Bio supramolecule has fascinating features such as size uniformity or self-assembling ability. Various kinds of self-assembled supramolecules designed based on the DNA information are fabricated on semiconductor substrates one to three dimensionally to develop new functionality. New functional devices such as switch, memory, bio sensor and MEMS sensors will be proposed based on the new concept as well as complete understanding of self-assembling process of new materials.

Frontier research on biological cell/electronics integrated devices, in which biological elements (cells and neurons) and electronic circuits (VLSI) are integrated, is proposed by using Ion image sensors technology. By combining neurons and Ion image sensors, we can realize devices that have a learning capability (flexible functions) and electronic devices with integrated parts having biological functions.

The interface between biomolecules and device materials is one of the most important subject for both in-vitro and in-vivo biodevices. We are planning to study the potential use of microelectrode techniques as powerful tool for controlling bionic interfaces: special control of cell adhesion / growth; immobilization of proteins within a microfluidic device just prior to analysis; in-situ microcircuit formation with conducting polymers during cell cultivation. These electrochemical techniques will be applied to develop novel biohybrid devices including enzymatic biofuel cells.

We would develop the fundamental fabrication process of nanotube devices and integration techniques with different materials to realize a CNT-MEMS industry in the future.We would combine the bottom-up and top-down techniques to self-assemble the nanotubes to realize CNT-MEMS devices with controlled shape and position, and designed functions.

We will develop electronics using the state of the art top-down nano-technology on bottom-up self-organized low-cost graphite sheets with atomically flat surfaces that posses various advantages such as high thermal conductivity, high electrical conductivity, and flexibility. We will fabricate new functional semiconductor device system by the combination of high intensity LEDs, high speed electron devices, and high efficiency solar cells with this technique.

Electrostatic interaction between electrons and biomolecules is investigated using biotransistors with biofunctional gate structure. By controlling interfaces among biomaterials, organic molecules and semiconductor devices, biomolecular recognition and cell function are detected without labeling materials and non-invasively. Interdisciplinary field between biotechnology and electronics will be explored and developed through investigation on principles of biotransistors.