Design, fabrication and characterisation of components for microfluidic enzymatic biofuel cells

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dc.contributor.advisor Herzog, Grégoire en
dc.contributor.advisor Ogurtsov, Vladimir I. en Żygowska, Monika 2015-08-17T10:27:01Z 2015-08-17T10:27:01Z 2014 2014
dc.identifier.citation Żygowska, M. 2014. Design, fabrication and characterisation of components for microfluidic enzymatic biofuel cells. PhD Thesis, University College Cork. en
dc.identifier.endpage 419
dc.description.abstract The concept of a biofuel cell takes inspiration from the natural capability of biological systems to catalyse the conversion of organic matter with a subsequent release of electrical energy. Enzymatic biofuel cells are intended to mimic the processes occurring in nature in a more controlled and efficient manner. Traditional fuel cells rely on the use of toxic catalysts and are often not easily miniaturizable making them unsuitable as implantable power sources. Biofuel cells however use highly selective protein catalysts and renewable fuels. As energy consumption becomes a global issue, they emerge as important tools for energy generation. The microfluidic platforms developed are intended to maximize the amount of electrical energy extracted from renewable fuels which are naturally abundant in the environment and in biological fluids. Combining microfabrication processes, chemical modification and biological surface patterning these devices are promising candidates for micro-power sources for future life science and electronic applications. This thesis considered four main aspects of a biofuel cell research. Firstly, concept of a miniature compartmentalized enzymatic biofuel cell utilizing simple fuels and operating in static conditions is verified and proves the feasibility of enzyme catalysis in energy conversion processes. Secondly, electrode and microfluidic channel study was performed through theoretical investigations of the flow and catalytic reactions which also improved understanding of the enzyme kinetics in the cell. Next, microfluidic devices were fabricated from cost-effective and disposable polymer materials, using the state-of-the-art micro-processing technologies. Integration of the individual components is difficult and multiple techniques to overcome these problems have been investigated. Electrochemical characterization of gold electrodes modified with Nanoporous Gold Structures is also performed. Finally, two strategies for enzyme patterning and encapsulation are discussed. Several protein catalysts have been effectively immobilized on the surface of commercial and microfabricated electrodes by electrochemically assisted deposition in sol-gel and poly-(o-phenylenediamine) polymer matrices and characterised with confirmed catalytic activity. en
dc.description.sponsorship Environmental Protection Agency (EPA STRIVE 2009-ET-MS-10-S2) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher University College Cork en
dc.rights © 2014, Monika Żygowska. en
dc.rights.uri en
dc.subject Microfluidic enzymatic biofuel cell en
dc.subject Microfluidic en
dc.subject Enzyme en
dc.subject Biofuel cell en
dc.title Design, fabrication and characterisation of components for microfluidic enzymatic biofuel cells en
dc.type Doctoral thesis en
dc.type.qualificationlevel Doctoral en
dc.type.qualificationname PhD (Science) en
dc.internal.availability Full text available en No embargo required en
dc.description.version Accepted Version
dc.contributor.funder Environmental Protection Agency en
dc.description.status Not peer reviewed en Chemistry en
dc.check.type No Embargo Required
dc.check.reason No embargo required en
dc.check.opt-out Not applicable en
dc.thesis.opt-out false
dc.check.embargoformat Not applicable en
dc.internal.conferring Autumn Conferring 2014

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© 2014, Monika Żygowska. Except where otherwise noted, this item's license is described as © 2014, Monika Żygowska.
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