A low-voltage microfluidic valve based upon a reversible hydrophobicity effect

Ran Wang, Weijie Yu, Michael N. Kozicki, Junseok Chae

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

Abstract

We report a microfluidic valve based on a reversible hydrophobicity effect via the growth and retraction of nonvolatile nano-textured dendritic silver filaments on the surface of a solid electrolyte. A 6 V DC bias grows or dissolves, depending on the polarity, filaments which are tens to hundreds of nanometers in height. The valving function of these nano-filaments, which occurs within approximately 25 sec, was demonstrated by monitoring the fluid flow in a 250 m wide, 25 m deep PDMS-enclosed channel.

Original languageEnglish (US)
Title of host publication2016 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2016
EditorsMark G. Allen, Tina Lamers
PublisherTransducer Research Foundation
Pages372-375
Number of pages4
ISBN (Electronic)9781940470023
DOIs
Publication statusPublished - Jan 1 2016
Externally publishedYes
Event2016 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2016 - Hilton Head, United States
Duration: Jun 5 2016Jun 9 2016

Publication series

Name2016 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2016

Conference

Conference2016 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2016
CountryUnited States
CityHilton Head
Period6/5/166/9/16

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ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Wang, R., Yu, W., Kozicki, M. N., & Chae, J. (2016). A low-voltage microfluidic valve based upon a reversible hydrophobicity effect. In M. G. Allen, & T. Lamers (Eds.), 2016 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2016 (pp. 372-375). (2016 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2016). Transducer Research Foundation. https://doi.org/10.31438/trf.hh2016.100