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Cellobiose dehydrogenase in biofuel cells
Stefan Scheiblbrandner1, Florian Csarman1, Roland Ludwig1
1Biocatalysis and Biosensing Laboratory, Department of Food Science and Technology, BOKU-University of Natural Resources and Life Sciences, Vienna, Muthgasse 11, Vienna, 1190, Austria.
Current Opinion in Biotechnology
|September 5, 2021
Summary
Cellobiose dehydrogenase, a versatile enzyme, powers enzymatic biofuel cells by converting carbohydrates into electricity. This technology enables self-powered biosensors and wireless device connectivity.
Area of Science:
- Biotechnology
- Electrochemistry
- Enzyme catalysis
Background:
- Enzymatic biofuel cells use oxidoreductases for efficient energy conversion.
- Cellobiose dehydrogenase (CDH) is a robust enzyme capable of converting various carbohydrates.
Purpose of the Study:
- Investigate CDH as a versatile bioelectrocatalyst for enzymatic biofuel cell anodes.
- Explore electrode modifications for enhanced CDH performance.
Main Methods:
- Utilized cellobiose dehydrogenase as the anode catalyst.
- Developed electrode modifications for direct electron transfer and mediator-assisted electron transfer.
- Integrated modified electrodes into biofuel cell and biosupercapacitor designs.
Main Results:
- Demonstrated CDH's ability to convert diverse carbohydrates into electrical energy.
- Achieved efficient electron transfer to the anode via direct electron transfer and redox mediators.
- Successfully powered small electronic devices and enabled wireless data transmission.
Conclusions:
- Cellobiose dehydrogenase is a highly versatile and robust bioelectrocatalyst for enzymatic biofuel cells.
- Electrode modifications enhance CDH performance, enabling practical applications.
- Enzymatic biofuel cells powered by CDH can drive self-powered biosensors and wireless systems.
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