We report a microdispenser that can meter and mix sub-nanoliter liquids in a discrete quantity. Our device is based on the structural stopping valve used in passive dispensers. A vent channel was proposed, designed for the autonomous pausing of a metered liquid segment and the seamless joining of the subsequent segments. While the previous microfluidic devices could meter only a single drop, lacking in mixing multiple segments, our approach enables the metering/mixing of different liquids in a discrete ratio. This module will find applications in bio-engineering and pharmaceutical research including large-scale cell differentiation experiment and drug discovery platforms.
Journal: TechConnect Briefs
Volume: 3, Nanotechnology 2008: Microsystems, Photonics, Sensors, Fluidics, Modeling, and Simulation – Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, Volume 3
Published: June 1, 2008
Pages: 292 - 295
Industry sectors: Medical & Biotech | Sensors, MEMS, Electronics
Topic: Micro & Bio Fluidics, Lab-on-Chip