Membraneless glucose/O2 microfluidic enzymatic biofuel cell using pyrolyzed photoresist film electrodes
| Autor: | David Sánchez-Molas, Fabien Giroud, F. Javier del Campo, Juan Pablo Esquivel, Neus Sabaté, Maria José González-Guerrero, Shelley D. Minteer, Philippe Godignon, Francesc Xavier Muñoz |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Bioelectric Energy Sources Biomedical Engineering Bioengineering Nanotechnology Photoresist Biochemistry law.invention Glucose Oxidase chemistry.chemical_compound law Nafion Glucose oxidase Enzymatic biofuel cell Electrodes Trametes biology Open-circuit voltage Laccase Electrochemical Techniques Equipment Design General Chemistry Microfluidic Analytical Techniques Enzymes Immobilized Cathode Anode Oxygen Glucose Chemical engineering chemistry Electrode biology.protein Aspergillus niger |
| Zdroj: | Lab on a Chip. 13:2972 |
| ISSN: | 1473-0189 1473-0197 |
| DOI: | 10.1039/c3lc50319d |
| Popis: | Biofuel cells typically yield lower power and are more difficult to fabricate than conventional fuel cells using inorganic catalysts. This work presents a glucose/O2 microfluidic biofuel cell (MBFC) featuring pyrolyzed photoresist film (PPF) electrodes made on silicon wafers using a rapid thermal process, and subsequently encapsulated by rapid prototyping techniques into a double-Y-shaped microchannel made entirely of plastic. A ferrocenium-based polyethyleneimine polymer linked to glucose oxidase (GOx/Fc-C6-LPEI) was used in the anode, while the cathode contained a mixture of laccase, anthracene-modified multi-walled carbon nanotubes, and tetrabutylammonium bromide-modified Nafion (MWCNTs/laccase/TBAB-Nafion). The cell performance was studied under different flow-rates, obtaining a maximum open circuit voltage of 0.54 ± 0.04 V and a maximum current density of 290 ± 28 μA cm(-2) at room temperature under a flow rate of 70 μL min(-1) representing a maximum power density of 64 ± 5 μW cm(-2). Although there is room for improvement, this is the best performance reported to date for a bioelectrode-based microfluidic enzymatic biofuel cell, and its materials and fabrication are amenable to mass production. |
| Databáze: | OpenAIRE |
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