1
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Augusto KKL, Crapnell RD, Bernalte E, Zighed S, Ehamparanathan A, Pimlott JL, Andrews HG, Whittingham MJ, Rowley-Neale SJ, Fatibello-Filho O, Banks CE. Optimised graphite/carbon black loading of recycled PLA for the production of low-cost conductive filament and its application to the detection of β-estradiol in environmental samples. Mikrochim Acta 2024; 191:375. [PMID: 38849611 PMCID: PMC11161437 DOI: 10.1007/s00604-024-06445-7] [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: 04/01/2024] [Accepted: 05/22/2024] [Indexed: 06/09/2024]
Abstract
The production, optimisation, physicochemical, and electroanalytical characterisation of a low-cost electrically conductive additive manufacturing filament made with recycled poly(lactic acid) (rPLA), castor oil, carbon black, and graphite (CB-G/PLA) is reported. Through optimising the carbon black and graphite loading, the best ratio for conductivity, low material cost, and printability was found to be 60% carbon black to 40% graphite. The maximum composition within the rPLA with 10 wt% castor oil was found to be an overall nanocarbon loading of 35 wt% which produced a price of less than £0.01 per electrode whilst still offering excellent low-temperature flexibility and reproducible printing. The additive manufactured electrodes produced from this filament offered excellent electrochemical performance, with a heterogeneous electron (charge) transfer rate constant, k0 calculated to be (2.6 ± 0.1) × 10-3 cm s-1 compared to (0.46 ± 0.03) × 10-3 cm s-1 for the commercial PLA benchmark. The additive manufactured electrodes were applied to the determination of β-estradiol, achieving a sensitivity of 400 nA µM-1, a limit of quantification of 70 nM, and a limit of detection of 21 nM, which compared excellently to other reports in the literature. The system was then applied to the detection of ß-estradiol within four real water samples, including tap, bottled, river, and lake water, where recoveries between 95 and 109% were obtained. Due to the ability to create high-performance filament at a low material cost (£0.06 per gram) and through the use of more sustainable materials such as recycled polymers, bio-based plasticisers, and naturally occurring graphite, additive manufacturing will have a permanent place within the electroanalysis arsenal in the future.
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Affiliation(s)
- Karen K L Augusto
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, Great Britain
- Laboratório de Analítica, Bioanalítica, Biosensores, Electroanalítica e Sensores, Departamento de Química, Universidade Federal de São Carlos (UFSCar), Sao Carlos, CP 676, 13560-970, SP, Brazil
| | - Robert D Crapnell
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, Great Britain
| | - Elena Bernalte
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, Great Britain
| | - Sabri Zighed
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, Great Britain
- Department of Physical Measurements, Sorbonne Paris North University, Place du 8 Mai 1945, Saint-Denis, 93200, France
| | - Anbuchselvan Ehamparanathan
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, Great Britain
- Department of Physical Measurements, Sorbonne Paris North University, Place du 8 Mai 1945, Saint-Denis, 93200, France
| | - Jessica L Pimlott
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, Great Britain
| | - Hayley G Andrews
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, Great Britain
| | - Matthew J Whittingham
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, Great Britain
| | - Samuel J Rowley-Neale
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, Great Britain
| | - Orlando Fatibello-Filho
- Laboratório de Analítica, Bioanalítica, Biosensores, Electroanalítica e Sensores, Departamento de Química, Universidade Federal de São Carlos (UFSCar), Sao Carlos, CP 676, 13560-970, SP, Brazil
| | - Craig E Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, Great Britain.
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2
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Roveda LM, Ottoni VF, de Carvalho CT, Rodrigues R, Corazza MZ, Trindade MAG. Merging 3D-printing technology and disposable materials for electrochemical purposes: A sustainable alternative to ensure greener electroanalysis. Talanta 2024; 272:125814. [PMID: 38428135 DOI: 10.1016/j.talanta.2024.125814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/15/2024] [Accepted: 02/18/2024] [Indexed: 03/03/2024]
Abstract
3D-printing technology has revolutionized electrochemical applications by enabling rapid prototyping of various devices with high precision, even in highly complex structures. However, a significant challenge remains in developing less costly and more sustainable analytical approaches and methods aimed at mitigating the negative environmental impacts of chemical analysis procedures. In this study, we propose a solution to these challenges by creating a simple and versatile electrochemical system that combines 3D-printing technology with recyclable disposable materials, such as graphite from an exhausted battery and a stainless-steel screw. Our results demonstrate a novel strategy for developing electrodes and other laboratory-made devices that align with the principles of sustainability and green chemistry. Furthermore, we provide evidence of the effectiveness of the proposed system in an analytical application involving the simultaneous determination of tert-butylhydroquinone, acetaminophen, and levofloxacin using the voltammetric technique in lake and groundwater samples. The results indicate sufficient accuracy, with recovery values ranging from 91 to 110%. Additionally, we utilized the Analytical GREEnness calculator as a metric system to evaluate the environmental friendliness of the proposed electroanalytical protocol. The final score confirms a favorable level of sustainability, reaffirming the eco-friendly nature of our approach.
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Affiliation(s)
- Liriana Mara Roveda
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12, Dourados, MS, CEP, 79804-970, Brazil
| | - Vitor Ferreira Ottoni
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12, Dourados, MS, CEP, 79804-970, Brazil
| | - Cláudio Teodoro de Carvalho
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12, Dourados, MS, CEP, 79804-970, Brazil
| | - Raphael Rodrigues
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12, Dourados, MS, CEP, 79804-970, Brazil
| | - Marcela Zanetti Corazza
- Universidade Estadual de Londrina, Departamento de Química, Londrina, PR, CEP, 86057-970, Brazil.
| | - Magno Aparecido Gonçalves Trindade
- Universidade Federal da Grande Dourados, Rodovia Dourados-Itahum, km 12, Dourados, MS, CEP, 79804-970, Brazil; Unesp, National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Institute of Chemistry, P.O. Box 355, Araraquara, SP, CEP, 14800-900, Brazil.
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3
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Crapnell RD, Banks CE. Electroanalysis overview: additive manufactured biosensors using fused filament fabrication. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2625-2634. [PMID: 38639065 DOI: 10.1039/d4ay00278d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Additive manufacturing (3D-printing), in particular fused filament fabrication, presents a potential paradigm shift in the way electrochemical based biosensing platforms are produced, giving rise to a new generation of personalized and on-demand biosensors. The use of additive manufactured biosensors is unparalleled giving rise to unique customization, facile miniaturization, ease of use, economical but yet, still providing sensitive and selective approaches towards the target analyte. In this mini review, we focus on the use of fused filament fabrication additive manufacturing technology alongside different biosensing approaches that exclusively use antibodies, enzymes and associated biosensing materials (mediators) providing an up-to-date overview with future considerations to expand the additive manufacturing biosensors field.
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Affiliation(s)
- Robert D Crapnell
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK.
| | - Craig E Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK.
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4
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Wong TI, Ng C, Lin S, Chen Z, Zhou X. Adaptive Fabrication of Electrochemical Chips with a Paste-Dispensing 3D Printer. SENSORS (BASEL, SWITZERLAND) 2024; 24:2844. [PMID: 38732950 PMCID: PMC11086071 DOI: 10.3390/s24092844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 04/25/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024]
Abstract
Electrochemical (EC) detection is a powerful tool supporting simple, low-cost, and rapid analysis. Although screen printing is commonly used to mass fabricate disposable EC chips, its mask is relatively expensive. In this research, we demonstrated a method for fabricating three-electrode EC chips using 3D printing of relatively high-viscosity paste. The electrodes consisted of two layers, with carbon paste printed over silver/silver chloride paste, and the printed EC chips were baked at 70 °C for 1 h. Engineering challenges such as bulging of the tubing, clogging of the nozzle, dripping, and local accumulation of paste were solved by material selection for the tube and nozzle, and process optimization in 3D printing. The EC chips demonstrated good reversibility in redox reactions through cyclic voltammetry tests, and reliably detected heavy metal ions Pb(II) and Cd(II) in solutions using differential pulse anodic stripping voltammetry measurements. The results indicate that by optimizing the 3D printing of paste, EC chips can be obtained by maskless and flexible 3D printing techniques in lieu of screen printing.
