| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Research Abstract |
Conventional brain wave electrodes are made from Ag/AgCl. Ag/AgCl disk electrodes block X-ray and cause white lines to radiate out from the electrode in an X-ray computed tomography (CT) image. We therefore developed new brain wave electrodes using multi-wall carbon nanotube-dispersed PMMA thin film that can detect an Electroencephalogram (EEG) without radiological shadow of the electrode. It is found that the detection sensitivity of the multi-wall carbon nanotube-dispersed electrode was greater than that of Ag/AgCl disk electrodes. Thus, concurrent use of X-ray CT, MRI and brain wave electrode is possible.
Volume resistivity of MWNT-dispersed PMMA thin film is higher than that of Ag/AgCl disk electrode, but brain wave was obtained clearly using its thin film electrode. This mechanism was elucidated. On the other hand, we developed new paste-free brain wave electrodes using multi-wall carbon nanotube-dispersed PMMA thin film.
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