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A review of microfabricated electrochemical biosensors for DNA detection. Biosens Bioelectron 2019; 134:57-67. [DOI: 10.1016/j.bios.2019.03.055] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/21/2019] [Accepted: 03/26/2019] [Indexed: 02/07/2023]
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2
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Chen WX, Li JG, Wan XH, Zou XS, Qi SY, Zhang YQ, Weng QM, Li JY, Xiong WM, Xie C, Cheng WL. Design of a microfluidic chip consisting of micropillars and its use for the enrichment of nasopharyngeal cancer cells. Oncol Lett 2019; 17:1581-1588. [PMID: 30675216 PMCID: PMC6341559 DOI: 10.3892/ol.2018.9771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 11/20/2018] [Indexed: 01/01/2023] Open
Abstract
The aim of the present study was to discuss the design of a microfluidic chip consisting of columns, and its use for the enrichment of nasopharyngeal cancer (NPC) cells. A microfluidic chip experiment was simulated using FLUENT software. Within the microfluidic chip, aptamers were bound to the reaction chamber (consisting of columns) using a biotin-avidin system. Cell suspension was introduced into the reaction chamber to capture NPC cells. NPC cells were subsequently eluted, and the capture rate of the cells was calculated. The modified aptamer-bound microfluidic chip was able to capture NPC cells with a capture rate of ~90%. The modified aptamer-bound microfluidic chip has a wide range of potential applications for the diagnosis of NPC.
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Affiliation(s)
- Wen-Xue Chen
- Department of Clinical Laboratory, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Jin-Gao Li
- Department of Radiotherapy, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Xiang-Hui Wan
- Department of Clinical Laboratory, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Xue-Sen Zou
- Department of Clinical Laboratory, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Shu-Yi Qi
- Department of Clinical Laboratory, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Yu-Qing Zhang
- Department of Clinical Laboratory, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Qiu-Min Weng
- Department of Radiotherapy, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Jun-Yu Li
- Department of Radiotherapy, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Wen-Min Xiong
- Department of Radiotherapy, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Chen Xie
- Department of Radiotherapy, Jiangxi Cancer Hospital, Nanchang, Jiangxi 330029, P.R. China
| | - Wei-Liang Cheng
- Jiangxi Railway Health Supervision Institute, Nanchang, Jiangxi 330003, P.R. China
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Pruna R, Palacio F, Baraket A, Zine N, Streklas A, Bausells J, Errachid A, López M. A low-cost and miniaturized potentiostat for sensing of biomolecular species such as TNF-α by electrochemical impedance spectroscopy. Biosens Bioelectron 2017; 100:533-540. [PMID: 28988118 DOI: 10.1016/j.bios.2017.09.049] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 09/19/2017] [Accepted: 09/27/2017] [Indexed: 02/04/2023]
Abstract
Miniaturizing potentiostats, keeping their cost low and yet preserving full measurement characteristics (e.g. bandwidth, determination of capacitive/inductive contribution to sensor's impedance and parallel screening) is still an unresolved challenge in bioelectronics. In this work, the combination of simple analogue circuitry together with powerful microcontrollers and a digital filter implementation is presented as an alternative to complex and incomplete architectures reported in the literature. A low-cost acquisition electronic system fully integrated with a biosensors platform containing eight gold working microelectrodes and integrated reference and counter electrodes was developed and validated. The manufacturing cost of the prototype was kept below 300 USD. The performance of the proposed device was benchmarked against a commercial impedance analyzer through the electrochemical analysis of a highly sensitive biosensor for the detection of tumor necrosis factor α (TNF-α) within the randomly chosen range of 266pg/mL to 666ng/mL in physiological medium (PBS). A strong correlation between the outputs of both devices was found in a critical range of frequencies (1-10Hz), and several TNF-α cytokine concentrations were properly discriminated. These results are very promising for the development of low-cost, portable and miniaturized electrochemical systems for point-of-care and environmental diagnosis.