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Affiliation(s)
- Ten It Wong
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-03, Innovis, Singapore 138634, Singapore;
| | - Candy Ng
- School of Materials Science & Engineering, Nanyang Technological University, Block N4.1, Nanyang Avenue, Singapore 639798, Singapore; (C.N.); (Z.C.)
| | - Shengxuan Lin
- Residues and Resource Reclamation Centre (R3C), Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Clean Tech One, Singapore 637141, Singapore;
| | - Zhong Chen
- School of Materials Science & Engineering, Nanyang Technological University, Block N4.1, Nanyang Avenue, Singapore 639798, Singapore; (C.N.); (Z.C.)
| | - Xiaodong Zhou
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, #08-03, Innovis, Singapore 138634, Singapore;
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5
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Tibaduiza D, Anaya M, Gómez J, Sarmiento J, Perez M, Lara C, Ruiz J, Osorio N, Rodriguez K, Hernandez I, Sanchez C. Electronic Tongues and Noses: A General Overview. BIOSENSORS 2024; 14:190. [PMID: 38667183 PMCID: PMC11048215 DOI: 10.3390/bios14040190] [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: 03/07/2024] [Revised: 04/06/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024]
Abstract
As technology advances, electronic tongues and noses are becoming increasingly important in various industries. These devices can accurately detect and identify different substances and gases based on their chemical composition. This can be incredibly useful in fields such as environmental monitoring and industrial food applications, where the quality and safety of products or ecosystems should be ensured through a precise analysis. Traditionally, this task is performed by an expert panel or by using laboratory tests but sometimes becomes a bottleneck because of time and other human factors that can be solved with technologies such as the provided by electronic tongue and nose devices. Additionally, these devices can be used in medical diagnosis, quality monitoring, and even in the automotive industry to detect gas leaks. The possibilities are endless, and as these technologies continue to improve, they will undoubtedly play an increasingly important role in improving our lives and ensuring our safety. Because of the multiple applications and developments in this field in the last years, this work will present an overview of the electronic tongues and noses from the point of view of the approaches developed and the methodologies used in the data analysis and steps to this aim. In the same manner, this work shows some of the applications that can be found in the use of these devices and ends with some conclusions about the current state of these technologies.
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Affiliation(s)
- Diego Tibaduiza
- Departamento de Ingeniería Eléctrica y Electrónica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (M.A.); (J.G.); (J.S.); (M.P.); (C.L.); (J.R.); (N.O.); (I.H.); (C.S.)
| | - Maribel Anaya
- Departamento de Ingeniería Eléctrica y Electrónica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (M.A.); (J.G.); (J.S.); (M.P.); (C.L.); (J.R.); (N.O.); (I.H.); (C.S.)
| | - Johan Gómez
- Departamento de Ingeniería Eléctrica y Electrónica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (M.A.); (J.G.); (J.S.); (M.P.); (C.L.); (J.R.); (N.O.); (I.H.); (C.S.)
| | - Juan Sarmiento
- Departamento de Ingeniería Eléctrica y Electrónica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (M.A.); (J.G.); (J.S.); (M.P.); (C.L.); (J.R.); (N.O.); (I.H.); (C.S.)
| | - Maria Perez
- Departamento de Ingeniería Eléctrica y Electrónica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (M.A.); (J.G.); (J.S.); (M.P.); (C.L.); (J.R.); (N.O.); (I.H.); (C.S.)
| | - Cristhian Lara
- Departamento de Ingeniería Eléctrica y Electrónica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (M.A.); (J.G.); (J.S.); (M.P.); (C.L.); (J.R.); (N.O.); (I.H.); (C.S.)
| | - Johan Ruiz
- Departamento de Ingeniería Eléctrica y Electrónica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (M.A.); (J.G.); (J.S.); (M.P.); (C.L.); (J.R.); (N.O.); (I.H.); (C.S.)
| | - Nicolas Osorio
- Departamento de Ingeniería Eléctrica y Electrónica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (M.A.); (J.G.); (J.S.); (M.P.); (C.L.); (J.R.); (N.O.); (I.H.); (C.S.)
| | - Katerin Rodriguez
- Departamento de Ingeniería Química y Ambiental, Universidad Nacional de Colombia, Bogotá 111321, Colombia;
| | - Isaac Hernandez
- Departamento de Ingeniería Eléctrica y Electrónica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (M.A.); (J.G.); (J.S.); (M.P.); (C.L.); (J.R.); (N.O.); (I.H.); (C.S.)
| | - Carlos Sanchez
- Departamento de Ingeniería Eléctrica y Electrónica, Universidad Nacional de Colombia, Bogotá 111321, Colombia; (M.A.); (J.G.); (J.S.); (M.P.); (C.L.); (J.R.); (N.O.); (I.H.); (C.S.)
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6
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Crapnell RD, Bernalte E, Sigley E, Banks CE. Recycled PETg embedded with graphene, multi-walled carbon nanotubes and carbon black for high-performance conductive additive manufacturing feedstock. RSC Adv 2024; 14:8108-8115. [PMID: 38464694 PMCID: PMC10921296 DOI: 10.1039/d3ra08524d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 02/22/2024] [Indexed: 03/12/2024] Open
Abstract
The first report of conductive recycled polyethylene terephthalate glycol (rPETg) for additive manufacturing and electrochemical applications is reported herein. Graphene nanoplatelets (GNP), multi-walled carbon nanotubes (MWCNT) and carbon black (CB) were embedded within a recycled feedstock to produce a filament with lower resistance than commercially available conductive polylactic acid (PLA). In addition to electrical conductivity, the rPETg was able to hold >10 wt% more conductive filler without the use of a plasticiser, showed enhanced temperature stability, had a higher modulus, improved chemical resistance, lowered levels of solution ingress, and could be sterilised in ethanol. Using a mix of carbon materials CB/MWCNT/GNP (25/2.5/2.5 wt%) the electrochemical performance of the rPETg filament was significantly enhanced, providing a heterogenous electrochemical rate constant, k0, equating to 0.88 (±0.01) × 10-3 cm s-1 compared to 0.46 (±0.02) × 10-3 cm s-1 for commercial conductive PLA. This work presents a paradigm shift within the use of additive manufacturing and electrochemistry, allowing the production of electrodes with enhanced electrical, chemical and mechanical properties, whilst improving the sustainability of the production through the use of recycled feedstock.
