Skip to main content

Fabrication of Pyramid-Shaped Three-Dimensional Flexible Microelectrode Array for Improved Neural Interfacing

Buy Article:

$113.00 plus tax (Refund Policy)

Abstract:

Electrode-tissue interfacing is critical for effective implementation of neural recording or stimulation. In this paper, we report a pyramid-shaped three-dimensional (3D) flexible microelectrode array for the purpose of achieving improved electrode-tissue interfacing for retinal stimulation. The pyramid-shaped flexible microelectrode was fabricated through a novel fabrication process, in which an electrochemical-based sacrificial layer (aluminum) was deposited to facilitate the removal of the photoresist remaining in the silicon mold pits. The geometrical and electrical properties of the microelectrode were investigated by the scanning electron microscope (SEM) and the electrochemical measurement, respectively. The measured electrode impedance of the pyramid-shaped microelectrodes is about 2 times lower than that of the conventional planar microelectrodes (2D) with the same base area. The applicability of this 3D electrode for rabbit's retinal stimulation was demonstrated. This novel 3D electrode array can be a promising candidate for retinal prosthesis.

Keywords: FLEXIBLE ELECTRODES; NEURAL INTERFACING; THREE-DIMENSIONAL ELECTRODES

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/sl.2009.1017

Publication date: February 1, 2009

More about this publication?
  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
asp/senlet/2009/00000007/00000001/art00017
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more