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Paper Abstract and Keywords
Presentation 2017-11-25 10:50
Analysis of Electrochemical Properties of Stimulation Electrode for Visual Prosthesis in Chronic Stimulation
Mariko Kuwabara (NAIST), Hiroyuki Tashiro (Kyushu Univ.), Yasuo Terasawa, Yukari Nakano (Nidek), Jun Ohta (NAIST) MBE2017-51
Abstract (in Japanese) (See Japanese page) 
(in English) Visual prosthesis is a device that reproduces a lost vision by electrical stimulation to the visual nervous system via metal stimulation electrodes. Excessive stimulation current affects durability of the electrode. In this study, it was obtained that change in interface characteristics of stimulation electrode due to stimulation. Electrochemical impedance spectroscopy (EIS) of active/inactive electrodes implanted into rabbit eyeball was performed, and the EIS result was evaluated by equivalent circuit analysis. Histological evaluation was also conducted, then, granulation tissue was observed around the both electrodes. As a result of equivalent circuit analysis, the electrochemical characteristics of the electrode were different between active and inactive electrode, and it was presumed that desorption of protein adsorbed on electrode surface of active electrode.
Keyword (in Japanese) (See Japanese page) 
(in English) Visual prosthesis / Stimulation electrode / Electrochemical impedance spectroscopy / Equivalent circuit analysis / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 324, MBE2017-51, pp. 23-28, Nov. 2017.
Paper # MBE2017-51 
Date of Issue 2017-11-17 (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)
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Conference Information
Committee MBE NC  
Conference Date 2017-11-24 - 2017-11-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) BCI/BMI, generall 
Paper Information
Registration To MBE 
Conference Code 2017-11-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of Electrochemical Properties of Stimulation Electrode for Visual Prosthesis in Chronic Stimulation 
Sub Title (in English)  
Keyword(1) Visual prosthesis  
Keyword(2) Stimulation electrode  
Keyword(3) Electrochemical impedance spectroscopy  
Keyword(4) Equivalent circuit analysis  
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1st Author's Name Mariko Kuwabara  
1st Author's Affiliation Nara Institute of Science and Technology (NAIST)
2nd Author's Name Hiroyuki Tashiro  
2nd Author's Affiliation Kyushu University (Kyushu Univ.)
3rd Author's Name Yasuo Terasawa  
3rd Author's Affiliation Nidek Co., Ltd. (Nidek)
4th Author's Name Yukari Nakano  
4th Author's Affiliation Nidek Co., Ltd. (Nidek)
5th Author's Name Jun Ohta  
5th Author's Affiliation Nara Institute of Science and Technology (NAIST)
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Speaker Author-1 
Date Time 2017-11-25 10:50:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2017-51 
Volume (vol) vol.117 
Number (no) no.324 
Page pp.23-28 
#Pages 6 
Date of Issue 2017-11-17 (MBE) 

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