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Biofuel cell as a power source for electronic contact lenses.

Falk, Magnus; Andoralov, Viktor; Blum, Zoltan; Sotres, Javier; Suyatin, Dmitry LU ; Ruzgas, Tautgirdas; Arnebrant, Thomas and Shleev, Sergey (2012) In Biosensors & Bioelectronics 37(1). p.38-45
Abstract
Here we present unequivocal experimental proof that microscale cofactor- and membrane-less, direct electron transfer based enzymatic fuel cells do produce significant amounts of electrical energy in human lachrymal liquid (tears). 100μm diameter gold wires, covered with 17nm gold nanoparticles, were used to fashion three-dimensional nanostructured microelectrodes, which were biomodified with Corynascus thermophilus cellobiose dehydrogenase and Myrothecium verrucaria bilirubin oxidase as anodic and cathodic bioelements, respectively. The following characteristics of miniature glucose/oxygen biodevices operating in human tears were registered: 0.57V open-circuit voltage, about 1μWcm(-2) maximum power density at a cell voltage of 0.5V, and... (More)
Here we present unequivocal experimental proof that microscale cofactor- and membrane-less, direct electron transfer based enzymatic fuel cells do produce significant amounts of electrical energy in human lachrymal liquid (tears). 100μm diameter gold wires, covered with 17nm gold nanoparticles, were used to fashion three-dimensional nanostructured microelectrodes, which were biomodified with Corynascus thermophilus cellobiose dehydrogenase and Myrothecium verrucaria bilirubin oxidase as anodic and cathodic bioelements, respectively. The following characteristics of miniature glucose/oxygen biodevices operating in human tears were registered: 0.57V open-circuit voltage, about 1μWcm(-2) maximum power density at a cell voltage of 0.5V, and more than 20h operational half-life. Theoretical calculations regarding the maximum recoverable electrical energy can be extracted from the biofuel and the biooxidant, glucose and molecular oxygen, each readily available in human lachrymal liquid, fully support our belief that biofuel cells can be used as electrical power sources for so called smart contact lenses. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Biosensors & Bioelectronics
volume
37
issue
1
pages
38 - 45
publisher
Elsevier
external identifiers
  • wos:000306209300007
  • pmid:22621980
  • scopus:84861732293
ISSN
1873-4235
DOI
10.1016/j.bios.2012.04.030
language
English
LU publication?
yes
id
347f4e0a-4fa8-4e81-9ea7-564210c20951 (old id 2608557)
date added to LUP
2012-06-13 09:58:36
date last changed
2017-11-19 03:54:56
@article{347f4e0a-4fa8-4e81-9ea7-564210c20951,
  abstract     = {Here we present unequivocal experimental proof that microscale cofactor- and membrane-less, direct electron transfer based enzymatic fuel cells do produce significant amounts of electrical energy in human lachrymal liquid (tears). 100μm diameter gold wires, covered with 17nm gold nanoparticles, were used to fashion three-dimensional nanostructured microelectrodes, which were biomodified with Corynascus thermophilus cellobiose dehydrogenase and Myrothecium verrucaria bilirubin oxidase as anodic and cathodic bioelements, respectively. The following characteristics of miniature glucose/oxygen biodevices operating in human tears were registered: 0.57V open-circuit voltage, about 1μWcm(-2) maximum power density at a cell voltage of 0.5V, and more than 20h operational half-life. Theoretical calculations regarding the maximum recoverable electrical energy can be extracted from the biofuel and the biooxidant, glucose and molecular oxygen, each readily available in human lachrymal liquid, fully support our belief that biofuel cells can be used as electrical power sources for so called smart contact lenses.},
  author       = {Falk, Magnus and Andoralov, Viktor and Blum, Zoltan and Sotres, Javier and Suyatin, Dmitry and Ruzgas, Tautgirdas and Arnebrant, Thomas and Shleev, Sergey},
  issn         = {1873-4235},
  language     = {eng},
  number       = {1},
  pages        = {38--45},
  publisher    = {Elsevier},
  series       = {Biosensors & Bioelectronics},
  title        = {Biofuel cell as a power source for electronic contact lenses.},
  url          = {http://dx.doi.org/10.1016/j.bios.2012.04.030},
  volume       = {37},
  year         = {2012},
}