Contactless electrochemical actuator for precise sampling on microchip

The scope of this work has been the design of a mechanical actuator in polydimethylsiloxane (PDMS) / glass for precise liquid sampling, based on the electrochemical generation of O2. The device is composed of two chambers separated by a PDMS membrane. In the first chamber, the generated gas bends the membrane, actuating a precise volume of a liquid sample in the second chamber. The linear relationship between the number of transferred charges and the number of gaseous O2 molecules allows a very accurate control of the dispensed volume.


Published in:
Proceedings of 9th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS), 1, 169-171
Presented at:
9th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS), Boston, Massachusetts, USA, October 9-13, 2005
Year:
2005
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 Record created 2006-11-08, last modified 2018-03-17

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