Fabrication of boron doped diamond microband electrodes for electrochemical detection in a microfluidic channel

Pontus Forsberg*, E. O. Jorge, Leif Nyholm, Fredrik Nikolajeff, Mikael Karlsson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The manufacturing and electrochemical characterisation of an array of 20 boron doped nanocrystalline diamond (BNCD) microband electrodes for use in a poly(dimethylsiloxane) (PDMS) based microfluidic system are described. The electrodes were fabricated by plasma etching of a silicon oxide- and BNCD thin film coated silicon wafer and the resulting surface structured silicon wafer was subsequently bonded to the PDMS so that the BNCD microband electrodes were located within the PDMS microchannel. The electrochemical performance of the BNCD electrodes was studied and the electrodes were found to exhibit significantly better stability than previously employed gold microband arrays.

Original languageEnglish
Pages (from-to)1121-1124
Number of pages4
JournalDiamond and Related Materials
Volume20
Issue number8
DOIs
Publication statusPublished - Aug 2011
Externally publishedYes

Keywords

  • Diamond film
  • Electrochemical applications
  • Electrodes
  • Micro electromechanical systems
  • Nanocrystalline
  • Sensors

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