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Selemani MA, Martin RS. Use of 3D printing to integrate microchip electrophoresis with amperometric detection. Anal Bioanal Chem 2024; 416:4749-4758. [PMID: 38581532 DOI: 10.1007/s00216-024-05260-6] [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: 02/08/2024] [Revised: 03/08/2024] [Accepted: 03/15/2024] [Indexed: 04/08/2024]
Abstract
This paper describes the use of PolyJet 3D printing to fabricate microchip electrophoresis devices with integrated microwire electrodes for amperometric detection. The fabrication process involves 3D printing of two separate pieces, a channel layer and an electrode layer. The channel layer is created by 3D printing on a pre-fabricated mold with a T-intersection. For the electrode layer, a stencil design is printed directly on the printing tray and covered with a piece of transparent glass. Microwire electrodes are adhered over the glass piece (guided by underlaying stencil) and a CAD design of the electrode layer is then printed on top of the microwire electrode. After delamination from the glass after printing, the microwire is embedded in the printed piece, with the stencil design ensuring that alignment and positioning of the electrode is reproducible for each print. After a thermal bonding step between the channel layer and electrode layer, a complete electrophoresis device with integrated microelectrodes for amperometric detection results. It is shown that this approach enables different microwire electrodes (gold or platinum) and sizes (100 or 50 µm) to be integrated in an end-channel configuration with no gap between the electrode and the separation channel. These devices were used to separate a mixture of catecholamines and the effect of separation voltage on the potential voltage applied on the working electrode was also investigated. In addition, the effect of electrode size on the number of theoretical plates and limit of detection was studied. Finally, a device that contains different channel heights and a detection electrode was 3D-printed to integrate continuous flow sampling with microchip electrophoresis and amperometric detection.
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Affiliation(s)
- Major A Selemani
- Department of Chemistry, Saint Louis University, Saint Louis, MO, USA
| | - R Scott Martin
- Department of Chemistry, Saint Louis University, Saint Louis, MO, USA.
- Center for Additive Manufacturing, Saint Louis University, Saint Louis, MO, USA.
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Futane A, Narayanamurthy V, Jadhav P, Srinivasan A. Aptamer-based rapid diagnosis for point-of-care application. MICROFLUIDICS AND NANOFLUIDICS 2023; 27:15. [PMID: 36688097 PMCID: PMC9847464 DOI: 10.1007/s10404-022-02622-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 12/31/2022] [Indexed: 05/31/2023]
Abstract
Aptasensors have attracted considerable interest and widespread application in point-of-care testing worldwide. One of the biggest challenges of a point-of-care (POC) is the reduction of treatment time compared to central facilities that diagnose and monitor the applications. Over the past decades, biosensors have been introduced that offer more reliable, cost-effective, and accurate detection methods. Aptamer-based biosensors have unprecedented advantages over biosensors that use natural receptors such as antibodies and enzymes. In the current epidemic, point-of-care testing (POCT) is advantageous because it is easy to use, more accessible, faster to detect, and has high accuracy and sensitivity, reducing the burden of testing on healthcare systems. POCT is beneficial for daily epidemic control as well as early detection and treatment. This review provides detailed information on the various design strategies and virus detection methods using aptamer-based sensors. In addition, we discussed the importance of different aptamers and their detection principles. Aptasensors with higher sensitivity, specificity, and flexibility are critically discussed to establish simple, cost-effective, and rapid detection methods. POC-based aptasensors' diagnostic applications are classified and summarised based on infectious and infectious diseases. Finally, the design factors to be considered are outlined to meet the future of rapid POC-based sensors.
