Biophysics/ Engineering of Cortical Electrodes

Chapter

Abstract

This chapter provides a description of how microelectrodes are used to form an artificial interface to the cortex. Microelectrodes inserted into the cortex are called “intracortical electrodes” and are anticipated for use in cortical visual prostheses. Owing to the nature of the cortical environment, the design and use of these electrodes pose challenges for the clinical deployment of cortical prostheses. The combined effects of electrode charge injection and effects of the in vivo environment are discussed.

Keywords

TiO2 Migration Hydrate Depression Platinum 

Abbreviations

Ag|AgCl

Silver–silver chloride

AIROF

Activated iridium oxide film

C

Capacitance

CSC

Charge storage capacity

CSCA

Anodic charge storage capacity

CSCC

Cathodic charge storage capacity

CV

Cyclic voltammetry

I

Current

Ir

Iridium

IR

Infrared

PEDOT

Polyethylenedioxythiophene

Pt

Platinum

R

Resistance

Redox

Reduction-oxidation chemical reaction

SIROF

Sputtered iridium oxide film

V

Voltage

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Department of Biomedical EngineeringPritzker Institute of Biomedical Science and Engineering, Illinois Institute of TechnologyChicagoUSA

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