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Hughes G, Pemberton RM, Nicholas P, Hart JP. Fabrication of Miniaturised Screen-printed Glucose Biosensors, Using a Water-based Ink, and the Evaluation of their Electrochemical Behaviour. ELECTROANAL 2018. [DOI: 10.1002/elan.201800104] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- G. Hughes
- Centre for Research in Biosciences, Faculty of Health and Applied Sciences; University of the West of England, Bristol; Coldharbour Lane Bristol BS16 1QY
| | - R. M. Pemberton
- Centre for Research in Biosciences, Faculty of Health and Applied Sciences; University of the West of England, Bristol; Coldharbour Lane Bristol BS16 1QY
| | - P. Nicholas
- The Gwent Group, Gwent Electronic Materials; Gwent Group Ltd.; Monmouth House, Mamhilad Park Pontypool NP4 OHZ UK
| | - J. P. Hart
- Centre for Research in Biosciences, Faculty of Health and Applied Sciences; University of the West of England, Bristol; Coldharbour Lane Bristol BS16 1QY
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In Situ Analysis of a Silver Nanoparticle-Precipitating Shewanella Biofilm by Surface Enhanced Confocal Raman Microscopy. PLoS One 2015; 10:e0145871. [PMID: 26709923 PMCID: PMC4692441 DOI: 10.1371/journal.pone.0145871] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 12/09/2015] [Indexed: 11/19/2022] Open
Abstract
Shewanella oneidensis MR-1 is an electroactive bacterium, capable of reducing extracellular insoluble electron acceptors, making it important for both nutrient cycling in nature and microbial electrochemical technologies, such as microbial fuel cells and microbial electrosynthesis. When allowed to anaerobically colonize an Ag/AgCl solid interface, S. oneidensis has precipitated silver nanoparticles (AgNp), thus providing the means for a surface enhanced confocal Raman microscopy (SECRaM) investigation of its biofilm. The result is the in-situ chemical mapping of the biofilm as it developed over time, where the distribution of cytochromes, reduced and oxidized flavins, polysaccharides and phosphate in the undisturbed biofilm is monitored. Utilizing AgNp bio-produced by the bacteria colonizing the Ag/AgCl interface, we could perform SECRaM while avoiding the use of a patterned or roughened support or the introduction of noble metal salts and reducing agents. This new method will allow a spatially and temporally resolved chemical investigation not only of Shewanella biofilms at an insoluble electron acceptor, but also of other noble metal nanoparticle-precipitating bacteria in laboratory cultures or in complex microbial communities in their natural habitats.
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Kanyong P, Hughes G, Pemberton RM, Jackson SK, Hart JP. Amperometric Screen-Printed Galactose Biosensor for Cell Toxicity Applications. ANAL LETT 2015. [DOI: 10.1080/00032719.2015.1070166] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Mistry KK, Layek K, Mahapatra A, RoyChaudhuri C, Saha H. A review on amperometric-type immunosensors based on screen-printed electrodes. Analyst 2015; 139:2289-311. [PMID: 24678518 DOI: 10.1039/c3an02050a] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this brief review, we summarize the recent research activities involved in the development of amperometric-type immunosensors based on screen-printed electrodes (SPEs). We focus on the underlying principle involved in these types of sensors, their fabrication and electrode surface modification. We also discuss the various factors involved in the designing of such immunosensors and how they affect their performances. Finally we provide an insight into the drawbacks associated with these SPEs.
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Affiliation(s)
- Kalyan Kumar Mistry
- CSIR-Central Mechanical Engineering Research Institute, M. G. Avenue, Durgapur-713209, India.
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Pemberton RM, Cox T, Tuffin R, Drago GA, Griffiths J, Pittson R, Johnson G, Xu J, Sage IC, Davies R, Jackson SK, Kenna G, Luxton R, Hart JP. Fabrication and evaluation of a micro(bio)sensor array chip for multiple parallel measurements of important cell biomarkers. SENSORS 2014; 14:20519-32. [PMID: 25360580 PMCID: PMC4279497 DOI: 10.3390/s141120519] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 09/20/2014] [Accepted: 10/21/2014] [Indexed: 01/06/2023]
Abstract
This report describes the design and development of an integrated electrochemical cell culture monitoring system, based on enzyme-biosensors and chemical sensors, for monitoring indicators of mammalian cell metabolic status. MEMS technology was used to fabricate a microwell-format silicon platform including a thermometer, onto which chemical sensors (pH, O2) and screen-printed biosensors (glucose, lactate), were grafted/deposited. Microwells were formed over the fabricated sensors to give 5-well sensor strips which were interfaced with a multipotentiostat via a bespoke connector box interface. The operation of each sensor/biosensor type was examined individually, and examples of operating devices in five microwells in parallel, in either potentiometric (pH sensing) or amperometric (glucose biosensing) mode are shown. The performance characteristics of the sensors/biosensors indicate that the system could readily be applied to cell culture/toxicity studies.
