroscopy (EIS). The cyclic peptide-displayed phage sensor modified using EDC/NHS chemistry exhibited significantly better binding affinity (Kd = 2.36 ± 0.44 μg/mL) and limit of detection (LOD, 0.12 μg/mL) for ovomucoid than the linear phage sensor, resulting in good reproducibility and recovery, even in an actual egg and white wine samples. This approach may provide an alternative and more efficient way of sensing food allergens with desirable sensitivity, selectivity, and feasibility in food diagnostic applications.
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Affiliation(s)
- Jae Hwan Shin
- Basic Research Laboratory, Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Tae Jung Park
- Department of Chemistry, Institute of Interdisciplinary Convergence Research, Research Institute of Chem-Bio Diagnostic Technology, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Moon Seop Hyun
- National NanoFab Center (NNFC), 291 Daehangno, Daejeon 34141, Republic of Korea
| | - Jong Pil Park
- Basic Research Laboratory, Department of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea.
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5
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OHTA S, SHIBA S, KAMATA T, KATO D, YAJIMA T, NIWA O. Structure and Electrochemical Properties of Nitrogen Containing Nanocarbon Films and Their Electroanalytical Application. BUNSEKI KAGAKU 2021. [DOI: 10.2116/bunsekikagaku.70.511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | - Shunsuke SHIBA
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University
| | - Tomoyuki KAMATA
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology
| | - Dai KATO
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology
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6
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Diksy Y, Rahmawati I, Jiwanti PK, Ivandini TA. Nano-Cu Modified Cu and Nano-Cu Modified Graphite Electrodes for Chemical Oxygen Demand Sensors. ANAL SCI 2020; 36:1323-1330. [PMID: 32536621 DOI: 10.2116/analsci.20p069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Nano-Cu modified Cu (nano-Cu/Cu) and nano-Cu modified graphite (nano-Cu/C) electrodes were prepared by depositing a thin layer of copper nanoparticles on a Cu wire or graphite electrode. Chronoamperometric and cyclic voltammetry techniques were applied to deposit the nanoparticles. The effects of Cu2+ concentration, deposition time, number of scan cycles, and scan rate were studied to determine the optimum conditions of the experiment. The applications of both electrodes in the COD analysis were performed using glucose and glycine as the models. The voltammetry of a mixture solution of glucose (mg/L) and glycine (mg/L) in 0.075 M NaOH solution showed an oxidation peak at +0.68 V vs. Ag/AgCl. Good stability of this peak current was shown with relative standard deviations lower than 3% for 10 measurements. Amperometric determination of COD at this potential showed excellent linearities at both nano-Cu/Cu and nano-Cu/C electrodes (R2 = 0.997) as well as good precision and accuracy with estimated detection limits of around ∼9 mgO/L for both the developed electrodes. Validation using the conventional COD measurements showed that the measurements achieved the average values of 92.58 and 87.86%, respectively, for nano-Cu/Cu and nano-Cu/C electrodes. Furthermore, comparison with the theoretical COD value achieved 94.90 and 89.87%, respectively, for nano-Cu/Cu and nano-Cu/C electrodes. The results indicated that both electrodes are suitable for practical application in COD determination.
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Affiliation(s)
- Yuris Diksy
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Kampus UI Depok.,AKA Bogor Polytechnic
| | - Isnaini Rahmawati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Kampus UI Depok
| | - Prastika K Jiwanti
- Nanotechnology Engineering, School of Advanced Technology and Multidisciplinary, Airlangga University
| | - Tribidasari A Ivandini
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Kampus UI Depok
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7
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Alves NA, Olean-Oliveira A, Cardoso CX, Teixeira MFS. Photochemiresistor Sensor Development Based on a Bismuth Vanadate Type Semiconductor for Determination of Chemical Oxygen Demand. ACS APPLIED MATERIALS & INTERFACES 2020; 12:18723-18729. [PMID: 32239904 DOI: 10.1021/acsami.0c04259] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The present paper describes the development of a novel photochemiresistor sensor for the determination of chemical oxygen demand (COD). A chemiresistive device was produced by a thin film of the monoclinic phase of bismuth vanadate deposited on an FTO glass surface. The resistive properties of the photosensor were carried out by electrochemical impedance spectroscopy (EIS). The electrical resistance of the platform was dependent on the presence of organic material in aqueous solution and the incidence of light. The decrease in resistance can be explained by considering that by increasing the amount of organic material, the amount of charge transferred to BiVO4 increases, as does the amount of the photogenerated conduction band on the film. This behavior is not observed when carrying out the same measurements in the absence of light. Under the optimal experimental conditions, the linear response of the chemiresistor sensor is between 0.20 and 19.9 mg L-1 COD at a fixed AC frequency of 0.1 Hz. There is a good correlation between the charge transfer resistance and COD concentration in the electrolyte solution. Quantification of COD in waste and lake waters was successfully performed using the novel photochemiresistor sensor. The results achieved in the analysis with the sensor are in accordance with the conventional method.