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Affiliation(s)
- Raquel Pruna
- Departament d'Enginyeries, Electrònica, Universitat de Barcelona, C/ Martí i Franquès 1, E-08028 Barcelona, Spain.
| | - Francisco Palacio
- Departament d'Enginyeries, Electrònica, Universitat de Barcelona, C/ Martí i Franquès 1, E-08028 Barcelona, Spain
| | - Abdoullatif Baraket
- Université de Lyon 1, Institut des Sciences Analytiques, UMR 5280, CNRS, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - Nadia Zine
- Université de Lyon 1, Institut des Sciences Analytiques, UMR 5280, CNRS, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - Angelos Streklas
- Instituto de Microelectrónica de Barcelona, IMB-CNM (CSIC), Campus UAB, E-08193 Bellaterra, Spain
| | - Joan Bausells
- Instituto de Microelectrónica de Barcelona, IMB-CNM (CSIC), Campus UAB, E-08193 Bellaterra, Spain
| | - Abdelhamid Errachid
- Université de Lyon 1, Institut des Sciences Analytiques, UMR 5280, CNRS, 5 rue de la Doua, F-69100 Villeurbanne, France
| | - Manel López
- Departament d'Enginyeries, Electrònica, Universitat de Barcelona, C/ Martí i Franquès 1, E-08028 Barcelona, Spain
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Dai H, Lü W, Zuo X, Zhu Q, Pan C, Niu X, Liu J, Chen H, Chen X. A novel biosensor based on boronic acid functionalized metal-organic frameworks for the determination of hydrogen peroxide released from living cells. Biosens Bioelectron 2017; 95:131-137. [DOI: 10.1016/j.bios.2017.04.021] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 03/23/2017] [Accepted: 04/17/2017] [Indexed: 01/18/2023]
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Abstract
This article describes a new low-cost rapid microfabrication technology for high-density interconnects and passive devices on flexible substrates for sensing applications. Silver nanoparticles with an average size of 80 nm were used to create a conductive SU-8 mixture with a concentration of wt 25%. The patterned structures after hard baking have a sheet resistance of 11.17 Ω /□. This conductive SU-8 was used to pattern planar inductors, capacitors and interconnection lines on flexible Kapton film. The conductive SU-8 structures were used as a seed layer for a subsequent electroplating process to increase the conductivity of the devices. Examples of inductors, resistor-capacitor (RC) and inductor-capacitor (LC) circuits, interconnection lines and a near-field communication (NFC) antenna are presented as a demonstration. As an example of high-resolution miniaturization, we fabricated microinductors having line widths of 5 μ m. Mechanical bending tests were successful down to a 5 mm radius. To the best of the authors' knowledge, this is the first report of conductive SU-8 used to fabricate such planar devices and the first on flexible substrates. This is a proof of concept that this fabrication approach can be used as an alternative for microfabrication of planar passive devices on flexible substrates.
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Baraket A, Lee M, Zine N, Sigaud M, Bausells J, Errachid A. A fully integrated electrochemical biosensor platform fabrication process for cytokines detection. Biosens Bioelectron 2016; 93:170-175. [PMID: 27660015 DOI: 10.1016/j.bios.2016.09.023] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/01/2016] [Accepted: 09/06/2016] [Indexed: 01/31/2023]
Abstract
Interleukin-1b (IL-1b) and interleukin-10 (IL-10) biomarkers are one of many antigens that are secreted in acute stages of inflammation after left ventricle assisted device (LVAD) implantation for patients suffering from heart failure (HF). In the present study, we have developed a fully integrated electrochemical biosensor platform for cytokine detection at minute concentrations. Using eight gold working microelectrodes (WEs) the design will increase the sensitivity of detection, decrease the time of measurements, and allow a simultaneous detection of varying cytokine biomarkers. The biosensor platform was fabricated onto silicon substrates using silicon technology. Monoclonal antibodies (mAb) of anti-human IL-1b and anti-human IL-10 were electroaddressed onto the gold WEs through functionalization with 4-carboxymethyl aryl diazonium (CMA). Cyclic voltammetry (CV) was applied during the WE functionalization process to characterize the gold WE surface properties. Finally, electrochemical impedance spectroscopy (EIS) characterized the modified gold WE. The biosensor platform was highly sensitive to the corresponding cytokines and no interference with other cytokines was observed. Both cytokines: IL-10 and IL-1b were detected within the range of 1pgmL-1 to 15pgmL-1. The present electrochemical biosensor platform is very promising for multi-detection of biomolecules which can dramatically decrease the time of analysis. This can provide data to clinicians and doctors concerning cytokines secretion at minute concentrations and the prediction of the first signs of inflammation after LVAD implantation.
