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A Nernstian Biosupercapacitor
We propose the very first “Nernstian biosupercapacitor”, a biodevice based on only one redox polymer: poly(vinyl imidazole‐co‐allylamine)[Os(bpy)(2)Cl], and two biocatalysts. At the bioanode PQQ‐dependent glucose dehydrogenase reduces the Os(3+) moieties at the polymer to Os(2+) shifting the Nernst...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5132130/ https://www.ncbi.nlm.nih.gov/pubmed/27805779 http://dx.doi.org/10.1002/anie.201607144 |
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author | Pankratov, Dmitry Conzuelo, Felipe Pinyou, Piyanut Alsaoub, Sabine Schuhmann, Wolfgang Shleev, Sergey |
author_facet | Pankratov, Dmitry Conzuelo, Felipe Pinyou, Piyanut Alsaoub, Sabine Schuhmann, Wolfgang Shleev, Sergey |
author_sort | Pankratov, Dmitry |
collection | PubMed |
description | We propose the very first “Nernstian biosupercapacitor”, a biodevice based on only one redox polymer: poly(vinyl imidazole‐co‐allylamine)[Os(bpy)(2)Cl], and two biocatalysts. At the bioanode PQQ‐dependent glucose dehydrogenase reduces the Os(3+) moieties at the polymer to Os(2+) shifting the Nernst potential of the Os(3+)/Os(2+) redox couple to negative values. Concomitantly, at the biocathode the reduction of O(2) by means of bilirubin oxidase embedded in the same redox polymer leads to the oxidation of Os(2+) to Os(3+) shifting the Nernst potential to higher values. Despite the use of just one redox polymer an open circuit voltage of more than 0.45 V was obtained during charging and the charge is stored in the redox polymer at both the bioanode and the biocathode. By connecting both electrodes via a predefined resistor a high power density is obtained for a short time exceeding the steady state power of a corresponding biofuel cell by a factor of 8. |
format | Online Article Text |
id | pubmed-5132130 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-51321302016-12-02 A Nernstian Biosupercapacitor Pankratov, Dmitry Conzuelo, Felipe Pinyou, Piyanut Alsaoub, Sabine Schuhmann, Wolfgang Shleev, Sergey Angew Chem Int Ed Engl Communications We propose the very first “Nernstian biosupercapacitor”, a biodevice based on only one redox polymer: poly(vinyl imidazole‐co‐allylamine)[Os(bpy)(2)Cl], and two biocatalysts. At the bioanode PQQ‐dependent glucose dehydrogenase reduces the Os(3+) moieties at the polymer to Os(2+) shifting the Nernst potential of the Os(3+)/Os(2+) redox couple to negative values. Concomitantly, at the biocathode the reduction of O(2) by means of bilirubin oxidase embedded in the same redox polymer leads to the oxidation of Os(2+) to Os(3+) shifting the Nernst potential to higher values. Despite the use of just one redox polymer an open circuit voltage of more than 0.45 V was obtained during charging and the charge is stored in the redox polymer at both the bioanode and the biocathode. By connecting both electrodes via a predefined resistor a high power density is obtained for a short time exceeding the steady state power of a corresponding biofuel cell by a factor of 8. John Wiley and Sons Inc. 2016-11-02 2016-12-05 /pmc/articles/PMC5132130/ /pubmed/27805779 http://dx.doi.org/10.1002/anie.201607144 Text en © 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs (http://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
spellingShingle | Communications Pankratov, Dmitry Conzuelo, Felipe Pinyou, Piyanut Alsaoub, Sabine Schuhmann, Wolfgang Shleev, Sergey A Nernstian Biosupercapacitor |
title | A Nernstian Biosupercapacitor |
title_full | A Nernstian Biosupercapacitor |
title_fullStr | A Nernstian Biosupercapacitor |
title_full_unstemmed | A Nernstian Biosupercapacitor |
title_short | A Nernstian Biosupercapacitor |
title_sort | nernstian biosupercapacitor |
topic | Communications |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5132130/ https://www.ncbi.nlm.nih.gov/pubmed/27805779 http://dx.doi.org/10.1002/anie.201607144 |
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