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Use of polymer coatings to enhance the response of redox-polymer-mediated electrodes

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dc.contributor.author Xiao, Xinxin
dc.contributor.author Ó Conghaile, Peter
dc.contributor.author Leech, Dónal
dc.contributor.author Magner, Edmond
dc.date.accessioned 2018-09-13T10:26:32Z
dc.date.issued 2018
dc.identifier.citation Xinxin Xiao, Peter Ó Conghaile, Dónal Leech, Edmond Magner; Use of polymer coatings to enhance the response of redox-polymer-mediated electrodes, ChemElectroChem 2018, DOI: 10.1002/celc.201800983 en_US
dc.identifier.uri http://hdl.handle.net/10344/7129
dc.description peer-reviewed en_US
dc.description.abstract The successful use of biosensors requires that the sensor can operate over abroad enough linear range that encompasses the physiological concentration of the substrate of interest. A polymer coating layer functioning as a mass transport barrier is typically used to expand the linear range of biosensors, with however, the concomitant disadvantage of a reduction in the response. Effects of a poly(acrylic acid) (PAA) coating layer on the response of a glassy carbon electrode modified with an Os redox polymer and lactate oxidase (LOx) were evaluated. The coating layer resulted in an expanded linear range from 7 to 15 mM, doubled catalytic response towards the oxidation of 35 mM lactate and improved operational stability. Detailed voltammetry studies revealed that the coating layer can improve the amount of the redox polymer that is available as a mediator, leading to the increased catalytic response at high concentrations of substrate. Similar results were obtained with other polymer layers (polystyrene sulfonate (PSS), poly(diallyldimethyl-ammonium chloride) (PDADMAC) and poly(3,4-ethylenedioxythiophene) (PEDOT)) and with the enzymes, glucose oxidase and bilirubin oxidase demonstrating the general nature of the method. en_US
dc.language.iso eng en_US
dc.publisher John Wiley & Sons Ltd en_US
dc.relation 607793 en_US
dc.relation.ispartofseries ChemElectroChem; 6 (5), pp. 1344-1349
dc.relation.uri https://doi.org/10.1002/celc.201800983
dc.rights This is the peer reviewed version of the following article:Use of polymer coatings to enhance the response of redox-polymer-mediated electrodes, Xinxin Xiao, Peter Ó Conghaile, Leech, Dónal, Magner, Edmond, 2018 ChemElectroChem which has been published in final form at http://dx.doi.org/10.1002/celc.201800983 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. http://olabout.wiley.com/WileyCDA/Section/id-828039.html#terms
dc.subject biofuel cell en_US
dc.subject osmium polymer en_US
dc.subject lactate oxidase en_US
dc.subject poly(acrylic acid) en_US
dc.subject bioanode en_US
dc.title Use of polymer coatings to enhance the response of redox-polymer-mediated electrodes en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1002/celc.201800983
dc.contributor.sponsor Government of Ireland Postgraduate Scholarship en_US
dc.contributor.sponsor ERC en_US
dc.relation.projectid 607793 en_US
dc.relation.projectid GOIPG/2014/659 en_US
dc.date.embargoEndDate 2019-08-30
dc.embargo.terms 2019-08-30 en_US
dc.rights.accessrights info:eu-repo/semantics/OpenAccess en_US
dc.internal.rssid 2894753
dc.internal.rssid 2950480


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