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Affiliation(s)
- Abdoullatif Baraket
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université Lyon 1, ENS Lyon -5, rue de la Doua, F-69100 Villeurbanne, France
| | - Michael Lee
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université Lyon 1, ENS Lyon -5, rue de la Doua, F-69100 Villeurbanne, France
| | - Nadia Zine
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université Lyon 1, ENS Lyon -5, rue de la Doua, F-69100 Villeurbanne, France
| | - Monique Sigaud
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université Lyon 1, ENS Lyon -5, rue de la Doua, F-69100 Villeurbanne, France
| | - Joan Bausells
- Centro Nacional de Microelectrónica (IMB-CSIC) Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Abdelhamid Errachid
- Université de Lyon, Institut des Sciences Analytiques, UMR 5280, CNRS, Université Lyon 1, ENS Lyon -5, rue de la Doua, F-69100 Villeurbanne, France.
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Shah PK, Hughes MR, Wang Y, Sims CE, Allbritton NL. Scalable synthesis of a biocompatible, transparent and superparamagnetic photoresist for microdevice fabrication. JOURNAL OF MICROMECHANICS AND MICROENGINEERING : STRUCTURES, DEVICES, AND SYSTEMS 2013; 23:10.1088/0960-1317/23/10/107002. [PMID: 24273390 PMCID: PMC3835212 DOI: 10.1088/0960-1317/23/10/107002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The functionalization of photoresists with colloids has enabled the development of novel active and passive components for microfabricated devices. Incorporation of colloidal particles often results in undesirable reductions in photolithographic fidelity and device transparency. We present a novel photoresist composite incorporating poly(methyl methacrylate-co-methacrylic acid) (PMMA/MMA), the epoxy resin 1002F and colloidal maghemite nanoparticles to produce a stable, transparent and biocompatible photoresist. The composite photoresist was prepared in a scalable fashion in batches up to 1 kg with the particles remaining dispersed during room-temperature storage for at least 6 months. Following photolithography to form films, the nanoparticle size remained well below that of visible-light wavelengths as demonstrated by electron microscopy. Structures fabricated from the photoresist by conventional photolithography displayed aspect ratios greater than ten. When grown on the photoresist, the metabolic rate of HeLa cells was unchanged relative to cells grown on glass. Primary murine mesenchymal stem cells also displayed a normal morphology on the resist surface. The ability to manipulate microstructures formed from the composite was demonstrated by magnetically collecting clonal colonies of HeLa cells from a micropallet array. The transparency, biocompatibility, scalable synthesis and superparamagnetic properties of the novel composite address key limitations of existing magnetic composites.
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Affiliation(s)
- P K Shah
- Department of Biomedical Engineering, University of North Carolina, Chapel Hill, NC 27599, USA and North Carolina State University, Raleigh, NC 27695, USA
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Fan H, Wang X, Jiao F, Zhang F, Wang Q, He P, Fang Y. Scanning Electrochemical Microscopy of DNA Hybridization on DNA Microarrays Enhanced by HRP-Modified SiO2 Nanoparticles. Anal Chem 2013; 85:6511-7. [DOI: 10.1021/ac4011155] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Huajun Fan
- Department
of Chemistry, East China Normal University, Shanghai 200241, P. R. China
| | - Xiaolan Wang
- Department
of Chemistry, East China Normal University, Shanghai 200241, P. R. China
| | - Fang Jiao
- Department
of Chemistry, East China Normal University, Shanghai 200241, P. R. China
| | - Fan Zhang
- Department
of Chemistry, East China Normal University, Shanghai 200241, P. R. China
| | - Qingjiang Wang
- Department
of Chemistry, East China Normal University, Shanghai 200241, P. R. China
| | - Pingang He
- Department
of Chemistry, East China Normal University, Shanghai 200241, P. R. China
| | - Yuzhi Fang
- Department
of Chemistry, East China Normal University, Shanghai 200241, P. R. China
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Ortega FJ, Bañuls MJ, Sanza FJ, Laguna MF, Holgado M, Casquel R, Barrios CA, López-Romero D, Maquieira Á, Puchades R. Development of a versatile biotinylated material based on SU-8. J Mater Chem B 2013; 1:2750-2756. [DOI: 10.1039/c3tb20323a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Peris E, Bañuls MJ, Puchades R, Maquieira Á. Photoattachment of thiolated DNA probes on SU-8 spin-coated Blu-ray disk surfaces for biosensing. J Mater Chem B 2013; 1:6245-6253. [DOI: 10.1039/c3tb21026j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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