Mediated enzyme electrodes for biological fuel cell and biosensor applications

Susan Boland*, Paul Kavanagh, Dónal Leech

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Citations (Scopus)

Abstract

Integration of enzymes, redox mediators and high surface area materials to provide bioelectrochemical platforms capable of efficiently transferring electrons between chemicals and electrodes is a dynamic and rapidly expanding research area. These bioelectrochemical reactions are enabled by designing efficient mediated electron transfer processes between selected enzymes and electrode materials. Targeted synthesis of a library of osmium based redox mediator complexes possessing a range of redox potentials is presented whereby these mediators are designed to possess the dual function of mediation and covalent immobilization. In addition to designing inbuilt immobilization strategies for mediators, anchoring a support to surfaces can improve the stability of an enzyme/mediator layer compared to physisorbed films. An overview of some of the strategies we have adopted towards the fabrication of these anchored redox active biocatalytic films on supported pre-functionalized electrodes is presented.

Original languageEnglish
Title of host publicationECS Transactions - Biological Fuel Cells 3
Pages77-87
Number of pages11
Volume13
Edition21
DOIs
Publication statusPublished - 2008
EventBiological Fuel Cells 3 - 213th Meeting of the Electrochemical Society - Phoenix, AZ, United States
Duration: 18 May 200823 May 2008

Conference

ConferenceBiological Fuel Cells 3 - 213th Meeting of the Electrochemical Society
CountryUnited States
CityPhoenix, AZ
Period18/05/200823/05/2008

Fingerprint

Biological fuel cells
Enzyme electrodes
Biosensors
Enzymes
Electrodes
Osmium
Electrons
Fabrication
Oxidation-Reduction

Cite this

Boland, S., Kavanagh, P., & Leech, D. (2008). Mediated enzyme electrodes for biological fuel cell and biosensor applications. In ECS Transactions - Biological Fuel Cells 3 (21 ed., Vol. 13, pp. 77-87) https://doi.org/10.1149/1.3036213
Boland, Susan ; Kavanagh, Paul ; Leech, Dónal. / Mediated enzyme electrodes for biological fuel cell and biosensor applications. ECS Transactions - Biological Fuel Cells 3. Vol. 13 21. ed. 2008. pp. 77-87
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Boland, S, Kavanagh, P & Leech, D 2008, Mediated enzyme electrodes for biological fuel cell and biosensor applications. in ECS Transactions - Biological Fuel Cells 3. 21 edn, vol. 13, pp. 77-87, Biological Fuel Cells 3 - 213th Meeting of the Electrochemical Society, Phoenix, AZ, United States, 18/05/2008. https://doi.org/10.1149/1.3036213

Mediated enzyme electrodes for biological fuel cell and biosensor applications. / Boland, Susan; Kavanagh, Paul; Leech, Dónal.

ECS Transactions - Biological Fuel Cells 3. Vol. 13 21. ed. 2008. p. 77-87.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - Integration of enzymes, redox mediators and high surface area materials to provide bioelectrochemical platforms capable of efficiently transferring electrons between chemicals and electrodes is a dynamic and rapidly expanding research area. These bioelectrochemical reactions are enabled by designing efficient mediated electron transfer processes between selected enzymes and electrode materials. Targeted synthesis of a library of osmium based redox mediator complexes possessing a range of redox potentials is presented whereby these mediators are designed to possess the dual function of mediation and covalent immobilization. In addition to designing inbuilt immobilization strategies for mediators, anchoring a support to surfaces can improve the stability of an enzyme/mediator layer compared to physisorbed films. An overview of some of the strategies we have adopted towards the fabrication of these anchored redox active biocatalytic films on supported pre-functionalized electrodes is presented.

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Boland S, Kavanagh P, Leech D. Mediated enzyme electrodes for biological fuel cell and biosensor applications. In ECS Transactions - Biological Fuel Cells 3. 21 ed. Vol. 13. 2008. p. 77-87 https://doi.org/10.1149/1.3036213