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Research Objective
Our aims are to build up the next generation of optical bio-photonic devices and the related technologies, which enable the parallel processing of sensing, imaging, and recording based on optics. In particular, we develop new materials such as organic/inorganic molecules and nanoparticles for immobilization onto the sensing interfaces of the bio-photonic devices, techniques for micro/nano-patterning, evaluation methods with supersensitive and high-spatial resolution, and new biosensors combined with the new materials and techniques.
Activities
1) Optical detection type chemical biochip: biosensors and biochips are
developing by a combination of the fluorescence detection method and the
surface plasmon resonance method. By the use of a formation technique of
self-assembled monolayer, the biosensors and biochips have surfaces with
molecular recognition function.
2) Micro- and nano-patterning: advanced ultra fine pattern fabrication is in progress by the microcontact printing method, pen-type lithography method, and several surface modification technique.
3) New optical information storage method based on photoinduced phenomena: We investigate the feasibility of new high-density optical storage method and new materials. Especially we expand the techniques for the optical storage using azobenzene copolymers, which show the photoinduced phenomena such as surface relief, birefringence, and chirality.
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Fig. 1 A prototype of fluorescent label-free microarray fabricated by microcontact
printing method
Fig. 2 A demonstration of rewritable hologram memory of an azobenzene copolymer
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