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Affiliation(s)
- Roy M Pemberton
- Centre for Research in Biosciences, Faculty of Health and Life Sciences, University of the West of England, Bristol, BS16 1QY, UK.
| | - Timothy Cox
- QinetiQ Ltd., Malvern Technology Centre, Malvern, WR14 3PS, UK.
| | - Rachel Tuffin
- QinetiQ Ltd., Malvern Technology Centre, Malvern, WR14 3PS, UK.
| | - Guido A Drago
- Applied Enzyme Technology Ltd., Monmouth House, Mamhilad Park, Pontypool NP4 OHZ, UK.
| | - John Griffiths
- Uniscan Instruments Ltd., Sigma House, Burlow Rd., Buxton, Derbyshire SK17 9JB, UK.
| | - Robin Pittson
- Gwent Electronic Materials Ltd., Monmouth House, Mamhilad Park, Pontypool NP4 OHZ, UK.
| | - Graham Johnson
- Uniscan Instruments Ltd., Sigma House, Burlow Rd., Buxton, Derbyshire SK17 9JB, UK.
| | - Jinsheng Xu
- Centre for Research in Biosciences, Faculty of Health and Life Sciences, University of the West of England, Bristol, BS16 1QY, UK.
| | - Ian C Sage
- QinetiQ Ltd., Malvern Technology Centre, Malvern, WR14 3PS, UK.
| | - Rhodri Davies
- QinetiQ Ltd., Malvern Technology Centre, Malvern, WR14 3PS, UK.
| | - Simon K Jackson
- Centre for Research in Biosciences, Faculty of Health and Life Sciences, University of the West of England, Bristol, BS16 1QY, UK.
| | - Gerry Kenna
- AstraZeneca R&D, Alderley Park, Macclesfield, SK10 4TF, UK.
| | - Richard Luxton
- Institute of Biosensing Technology, University of the West of England, Bristol, BS16 1QY, UK.
| | - John P Hart
- Centre for Research in Biosciences, Faculty of Health and Life Sciences, University of the West of England, Bristol, BS16 1QY, UK.
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Vagin MY, Sekretaryova AN, Reategui RS, Lundstrom I, Winquist F, Eriksson M. Arrays of Screen-Printed Graphite Microband Electrodes as a Versatile Electroanalysis Platform. ChemElectroChem 2014. [DOI: 10.1002/celc.201300204] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ward KR, Lawrence NS, Hartshorne RS, Compton RG. The theory of cyclic voltammetry of electrochemically heterogeneous surfaces: comparison of different models for surface geometry and applications to highly ordered pyrolytic graphite. Phys Chem Chem Phys 2012; 14:7264-75. [DOI: 10.1039/c2cp40412e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Metters JP, Kadara RO, Banks CE. New directions in screen printed electroanalytical sensors: an overview of recent developments. Analyst 2011; 136:1067-76. [DOI: 10.1039/c0an00894j] [Citation(s) in RCA: 335] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Rawson FJ, Garrett DJ, Leech D, Downard AJ, Baronian KHR. Electron transfer from Proteus vulgaris to a covalently assembled, single walled carbon nanotube electrode functionalised with osmium bipyridine complex: application to a whole cell biosensor. Biosens Bioelectron 2010; 26:2383-9. [PMID: 21067910 DOI: 10.1016/j.bios.2010.10.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 10/10/2010] [Accepted: 10/11/2010] [Indexed: 10/18/2022]
Abstract
We report the fabrication and use of electrodes constructed from single walled carbon nanotubes (SWCNTs) chemically assembled on a carbon surface and functionalised with an osmium(II) bipyridine complex (Osbpy). The ability of the electrodes to transduce biologically generated currents from Proteus vulgaris has been established. Our investigations show that there are two contributions to the current: one from electroactive species secreted into solution and another from cell redox sites. The modified electrode can be used to monitor cell metabolism, thereby acting as a whole cell biosensor. The biosensor was used in a 1-h assay to investigate the toxicity of ethanol, sodium azide and the antibiotic ampicillin and gave quantitative data that were closely correlated with standard cell plate viability assays. The results provide proof of principle that the whole cell biosensor could be used for high throughput screening of antimicrobial activity. One of the modified electrodes was used for approximately 1000 measurements over four months demonstrating the robustness of the system.
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Affiliation(s)
- Frankie J Rawson
- Department of Chemistry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand.
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