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Affiliation(s)
- Robert D Crapnell
- Faculty of Science and Engineering, Manchester Metropolitan University Chester Street M1 5GD UK +44(0)1612471196
| | - Elena Bernalte
- Faculty of Science and Engineering, Manchester Metropolitan University Chester Street M1 5GD UK +44(0)1612471196
| | - Evelyn Sigley
- Faculty of Science and Engineering, Manchester Metropolitan University Chester Street M1 5GD UK +44(0)1612471196
| | - Craig E Banks
- Faculty of Science and Engineering, Manchester Metropolitan University Chester Street M1 5GD UK +44(0)1612471196
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7
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Crapnell RD, Arantes IVS, Camargo JR, Bernalte E, Whittingham MJ, Janegitz BC, Paixão TRLC, Banks CE. Multi-walled carbon nanotubes/carbon black/rPLA for high-performance conductive additive manufacturing filament and the simultaneous detection of acetaminophen and phenylephrine. Mikrochim Acta 2024; 191:96. [PMID: 38225436 PMCID: PMC10789692 DOI: 10.1007/s00604-023-06175-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 12/26/2023] [Indexed: 01/17/2024]
Abstract
The combination of multi-walled carbon nanotubes (MWCNT) and carbon black (CB) is presented to produce a high-performance electrically conductive recycled additive manufacturing filament. The filament and subsequent additively manufactured electrodes were characterised by TGA, XPS, Raman, and SEM and showed excellent low-temperature flexibility. The MWCNT/CB filament exhibited an improved electrochemical performance compared to an identical in-house produced bespoke filament using only CB. A heterogeneous electrochemical rate constant, [Formula: see text] of 1.71 (± 0.19) × 10-3 cm s-1 was obtained, showing an almost six times improvement over the commonly used commercial conductive CB/PLA. The filament was successfully tested for the simultaneous determination of acetaminophen and phenylephrine, producing linear ranges of 5-60 and 5-200 μM, sensitivities of 0.05 μA μM-1 and 0.14 μA μM-1, and limits of detection of 0.04 μM and 0.38 μM, respectively. A print-at-home device is presented where a removable lid comprised of rPLA can be placed onto a drinking vessel and the working, counter, and reference components made from our bespoke MWCNT/CB filament. The print-at-home device was successfully used to determine both compounds within real pharmaceutical products, with recoveries between 87 and 120% over a range of three real samples. This work paves the way for fabricating new highly conductive filaments using a combination of carbon materials with different morphologies and physicochemical properties and their application to produce additively manufactured electrodes with greatly improved electrochemical performance.
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Affiliation(s)
- Robert D Crapnell
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - Iana V S Arantes
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
- Departmento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Jéssica R Camargo
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
- Laboratory of Sensors, Nanomedicine and Nanostructured Materials, Federal University of São Carlos, Araras, 13600-970, Brazil
| | - Elena Bernalte
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - Matthew J Whittingham
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - Bruno C Janegitz
- Laboratory of Sensors, Nanomedicine and Nanostructured Materials, Federal University of São Carlos, Araras, 13600-970, Brazil
| | - Thiago R L C Paixão
- Departmento de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP, 05508-000, Brazil
| | - Craig E Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK.
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8
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Ramos DLO, de Faria LV, Alves DAC, Muñoz RAA, Dos Santos WTP, Richter EM. Electrochemical platform produced by 3D printing for analysis of small volumes using different electrode materials. Talanta 2023; 265:124832. [PMID: 37354624 DOI: 10.1016/j.talanta.2023.124832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/13/2023] [Accepted: 06/16/2023] [Indexed: 06/26/2023]
Abstract
Fused deposition modeling (FDM) 3D printing is a promising additive manufacturing technique to produce low-cost disposable electrochemical devices. However, the print of devices like well-known screen-printed electrodes (all electrodes on the same device) is difficult using the available technology (few materials available for production of working electrodes). In this paper we present a procedure to produce disposable and robust electrochemical devices by FDM 3D printing that allows reproducible analysis of small volumes (50-2000 μL). The device consists of just two printed parts that allow easy coupling of different conductive materials for using as disposable or non-disposable working electrodes with reproducible geometric area. Printed counter and pseudo-reference electrodes can also be easily fitted into the microcell. Moreover, conventional counter (platinum wire) and mini reference electrodes can also be used. As a proof of concept, paracetamol, cocaine and uric acid were used as model analytes using different materials as working electrodes. Linear calibration curves (r > 0.99) with similar slopes (0.29 ± 0.01 μA μmol L-1; RSD = 3.4%) were obtained by square wave voltammetry (SWV) using a complete printed system and different volumes of standard solutions of paracetamol (50, 100, and 200 μL). For uric acid, a linear range of 10-125 μmol L-1 (r > 0.99), was obtained using differential pulse voltammetry as the electrochemical technique and a disposable laser-induced graphene base as the working electrode. With the coupling of boron-doped diamond working electrode, screening tests were successfully performed in seized cocaine samples with selective detection of cocaine in the presence of its most common adulterants. The production cost per unit of a complete electrochemical system is around US 5.00. In large-scale production, only the working electrode needs to be replaced while the microcell and counter/pseudo reference electrodes do not need to be discarded.
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Affiliation(s)
- David L O Ramos
- Institute of Chemistry, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Lucas V de Faria
- Institute of Chemistry, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Diego A C Alves
- Faculty of Mechanical Engineering, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Rodrigo A A Muñoz
- Institute of Chemistry, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Wallans T P Dos Santos
- Department of Pharmacy, Federal University of the Jequitinhonha and Mucuri Valleys, 39100-000, Diamantina, Minas Gerais, Brazil
| | - Eduardo M Richter
- Institute of Chemistry, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil.
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9
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Arantes IV, Crapnell RD, Bernalte E, Whittingham MJ, Paixão TRLC, Banks CE. Mixed Graphite/Carbon Black Recycled PLA Conductive Additive Manufacturing Filament for the Electrochemical Detection of Oxalate. Anal Chem 2023; 95:15086-15093. [PMID: 37768700 PMCID: PMC10568530 DOI: 10.1021/acs.analchem.3c03193] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023]
Abstract
Mixing of graphite and carbon black (CB) alongside recycled poly(lactic acid) and castor oil to create an electrically conductive additive manufacturing filament without the use of solvents is reported herein. The additively manufactured electrodes (AMEs) were electrochemically benchmarked against a commercial conductive filament and a bespoke filament utilizing only CB. The graphite/CB produced a heterogeneous rate constant, k0, of 1.26 (±0.23) × 10-3 cm s-1 and resistance of only 155 ± 15 Ω, compared to 0.30 (±0.03) × 10-3 cm s-1 and 768 ± 96 Ω for the commercial AME. Including graphite within the filament reduced the cost of printing each AME from £0.09, with the CB-only filament, to £0.05. The additive manufacturing filament was successfully used to create an electroanalytical sensing platform for the detection of oxalate within a linear range of 10-500 μM, achieving a sensitivity of 0.0196 μA/μM, LOD of 5.7 μM and LOQ of 18.8 μM was obtained. Additionally, the cell was tested toward the detection of oxalate within a spiked synthetic urine sample, obtaining recoveries of 104%. This work highlights how, using mixed material composites, excellent electrochemical performance can be obtained at a reduced material cost, while also greatly improving the sustainability of the system.
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Affiliation(s)
- Iana V.
S. Arantes
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
- Departmento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| | - Robert D. Crapnell
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | - Elena Bernalte
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | - Matthew J. Whittingham
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | - Thiago R. L. C. Paixão
- Departmento
de Química Fundamental, Instituto de Química, Universidade de São Paulo, São Paulo, SP 05508-000, Brazil
| | - Craig E. Banks
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
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10
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Crapnell RD, Adarakatti PS, Banks CE. Electroanalytical overview: the sensing of carbendazim. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:4811-4826. [PMID: 37721714 DOI: 10.1039/d3ay01053h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
Carbendazim is a broad-spectrum systemic fungicide that is used to control various fungal diseases in agriculture, horticulture, and forestry. Carbendazim is also used in post-harvest applications to prevent fungal growth on fruits and vegetables during storage and transportation. Carbendazim is regulated in many countries and banned in others, thus, there is a need for the sensing of carbendazim to ensure that high levels are avoided which can result in potential health risks. One approach is the use of electroanalytical sensors which present a rapid, but highly selective and sensitive output, whilst being economical and providing portable sensing platforms to support on-site analysis. In this minireview, we report on the electroanalytical sensing of carbendazim overviewing recent advances, helping to elucidate the electrochemical mechanism and provide conclusions and future perspectives of this field.
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Affiliation(s)
- Robert D Crapnell
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK.
| | - Prashanth S Adarakatti
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK.
| | - Craig E Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK.
