Valving in microchannels via electrodeposition on solid electrolytes

Michael Kozicki, P. Maroufkhani, M. Mitkova

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

1 Scopus citations

Abstract

Microfluidic technology is currently being applied to analytical systems but suitable valving elements are proving to be difficult to implement. We have recently developed a novel way to electrically regulate flow through microchannels via a structure that can be made using readily available microfabrication techniques. An electrical signal is used to stimulate silver deposition on a thin Ag-Ge-Se solid electrolyte layer in a small region of a channel. The electrodeposited silver, which is a high surface area fractal structure less than 1 μm in height and several hundred μm long, changes the fluid-surface interaction. In this paper we demonstrate that this effect can be used to regulate pressure-driven flow in a microchannel.

Original languageEnglish (US)
Title of host publication2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings
EditorsM. Laudon, B. Romanowicz
Pages716-719
Number of pages4
Publication statusPublished - 2005
Event2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 - Anaheim, CA, United States
Duration: May 8 2005May 12 2005

Other

Other2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005
CountryUnited States
CityAnaheim, CA
Period5/8/055/12/05

    Fingerprint

Keywords

  • Chalcogenide
  • Electrodeposition
  • Microfluidics
  • Solid electrolyte
  • Valve

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kozicki, M., Maroufkhani, P., & Mitkova, M. (2005). Valving in microchannels via electrodeposition on solid electrolytes. In M. Laudon, & B. Romanowicz (Eds.), 2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings (pp. 716-719)