A low-voltage droplet manipulation via tunable wetting on a polypyrrole(DBS) surface

W. Xu, Y. Tian, H. Bisaria, P. Ahn, X. Li, Y. T. Tsai, C. H. Choi, E. H. Yang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The electrowetting on dielectric (EWOD) technique has been used to manipulate microliter-sized individual droplets for microfluidic applications. However, EWOD-based techniques typically require relatively high actuation voltages (12-80V), which is undesirable for biomedical applications or applications including on-site operation. In this work, we studied a new mechanism of liquid droplet manipulation at low voltages (< 1.5 V) by utilizing tunable wetting on a dodecylbenzenesulfonate doped polypyrrole (PPy(DBS)) surface. In particular, manipulations of a liquid droplet on both a PPy(DBS) coated plate and in a microchannel configuration were studied. A quasi-lateral transport of the droplet in a slightly tilted microchannel has also been demonstrated.

Original languageEnglish
Title of host publicationTechnical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013
Pages322-325
Number of pages4
StatePublished - 2013
EventNanotechnology 2013: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013 - Washington, DC, United States
Duration: 12 May 201316 May 2013

Publication series

NameTechnical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013
Volume2

Conference

ConferenceNanotechnology 2013: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013
Country/TerritoryUnited States
CityWashington, DC
Period12/05/1316/05/13

Keywords

  • Droplet manipulation
  • Microfluidics
  • Polypyrrole
  • Tunable wetting

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