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11
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Watanabe EY, Gevaerd A, Caetano FR, Marcolino-Junior LH, Bergamini MF. An electrochemical microfluidic device for non-enzymatic cholesterol determination using a lab-made disposable electrode. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023. [PMID: 37469272 DOI: 10.1039/d3ay00654a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Cholesterol is an important steroid and hormone precursor, and its levels in the blood are associated with risk factors for cardiovascular diseases. In this work, a non-enzymatic methodology for cholesterol determination in serum samples is described. First, a working electrode was constructed using homemade ink and a plastic substrate by a simple dunking process. Next, the dunked electrode (DWE) was modified with nickel ions (Ni-DWE) and combined with a low-cost microfluidic platform, resulting in a thread-based electroanalytical device (μTED). The arrangement of μTED consists of two coupled electrodes (one reference in the inlet reservoir and an auxiliary electrode against the outlet reservoir) and a mobile support for facile working electrode exchange. After optimization of construction parameters, the system was applied for non-enzymatic determination of cholesterol under alkaline conditions using the redox pair Ni(II)/Ni(III) as a mediator. Under the best analytical conditions, a calibration curve was constructed with a linear dynamic range (LDR) from 0.25 to 25.0 μmol L-1, and the calculated limits of detection (LOD) and quantification (LOQ) were 0.074 and 0.24 μmol L-1, respectively. No effects of possible interferents on electrochemical response were found in the presence of ascorbic acid, uric acid, dopamine, cysteine, and glucose, suggesting that the proposed device can be used for the determination of cholesterol without significant matrix effects of human plasma. Finally, cholesterol analysis was carried out using spiked plasma samples, and good recovery values were achieved.
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Affiliation(s)
- Emily Yamagutti Watanabe
- Laboratório de Sensores Eletroquímicos (LabSensE) - Departamento de Química, Universidade Federal do Paraná (UFPR), Curitiba, CEP 81531-980, PR, Brazil.
| | - Ava Gevaerd
- Laboratório de Sensores Eletroquímicos (LabSensE) - Departamento de Química, Universidade Federal do Paraná (UFPR), Curitiba, CEP 81531-980, PR, Brazil.
- Hilab, Rua José Altair Possebom, 800, Curitiba, CEP 81270-185, PR, Brazil
| | - Fabio Roberto Caetano
- Laboratório de Sensores Eletroquímicos (LabSensE) - Departamento de Química, Universidade Federal do Paraná (UFPR), Curitiba, CEP 81531-980, PR, Brazil.
| | - Luiz Humberto Marcolino-Junior
- Laboratório de Sensores Eletroquímicos (LabSensE) - Departamento de Química, Universidade Federal do Paraná (UFPR), Curitiba, CEP 81531-980, PR, Brazil.
| | - Márcio Fernando Bergamini
- Laboratório de Sensores Eletroquímicos (LabSensE) - Departamento de Química, Universidade Federal do Paraná (UFPR), Curitiba, CEP 81531-980, PR, Brazil.
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12
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Matias TA, Ramos DLO, Faria LV, de Siervo A, Richter EM, Muñoz RAA. 3D-printed electrochemical cells with laser engraving: developing portable electroanalytical devices for forensic applications. Mikrochim Acta 2023; 190:297. [PMID: 37460848 DOI: 10.1007/s00604-023-05872-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/14/2023] [Indexed: 08/09/2023]
Abstract
A new electrochemical device fabricated by the combination of 3D printing manufacturing and laser-generated graphene sensors is presented. Cell and electrodes were 3D printed by the fused deposition modeling (FDM) technique employing acrylonitrile butadiene styrene filament (insulating material that composes the cell) and conductive filament (lab-made filament based on graphite dispersed into polylactic acid matrix) to obtain reference and auxiliary electrodes. Infrared-laser engraved graphene, also reported as laser-induced graphene (LIG), was produced by laser conversion of a polyimide substrate, which was assembled in the 3D-printed electrochemical cell that enables the analysis of low volumes (50-2000 μL). XPS analysis revealed the formation of nitrogen-doped graphene multilayers that resulted in excellent electrochemical sensing properties toward the detection of atropine (ATR), a substance that was found in beverages to facilitate sexual assault and other criminal acts. Linear range between 5 and 35 μmol L-1, detection limit of 1 μmol L-1, and adequate precision (RSD = 4.7%, n = 10) were achieved using differential-pulse voltammetry. The method was successfully applied to beverage samples with recovery values ranging from 80 to 105%. Interference studies in the presence of species commonly found in beverages confirmed satisfactory selectivity for ATR sensing. The devices proposed are useful portable analytical tools for on-site applications in the forensic scenario.
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Affiliation(s)
- Tiago A Matias
- Center for Research on Electroanalysis, Institute of Chemistry, Federal University of Uberlândia, Uberlândia, MG, 38408-100, Brazil.
| | - David L O Ramos
- Center for Research on Electroanalysis, Institute of Chemistry, Federal University of Uberlândia, Uberlândia, MG, 38408-100, Brazil
| | - Lucas V Faria
- Center for Research on Electroanalysis, Institute of Chemistry, Federal University of Uberlândia, Uberlândia, MG, 38408-100, Brazil
| | - Abner de Siervo
- Institute of Physics Gleb Wataghin, Applied Physics Department, State University of Campinas, Campinas, SP, 13083-859, Brazil
| | - Eduardo M Richter
- Center for Research on Electroanalysis, Institute of Chemistry, Federal University of Uberlândia, Uberlândia, MG, 38408-100, Brazil
| | - Rodrigo A A Muñoz
- Center for Research on Electroanalysis, Institute of Chemistry, Federal University of Uberlândia, Uberlândia, MG, 38408-100, Brazil.
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13
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Crapnell R, Sigley E, Williams RJ, Brine T, Garcia-Miranda Ferrari A, Kalinke C, Janegitz BC, Bonacin JA, Banks CE. Circular Economy Electrochemistry: Recycling Old Mixed Material Additively Manufactured Sensors into New Electroanalytical Sensing Platforms. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2023; 11:9183-9193. [PMID: 37351461 PMCID: PMC10284352 DOI: 10.1021/acssuschemeng.3c02052] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/24/2023] [Indexed: 06/24/2023]
Abstract
Recycling used mixed material additively manufactured electroanalytical sensors into new 3D-printing filaments (both conductive and non-conductive) for the production of new sensors is reported herein. Additively manufactured (3D-printed) sensing platforms were transformed into a non-conductive filament for fused filament fabrication through four different methodologies (granulation, ball-milling, solvent mixing, and thermal mixing) with thermal mixing producing the best quality filament, as evidenced by the improved dispersion of fillers throughout the composite. Utilizing this thermal mixing methodology, and without supplementation with the virgin polymer, the filament was able to be cycled twice before failure. This was then used to process old sensors into an electrically conductive filament through the addition of carbon black into the thermal mixing process. Both recycled filaments (conductive and non-conductive) were utilized to produce a new electroanalytical sensing platform, which was tested for the cell's original application of acetaminophen determination. The fully recycled cell matched the electrochemical and electroanalytical performance of the original sensing platform, achieving a sensitivity of 22.4 ± 0.2 μA μM-1, a limit of detection of 3.2 ± 0.8 μM, and a recovery value of 95 ± 5% when tested using a real pharmaceutical sample. This study represents a paradigm shift in how sustainability and recycling can be utilized within additively manufactured electrochemistry toward promoting circular economy electrochemistry.
