ISSN 0914-4935

Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

Guidelines
English    日本語

Template
English

General Notes on Format
English

Publisher
 MYU K.K.
 Sensors and Materials
 1-23-3-303 Sendagi,
 Bunkyo-ku, Tokyo 113-0022, Japan
 Tel: 81-3-3827-8549
 Fax: 81-3-3827-8547


MYU Research

(proofreading and recording)


MYU K.K.
(translation service)


The Art of Writing Scientific Papers

(How to write scientific papers)
(Japanese Only)

Sensors and Materials,
Volume 30, Number 2 (2018)

Copyright(C) MYU K.K. All Rights Reserved.
pp. 251-268
S&M1489
https://doi.org/10.18494/SAM.2018.1723
Published: January 26, 2018

In Vitro and In Vivo Long-term Electrochemical Properties of Electrodes with Femtosecond-laser-induced Porosity for Visual Prostheses Based on Suprachoroidal Transretinal Stimulation [PDF]

Hiroyuki Tashiro, Mariko Kuwabara, Yukari Nakano, Yasuo Terasawa, Koji Osawa, Yurina Yoshimura, Haruna Doi, and Jun Ohta

(Received August 8, 2017; Accepted December 20, 2017)

Keywords: stimulation electrode, electrochemical impedance, charge injection capacity, retinal prosthesis, suprachoroidal transretinal stimulation

We developed a visual prosthesis based on suprachoroidal transretinal stimulation (STS) using electrodes width femtosecond-laser-induced porosity (FLiP electrodes). A current of 1.5 mA (1.25 times higher than that of a device under development) was applied using STS in six rabbits for 6 months to evaluate the long-term changes in the electrochemical properties of FLiP electrodes in vivo. The long-term stability of the FLiP electrodes was determined by in vitro and in vivo evaluation. The performance of the electrodes did not deteriorate as a result of the long-term application of electrical stimulation in vivo. As no difference was observed between the in vivo electrochemical performance of the electrodes to which the stimulation current was applied and not applied during the experiment, it is confirmed that the FLiP electrodes exhibit sufficient safety performance under long-term stimulation both in vivo and in clinical use. However, variations in the characteristics of the electrodes owing to the manufacturing method of the FLiP electrodes were observed. This variation should be reduced during the manufacturing process to avoid side effects owing to unexpected electrochemical behavior in clinical use. This result is useful in understanding the long-term safety testing results of STStype retinal prostheses with FLiP electrodes.

Corresponding author: Hiroyuki Tashiro


Cite this article
Hiroyuki Tashiro, Mariko Kuwabara, Yukari Nakano, Yasuo Terasawa, Koji Osawa, Yurina Yoshimura, Haruna Doi, and Jun Ohta, In Vitro and In Vivo Long-term Electrochemical Properties of Electrodes with Femtosecond-laser-induced Porosity for Visual Prostheses Based on Suprachoroidal Transretinal Stimulation, Sens. Mater., Vol. 30, No. 2, 2018, p. 251-268.


Forthcoming Regular Issues


Forthcoming Special Issues

Special Issue on Biosensing Materials and Engineering for Electrobiology
Guest editor, Toshiya Sakata (The University of Tokyo)


Special Issue on Innovative and Intelligent Sensing Analysis and Experiment for Functional Materials
Guest editor, Cheng-Chi Wang (National Chin-Yi University of Technology)
Conference website


Special Issue on Nanostructure and Its Application in Sensors
Guest editor, Tie Li (Shanghai Institute of Microsystem and Information Technology)


Special Issue on Remote Sensing and Sensing Devices
Guest editor, Haruichi Kanaya (Kyushu University)


Special Issue on International Conference on BioSensors, BioElectronics, BioMedical Devices, BioMEMS/NEMS and Applications 2017 (Bio4Apps 2017)
Guest editor, Toshihiro Itoh (The University of Tokyo); Submission deadline, May 15, 2018
Conference website


Special Issue on Micro/Nano Sensing Platforms Exploring Biomedical Innovation
Guest editor, Ryoji Kurita (National Institute of Advanced Industrial Science and Technology)


Special Issue on Mechanical and Thermal Reliability of Micro/Nanomaterials
Guest editor, Takahiro Namazu (Aichi Institute of Technology) and Shugo Miyake (Kobe City College of Technology)
Call for paper


Special Issue on Universal Power Supply Technologies for Trillion Sensors Era
Guest editor, Keiji Takeuchi (NTT Data Institute of Management Consulting, Inc.)
Call for paper


Special Issue on the Workshop on Sensors and Applications for Fishery and Agricultural Industries
Guest editor, Masaaki Wada (Future University Hakodate) and Katsumori Hatanaka (Tokyo University of Agriculture); Submission deadline, October 12, 2018
Call for paper


Special Issue on Selected Papers from ICASI2018
Guest editor, Teen-Hang Meen (National Formosa University), Shoou-Jinn Chang National Cheng Kung University), and Stephen D. Prior (University of Southampton)
Conference website
Call for paper


Special Issue on the International Multi-Conference on Engineering and Technology Innovation 2018 (IMETI2018)
Guest editor, Wen-Hsiang Hsieh (National Formosa University)
Conference website


Special Issue on Materials, Devices, Circuits, Analytical Methods for Various Sensors (Selected Papers from ICSEVEN 2018)
Guest editor, Chien-Jung Huang (National University of Kaohsiung), Chi-Chih Liao (II-V Epiworks, Inc.), and Ja-Hao Chen (Feng Chia University)
Conference website
Call for paper


Special Issue on Carbon Material-based Chemical and Biochemical Sensors
Guest editor, Yuko Ueno (NTT Basic Research Laboratories) and Osamu Niwa (Saitama Institute of Technology)
Call for paper


Special Issue on Smart Connections and Intelligent Computation in IoT
Guest editor, Jia-Shing Sheu (National Taipei University of Education)
Call for paper


Special Issue on Advanced Nanofabrication Processes for Emerging Devices and Materials
Guest editor, Hiroyuki Akinaga (National Institute of Advanced Industrial Science and Technology, AIST)
Call for paper


Special Issue on Sensing, Interaction, and Fusion towards Smart Cities
Guest editor, Xuefeng Li (Tongji University)
Call for paper


Special Issue on Magnetic Sensors and Applications
Guest editor, Keiji Tsukada (Okayama University)
Call for paper


Special Issue on Sensors and Materials in Manufacturing
Guest editor, Ming Yan (Tokyo Metropolitan University) and Masao Murakawa (Nippon Institute of Technology)
Call for paper


Special Issue on Food-Sensing Technologies and Applications
Guest editor, Hiroyuki Nakamoto (Kobe University)
Call for paper


Special Issue on Environmental Sensing
Guest editor, Hiroshi Aoki (National Institute of Advanced Industrial Science and Technology, AIST)
Call for paper


Special Issue on Remote Sensing and Geospatial Technologies for Sustainable Development
Guest editor, Dong Ha Lee and Tri Dev Acharya (Kangwon National University)
Call for paper



Copyright(C) MYU K.K. All Rights Reserved.