title: Low cost integration of 3D-electrode structures into microfluidic devices by replica molding.
abstract: We demonstrate a new replica molding method for integrating 3D-composite electrodes into microfluidic devices made from polydimethylsiloxane (PDMS) at low cost. Our process does not require work in a cleanroom, expensive materials, or expensive equipment once a micro mold has been fabricated using standard multilayer SU-8 photolithography. Different device geometries have been fabricated to demonstrate the capabilities and limitations of the method. The electrical properties of the composite electrode material are characterized. Furthermore, a device for concentrating particles via AC-dielectrophoresis is presented as an example for a potential application of the fabrication process.
authors.affiliation: The University of British Columbia, 2054-6250 Applied Science Lane, Vancouver, BC V6T 1Z4, Canada. mustin@mech.ubc.ca
authors.forename: Benjamin
authors.initials: B
authors.lastname: Mustin
authors.forename: Boris
authors.initials: B
authors.lastname: Stoeber