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Affiliation(s)
- Robert
D. Crapnell
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | - Evelyn Sigley
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | - Rhys J. Williams
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | - Tom Brine
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | | | - Cristiane Kalinke
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
- Institute
of Chemistry, University of Campinas (Unicamp), 13083-859 São
Paulo, Brazil
| | - Bruno C. Janegitz
- Department
of Nature Sciences, Mathematics, and Education, Federal University of São Carlos (UFSCar), 13600-970 Araras, São Paulo, Brazil
| | - Juliano A. Bonacin
- Institute
of Chemistry, University of Campinas (Unicamp), 13083-859 São
Paulo, Brazil
| | - Craig E. Banks
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
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14
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Crapnell R, Banks CE. Electroanalytical Overview: The Determination of Levodopa (L-DOPA). ACS MEASUREMENT SCIENCE AU 2023; 3:84-97. [PMID: 37090256 PMCID: PMC10120037 DOI: 10.1021/acsmeasuresciau.2c00071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/21/2023] [Accepted: 01/25/2023] [Indexed: 05/03/2023]
Abstract
L-DOPA (levodopa) is a therapeutic agent which is the most effective medication for treating Parkinson's disease, but it needs dose optimization, and therefore its analytical determination is required. Laboratory analytical instruments can be routinely used to measure L-DOPA but are not always available in clinical settings and traditional research laboratories, and they also have slow result delivery times and high costs. The use of electroanalytical sensing overcomes these problems providing a highly sensitivity, low-cost, and readily portable solution. Consequently, we overview the electroanalytical determination of L-DOPA reported throughout the literature summarizing the endeavors toward sensing L-DOPA, and we offer insights into future research opportunities.
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15
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Guterres Silva LR, Santos Stefano J, Cornélio Ferreira Nocelli R, Campos Janegitz B. 3D electrochemical device obtained by additive manufacturing for sequential determination of paraquat and carbendazim in food samples. Food Chem 2023; 406:135038. [PMID: 36463603 DOI: 10.1016/j.foodchem.2022.135038] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/16/2022] [Accepted: 11/20/2022] [Indexed: 11/24/2022]
Abstract
Pesticides are heavily employed compounds protecting crops, however, these compounds can be extremely harmful to human health. Once the monitoring of pesticides in foods is of great importance, in this work we propose a ready-to-use electrochemical sensor made with 3D printing technology, capable of detecting paraquat and carbendazim in sequential analysis. The proposed electrodes are lab-made and of easy obtention, composed of graphite on a polylactic acid matrix, and provided great results for the analysis of paraquat and carbendazim in honey, milk, juice, and water samples. The sequential analysis of paraquat and carbendazim was proposed, providing optimal analysis of both compounds individually when both are present in a mixture. Limits of detection of 0.01 and 0.03 µmol/L for paraquat and carbendazim, respectively. Recovery tests attested to the suitability of the method, ranging from 94.5 to 113.7 %, and the suitability of 3D printing for environmental and food samples analysis.
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Affiliation(s)
- Luiz Ricardo Guterres Silva
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, 13600-970 Araras, São Paulo, Brazil
| | - Jéssica Santos Stefano
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, 13600-970 Araras, São Paulo, Brazil.
| | | | - Bruno Campos Janegitz
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, 13600-970 Araras, São Paulo, Brazil.
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16
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Sigley E, Kalinke C, Crapnell RD, Whittingham MJ, Williams RJ, Keefe EM, Janegitz BC, Bonacin JA, Banks CE. Circular Economy Electrochemistry: Creating Additive Manufacturing Feedstocks for Caffeine Detection from Post-Industrial Coffee Pod Waste. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2023; 11:2978-2988. [PMID: 36844748 PMCID: PMC9945317 DOI: 10.1021/acssuschemeng.2c06514] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/24/2023] [Indexed: 06/18/2023]
Abstract
The recycling of post-industrial waste poly(lactic acid) (PI-PLA) from coffee machine pods into electroanalytical sensors for the detection of caffeine in real tea and coffee samples is reported herein. The PI-PLA is transformed into both nonconductive and conductive filaments to produce full electroanalytical cells, including additively manufactured electrodes (AMEs). The electroanalytical cell was designed utilizing separate prints for the cell body and electrodes to increase the recyclability of the system. The cell body made from nonconductive filament was able to be recycled three times before the feedstock-induced print failure. Three bespoke formulations of conductive filament were produced, with the PI-PLA (61.62 wt %), carbon black (CB, 29.60 wt %), and poly(ethylene succinate) (PES, 8.78 wt %) chosen as the most suitable for use due to its equivalent electrochemical performance, lower material cost, and improved thermal stability compared to the filaments with higher PES loading and ability to be printable. It was shown that this system could detect caffeine with a sensitivity of 0.055 ± 0.001 μA μM-1, a limit of detection of 0.23 μM, a limit of quantification of 0.76 μM, and a relative standard deviation of 3.14% after activation. Interestingly, the nonactivated 8.78% PES electrodes produced significantly better results in this regard than the activated commercial filament toward the detection of caffeine. The activated 8.78% PES electrode was shown to be able to detect the caffeine content in real and spiked Earl Grey tea and Arabica coffee samples with excellent recoveries (96.7-102%). This work reports a paradigm shift in the way AM, electrochemical research, and sustainability can synergize and feed into part of a circular economy, akin to a circular economy electrochemistry.
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Affiliation(s)
- Evelyn Sigley
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, United Kingdom
| | - Cristiane Kalinke
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, United Kingdom
- Institute
of Chemistry, University of Campinas (Unicamp), 13083-859 Campinas, Säo Paulo, Brazil
| | - Robert D. Crapnell
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, United Kingdom
| | - Matthew J. Whittingham
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, United Kingdom
| | - Rhys J. Williams
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, United Kingdom
| | - Edmund M. Keefe
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, United Kingdom
| | - Bruno Campos Janegitz
- Department
of Nature Sciences, Mathematics, and Education, Federal University of Säo Carlos (UFSCar), 13600-970 Araras, Säo Paulo, Brazil
| | - Juliano Alves Bonacin
- Institute
of Chemistry, University of Campinas (Unicamp), 13083-859 Campinas, Säo Paulo, Brazil
| | - Craig E. Banks
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, United Kingdom
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17
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Blasques RV, de Oliveira PR, Kalinke C, Brazaca LC, Crapnell RD, Bonacin JA, Banks CE, Janegitz BC. Flexible Label-Free Platinum and Bio-PET-Based Immunosensor for the Detection of SARS-CoV-2. BIOSENSORS 2023; 13:190. [PMID: 36831956 PMCID: PMC9954080 DOI: 10.3390/bios13020190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/14/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
The demand for new devices that enable the detection of severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) at a relatively low cost and that are fast and feasible to be used as point-of-care is required overtime on a large scale. In this sense, the use of sustainable materials, for example, the bio-based poly (ethylene terephthalate) (Bio-PET) can be an alternative to current standard diagnostics. In this work, we present a flexible disposable printed electrode based on a platinum thin film on Bio-PET as a substrate for the development of a sensor and immunosensor for the monitoring of COVID-19 biomarkers, by the detection of L-cysteine and the SARS-CoV-2 spike protein, respectively. The electrode was applied in conjunction with 3D printing technology to generate a portable and easy-to-analyze device with a low sample volume. For the L-cysteine determination, chronoamperometry was used, which achieved two linear dynamic ranges (LDR) of 3.98-39.0 μmol L-1 and 39.0-145 μmol L-1, and a limit of detection (LOD) of 0.70 μmol L-1. The detection of the SARS-CoV-2 spike protein was achieved by both square wave voltammetry (SWV) and electrochemical impedance spectroscopy (EIS) by a label-free immunosensor, using potassium ferro-ferricyanide solution as the electrochemical probe. An LDR of 0.70-7.0 and 1.0-30 pmol L-1, with an LOD of 0.70 and 1.0 pmol L-1 were obtained by SWV and EIS, respectively. As a proof of concept, the immunosensor was successfully applied for the detection of the SARS-CoV-2 spike protein in enriched synthetic saliva samples, which demonstrates the potential of using the proposed sensor as an alternative platform for the diagnosis of COVID-19 in the future.
