Charge injection characteristics of sputtered ruthenium oxide electrodes for neural stimulation and recording

2021 ◽  
Author(s):  
Bitan Chakraborty ◽  
Alexandra Joshi‐Imre ◽  
Stuart F. Cogan
Keyword(s):  
Ruthenium Oxide ◽  
Charge Injection ◽  
Neural Stimulation ◽  
Oxide Electrodes

scholarly journals Monitoring Contractile Cardiomyocytes via Impedance Using Multipurpose Thin Film Ruthenium Oxide Electrodes

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1433
Author(s):  
Esther Tanumihardja ◽  
Douwe S. de Bruijn ◽  
Rolf H. Slaats ◽  
Wouter Olthuis ◽  
Albert van den Berg
Keyword(s):  
Thin Film ◽  
Electrical Impedance ◽  
Ruthenium Oxide ◽  
Electrical Impedance Spectroscopy ◽  
Visual Data ◽  
Oxide Electrodes ◽  
Pt Electrodes ◽  
Mode Of Operation ◽  
Frequency Components

A ruthenium oxide (RuOx) electrode was used to monitor contractile events of human pluripotent stem cells-derived cardiomyocytes (hPSC-CMs) through electrical impedance spectroscopy (EIS). Using RuOx electrodes presents an advantage over standard thin film Pt electrodes because the RuOx electrodes can also be used as electrochemical sensor for pH, O2, and nitric oxide, providing multisensory functionality with the same electrode. First, the EIS signal was validated in an optically transparent well-plate setup using Pt wire electrodes. This way, visual data could be recorded simultaneously. Frequency analyses of both EIS and the visual data revealed almost identical frequency components. This suggests both the EIS and visual data captured the similar events of the beating of (an area of) hPSC-CMs. Similar EIS measurement was then performed using the RuOx electrode, which yielded comparable signal and periodicity. This mode of operation adds to the versatility of the RuOx electrode’s use in in vitro studies.

Effects of rare earth chlorides on the preparation of porous ruthenium oxide electrodes

1996 ◽  
Vol 239 (2) ◽  
pp. 111-113 ◽  
Author(s):  
Yasushi Murakami ◽  
Takeshi Kondo ◽  
Yoshihiro Shimoda ◽  
Hayato Kaji ◽  
Kiyochika Yahikozawa ◽  
...  
Keyword(s):  
Rare Earth ◽  
Ruthenium Oxide ◽  
Oxide Electrodes

scholarly journals Effects of the Addition of Calcium on the Pseudocapacitance of Ruthenium Oxide Electrodes

2001 ◽  
Vol 69 (6) ◽  
pp. 493-494 ◽  
Author(s):  
Yoshio TAKASU ◽  
Takeshi OHNUMA ◽  
Syunsuke MIZUTANI ◽  
Wataru SUGIMOTO ◽  
Yasushi MURAKAMI
Keyword(s):  
Ruthenium Oxide ◽  
Oxide Electrodes
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