Microfluidic sensor for ultra high redox cycling amplification for highly selective electrochemical measurements


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Odijk, Mathieu and Straver, Martin and Olthuis, Wouter and Berg van den, Albert (2011) Microfluidic sensor for ultra high redox cycling amplification for highly selective electrochemical measurements. In: 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences, μTAS 2011, 2-6 October 2011, Seattle, Washington.

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Abstract:In this contribution a SU8/glass-based microfluidic sensor is described with two closely spaced parallel electrodes for highly selective measurements using the redox cycling (RC) effect. Using this sensor, a RC amplification of ~2000x is measured using the ferrocyanide redox couple, which is much higher than the 400x reported so far [1]. Moreover, an analytical expression is derived that predicts the amplification factor based on the sensor geometry.
Item Type:Conference or Workshop Item
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
Link to this item:http://purl.utwente.nl/publications/78661
Conference URL:http://www.microtas2011.org/
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