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Affiliation(s)
- Nayara A Alves
- Department of Chemistry and Biochemistry, School of Science and Technology, Sao Paulo State University (UNESP), Rua Roberto Simonsen, 305 CEP Presidente Prudente, São Paulo 19060-900, Brazil
| | - André Olean-Oliveira
- Department of Chemistry and Biochemistry, School of Science and Technology, Sao Paulo State University (UNESP), Rua Roberto Simonsen, 305 CEP Presidente Prudente, São Paulo 19060-900, Brazil
| | - Celso X Cardoso
- Department of Physics, School of Science and Technology, São Paulo State University (UNESP), Presidente Prudente, São Paulo 19060-900, Brazil
| | - Marcos F S Teixeira
- Department of Chemistry and Biochemistry, School of Science and Technology, Sao Paulo State University (UNESP), Rua Roberto Simonsen, 305 CEP Presidente Prudente, São Paulo 19060-900, Brazil
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8
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Lourencao BC, Brocenschi RF, Medeiros RA, Fatibello‐Filho O, Rocha‐Filho RC. Analytical Applications of Electrochemically Pretreated Boron‐Doped Diamond Electrodes. ChemElectroChem 2020. [DOI: 10.1002/celc.202000050] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bruna C. Lourencao
- Departamento de Química Universidade Federal de São Carlos (UFSCar) C.P. 676 13560-970 São Carlos – SP Brazil
| | - Ricardo F. Brocenschi
- Centro de Estudos do Mar Universidade Federal do Paraná (UFPR) C.P. 61 83255-976 Pontal do Paraná – PR Brazil
| | - Roberta A. Medeiros
- Departamento de Química Universidade Estadual de Londrina (UEL) C.P. 10.011 86057-970 Londrina – PR Brazil
| | - Orlando Fatibello‐Filho
- Departamento de Química Universidade Federal de São Carlos (UFSCar) C.P. 676 13560-970 São Carlos – SP Brazil
| | - Romeu C. Rocha‐Filho
- Departamento de Química Universidade Federal de São Carlos (UFSCar) C.P. 676 13560-970 São Carlos – SP Brazil
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9
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Electrochemical determination of chemical oxygen demand on functionalized pseudo-graphite electrode. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113448] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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A Self-Supported CuO/Cu Nanowire Electrode as Highly Efficient Sensor for COD Measurement. Molecules 2019; 24:molecules24173132. [PMID: 31466335 PMCID: PMC6749378 DOI: 10.3390/molecules24173132] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 08/26/2019] [Accepted: 08/28/2019] [Indexed: 11/20/2022] Open
Abstract
A self-supported CuO/Cu nanowire electrode (CuO/CuNWE), which was prepared by annealing Cu nanowires to form a porous Cu nanowire electrode (CuNWE) and then anodizing the as-prepared CuNWE in alkaline medium to generate Cu(OH)2 nanowires followed by calcination, was employed for chemical oxygen demand (COD) determination using cyclic voltammetry (CV). The structure and electrochemical behavior of the CuO/CuNWE were investigated by scanning electron microscopy, X-ray diffraction, and CV. The results indicated that the as-synthesized CuO/CuNWE, in which CuO nanowires with a length of several micrometers and a diameter of 100 to 300 nm could be found, was stable in alkaline medium and more electrocatalytically active for oxidizing a wide range of organic compounds in comparison with the CuNWE. Under optimized alkaline concentration and scan rate, the CuO/CuNWE exhibited a good performance for COD measurement, with a linear range of 5 to 1153 mg L−1, a sensitivity of 2.46× 10−2 mA /(mg L−1), and a detection limit of about 2.3 mg L−1. In addition, an excellent correlation was observed in COD values obtained by our method and the classic dichromate method (r = 0.9995, p < 0.01, n = 11). Finally, our method was successfully used to measure the COD values in real water samples, showing great potential for practical application in water pollution control.
