Hydrophilic modification of multi-walled carbon nanotubes based neural microelectrode array

Author

Chen, C.H. ; Su, H.C. ; Chuang, S.C. ; Yen, S.J. ; Chen, Y.C. ; Lee, Y.T. ; Yew, T.R. ; Chen, H. ; Yeh, S.R. ; Chang, Y.C. ; Yao, D.J.

Author_Institution

Nat. Tsing Hua Univ., Hsinchu, Taiwan

fYear

2009

fDate

21-25 June 2009

Firstpage

967

Lastpage

970

Abstract

This paper reports an improved method for reducing the impedance of microelectrode array (MEA). The impedance reduction is generally required by increasing the effective surface area of electrode. We have fabricated and treated the multi-walled carbon nanotubes (MWCNTs) based MEA for neuroscience application. The effect of plasma treatment on the surface wettability of MWCNTs was examined and characterized. The H₂O plasma treatment was utilized to modify the surface of MWCNTs from superhydrophobic to superhydrophilic. The treated recipe of power under 25 W for 10 sec could improve the electro-chemical and biological properties efficiently.

Keywords

carbon nanotubes; hydrogen compounds; hydrophilicity; hydrophobicity; microelectrodes; surface treatment; wetting; H₂O; hydrophilic modification; impedance reduction; multiwalled carbon nanotubes; neural microelectrode array; plasma treatment; superhydrophilic; superhydrophobic; surface wettability; Carbon nanotubes; Electrodes; Microelectrodes; Neural microtechnology; Neuroscience; Plasma applications; Plasma properties; Plasma temperature; Surface impedance; Surface treatment; Microelectrode Array; Multi Walled Carbon Nanotubes; Neuroscience;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems Conference, 2009. TRANSDUCERS 2009. International

Conference_Location

Denver, CO

Print_ISBN

978-1-4244-4190-7

Electronic_ISBN

978-1-4244-4193-8

Type

conf

DOI

10.1109/SENSOR.2009.5285978

Filename

5285978