The development and characterisation of square microfabricated electrode systems

Helena L. Woodvine, Jonathan G. Terry, Anthony J. Walton, Andrew R. Mount

Research output: Contribution to journalArticlepeer-review

Abstract

This paper outlines the systematic production and characterisation of biocompatible square microfabricated electrode systems for electroanalysis. In contrast to previous results, a combination of simulation, theoretical analysis and measurement has established that there is an enhanced current density for a microsquare electrode under mass transport limiting current conditions when compared to a microdisc of equivalent size. This is not simply due to a difference in the effective areas of the electrodes as the difference is frequency (diffusion layer thickness) dependent; it can instead be attributed to the effects of enhanced diffusion at the corners of the microsquares on the growing diffusion layer.

Original languageEnglish
Pages (from-to)1058-1065
Number of pages8
JournalAnalyst
Volume135
Issue number5
Early online date16 Feb 2010
DOIs
Publication statusPublished - 2010

Keywords

  • TRANSMISSION-LINE MODEL
  • MICROELECTRODE ARRAYS
  • MICRODISK ELECTRODE
  • CYCLIC VOLTAMMETRY
  • CHARGE-TRANSFER
  • AC-IMPEDANCE
  • ELECTROCHEMISTRY
  • DISK

Fingerprint

Dive into the research topics of 'The development and characterisation of square microfabricated electrode systems'. Together they form a unique fingerprint.

Cite this