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Valveless fluid actuation: Liebau’s principle fully integrated on the microfluidic scale
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2013 (English)In: 17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013, 2013, Vol. 1, 182-184 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this contribution, we present the integration of valveless impedance pumping on the microfluidic scale. When a fluidic channel is periodically compressed at a point located asymmetrically with respect to an impedance mismatch in the system, an effective fluid flow is the result although no further moving parts such as valves are involved. Such an impedance mismatch could be e.g. a sudden reduction of the channel cross section. Four different types of impedance mismatches are being investigated concerning their response to different applied pressures and compression frequencies .A maximum fluid velocity of 25 }im/s and even a frequency dependent overall inversion of the flow direction could be observed.

Place, publisher, year, edition, pages
2013. Vol. 1, 182-184 p.
Keyword [en]
Impedance pumping, Valveless fluid actuation
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:kth:diva-168777Scopus ID: 2-s2.0-84907343834OAI: oai:DiVA.org:kth-168777DiVA: diva2:820409
Conference
17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013; Freiburg; Germany
Note

QC 20150612

Available from: 2015-06-12 Created: 2015-06-09 Last updated: 2015-06-12Bibliographically approved

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Eichhorn, Ralf
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Nordic Institute for Theoretical Physics NORDITA
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