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Bioelectronics Lab
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The lab studies chemical imaging sensors that visualize the distribution of ion concentrations as images.
AboutAbout the lab
Chemical imaging sensors that "see ions"
Aiming to fuse semiconductor electronics with biological functions, the Yoshinobu Lab studies chemical imaging sensors that turn the distribution of ion concentrations into images.
An ordinary image sensor is a sensor that "sees light," whereas a chemical imaging sensor is a sensor that "sees ions."
In addition to images of pH (hydrogen ion concentration), the sensors can measure the distribution of various ions, and applications include analysis of electrochemical systems, detection of live bacteria, observation of cells, and visualization of the inside of microfluidic devices.
On the lab's website, the lab is introduced under the name "Yoshinobu-Miyamoto Lab."
Key terms
- Chemical imaging sensor
- A sensor that measures the distribution of ion concentrations as an image
- Depletion layer
- A layer in a semiconductor where there are few particles that carry electric charge
- Microfluidic device
- A small device that handles small amounts of liquid by flowing it through tiny channels
NewsLab news
A paper by doctoral students and others was published in Sensors and Actuators B
A doctoral student received the Tohoku University Prof. Fujino Memorial Encouragement Award
A paper by a faculty member was published online in ISIJ International
A paper by the Assistant Professor was published online in IEEE Sensors Letters
A master's student received an Excellent Presentation Award at a research meeting of the Tohoku Chapter of the Japan Society of Applied Physics
ResearchResearch themes
The lab conducts research aimed at fusing semiconductor electronics with biological functions. Its core work is developing chemical imaging sensors that image the spatial distribution of ion concentrations.
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MembersFaculty
The Yoshinobu Lab consists of faculty members, cooperating faculty members, and students.As of 2026
- ProfessorTatsuo Yoshinobu
- Assistant ProfessorAnh Igarashi
- Associate ProfessorYuanyuan Guo
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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: “Wafer - 3” Windell Oskay / CC BY 2.0 (cropped)
- Chemical imaging sensors that see ions: “Atmel-avr-atusb162-HD” ZeptoBars / CC BY 3.0 (cropped)
- Related lab (Future Electronics Foundation Creation [Kuroda] Lab): “FUGA 18 Retina” Mister rf / CC BY-SA 4.0 (cropped)
- Related lab (Pathological Nanosystems Biomedical Engineering Lab): “Confocal Microscope (NIH BioArt 86)” Courtesy of NIAID Ryan Kissinger / Public domain (cropped)
- Related lab (Yamamoto Lab): “Beamline-self-portrait” Warrenmck / CC BY-SA 4.0 (cropped)
- Related lab (Bioelectromagnetic Information [Ishiyama-Goto] Lab): “George Simpson magnetometer” Herbert Ponting / Public domain (cropped)
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