Micro/nano surface tension measurement by 2D-capillary wave resonance

Myungwha Chung, Christian Pigot, Akihide Hibara

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

Abstract

The analysis of capillary waves in confined microspace by quasi-elastic laser scattering (QELS) method enables surface tension measurements. In contrast to previous works, a simple single-beam-focusing method based on spontaneous capillary wave resonance with its confined size is proposed. The capillary wave resonance has been successfully demonstrated in confined two-dimensional micro surface at circular apertures. Moreover, the surface tension dependence on surfactant concentration has been successfully measured at 44-μm-sized circular liquid surface. This method is expected to be a powerful tool for bio and chemical sensing at micro-/nano-scale liquid interfaces.

Original languageEnglish
Title of host publication17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
PublisherChemical and Biological Microsystems Society
Pages922-924
Number of pages3
ISBN (Print)9781632666246
Publication statusPublished - 2013
Externally publishedYes
Event17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013 - Freiburg, Germany
Duration: 2013 Oct 272013 Oct 31

Publication series

Name17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
Volume2

Other

Other17th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2013
CountryGermany
CityFreiburg
Period13/10/2713/10/31

Keywords

  • Capillary wave resonance
  • Microscale liquid interface
  • Quasi-elastic laser scattering method
  • Surface tension measurement

ASJC Scopus subject areas

  • Bioengineering

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