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Affiliation(s)
- Abhishek Futane
- Fakulti Kejuruteraan Elektronik Dan Kejuruteraan Komputer, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, Durian Tunggal, 76100 Melaka, Malaysia
| | - Vigneswaran Narayanamurthy
- Advance Sensors and Embedded Systems (ASECs), Centre for Telecommunication Research and Innovation, Fakulti Teknologi Kejuruteraan Elektrik Dan Elektronik, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, Durian Tunggal, 76100 Melaka, Malaysia
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Pramod Jadhav
- Faculty of Civil Engineering Technology, Universiti Malaysia Pahang (UMP) Lebuhraya Tun Razak, Gambang, 26300 Kuantan, Pahang Malaysia
- InnoFuTech, No 42/12, 7Th Street, Vallalar Nagar, Chennai, Tamil Nadu 600072 India
| | - Arthi Srinivasan
- Faculty of Chemical and Process Engineering Technology, University Malaysia Pahang (UMP), Lebuhraya Tun Razak, Gambang, 26300 Kunatan, Pahang Malaysia
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Lucas SB, Duarte LM, Rezende KCA, Coltro WKT. Nitrite Determination in Environmental Water Samples Using Microchip Electrophoresis Coupled with Amperometric Detection. MICROMACHINES 2022; 13:1736. [PMID: 36296090 PMCID: PMC9610075 DOI: 10.3390/mi13101736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/07/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Nitrite is considered an important target analyte for environmental monitoring. In water resources, nitrite is the result of the nitrogen cycle and the leaching processes of pesticides based on nitrogenous compounds. A high concentration of nitrite can be associated with intoxication processes and metabolic disorders in humans. The present study describes the development of a portable analytical methodology based on microchip electrophoresis coupled with amperometric detection for the determination of nitrite in environmental water samples. Electrophoretic and detection conditions were optimized, and the best separations were achieved within 60 s by employing a mixture of 30 mmol L-1 lactic acid and 15 mmol L-1 histidine (pH = 3.8) as a running buffer applying 0.7 V to the working electrode (versus Pt) for amperometric measurements. The developed methodology revealed a satisfactory linear behavior in the concentration range between 20 and 80 μmolL-1 (R2 = 0.999) with a limit of detection of 1.3 μmolL-1. The nitrite concentration was determined in five water samples and the achieved values ranged from (28.7 ± 1.6) to (67.1 ± 0.5) µmol L-1. The data showed that using the proposed methodology revealed satisfactory recovery values (83.5-103.8%) and is in good agreement with the reference technique. Due to its low sample consumption, portability potential, high analytical frequency, and instrumental simplicity, the developed methodology may be considered a promising strategy to monitor and quantitatively determine nitrite in environmental samples.
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Affiliation(s)
| | - Lucas Mattos Duarte
- Instituto de Química, Universidade Federal de Goiás, Goiânia 74690-900, GO, Brazil
- Instituto de Química, Departamento de Química Analítica, Universidade Federal Fluminense, Niterói 24020-141, RJ, Brazil
| | | | - Wendell Karlos Tomazelli Coltro
- Instituto de Química, Universidade Federal de Goiás, Goiânia 74690-900, GO, Brazil
- Instituto Nacional de Ciência e Tecnologia de Bioanalítica (INCTBio), Campinas 13083-861, SP, Brazil
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Poboży E, Trojanowicz M. Application of Capillary Electrophoresis for Determination of Inorganic Analytes in Waters. Molecules 2021; 26:6972. [PMID: 34834063 PMCID: PMC8625978 DOI: 10.3390/molecules26226972] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 11/16/2022] Open
Abstract
Aside from HPLC and GC, capillary electrophoresis (CE) is one of the most important techniques for high-performance separations in modern analytical chemistry. Its main advantages are the possibility of using different detection techniques, the possibility of in-capillary sample processing for preconcentration or derivatization, and ease of instrumental miniaturization down to the microfluidic scale. Those features are utilized in the separation of macromolecules in biochemistry and in genetic investigations, but they can be also used in determinations of inorganic ions in water analysis. This review, based on about 100 original research works, presents applications of CE methods in water analysis reported in recent decade, mostly regarding conductivity detection or indirect UV detection. The developed applications include analysis of high salinity sea waters, as well as analysis of other surface waters and drinking waters.
