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Biofuel cells implanted into the living body as power source for other implantable devices. Optimization study.
The direct electrical connection of laccase on the electrode surface is a key feature in the design of efficient and
stable biocathodes. However, laccase can perform a direct electron transfer only when it is in the preferred
orientation toward the electrode. Here we report the investigation of the orientation of laccase from white rot
fungus on multi-walled carbon nanotube surface modified with a naphthalene group. Naphthylated multi wall
carbon nanotubes were synthesized and the kinetics of laccase from white rot fungus adsorption and its direct
electro-catalytic activity toward oxygen reduction was investigated by QCM and electrochemical techniques.
Compared to pristine multi-walled carbon nanotubes laccase shows a high affinity to be adsorbed onto the
surface of naphthylated carbon nanotubes at a very fast rate. The subsequent wiring to the naphthylated multiwalled
carbon nanotubes is accompanied by a reorientation and arrangement of adsorbed laccase to create a
composite biocathode that exhibits a high-performance for oxygen reduction by direct electron transfer with
maximum current densities of 3 mA cm 2.
Details
- Project's acronym:
- Bioogniwa
- Financial Program Name:
- INNY
- Organization:
- Narodowa Agencja Wymiany Akademickiej
- Agreement:
- z dnia 2019-01-14
- Realisation period:
- 2019-02-01 - 2020-12-31
- Research team leader:
- dr hab. inż. Kamila Sadowska
- Realised in:
- Faculty of Applied Physics and Mathematics
- External institutions
participating in project: -
- Laboratoire TIMC-IMAG/CNRS/UGA (France)
- Request type:
- Different
- Domestic:
- Domestic project
- Verified by:
- Gdańsk University of Technology
Papers associated with that project
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Catalog Projects
Year 2020
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High catalytic performance of laccase wired to naphthylated multiwall carbon nanotubes
PublicationThe direct electrical connection of laccase on the electrode surface is a key feature in the design of efficient and stable biocathodes. However, laccases can perform a direct electron transfer only when they are in the preferable orientation toward the electrode. Here we report the investigation of the orientation of Laccase from Amano on multi-walled carbon nanotube surface modified with naphthalene group. Naphthylated multi...
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