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Affiliation(s)
- Rodrigo Vieira Blasques
- Laboratory of Sensors, Nanomedicine and Nanostructured Materials, Federal University of São Carlos, Araras 13600-970, Brazil
- Department of Physics, Chemistry, and Mathematics, Federal University of São Carlos, Sorocaba 18052-780, Brazil
| | - Paulo Roberto de Oliveira
- Laboratory of Sensors, Nanomedicine and Nanostructured Materials, Federal University of São Carlos, Araras 13600-970, Brazil
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
| | - Cristiane Kalinke
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
- Institute of Chemistry, University of Campinas, Campinas 13083-970, Brazil
| | - Laís Canniatti Brazaca
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA
| | - Robert D. Crapnell
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
| | | | - Craig E. Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK
| | - Bruno Campos Janegitz
- Laboratory of Sensors, Nanomedicine and Nanostructured Materials, Federal University of São Carlos, Araras 13600-970, Brazil
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18
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Crapnell RD, Garcia-Miranda Ferrari A, Whittingham MJ, Sigley E, Hurst NJ, Keefe EM, Banks CE. Adjusting the Connection Length of Additively Manufactured Electrodes Changes the Electrochemical and Electroanalytical Performance. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22239521. [PMID: 36502222 PMCID: PMC9736051 DOI: 10.3390/s22239521] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 11/25/2022] [Accepted: 12/02/2022] [Indexed: 05/09/2023]
Abstract
Changing the connection length of an additively manufactured electrode (AME) has a significant impact on the electrochemical and electroanalytical response of the system. In the literature, many electrochemical platforms have been produced using additive manufacturing with great variations in how the AME itself is described. It is seen that when measuring the near-ideal outer-sphere redox probe hexaamineruthenium (III) chloride (RuHex), decreasing the AME connection length enhances the heterogeneous electrochemical transfer (HET) rate constant (k0) for the system. At slow scan rates, there is a clear change in the peak-to-peak separation (ΔEp) observed in the RuHex voltammograms, with the ΔEp shifting from 118 ± 5 mV to 291 ± 27 mV for the 10 and 100 mm electrodes, respectively. For the electroanalytical determination of dopamine, no significant difference is noticed at low concentrations between 10- and 100-mm connection length AMEs. However, at concentrations of 1 mM dopamine, the peak oxidation is shifted to significantly higher potentials as the AME connection length is increased, with a shift of 150 mV measured. It is recommended that in future work, all AME dimensions, not just the working electrode head size, is reported along with the resistance measured through electrochemical impedance spectroscopy to allow for appropriate comparisons with other reports in the literature. To produce the best additively manufactured electrochemical systems in the future, researchers should endeavor to use the shortest AME connection lengths that are viable for their designs.
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19
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3D printing and its applications in spectroelectrochemistry. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Whittingham MJ, Crapnell RD, Banks CE. Additively Manufactured Rotating Disk Electrodes and Experimental Setup. Anal Chem 2022; 94:13540-13548. [PMID: 36129134 PMCID: PMC9535625 DOI: 10.1021/acs.analchem.2c02884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
This manuscript details the first report of a complete
additively
manufactured rotating disk electrode setup, highlighting how high-performing
equipment can be designed and produced rapidly using additive manufacturing
without compromising on performance. The additively manufactured rotating
disk electrode system was printed using a predominantly acrylonitrile
butadiene styrene (ABS) based filament and used widely available,
low-cost electronics, and simplified machined parts to create. The
additively manufactured rotating disk electrode system costs less
than 2% of a comparable commercial solution (£84.47 ($102.26)
total). The rotating disk electrode is also additively manufactured
using a carbon black/polylactic acid (CB/PLA) equivalent, developing
a completely additively manufactured rotating disk electrode system.
The electrochemical characterization of the additively manufactured
rotating disk electrode setup was performed using hexaamineruthenium(III)
chloride and compared favorably with a commercial glassy carbon electrode.
Finally, this work shows how the additively manufactured rotating
disk electrode experimental system and additive manufactured electrodes
can be utilized for the electroanalytical determination of levodopa,
a drug used in the treatment of Parkinson’s disease, producing
a limit of detection of 0.23 ± 0.03 μM. This work represents
a step-change in how additive manufacturing can be used in research,
allowing the production of high-end equipment for hugely reduced costs,
without compromising on performance. Utilizing additive manufacturing
in this way could greatly enhance the research possibilities for less
well-funded research groups.
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Affiliation(s)
- Matthew J Whittingham
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, United Kingdom
| | - Robert D Crapnell
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, United Kingdom
| | - Craig E Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, United Kingdom
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21
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de Oliveira FM, Mendonça MZM, de Moraes NC, Petroni JM, Neves MM, de Melo EI, Lucca BG, Bezerra da Silva RA. Exploring the coating of 3D-printed insulating substrates with conductive composites: a simple, cheap and versatile strategy to prepare customized high-performance electrochemical sensors. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3345-3354. [PMID: 35979860 DOI: 10.1039/d2ay00803c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The development of 3D-printed electrochemical sensors by fused deposition modeling (FDM) has been increasing exponentially in the last five years. In this context, commercial conductive filaments composed of a blend of carbon particles (e.g., graphene or carbon black (CB)) and insulating thermoplastic polymers (e.g., polylactic acid (PLA) or acrylonitrile butadiene styrene (ABS)) have been widely used for electrode fabrication. However, such materials may be expensive and the electrodes when used "as-printed" exhibit poor electrochemical performance as a function of the low content of conductive particles in the composition (∼10 to 20 wt%), which requires one or more post-treatment steps (e.g. polishing, chemical, electrochemical, and photochemical) to reach good electrochemical performance. In this technical note a less used approach to produce "ready-to-use" electrochemical platforms based on 3D printing is explored, which consists of the coating of 3D-printed insulating substrates with homemade conductive composites. To demonstrate the potentiality of this alternative protocol, 3D-printed ABS insulating substrates at two geometries were coated in a highly loaded graphite (55 wt%) homemade composite (G-ABS) and evaluated for the detection of the ferri/ferrocyanide redox probe and model analytes in stationary and hydrodynamic 3D-printed systems (nitrite in micro-flow injection analysis/μFIA and paracetamol in batch injection analysis/BIA, respectively). The analytical parameters acquired with the coated electrodes were comparable to those obtained using conventional electrodes (glassy carbon, boron-doped diamond and carbon screen-printed) and 3D-printed sensors fabricated with commercial filaments. Moreover, the inclusion of carbon black in the fluid conductive composite was demonstrated as a perspective to obtain modified coated 3D-printed surfaces easily for the first time. This alternative "do it yourself" strategy is promising for the large-scale production of very cheap (US$ 0.08) and high-performance electrodes based on FDM 3D printing. Moreover, this approach dispenses the acquisition of commercial conductive filaments and the laborious development of homemade filaments.
