Prototypical nonelectrochemical method for surface regeneration of an integrated electrode in a PDMS microfluidic chip

Xuan Mu, Qionglin Liang, Ping Hu, Bo Yao, Kangning REN, Yiming Wang, Guoan Luo*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A prototypical method for surface regeneration of an integrated electrode in a microfluidic chip is demonstrated. A platinum wire as working electrode was mounted in a polydimethylsiloxane chip vertical to the chip through the channel. The regeneration of the electrode was easily achieved by drawing the platinum wire out for 5 mm, because the area exposed to the channel or the stream would be altered. With continuous motion, the wire electrode can maintain a fresh surface just like a dropping mercury electrode. The current-time curve and open circuit potential (OCP) of dopamine solution show the performance of this prototypical system.

Original languageEnglish
Pages (from-to)1986-1996
Number of pages11
JournalAnalytical Letters
Volume42
Issue number13
DOIs
Publication statusPublished - 2009

Scopus Subject Areas

  • Analytical Chemistry
  • Biochemistry
  • Spectroscopy
  • Clinical Biochemistry
  • Biochemistry, medical
  • Electrochemistry

User-Defined Keywords

  • Dopamine
  • Electrochemistry detection
  • Microfluidic chip
  • PDMS
  • Surface regeneration

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