Autonomous microfluidics realized with active hydrophobic valves

  • G. C. Biswas
  • , T. Watanabe
  • , E. T. Carlen
  • , M. Yokokawa
  • , H. Suzuki

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

2 Scopus citations

Abstract

Sophisticated microfluidic systems were realized using simple valves based on switching from a hydrophobic state to a hydrophilic state. The valve consisted of a hydrophobic self-assembled monolayer (SAM) formed on a platinum electrode in a poly (dimethylsiloxane) (PDMS) flow channel. The valve could stop a solution moving by capillary action. The solution passed through the valve following reductive desorption of the SAM when an appropriate potential was applied to the electrode. The same switching could also be implemented by changing the mixed potential by wetting a zinc electrode in a controlling flow channel connected to the valve electrode.

Original languageEnglish
Title of host publication2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1806-1809
Number of pages4
ISBN (Electronic)9781479989553
DOIs
StatePublished - Aug 5 2015
Event18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 - Anchorage, United States
Duration: Jun 21 2015Jun 25 2015

Publication series

Name2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015

Conference

Conference18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
Country/TerritoryUnited States
CityAnchorage
Period06/21/1506/25/15

Keywords

  • autonomous microfluidics
  • Hydrophobic valve
  • microfluidic transport
  • mixed potential
  • platinum electrode
  • SAM

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