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Hybrid microfluidic sensors fabricated by screen printing and injection molding for electrochemical and electrochemiluminescence detection

  • Zainab Mohammed Redha
    ,
  • Sara. J. Baldock
    ,
  • Peter R. Fielden
    ,
  • Nick J. Goddard
    ,
  • Bernard J. Treves Brown
    ,
  • Barry Haggett
Research Output: Contribution to journal Article Peer-review

Abstract

An integrated microfluidic/electrochemical sensor with a dual working electrode configuration was fabricated for voltammetric and electrochemiluminescence (ECL) applications. The fabrication method integrates the two techniques of injection molding and screen printing for the first time. Injection molding is used to fabricate the flow cell with integrated electrical and fluidic connectors. Screen printing was used to print the electrodes directly onto the injection molded base plate. An over molding procedure followed by ultrasonic welding was used to form the complete sensor. The electrochemical and ECL performance of the sensors was assessed by applying different electrochemical methods such as cyclic voltammetry (CV), anodic stripping voltammetry (ASV) and chronoamperometry. The attractive analytical performance demonstrates good capability of the disposable sensors for routine on-line electrochemical and ECL measurements.

Publication Information

Output type

Research Output: Contribution to journal Article Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 422-430

Journal (Volume, Issue Number)

Electroanalysis (Volume 21, Issue 3-5)

Publication milestones

  • Published - 01/02/2009

Publication status

Published - 01/02/2009

ISSN

1040-0397

External Publication IDs

  • handle.net: 10547/225311
  • Scopus: 60549100579

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