Abstract

This paper presents a unique microscale phenomenon as a possible approach for harnessing surface tension-confined microfluidics, facilitated by the Marangoni effect. Spontaneous flow pulses were generated between droplets with different surface tensions, where the pulsing frequency was a function of the surface tension gradient. We show that the Marangoni effect-driven flow can be used to deliver liquid in small open channels where the boundaries of channels are defined not by solid structures, but by hydrophilic/hydrophobic patterns.

Original languageEnglish (US)
Title of host publicationProceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PublisherChemical and Biological Microsystems Society
Pages61-63
Number of pages3
ISBN (Print)9780979806421
StatePublished - 2009
Event13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009 - Jeju, Korea, Republic of
Duration: Nov 1 2009Nov 5 2009

Other

Other13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009
CountryKorea, Republic of
CityJeju
Period11/1/0911/5/09

Fingerprint

Microfluidics
Surface tension
Liquids

Keywords

  • Marangoni effect
  • Microfluidic pumping
  • Surface tension

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Bioengineering

Cite this

Chao, S-H., & Meldrum, D. (2009). Liquid pumping with surface tension-confined microfluidics. In Proceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences (pp. 61-63). Chemical and Biological Microsystems Society.

Liquid pumping with surface tension-confined microfluidics. / Chao, Shih-Hui; Meldrum, Deirdre.

Proceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences. Chemical and Biological Microsystems Society, 2009. p. 61-63.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chao, S-H & Meldrum, D 2009, Liquid pumping with surface tension-confined microfluidics. in Proceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences. Chemical and Biological Microsystems Society, pp. 61-63, 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009, Jeju, Korea, Republic of, 11/1/09.
Chao S-H, Meldrum D. Liquid pumping with surface tension-confined microfluidics. In Proceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences. Chemical and Biological Microsystems Society. 2009. p. 61-63
Chao, Shih-Hui ; Meldrum, Deirdre. / Liquid pumping with surface tension-confined microfluidics. Proceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences. Chemical and Biological Microsystems Society, 2009. pp. 61-63
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