Miniature direct electron transfer based enzymatic fuel cell operating in human sweat and saliva

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Miniature direct electron transfer based enzymatic fuel cell operating in human sweat and saliva

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Publication Article, peer reviewed scientific
Title Miniature direct electron transfer based enzymatic fuel cell operating in human sweat and saliva
Author(s) Falk, Magnus ; Pankratov, Dmitry ; Lindh, Liselott ; Arnebrant, Thomas ; Shleev, Sergey
Date 2014
English abstract
We present data on operation of a miniature membrane-less, direct electron transfer based enzymatic fuel cell in human sweat and saliva. The enzymatic fuel cell was fabricated following our previous reports on miniature biofuel cells, utilizing gold nanoparticle modified gold microwires with immobilized cellobiose dehydrogenase and bilirubin oxidase. The following average characteristics of miniature glucose/oxygen biodevices operating in human sweat and saliva, respectively, were registered: 580 and 560 mV open-circuit voltage, 0.26 and 0.1 μW cm–2 power density at a cell voltage of 0.5 V, with up to ten times higher power output at 0.2 V. When saliva collected after meal ingestion was used, roughly a two-fold increase in power output was obtained, with a further two-fold increase by addition of 500 μM glucose. Likewise, the power generated in sweat at 0.5 V increased two-fold by addition of 500 μM glucose.
DOI http://dx.doi.org/10.1002/fuce.201400037 (link to publisher's fulltext)
Publisher Wiley
Host/Issue Fuel Cells;6
Volume 14
ISSN 1615-6854
Pages 1050-1056
Language eng (iso)
Subject(s) Enzymatic Fuel Cell
Microscale
Non-Invasive
Saliva
Sweat
Sciences
Research Subject Categories::NATURAL SCIENCES
Handle http://hdl.handle.net/2043/18129 (link to this page)

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