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Issue 14, 2012
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A novel screen-printed electrode array for rapid high-throughput detection

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A novel multi-channel electrode array sensing device was fabricated by screen-printing techniques using 96-well plate as the template. To confirm its practical value, we developed a one-step preparation of multi-walled carbon nanotubes (MWCNTs) doped electrode array by an ink containing MWCNTs, which was applied to the simultaneous detection of a variety of biological samples and environmental pollutants. Results demonstrated that the designed sensing device could carry out the multiple measurements of different analytes at the same time, while MWCNTs enhanced the electrocatalytic activity of electrodes toward electroactive molecules. The required amount of each sample was only ∼200 μL. Moreover, the excellent differential pulse voltammetric (DPV) response toward dopamine, hydroquinone and catechol was obtained and the detection limits was determined to be 0.337, 0.289 and 0.369 μM, respectively. Comparing it with the traditional screen-printed electrode (SPE), this sensing device possesses the advantages of high-throughput, fast electron transfer rate for electrodes, short-time analysis and low sample consumption.

Graphical abstract: A novel screen-printed electrode array for rapid high-throughput detection

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Publication details

The article was received on 24 Feb 2012, accepted on 30 Apr 2012 and first published on 01 May 2012

Article type: Communication
DOI: 10.1039/C2AN35261C
Citation: Analyst, 2012,137, 3220-3223
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    A novel screen-printed electrode array for rapid high-throughput detection

    S. Mu, X. Wang, Y. Li, Y. Wang, D. Li and Y. Long, Analyst, 2012, 137, 3220
    DOI: 10.1039/C2AN35261C

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