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

Redha, Zainab Mohammed and Baldock, Sara J. and Fielden, Peter R. and Goddard, Nick J. and Brown, Bernard J. Treves and Haggett, Barry G. D. and Andres, Roberto and Birch, Brian J. (2009) Hybrid microfluidic sensors fabricated by screen printing and injection molding for electrochemical and electrochemiluminescence detection. Electroanalysis, 21 (3-5). pp. 422-430. ISSN 1040-0397

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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.

Item Type:
Journal Article
Journal or Publication Title:
Electroanalysis
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1600/1603
Subjects:
ID Code:
77387
Deposited By:
Deposited On:
23 Dec 2015 11:44
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Apr 2020 04:19