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11
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Direct determination of chemical oxygen demand by anodic oxidative degradation of organics at a composite 3-D electrode. J Solid State Electrochem 2019. [DOI: 10.1007/s10008-019-04250-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Boosting and tuning the visible photocatalytic degradation performances towards reactive blue 21 via dyes@MOF composites. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2018.10.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Ivandini TA, Einaga Y. Polycrystalline boron-doped diamond electrodes for electrocatalytic and electrosynthetic applications. Chem Commun (Camb) 2018; 53:1338-1347. [PMID: 28008432 DOI: 10.1039/c6cc08681k] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Boron-doped diamond (BDD) electrodes are recognized as being superior to other electrode materials due to their outstanding chemical and dimensional stability, their exceptionally low background current, the extremely wide potential window for water electrolysis that they have, and their excellent biocompatibility. However, whereas these properties have been utilized in the rapid development of electroanalytical applications, very few studies have been done in relation to their applications in electrocatalysis or electrosynthesis. In this report, following on from reports of the electrosynthesis of various products through anodic and cathodic reactions using BDD electrodes, the potential use of these electrodes in electrosynthesis is discussed.
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Affiliation(s)
- Tribidasari A Ivandini
- Department of Chemistry, Faculty of Mathematics and Sciences, Universitas Indonesia, Kampus UI Depok, Jakarta 16-4424, Indonesia
| | - Yasuaki Einaga
- Department of Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi 3-14-1, Yokohama 223-8522, Japan. and JST-ACCEL, Hiyoshi 3-14-1, Yokohama 223-8522, Japan
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14
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Li J, Luo G, He L, Xu J, Lyu J. Analytical Approaches for Determining Chemical Oxygen Demand in Water Bodies: A Review. Crit Rev Anal Chem 2017; 48:47-65. [DOI: 10.1080/10408347.2017.1370670] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ji Li
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, China
| | - Guobing Luo
- Wuxi City Water Supply and Drainage Monitoring Station, Wuxi, China
| | - LingJun He
- Department of Housing and Urban Rural Development of Jiangsu Province, Nanjing, China
| | - Jing Xu
- Wuxi City Water Supply and Drainage Monitoring Station, Wuxi, China
| | - Jinze Lyu
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, China
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15
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Nantaphol S, Channon RB, Kondo T, Siangproh W, Chailapakul O, Henry CS. Boron Doped Diamond Paste Electrodes for Microfluidic Paper-Based Analytical Devices. Anal Chem 2017; 89:4100-4107. [DOI: 10.1021/acs.analchem.6b05042] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Siriwan Nantaphol
- Department
of Chemistry, Faculty of Science, Chulalongkorn University, Patumwan, Bangkok 10330, Thailand
| | - Robert B. Channon
- Department
of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Takeshi Kondo
- Department
of Pure and Applied Chemistry, Faculty of Science and
Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Weena Siangproh
- Department
of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit
23, Wattana, Bangkok 10110, Thailand
| | - Orawon Chailapakul
- Department
of Chemistry, Faculty of Science, Chulalongkorn University, Patumwan, Bangkok 10330, Thailand
| | - Charles S. Henry
- Department
of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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16
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Kondo T, Hoshino M, Watanabe T, Aikawa T, Yuasa M, Einaga Y. Development of Electrochemical Oxygen Demand Measurement Cells Using a Diamond Electrode. ANAL SCI 2016; 32:1381-1384. [PMID: 27941273 DOI: 10.2116/analsci.32.1381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Electrolytic cells for electrochemical oxygen demand (ECOD) measurements based on total electrolytic decomposition at a boron-doped diamond (BDD) electrode were developed for rapid measurement of organic pollutants at low concentrations. Using improved electrolytic cells designed for efficient mass transfer, the ECOD for 10 μM potassium hydrogen phthalate (theoretical ECOD: 2.3 mg-O2 L-1) was determined in a relatively short electrolysis time. Thus, ECOD measurements using these cells would be useful for estimating organic water pollution in industrial waste and lake water.
