Bi-directional switching of microdroplet adhesion on doped polypyrrole microstructures

W. Xu, X. Li, A. Palumbo, C. H. Choi, E. H. Yang

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

1 Scopus citations

Abstract

This paper presents a study of bi-directional switchable adhesion of an organic microdroplet on dodecylbenzenesulfonate doped polypyrrole (PPy(DBS)) microstructures at ultra-low voltages (0.9 V) in an aqueous environment. The PPy(DBS) switched between an oxidized and a reduced state upon application of low voltages. The PPy(DBS) microstructure oxidized at 0.6 V behaved like a super sticky surface in regard to an organic droplet; in contrast, the PPy(DBS) microstructure reduced at-0.9 V was super slippery. Utilizing the tunable adhesion property of PPy(DBS) microstructures, we demonstrated a capture/release manipulation of an oil-based dichloromethane (DCM) microdroplet at a voltage of 0.9 V.

Original languageEnglish
Title of host publication2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014
EditorsMark G. Allen, Mehran Mehregany
Pages123-126
Number of pages4
ISBN (Electronic)9781940470016
DOIs
StatePublished - 2014
Event2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014 - Hilton Head Island, United States
Duration: 8 Jun 201412 Jun 2014

Publication series

NameTechnical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop

Conference

Conference2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014
Country/TerritoryUnited States
CityHilton Head Island
Period8/06/1412/06/14

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