Biofuel cells implanted into the living body as power source for other implantable devices. Optimization study. - Project - Bridge of Knowledge

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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

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