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Affiliation(s)
- Ewa Poboży
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland;
| | - Marek Trojanowicz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland;
- Laboratory of Nuclear Analytical Techniques, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland
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5
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Microchip electrophoresis and electrochemical detection: A review on a growing synergistic implementation. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138928] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Ambaye AD, Kefeni KK, Mishra SB, Nxumalo EN, Ntsendwana B. Recent developments in nanotechnology-based printing electrode systems for electrochemical sensors. Talanta 2021; 225:121951. [DOI: 10.1016/j.talanta.2020.121951] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 02/08/2023]
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Carvalho RM, Ferreira VS, Lucca BG. A novel all-3D-printed thread-based microfluidic device with an embedded electrochemical detector: first application in environmental analysis of nitrite. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:1349-1357. [PMID: 33656036 DOI: 10.1039/d1ay00070e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A microfluidic thread electroanalytical device (μTED) containing an embedded electrochemical detector is presented for the first time in this work. This novel device was entirely produced in an automated way using the fused deposition modeling (FDM) 3D printing technique. The main platform was fabricated with acrylonitrile butadiene styrene (ABS) filament, while the integrated electrochemical detector was produced using a commercial conductive filament composed of carbon black and polylactic acid (CB/PLA). The microfluidic channels consisted of cotton threads, which act as passive pumps, and the μTED was used for microflow injection analysis (μFIA). As a proof of concept, this μFIA system was utilized for the amperometric sensing of nitrite in natural waters. This is the first report on the use of both μTEDs and 3D-printed CB/PLA electrodes to determine this species. This fully 3D-printed μTED was characterized and all experimental and instrumental parameters related to the method were studied and optimized. Using the best conditions, the proposed approach showed a linear response in the concentration range from 8 to 200 μmol L-1 and a limit of detection (LOD) of 2.39 μmol L-1. The LOD obtained here was ca. ten-fold lower than the maximum contaminant level for nitrite in drinking water established by the Brazilian and US legislation. Moreover, the platform presented good repeatability and reproducibility (relative standard deviations (RSDs) were 2.1% and 2.5%, respectively). Lastly, the 3D-printed μTED was applied for the quantification of nitrite in well water samples and the results obtained showed good precision (RSD < 3%) and excellent concordance (relative error was ca.±3%) with those achieved by ion chromatography, used for validation.
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Affiliation(s)
- Rayan Marcel Carvalho
- Chemistry Institute, Federal University of Mato Grosso do Sul, Campo Grande, MS 79074-460, Brazil.
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Kongkaew S, Kanatharana P, Thavarungkul P, Limbut W. Studying the preparation, electrochemical performance testing, comparison and application of a cost-effective flexible graphene working electrode. J Colloid Interface Sci 2021; 583:487-498. [PMID: 33017693 DOI: 10.1016/j.jcis.2020.08.121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/21/2020] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
-A cost-effective flexible graphene working electrode (FGWE) was fabricated using overhead projector transparent film (OPTF) and a screen-printing technique. The surface morphology and electrochemical behavior of the electrode were characterized by scanning electron microscopy and cyclic voltammetry. The electrode presented a very thin layer of conductive ink (16.0 ± 0.7 µm) on a large effective surface area (0.301 ± 0.001 cm-2). The anodic peak current density (jpa) of acetaminophen (ACT) in FGWE was 5.2, 3.7, 3.5 and 6.0 times greater than the jpa of glassy carbon electrode (GCE), flexible carbon working electrode (FCWE), SPE1, and SPE2, respectively. The electrochemical performance of FGWE toward ACT was evaluated by differential pulse voltammetry. Under optimized condition, ACT was quantified in a range of 4-100 µM, with good sensitivity, good accuracy (recovery = 82.3 ± 0.4 to 106 ± 3%), and excellent precision. FGWE was applied to determine ACT in commercial pharmaceutical formulations. The results of the study are in good agreement with those obtained by the standard spectrophotometric method. These results indicate that disposable FGWE is particularly useful for the detection of ACT, and its performance may serve as a platform for cost-effective flexible electrochemical sensors.
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Affiliation(s)
- Supatinee Kongkaew
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Proespichaya Kanatharana
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Panote Thavarungkul
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Warakorn Limbut
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand; Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
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Nouwairi RL, O'Connell KC, Gunnoe LM, Landers JP. Microchip Electrophoresis for Fluorescence-Based Measurement of Polynucleic Acids: Recent Developments. Anal Chem 2020; 93:367-387. [PMID: 33351599 DOI: 10.1021/acs.analchem.0c04596] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Renna L Nouwairi
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22903, United States
| | - Killian C O'Connell
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22903, United States
| | - Leah M Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22903, United States
| | - James P Landers
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22903, United States.,Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia 22903, United States.,Department of Pathology, University of Virginia Health Science Center, Charlottesville, Virginia 22903, United States
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Easy and rapid pen-on-paper protocol for fabrication of paper analytical devices using inexpensive acrylate-based plastic welding repair kit. Talanta 2020; 219:121246. [DOI: 10.1016/j.talanta.2020.121246] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/06/2020] [Accepted: 06/08/2020] [Indexed: 12/28/2022]
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Schilly KM, Gunawardhana SM, Wijesinghe MB, Lunte SM. Biological applications of microchip electrophoresis with amperometric detection: in vivo monitoring and cell analysis. Anal Bioanal Chem 2020; 412:6101-6119. [PMID: 32347360 PMCID: PMC8130646 DOI: 10.1007/s00216-020-02647-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/29/2020] [Accepted: 04/06/2020] [Indexed: 01/01/2023]
Abstract
Microchip electrophoresis with amperometric detection (ME-EC) is a useful tool for the determination of redox active compounds in complex biological samples. In this review, a brief background on the principles of ME-EC is provided, including substrate types, electrode materials, and electrode configurations. Several different detection approaches are described, including dual-channel systems for dual-electrode detection and electrochemistry coupled with fluorescence and chemiluminescence. The application of ME-EC to the determination of catecholamines, adenosine and its metabolites, and reactive nitrogen and oxygen species in microdialysis samples and cell lysates is also detailed. Lastly, approaches for coupling of ME-EC with microdialysis sampling to create separation-based sensors that can be used for near real-time monitoring of drug metabolism and neurotransmitters in freely roaming animals are provided. Graphical abstract.
