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Bioelectrochemistry Lab
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The lab connects enzymes and electrodes to build devices for power generation and measurement.
AboutAbout the lab
Combining biology and electricity to open up new devices.
The Bioelectrochemistry Lab studies, from an electrochemical perspective, how oxidoreductases, the enzymes responsible for the flow of electrons and ions in living organisms, work.
The lab develops biofuel cells that use enzymes to generate electricity from sugars and other substances, as well as biosensors.
As electrodes, the lab uses materials such as porous carbon with pores controlled at the nanometer scale, and also studies how to make enzymes work well on the electrode surface.
The lab is introduced on its website under the name "Tsujimura Lab," and it also carries out joint research with companies, universities, and research institutions in Japan and abroad.
Key terms
- Biofuel cell
- A cell that generates electricity using sugars or other substances as fuel and enzymes as electrode catalysts. Fuel is oxidized at the anode and oxygen is reduced at the cathode
- Oxidoreductase
- An enzyme that catalyzes electron transfer between a reducing agent and an oxidizing agent. It is deeply involved in processes such as energy conversion in living organisms
- Porous carbon
- A carbon material with pores on the nanometer scale. The pore structure is controlled for use in enzyme electrodes
NewsLab news
An international student's paper was accepted in Biomass and Bioenergy
A doctoral student's paper was accepted in Electrochemistry
A paper on the electrode reaction of enzymes inside MOFs was accepted in Biosensors and Bioelectronics
A master's student received the Outstanding Student Poster Presentation Award at the BES International Workshop
A doctoral student received the Excellent Presentation Award at the Autumn Meeting of the Electrochemical Society of Japan
ResearchResearch themes
The lab uses electrochemical methods to study how enzymes responsible for redox reactions in living organisms work. It applies technology for controlling the flow of electrons and ions to biodevices that are driven by electricity or generate electricity, aiming at effective use in the fields of "Environment and Energy," "Health and Medicine," and "Safety and Security."
*Illustrative imageBiofuel cells
The lab develops cells that generate electricity using sugars or alcohols as fuel and enzymes as electrode catalysts. In addition to developing enzymes and electrode materials suited to such cells, it is advancing wearable and miniature cells and fabrication by printing.
*Illustrative imageBiosensors
The lab studies electrochemical biosensors that combine enzyme reactions with electrode reactions and are expected to be applied to detecting components in blood and food. It optimizes the detection mechanism and also explores methods different from the common amperometric (current-detection) type.
*Illustrative imageOxidoreductases
The lab studies enzymes that catalyze electron transfer between electron donors and electron acceptors, aiming at application in electrochemical devices. Focusing on the relationship between driving force and rate in the reactions of new enzymes, it also improves methods for evaluating redox potential.
*Illustrative imageElectron exchange between enzymes and electrodes
Efficiently coupling enzyme reactions with electrode reactions is the key to higher power output in cells and higher sensitivity in sensors. Building on elucidation of the electron transfer mechanism, the lab develops substances that mediate electron exchange and improves methods for modifying enzymes.
MembersFaculty
The members of the Bioelectrochemistry Lab consist of faculty members, JSPS International Research Fellows, doctoral, master's, and undergraduate students, non-degree research students, administrative assistants, and technical assistants.As of 2026
- ProfessorSeiya Tsujimura
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “U.S. Department of Energy - Science - )” U.S. Department of Energy from United States / Public domain (cropped)
- Biofuel cells: “Fruit battery, apple, closeup” Marcin Sochacki (Wanted) / CC BY 3.0 (cropped)
- Biosensors: “(20250417) Blood glucose meter 09” Roy Zuo / CC BY-SA 4.0 (cropped)
- Oxidoreductases: “077-GlucoseOxidase-1gpe-composite” 作者不詳 / Public domain (cropped)
- Electron exchange between enzymes and electrodes: “Fast-scan cyclic voltammetry to measure dopamine” Trina36 / CC BY-SA 4.0 (cropped)
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