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| Presentation | 2012-03-16 11:30 Electrical characteristics of needle-shaped carbon nanotube bundle electrodes Takahiro Yamakawa, Yuki Hayashida (Osaka Univ.), Sho Harabe (Kumamoto Univ.), Tadashi Kozuno (Osaka Univ.), Nobuki Murayama (Kumamoto Univ.), Hirotsugu Okuno, Tetsuya Yagi (Osaka Univ.)  MBE2011-139 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (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) |
| (in English) | Neural prosthesis / Neuro-electrode / Carbon nanotube bundle / Physiological experiment / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 482, MBE2011-139, pp. 171-174, March 2012. | |
| Paper # | MBE2011-139 | |
| Date of Issue | 2012-03-07 (MBE) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | MBE2011-139 |
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| Conference Information | |
| Committee | MBE NC |
| Conference Date | 2012-03-14 - 2012-03-16 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tamagawa University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | MBE |
| Conference Code | 2012-03-MBE-NC |
| Language | Japanese |
| 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 |
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| 1st Author's Name | Takahiro Yamakawa |
| 1st Author's Affiliation | Osaka University (Osaka Univ.) |
| 2nd Author's Name | Yuki Hayashida |
| 2nd Author's Affiliation | Osaka University (Osaka Univ.) |
| 3rd Author's Name | Sho Harabe |
| 3rd Author's Affiliation | Kumamoto University (Kumamoto Univ.) |
| 4th Author's Name | Tadashi Kozuno |
| 4th Author's Affiliation | Osaka University (Osaka Univ.) |
| 5th Author's Name | Nobuki Murayama |
| 5th Author's Affiliation | Kumamoto University (Kumamoto Univ.) |
| 6th Author's Name | Hirotsugu Okuno |
| 6th Author's Affiliation | Osaka University (Osaka Univ.) |
| 7th Author's Name | Tetsuya Yagi |
| 7th Author's Affiliation | Osaka University (Osaka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2012-03-16 11:30:00 |
| Presentation Time | 25 minutes |
| Registration for | MBE |
| Paper # | MBE2011-139 |
| Volume (vol) | vol.111 |
| Number (no) | no.482 |
| Page | pp.171-174 |
| #Pages | 4 |
| Date of Issue | 2012-03-07 (MBE) |
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