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Affiliation(s)
| | | | | | | | - Matheus Meneguel Neves
- Chemistry Institute, Federal University of Mato Grosso Do Sul, Campo Grande, MS, 79074-460, Brazil
| | - Edmar Isaias de Melo
- Chemistry Institute, Federal University of Uberlândia, Monte Carmelo, MG, 38500-000, Brazil.
| | - Bruno Gabriel Lucca
- Chemistry Institute, Federal University of Mato Grosso Do Sul, Campo Grande, MS, 79074-460, Brazil
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22
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Silva LRG, Stefano JS, Orzari LO, Brazaca LC, Carrilho E, Marcolino-Junior LH, Bergamini MF, Munoz RAA, Janegitz BC. Electrochemical Biosensor for SARS-CoV-2 cDNA Detection Using AuPs-Modified 3D-Printed Graphene Electrodes. BIOSENSORS 2022; 12:bios12080622. [PMID: 36005018 PMCID: PMC9405530 DOI: 10.3390/bios12080622] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 11/16/2022]
Abstract
A low-cost and disposable graphene polylactic (G-PLA) 3D-printed electrode modified with gold particles (AuPs) was explored to detect the cDNA of SARS-CoV-2 and creatinine, a potential biomarker for COVID-19. For that, a simple, non-enzymatic electrochemical sensor, based on a Au-modified G-PLA platform was applied. The AuPs deposited on the electrode were involved in a complexation reaction with creatinine, resulting in a decrease in the analytical response, and thus providing a fast and simple electroanalytical device. Physicochemical characterizations were performed by SEM, EIS, FTIR, and cyclic voltammetry. Square wave voltammetry was employed for the creatinine detection, and the sensor presented a linear response with a detection limit of 0.016 mmol L−1. Finally, a biosensor for the detection of SARS-CoV-2 was developed based on the immobilization of a capture sequence of the viral cDNA upon the Au-modified 3D-printed electrode. The concentration, immobilization time, and hybridization time were evaluated in presence of the DNA target, resulting in a biosensor with rapid and low-cost analysis, capable of sensing the cDNA of the virus with a good limit of detection (0.30 µmol L−1), and high sensitivity (0.583 µA µmol−1 L). Reproducible results were obtained (RSD = 1.14%, n = 3), attesting to the potentiality of 3D-printed platforms for the production of biosensors.
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Affiliation(s)
- Luiz R. G. Silva
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, Araras 13600-970, SP, Brazil
- Department of Physics, Chemistry and Mathematics, Federal University of São Carlos, Sorocaba 18052-780, SP, Brazil
| | - Jéssica S. Stefano
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, Araras 13600-970, SP, Brazil
- Correspondence: (J.S.S.); (B.C.J.)
| | - Luiz O. Orzari
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, Araras 13600-970, SP, Brazil
- Department of Physics, Chemistry and Mathematics, Federal University of São Carlos, Sorocaba 18052-780, SP, Brazil
| | - Laís C. Brazaca
- São Carlos Institute of Chemistry (IQSC), University of São Paulo (USP), São Carlos 13566-590, SP, Brazil
- National Institute of Science and Technology in Bioanalysis-INCTBio, Campinas 13083-970, SP, Brazil
| | - Emanuel Carrilho
- São Carlos Institute of Chemistry (IQSC), University of São Paulo (USP), São Carlos 13566-590, SP, Brazil
- National Institute of Science and Technology in Bioanalysis-INCTBio, Campinas 13083-970, SP, Brazil
| | - Luiz H. Marcolino-Junior
- Chemistry Department, Laboratory of Electrochemical Sensors (LabSensE), Federal University of Paraná, Curitiba 81531-980, PR, Brazil
| | - Marcio F. Bergamini
- Chemistry Department, Laboratory of Electrochemical Sensors (LabSensE), Federal University of Paraná, Curitiba 81531-980, PR, Brazil
| | - Rodrigo A. A. Munoz
- National Institute of Science and Technology in Bioanalysis-INCTBio, Campinas 13083-970, SP, Brazil
- Institute of Chemistry, Federal University of Uberlândia, Uberlândia 38400-902, MG, Brazil
| | - Bruno C. Janegitz
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, Araras 13600-970, SP, Brazil
- Correspondence: (J.S.S.); (B.C.J.)
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23
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Crapnell R, Bernalte E, Ferrari AGM, Whittingham MJ, Williams RJ, Hurst NJ, Banks CE. All-in-One Single-Print Additively Manufactured Electroanalytical Sensing Platforms. ACS MEASUREMENT SCIENCE AU 2022; 2:167-176. [PMID: 36785725 PMCID: PMC9838814 DOI: 10.1021/acsmeasuresciau.1c00046] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
This manuscript provides the first report of a fully additively manufactured (AM) electrochemical cell printed all-in-one, where all the electrodes and cell are printed as one, requiring no post-assembly or external electrodes. The three-electrode cell is printed using a standard non-conductive poly(lactic acid) (PLA)-based filament for the body and commercially available conductive carbon black/PLA (CB/PLA, ProtoPasta) for the three electrodes (working, counter, and reference; WE, CE, and RE, respectively). The electrochemical performance of the cell is evaluated first against the well-known near-ideal outer-sphere redox probe hexaamineruthenium(III) chloride (RuHex), showing that the cell performs well using an AM electrode as the pseudo-RE. Electrochemical activation of the WE via chronoamperometry and NaOH provides enhanced electrochemical performances toward outer-sphere probes and for electroanalytical performance. It is shown that this activation can be completed using either an external commercial Ag|AgCl RE or through simply using the internal AM CB/PLA pseudo-RE and CE. This all-in-one electrochemical cell (AIOEC) was applied toward the well-known detection of ascorbic acid (AA) and acetaminophen (ACOP), achieving linear trends with limits of detection (LODs) of 13.6 ± 1.9 and 4.5 ± 0.9 μM, respectively. The determination of AA and ACOP in real samples from over-the-counter effervescent tablets was explored, and when analyzed individually, recoveries of 102.9 and 100.6% were achieved against UV-vis standards, respectively. Simultaneous detection of both targets was also achieved through detection in the same sample exhibiting 149.75 and 81.35% recoveries for AA and ACOP, respectively. These values differing from the originals are likely due to electrode fouling due to the AA oxidation being a surface-controlled process. The cell design produced herein is easily tunable toward different sample volumes or container shapes for various applications among aqueous electroanalytical sensing; however, it is a simple example of the capabilities of this manufacturing method. This work illustrates the next step in research synergising AM and electrochemistry, producing operational electrochemical sensing platforms in a single print, with no assembly and no requirements for exterior or commercial electrodes. Due to the flexibility, low-waste, and rapid prototyping of AM, there is scope for this work to be able to span and impact a plethora of research areas.
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Affiliation(s)
- Robert
D. Crapnell
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | - Elena Bernalte
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | | | - Matthew J. Whittingham
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | - Rhys J. Williams
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | - Nicholas J. Hurst
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
| | - Craig E Banks
- Faculty
of Science and Engineering, Manchester Metropolitan
University, Chester Street, Manchester M1 5GD, U.K.
- ; Tel: ++(0)1612471196
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24
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Stefano JS, Kalinke C, da Rocha RG, Rocha DP, da Silva VAOP, Bonacin JA, Angnes L, Richter EM, Janegitz BC, Muñoz RAA. Electrochemical (Bio)Sensors Enabled by Fused Deposition Modeling-Based 3D Printing: A Guide to Selecting Designs, Printing Parameters, and Post-Treatment Protocols. Anal Chem 2022; 94:6417-6429. [PMID: 35348329 DOI: 10.1021/acs.analchem.1c05523] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The 3D printing (or additive manufacturing, AM) technology is capable to provide a quick and easy production of objects with freedom of design, reducing waste generation. Among the AM techniques, fused deposition modeling (FDM) has been highlighted due to its affordability, scalability, and possibility of processing an extensive range of materials (thermoplastics, composites, biobased materials, etc.). The possibility of obtaining electrochemical cells, arrays, pieces, and more recently, electrodes, exactly according to the demand, in varied shapes and sizes, and employing the desired materials has made from 3D printing technology an indispensable tool in electroanalysis. In this regard, the obtention of an FDM 3D printer has great advantages for electroanalytical laboratories, and its use is relatively simple. Some care has to be taken to aid the user to take advantage of the great potential of this technology, avoiding problems such as solution leakages, very common in 3D printed cells, providing well-sealed objects, with high quality. In this sense, herein, we present a complete protocol regarding the use of FDM 3D printers for the fabrication of complete electrochemical systems, including (bio)sensors, and how to improve the quality of the obtained systems. A guide from the initial printing stages, regarding the design and structure obtention, to the final application, including the improvement of obtained 3D printed electrodes for different purposes, is provided here. Thus, this protocol can provide great perspectives and alternatives for 3D printing in electroanalysis and aid the user to understand and solve several problems with the use of this technology in this field.
