Cart (Loading....) | Create Account
Close category search window

Fabrication and characterization of nonplanar microelectrode array circuits for use in arthroscopic diagnosis of cartilage diseases

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Quenneville, E. ; Dept. of Chem. Eng., Ecole Polytechnique de Montreal, Que., Canada ; Binette, J.-S. ; Garon, M. ; Legare, A.
more authors

A process to fabricate nonplanar microelectrode array circuits was developed and the microelectrodes were characterized. These platinum microelectrode arrays are for recording streaming potential signals generated during indentation of articular cartilage. The nonplanar substrate was produced by permanent deformation of a 7-in-diameter circular stainless-steel wafer to form 32 semi-spherical caps (radius of curvature=4.65 mm and height=250 μm) at the periphery. The wafer was covered with a 2.5-μm-thick layer of insulating polyimide. Standard microelectronic processes were applied to produce 32 circuits (60 mm long ×4 mm wide) with 37 exposed circular microelectrodes (diameter=100 μm) centered over each semi-spherical cap. A 2.5-μm-thick photodefinable polyimide layer encapsulated the conducting lines. Capacitances between one microelectrode and either another microelectrode or the metallic substrate were 14.6±2.0 and 34.4±3.3 pF, respectively, at 100 Hz. The impedance of the microelectrodes in a 0.15 M saline bath (PBS) was 0.25±0.08 MΩ while the crosstalk (Vinduced/Vapplied) between two microelectrodes was 0.20±0.11%, at 100 Hz. Indentation measurements were performed on articular cartilage in vitro showing streaming potentials that indicate electrode-tissue contact times and generation of streaming potentials.

Published in:

Biomedical Engineering, IEEE Transactions on  (Volume:51 ,  Issue: 12 )

Date of Publication:

Dec. 2004

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.