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Affiliation(s)
- Takeshi Kondo
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science
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17
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Highly sensitive detection of influenza virus by boron-doped diamond electrode terminated with sialic acid-mimic peptide. Proc Natl Acad Sci U S A 2016; 113:8981-4. [PMID: 27457924 DOI: 10.1073/pnas.1603609113] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The progression of influenza varies according to age and the presence of an underlying disease; appropriate treatment is therefore required to prevent severe disease. Anti-influenza therapy, such as with neuraminidase inhibitors, is effective, but diagnosis at an early phase of infection before viral propagation is critical. Here, we show that several dozen plaque-forming units (pfu) of influenza virus (IFV) can be detected using a boron-doped diamond (BDD) electrode terminated with a sialic acid-mimic peptide. The peptide was used instead of the sialyloligosaccharide receptor, which is the common receptor of influenza A and B viruses required during the early phase of infection, to capture IFV particles. The peptide, which was previously identified by phage-display technology, was immobilized by click chemistry on the BDD electrode, which has excellent electrochemical characteristics such as low background current and weak adsorption of biomolecules. Electrochemical impedance spectroscopy revealed that H1N1 and H3N2 IFVs were detectable in the range of 20-500 pfu by using the peptide-terminated BDD electrode. Our results demonstrate that the BDD device integrated with the receptor-mimic peptide has high sensitivity for detection of a low number of virus particles in the early phase of infection.
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18
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Gao F, Nebel CE. Electrically Conductive Diamond Membrane for Electrochemical Separation Processes. ACS APPLIED MATERIALS & INTERFACES 2016; 8:18640-18646. [PMID: 27396448 DOI: 10.1021/acsami.6b07024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Electrochemically switchable selective membranes play an important role in selective filtration processes such as water desalination, industrial waste treatment, and hemodialysis. Currently, membranes for these purposes need to be optimized in terms of electrical conductivity and stability against fouling and corrosion. In this paper, we report the fabrication of boron-doped diamond membrane by template diamond growth on quartz fiber filters. The morphology and quality of the diamond coating are characterized via SEM and Raman spectroscopy. The membrane is heavily boron doped (>10(21) cm(-3)) with >3 V potential window in aqueous electrolyte. By applying a membrane potential against the electrolyte, the redox active species can be removed via flow-through electrolysis. Compared to planar diamond electrodes, the ∼250 times surface enlargement provided by such a membrane ensures an effective removal of target chemicals from the input electrolyte. The high stability of diamond enables the membrane to not only work at high membrane bias but also to be self-cleaning via in situ electrochemical oxidation. Therefore, we believe that the diamond membrane presented in this paper will provide a solution to future selective filtration applications especially in extreme conditions.
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Affiliation(s)
- Fang Gao
- Fraunhofer Institute for Applied Solid State Physics (IAF) , Tullastraße 72, Freiburg 79108, Germany
| | - Christoph E Nebel
- Fraunhofer Institute for Applied Solid State Physics (IAF) , Tullastraße 72, Freiburg 79108, Germany
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19
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Brocenschi RF, Hammer P, Deslouis C, Rocha-Filho RC. Assessments of the Effect of Increasingly Severe Cathodic Pretreatments on the Electrochemical Activity of Polycrystalline Boron-Doped Diamond Electrodes. Anal Chem 2016; 88:5363-8. [DOI: 10.1021/acs.analchem.6b00676] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Ricardo F. Brocenschi
- Departamento
de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos, São Paulo Brazil
| | - Peter Hammer
- Instituto
de Química, Universidade Estadual de São Paulo, 14800-060 Araraquara, São Paulo Brazil
| | - Claude Deslouis
- Laboratoire Interfaces et Systèmes
Electrochimiques (LISE), UMR8235, CNRS, Université Pierre et Marie Curie, 4 Place Jussieu, 75005 Paris, France
| | - Romeu C. Rocha-Filho
- Departamento
de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos, São Paulo Brazil
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20
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Performance improvement in chemical oxygen demand determination using carbon fiber felt/CeO2-β-PbO2 electrode deposited by cyclic voltammetry method. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3207-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Development of a Three-Dimensional Structured Carbon Fiber Felt/β-PbO2 Electrode and Its Application in Chemical Oxygen Demand Determination. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.07.126] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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KOTANI A, NAGAMI K, MINO C, SUGAWARA Y, TAKAHASHI K, KUSU F, HAKAMATA H. Determination of Nobiletin in Rat Plasma after Ingestion of Citrus depressa Juice by Capillary Liquid Chromatography with Electrochemical Detection Using Boron-doped Diamond Electrode. ELECTROCHEMISTRY 2015. [DOI: 10.5796/electrochemistry.83.363] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Akira KOTANI
- Department of Analytical Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Kota NAGAMI
- Department of Analytical Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Chika MINO
- Department of Analytical Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Yasuhito SUGAWARA
- Department of Analytical Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Kouji TAKAHASHI
- Department of Analytical Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Fumiyo KUSU
- Department of Analytical Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
| | - Hideki HAKAMATA
- Department of Analytical Chemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
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