High charge storage capacity electrodeposited iridium oxide film on liquid crystal polymer-based neural electrodes
- 주제(키워드) Electrodeposited iridium oxide ilm , Lexible neural interface , Liquid crystal polymer , Polymer-based neural prosthesis
- 등재 SCIE, SCOPUS
- 발행기관 M Y U Scientific Publishing Division
- 발행년도 2016
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000139608
- 본문언어 영어
- Published As http://dx.doi.org/10.18494/SAM.2016.1175
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
This research presents the development of neural electrodes with a high charge storage capacity using electrodeposited iridium oxide ilm (EIROF). The neural electrode was fabricated on a lexible liquid crystal polymer (LCP) substrate, which has a low moisture absorption rate and a low moisture permeability. On the electrode sites, iridium oxide was electrodeposited to increase the charge storage capacity for facilitating both neural stimulation and neural recording. Although EIROFs have been previously proposed as an electrode material, the fabrication process was not thoroughly investigated and optimized.(20) After electrodeposition using different numbers of rectangular voltage pulses and triangular waveforms, the iridium oxide electrodes were characterized in terms of charge storage capacity and electrochemical impedance. The surfaces of EIROFs were examined using atomic force microscopy (AFM) and scanning electron microscopy (SEM). In addition, the elementary composition of the EIROF surfaces was quantitatively determined using X-ray photoelectron spectroscopy (XPS). The in vivo neural recording from the rat ventral poster lateral (VPL) nucleus successfully showed that the proposed electrode is feasible for recording the neural activity. © 2016 MYU K.K.
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