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Organization / Research

Yoshinobu Laboratory


[PHOTO.1] Tatsuo YOSHINOBU, Professor [PHOTO.2] Ko-ichiro MIYAMOTO, Associate Professor
[PHOTO.3] Carl Frederik WERNER, Assistant Professor

The Laboratory for Biomedical Electronics is engaged in the study of functional interfaces between semiconductor electronics and biological substances.

Development of Chemical Imaging Sensor

The chemical imaging sensor is a semiconductor-based sensor that can visualize the spatial distribution of ions in the electrolytic solution in contact with the sensing surface. By measuring the photocurrent induced by a scanning laser beam, two-dimensional maps of pH and/or various ions can be obtained. Possible applications of this sensor include visualization of electrochemical systems, measurement of metabolic processes in biological systems and potentiometric sensing in microfluidic devices.

AFM Nanolithography and its Application to Micropatterning of Biomolecules

The atomic force microscope (AFM) is becoming a popular tool not only for imaging but also for fabrication of nanostructures on the surface. Based on the AFM nanolithography, we are developing technologies for micropatterning of biomolecules on silicon. For example, line patterns of protein molecules as thin as 50 nm and DNA wire structures connecting oxide dots on silicon are feasible.

Group of Electrical Engineering, Communication Engineering,
Electronic Engineering, and Information Engineering, Tohoku University
6-6-05, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8579, Japan
TEL : 022-795-7186 (Japanese Only)
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