Transparent and flexible, nanostructured and mediatorless glucose/oxygen enzymatic fuel cells

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Transparent and flexible, nanostructured and mediatorless glucose/oxygen enzymatic fuel cells

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Publication Article, peer reviewed scientific
Title Transparent and flexible, nanostructured and mediatorless glucose/oxygen enzymatic fuel cells
Author(s) Pankratov, Dmitry ; Sundberg, Richard ; Sotres, Javier ; Maximov, Ivan ; Graczyk, Mariusz ; Suyatin, Dmitry B. ; Gonzalez-Arribas, Elena ; Lipkin, Aleksey ; Montelius, Lars ; Shleev, Sergey
Date 2015
English abstract
Here we detail transparent, flexible, nanostructured, membrane-less and mediator-free glucose/oxygen enzymatic fuel cells, which can be reproducibly fabricated with industrial scale throughput. The electrodes were built on a biocompatible flexible polymer, while nanoimprint lithography was used for their nanostructuring. The electrodes were covered with gold, their surfaces were visualised using scanning electron and atomic force microscopies, and they were also studied spectrophotometrically and electrochemically. The enzymatic fuel cells were fabricated following our previous reports on membrane-less and mediator-free biodevices in which cellobiose dehydrogenase and bilirubin oxidase were used as anodic and cathodic biocatalysts, respectively. The following average characteristics of transparent and flexible biodevices operating in glucose and chloride containing neutral buffers were registered: 0.63 V open-circuit voltage, and 0.6 mW cm-2 maximal power density at a cell voltage of 0.35 V. A transparent and flexible enzymatic fuel cell could still deliver at least 0.5 mW cm-2 after 12 h of continuous operation. Thus, such biodevices can potentially be used as self-powered biosensors or electric power sources for smart electronic contact lenses.
DOI http://dx.doi.org/10.1016/j.jpowsour.2015.06.041 (link to publisher's fulltext)
Publisher Elsevier
Host/Issue Journal of Power Sources;
Volume 294
ISSN 0378-7753
Pages 501-506
Language eng (iso)
Subject(s) Enzymatic fuel cell
Flexible
Transparent
Nanostructured
Mediatorless
Sciences
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/19839 (link to this page)

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