Controlled transport of droplets using conducting polymers

Authors

Gordon G. Wallace, University of WollongongFollow
Geoffrey M. Spinks, University of WollongongFollow
Shannon Little, University of WollongongFollow
Jennifer A. Halldorsson, University of WollongongFollow
Dermot Diamond, Dublin City University

RIS ID

32322

Publication Details

Halldorsson, J. A., Little, S., Diamond, D., Spinks, G. Maxwell. & Wallace, G. G. (2009). Controlled transport of droplets using conducting polymers. Langmuir: the ACS journal of surfaces and colloids, 25 (18), 11137-11141.

Abstract

The controlled transport and delivery of dichloromethane through platinum mesh coated with dodecylbenzenesulfonate-doped polypyrrole is demonstrated upon in situ electrochemical redox switching. Droplets of dichloromethane were observed to pass freely through the mesh upon reduction of the polymer as a result of the release of the surfactant dopant into the dichloromethane and the change in the surface energy of the polymer. Planar and liquid-filled tube configurations are investigated. These concepts are envisaged to prove useful for fluid control in microfluidic devices, in the preparation of microparticles for drug delivery, and in the development of organic microreactors.

Grant Number

ARC/FF0669110

Additional Grant Number

http://purl.org/au-research/grants/ARC/FF0669110