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Affiliation(s)
- Jéssica Santos Stefano
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, 13600-970, Araras, São Paulo, Brazil
| | - Cristiane Kalinke
- Institute of Chemistry, University of Campinas, 13083-859, Campinas, São Paulo, Brazil
| | - Raquel Gomes da Rocha
- Institute of Chemistry, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Diego Pessoa Rocha
- Institute of Chemistry, Department of Fundamental Chemistry, University of São Paulo, 05508-000, São Paulo, São Paulo, Brazil.,Department of Chemistry, Federal Institute of Paraná, 85200-000, Pitanga, Paraná, Brazil
| | | | - Juliano Alves Bonacin
- Institute of Chemistry, University of Campinas, 13083-859, Campinas, São Paulo, Brazil
| | - Lúcio Angnes
- Institute of Chemistry, Department of Fundamental Chemistry, University of São Paulo, 05508-000, São Paulo, São Paulo, Brazil
| | - Eduardo Mathias Richter
- Institute of Chemistry, Federal University of Uberlândia, 38400-902, Uberlândia, Minas Gerais, Brazil
| | - Bruno Campos Janegitz
- Department of Nature Sciences, Mathematics and Education, Federal University of São Carlos, 13600-970, Araras, São Paulo, Brazil
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25
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Kalinke C, de Oliveira PR, Neumsteir NV, Henriques BF, de Oliveira Aparecido G, Loureiro HC, Janegitz BC, Bonacin JA. Influence of filament aging and conductive additive in 3D printed sensors. Anal Chim Acta 2022; 1191:339228. [PMID: 35033250 DOI: 10.1016/j.aca.2021.339228] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/18/2021] [Accepted: 10/27/2021] [Indexed: 11/26/2022]
Abstract
3D printing technology combined with electrochemical techniques have allowed the development of versatile and low-cost devices. However, some aspects need to be considered for the good quality and useful life of the sensors. In this work, we have demonstrated herein that the filament aging, the conductive material, and the activation processes (post-treatments) can influence the surface characteristics and the electrochemical performance of the 3D printed sensors. Commercial filaments and 3D printed sensors were morphologically, thermally, and electrochemically analyzed. The activated graphene-based (Black Magic®) sensor showed the best electrochemical response, compared to the carbon black-filament (Proto-Pasta®). In addition, we have proven that filament aging harms the performance of the sensors since the electrodes produced with three years old filament had a considerably lower intra-days reproducibility. Finally, the activated graphene-based sensor has shown the best performance for the electrochemical detection of bisphenol A, demonstrating the importance of evaluating and control the characteristics and quality of filaments to improve the mechanical, conductive, and electrochemical performance of 3D printed sensors.
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Affiliation(s)
- Cristiane Kalinke
- Institute of Chemistry, University of Campinas (UNICAMP), 13083-859, Campinas, São Paulo, Brazil.
| | - Paulo Roberto de Oliveira
- Department of Nature Science, Mathematics and Education, Federal University of São Carlos (UFSCar), 13600-970, Araras, São Paulo, Brazil
| | | | - Brunna Ferri Henriques
- Department of Nature Science, Mathematics and Education, Federal University of São Carlos (UFSCar), 13600-970, Araras, São Paulo, Brazil
| | | | - Hugo Campos Loureiro
- Institute of Chemistry, University of Campinas (UNICAMP), 13083-859, Campinas, São Paulo, Brazil
| | - Bruno Campos Janegitz
- Department of Nature Science, Mathematics and Education, Federal University of São Carlos (UFSCar), 13600-970, Araras, São Paulo, Brazil
| | - Juliano Alves Bonacin
- Institute of Chemistry, University of Campinas (UNICAMP), 13083-859, Campinas, São Paulo, Brazil.
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26
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Garcia-Miranda Ferrari A, Hurst NJ, Bernalte E, Crapnell RD, Whittingham MJ, Brownson DAC, Banks CE. Exploration of defined 2-dimensional working electrode shapes through additive manufacturing. Analyst 2022; 147:5121-5129. [DOI: 10.1039/d2an01412b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In this work, the electrochemical response of different morphologies (shapes) and dimensions of additively manufactured (3D-printing) carbon black(CB)/poly-lactic acid (PLA) electrodes are reported.
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Affiliation(s)
| | - Nicholas J. Hurst
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, UK
| | - Elena Bernalte
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, UK
| | - Robert D. Crapnell
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, UK
| | - Matthew J. Whittingham
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, UK
| | - Dale A. C. Brownson
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, UK
| | - Craig E. Banks
- Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, M1 5GD, UK
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27
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Marzouk SAM, Alyammahi AR, Fanjul-Bolado P. Development and Characterization of Novel Flow Injection, Thin-Layer, and Batch Cells for Electroanalytical Applications Using Screen-Printed Electrodes. Anal Chem 2021; 93:16690-16699. [PMID: 34851103 DOI: 10.1021/acs.analchem.1c04337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the present paper, the design, fabrication, and analytical applications of three novel cells for flow injection, thin-layer, and batch electrochemical measurements using screen-printed electrode chips (SPECs) are described. Each cell consisted of an acrylic base and a transparent acrylic cover. The essential construction feature of each cell base was a cavity to accommodate the SPEC, whereas the construction features of the clear acrylic cover determined the cell shape and its function. The presented cells offered several common advantages, which include (i) convenient electrical connection of the SPEC to any potentiostat without the need for special cables, (ii) the SPEC was completely contained within the cell body, which eliminated the risk of its breakage, (iii) suitable for use with a large number of commercially available SPECs, and (iv) excellent SPEC sealing. The flow cell offered additional advantages of convenient customization of the cell dead volume and convenient visual inspection of the surface and the vicinity of SPEs. The presented thin-layer cell is the first report on a dedicated cell which realized a near-ideal thin-layer steady-state voltammetry using SPECs. The universal batch cell (UBC) offered extreme versatility and proved suitable for all batch applications in sample volumes ranging from 25 μL to 40 mL with an optional controlled temperature and atmosphere. Moreover, a novel way to achieve stirred-solution chronoamperometry and hydrodynamic voltammetry using SPECs (with superior signal-to-noise ratios) using the UBC is described. Electrochemical measurements to demonstrate the merits and the applicability of all cells are also presented.
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Affiliation(s)
- Sayed A M Marzouk
- Department of Chemistry, UAE University, P.O. Box 15551 Al Ain, United Arab Emirates
| | - Aisha R Alyammahi
- Department of Chemistry, UAE University, P.O. Box 15551 Al Ain, United Arab Emirates
| | - Pablo Fanjul-Bolado
- Metrohm DropSens S.L., Edificio CEEI-Parque Tecnológico de Asturias, 33428 Llanera, Spain
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28
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29
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Rocha DP, Rocha RG, Castro SVF, Trindade MAG, Munoz RAA, Richter EM, Angnes L. Posttreatment of 3D‐printed surfaces for electrochemical applications: A critical review on proposed protocols. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100136] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Affiliation(s)
- Diego P. Rocha
- Instituto de Química Universidade de São Paulo Sao Paulo Brazil
| | - Raquel G. Rocha
- Instituto de Química Universidade Federal de Uberlândia berlândia Brazil
| | | | - Magno A. G. Trindade
- Faculdade de Ciências Exatas e Tecnologia Universidade Federal da Grande Dourados Dourados Brazil
- UNESP Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT‐DATREM) National Institute for Alternative Technologies of Detection Institute of Chemistry Araraquara Brazil
| | | | - Eduardo M. Richter
- Instituto de Química Universidade Federal de Uberlândia berlândia Brazil
| | - Lucio Angnes
- Instituto de Química Universidade de São Paulo Sao Paulo Brazil
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