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Affiliation(s)
- Kelci M Schilly
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, KS, 66045, USA
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, 2030 Becker Drive, Lawrence, KS, 66047, USA
| | - Shamal M Gunawardhana
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, KS, 66045, USA
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, 2030 Becker Drive, Lawrence, KS, 66047, USA
| | - Manjula B Wijesinghe
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, KS, 66045, USA
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, 2030 Becker Drive, Lawrence, KS, 66047, USA
| | - Susan M Lunte
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, KS, 66045, USA.
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, 2030 Becker Drive, Lawrence, KS, 66047, USA.
- Department of Pharmaceutical Chemistry, University of Kansas, 2010 Becker Drive, Lawrence, KS, 66045, USA.
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12
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Reversible microfluidics device for precious metal electrodeposition and depletion yield studies. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Ragab MAA, El-Kimary EI. Recent Advances and Applications of Microfluidic Capillary Electrophoresis: A Comprehensive Review (2017-Mid 2019). Crit Rev Anal Chem 2020; 51:709-741. [PMID: 32447968 DOI: 10.1080/10408347.2020.1765729] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Microfluidic capillary electrophoresis (MCE) is the novel technique resulted from the CE mininaturization as planar separation and analysis device. This review presents and discusses various application fields of this advanced technology published in the period 2017 till mid-2019 in eight different sections including clinical, biological, single cell analysis, environmental, pharmaceuticals, food analysis, forensic and ion analysis. The need for miniaturization of CE and the consequence advantages achieved are also discussed including high-throughput, miniaturized detection, effective separation, portability and the need for micro- or even nano-volume of samples. Comprehensive tables for the MCE applications in the different studied fields are provided. Also, figure comparing the number of the published papers applying MCE in the eight discussed fields within the studied period is included. The future investigation should put into consideration the possibility of replacing conventional CE with the MCE after proper validation. Suitable validation parameters with their suitable accepted ranges should be tailored for analysis methods utilizing such unique technique (MCE).
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Affiliation(s)
- Marwa A A Ragab
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, Alexandria University, El-Messalah, Alexandria, Egypt
| | - Eman I El-Kimary
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, Alexandria University, El-Messalah, Alexandria, Egypt
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15
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Fabrication of Recycle Screen Printed Carbon Electrode and Its Application for Voltammetric Detection of Gallic Acid. JURNAL KIMIA SAINS DAN APLIKASI 2019. [DOI: 10.14710/jksa.22.5.164-172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Gallic acid is phenolic compound found in tea and act as antiradical agent. This compound is electrochemically active and could be detected using voltammetric technique. This study aims to obtain recycle screen printed carbon electrode (rSPCE) and applied it for voltammetric detection of gallic acid. rSPCE was prepared by modification of used SPCE working electrode using a mixture of graphite:polystyrene at ratio of 95:5, 90:10, and 85:15 (w/w). Graphite:polystyrene was suspended in chloroform and deposited on SPCE by drop casting method. Phosphate buffer 0.1 M at pH of 2.5, 3.5, and 7 were used as electrolyte solution in voltammetric detection of gallic acid. The optimum condition of gallic acid detection was obtained when phosphate buffer 0,1 M at pH of 2.5 and rSPCE in composition of graphite:polystyrene (95:5) used as electrolyte and working electrode, respectively. Gallic acid has 2 oxidation peaks at potential of 0.26 V and 0.63 V vs Ag/AgCl, respectively. At concentration of 1 – 5 mM, gallic acid and oxidation currents provide linear regression with the coefficient determination of 0.9947 and 0.9864, consecutively for peak number 1 and 2. Measurement of gallic acid at rSPCE 95:5 shows good precision with %RSD < 5%. rSPCE was successfully applied for voltammetric detection of gallic acid in standard solution with accuracy > 96%, however further development is needed before its application for gallic acid measurement in real sample such as tea extract.
