| Presentation | 2012-03-16 Electrical characteristics of needle-shaped carbon nanotube bundle electrodes Takahiro YAMAKAWA, Yuki HAYASHIDA, Sho HARABE, Tadashi KOZUNO, Nobuki MURAYAMA, Hirotsugu OKUNO, Tetsuya YAGI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To explore the usability of the neuro-electrodes made of carbon nanotubes (CNT), we have recently developed needle-shaped CNT bundle electrodes with submicron diameters at the tip, and demonstrated that those electrodes are usable as intracellular stimulating electrodes in acutely dissociated neurons by means of electrophysiological experiments in vitro. In the present report, we tested if such a CNT bundle electrode can be fabricated as having enough mechanical strength for penetrating a neural tissue and electrical properties suitable for extracellular electrodes. The experiments have shown that the needle-shaped CNT bundles having the tip diameters of around one micron can be inserted into the slice preparation of mouse cortex without a significant deformation, and that the electrical impedance of those electrodes measured in physiological saline was around one mega-ohm at one kilo-hertz. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Neural prosthesis / Neuro-electrode / Carbon nanotube bundle / Physiological experiment |
| Paper # | MBE2011-139 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 2012/3/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | ME and Bio Cybernetics (MBE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Electrical characteristics of needle-shaped carbon nanotube bundle electrodes |
| Sub Title (in English) | |
| Keyword(1) | Neural prosthesis |
| Keyword(2) | Neuro-electrode |
| Keyword(3) | Carbon nanotube bundle |
| Keyword(4) | Physiological experiment |
| 1st Author's Name | Takahiro YAMAKAWA |
| 1st Author's Affiliation | Grad. Engineering, Osaka Univ.() |
| 2nd Author's Name | Yuki HAYASHIDA |
| 2nd Author's Affiliation | Grad. Engineering, Osaka Univ.:Grad. Science and Technology, Kumamoto Univ. |
| 3rd Author's Name | Sho HARABE |
| 3rd Author's Affiliation | Grad. Science and Technology, Kumamoto Univ. |
| 4th Author's Name | Tadashi KOZUNO |
| 4th Author's Affiliation | Grad. Engineering, Osaka Univ. |
| 5th Author's Name | Nobuki MURAYAMA |
| 5th Author's Affiliation | Grad. Science and Technology, Kumamoto Univ. |
| 6th Author's Name | Hirotsugu OKUNO |
| 6th Author's Affiliation | Grad. Engineering, Osaka Univ. |
| 7th Author's Name | Tetsuya YAGI |
| 7th Author's Affiliation | Grad. Engineering, Osaka Univ. |
| Date | 2012-03-16 |
| Paper # | MBE2011-139 |
| Volume (vol) | vol.111 |
| Number (no) | 482 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |