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 . Moreover, an analytical expression is derived that predicts the amplification factor based on the sensor geometry.
|Title of host publication||15th International Conference on Miniaturized Systems for Chemistry and Life Sciences|
|Place of Publication||Washington|
|Publisher||Chemical and Biological Micro Systems Society|
|Number of pages||3|
|Publication status||Published - 2 Oct 2011|
|Event||15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, µTAS 2011 - Seattle, United States|
Duration: 2 Oct 2011 → 6 Oct 2011
Conference number: 15
|Publisher||Chemical and Biological Microsystems Society|
|Conference||15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, µTAS 2011|
|Period||2/10/11 → 6/10/11|
- Redox Cycling
Odijk, M., Straver, M., Olthuis, W., & van den Berg, A. (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 (pp. 1281-1283). Washington: Chemical and Biological Micro Systems Society.