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de Moraes NC, da Silva ENT, Petroni JM, Ferreira VS, Lucca BG. Design of novel, simple, and inexpensive 3D printing-based miniaturized electrochemical platform containing embedded disposable detector for analytical applications. Electrophoresis 2019; 41:278-286. [PMID: 31529502 DOI: 10.1002/elps.201900270] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/29/2019] [Accepted: 08/30/2019] [Indexed: 12/11/2022]
Abstract
This paper describes the development of a novel, simple, and inexpensive electrochemical device containing an integrated and disposable three-electrode system for detection. The base of this platform consists on a PDMS structure containing microchannels which were prototyped using 3D-printed molds. Pencil graphite leads were inserted into these microchannels and utilized as working, counter and reference electrodes in a novel design. Morphological analysis and electrochemical experiments with benchmark redox probes were carried out in order to evaluate the performance and characterize the miniaturized device proposed. Even using inexpensive materials and a simple fabrication protocol, the electrochemical platform developed provided good repeatability and reproducibility over a low cost (ca. $2 per device), acceptable lifetime (ca. 250 voltammetric runs) and extremely reduced consumption of samples and reagents (order of µL). As proof of concept, the analytical feasibility of the platform was investigated through the simultaneous determination of dopamine (DOPA) and acetaminophen (AC). The two analytes showed linear dependence on the concentration range from 1 to 15 µM and the LODs achieved were 0.21 µM for DOPA and 0.29 µM for AC. Moreover, the platform was successfully applied on the determination of DOPA and AC in spiked blood serum and urine samples. The results obtained with the device described here were better than some reports in literature that use more costly electrodic materials and complex modification steps for the detection of the same analytes.
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Affiliation(s)
| | | | | | - Valdir Souza Ferreira
- Instituto de Química, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Bruno Gabriel Lucca
- Instituto de Química, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
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Chen X, Wang J, Shen HY, Su X, Cao Y, Li T, Gan N. Microfluidic Chip for Multiplex Detection of Trace Chemical Contaminants Based on Magnetic Encoded Aptamer Probes and Multibranched DNA Nanostructures as Signal Tags. ACS Sens 2019; 4:2131-2139. [PMID: 31366194 DOI: 10.1021/acssensors.9b00963] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The development of multiplex assays to simultaneously monitor multiclass chemical contaminants that commonly coexist in foods, such as heavy metal ions, antibiotics, and estrogen residues, is gaining attention. Here, a microfluidic chip (MC)-based multianalysis method coupled with magnetic encoded aptamer probes was used for simultaneous detection of kanamycin, 17β-estradiol, and lead ion (Pb2+). Using this innovative strategy, the magnetic bead (MB)-based encoded probes labeled with aptamer hybrid chains were first used to selectively capture multiple targets, followed by generating single-stranded primers. The primers triggered a multibranched hybridization chain reaction (mHCR). Finally, three kinds of complementary strands (C-DNAs) with different lengths were hybridized with the arms of the mHCR products to form three types of multibranched DNA nanostructures. The decrement signals of C-DNAs were employed for qualification of targets. As the signal tags corresponded to different targets, the DNA nanostructures realized "one target for the decrease of massive C-DNAs" to improve sensitivity. The use of MB-based encoded probes could achieve magnetic separation to eliminate interference in the complex. The detection limits of this method were 1.76 × 10-4 nM (kanamycin), 1.18 × 10-4 nM (17β-estradiol), and 1.29 × 10-4 nM (lead ion). Furthermore, the MC platform is reusable and can be used for more than 4000 samples. The assay combining the MC with MB-based encoded probes with multibranched DNA signal tags offers a universal, reusable, and high-throughput detection platform for screening multiclass chemical contaminants in food samples with complex matrices.
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Affiliation(s)
- Xixue Chen
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo 31521, China
| | - Jiaqi Wang
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo 31521, China
| | - Hao-Yu Shen
- Ningbo Institute of Technology, Zhejiang University; Ningbo 315100, China
| | - XiuRong Su
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo 31521, China
| | - Yuting Cao
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo 31521, China
| | - Tianhua Li
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo 31521, China
| | - Ning Gan
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo 31521, China
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da Silva ENT, Ferreira VS, Lucca BG. Rapid and inexpensive method for the simple fabrication of PDMS‐based electrochemical sensors for detection in microfluidic devices. Electrophoresis 2019; 40:1322-1330. [DOI: 10.1002/elps.201800478] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/10/2019] [Accepted: 01/13/2019] [Indexed: 11/06/2022]
Affiliation(s)
| | - Valdir Souza Ferreira
- Instituto de QuímicaUniversidade Federal de Mato Grosso do Sul Campo Grande MS Brazil
| | - Bruno Gabriel Lucca
- Instituto de QuímicaUniversidade Federal de Mato Grosso do Sul Campo Grande MS Brazil
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YANG MP, HUANG Z, XIE Y, YOU H. Development of Microchip Electrophoresis and Its Applications in Ion Detection. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1016/s1872-2040(18)61085-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Caetano LP, Lima AP, Tormin TF, Richter EM, Espindola FS, Botelho FV, Munoz RAA. Carbon-nanotube Modified Screen-printed Electrode for the Simultaneous Determination of Nitrite and Uric Acid in Biological Fluids Using Batch-injection Amperometric Detection. ELECTROANAL 2018. [DOI: 10.1002/elan.201800189] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Larissa P. Caetano
- Federal University of Uberlândia, Institute of Biotechnology; 38400-902 Uberlândia, MG Brazil
| | - Ana P. Lima
- Federal University of Uberlândia, Institute of Chemistry; 38400-902 Uberlândia, MG Brazil
| | - Thiago F. Tormin
- Federal University of Uberlândia, Institute of Chemistry; 38400-902 Uberlândia, MG Brazil
| | - Eduardo M. Richter
- Federal University of Uberlândia, Institute of Chemistry; 38400-902 Uberlândia, MG Brazil
| | - Foued S. Espindola
- Federal University of Uberlândia, Institute of Biotechnology; 38400-902 Uberlândia, MG Brazil
| | - Françoise V. Botelho
- Federal University of Uberlândia, Institute of Biotechnology; 38400-902 Uberlândia, MG Brazil
| | - Rodrigo A. A. Munoz
- Federal University of Uberlândia, Institute of Chemistry; 38400-902 Uberlândia, MG Brazil
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21
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Zhu XD, Chu J, Wang YH. Advances in Microfluidics Applied to Single Cell Operation. Biotechnol J 2018; 13. [DOI: 10.1002/biot.201700416] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 11/11/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Xu-Dong Zhu
- National Engineering Centre for Biotechnology (Shanghai); College of Biotechnology; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Ju Chu
- National Engineering Centre for Biotechnology (Shanghai); College of Biotechnology; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Yong-Hong Wang
- National Engineering Centre for Biotechnology (Shanghai); College of Biotechnology; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
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22
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Natiele Tiago da Silva E, Marques Petroni J, Gabriel Lucca B, Souza Ferreira V. Pencil graphite leads as simple amperometric sensors for microchip electrophoresis. Electrophoresis 2017; 38:2733-2740. [DOI: 10.1002/elps.201700160] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/31/2017] [Accepted: 08/04/2017] [Indexed: 12/12/2022]
Affiliation(s)
| | | | - Bruno Gabriel Lucca
- Departamento de Ciências Naturais; Universidade Federal do Espírito Santo; São Mateus Brazil
| | - Valdir Souza Ferreira
- Instituto de Química; Universidade Federal de Mato Grosso do Sul; Campo Grande Brazil
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23
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Petroni JM, Lucca BG, Ferreira VS. Simple and Inexpensive Electrochemical Platform Based on Novel Homemade Carbon Ink and its Analytical Application for Determination of Nitrite. ELECTROANAL 2017. [DOI: 10.1002/elan.201700117] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
| | - Bruno Gabriel Lucca
- Departamento de Ciências Naturais; Universidade Federal do Espírito Santo; São Mateus, ES 29932-540 Brazil
| | - Valdir Souza Ferreira
- Instituto de Química; Universidade Federal de Mato Grosso do Sul; Campo Grande, MS 79074-460 Brazil
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