Surface-acoustic-wave counterflow micropumps for on-chip liquid motion control in two-dimensional microchannel arrays

Masini, Luca; Cecchini, Marco; Girardo, Salvatore; Cingolani, Roberto; Pisignano, Dario; Beltram, Fabio (2010). Surface-acoustic-wave counterflow micropumps for on-chip liquid motion control in two-dimensional microchannel arrays. Lab on a chip, 10(15), pp. 1997-2000. Cambridge: Royal Society of Chemistry 10.1039/c000490a

Full text not available from this repository. (Request a copy)

Fully controlled liquid injection and flow in hydrophobic polydimethylsiloxane (PDMS) two-dimensional microchannel arrays based on on-chip integrated, low-voltage-driven micropumps are demonstrated. Our architecture exploits the surface-acoustic-wave (SAW) induced counterflow mechanism and the effect of nebulization anisotropies at crossing areas owing to lateral propagating SAWs. We show that by selectively exciting single or multiple SAWs, fluids can be drawn from their reservoirs and moved towards selected positions of a microchannel grid. Splitting of the main liquid flow is also demonstrated by exploiting multiple SAW beams. As a demonstrator, we show simultaneous filling of two orthogonal microchannels. The present results show that SAW micropumps are good candidates for truly integrated on-chip fluidic networks allowing liquid control in arbitrarily shaped two-dimensional microchannel arrays.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Dermatology, Urology, Rheumatology, Nephrology, Osteoporosis (DURN) > Clinic of Urology

UniBE Contributor:

Cecchini, Marco Giovanni

ISSN:

1473-0197

Publisher:

Royal Society of Chemistry

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:10

Last Modified:

17 Mar 2015 19:10

Publisher DOI:

10.1039/c000490a

PubMed ID:

20526514

Web of Science ID:

000279851200017

URI:

https://boris.unibe.ch/id/eprint/1249 (FactScience: 202403)

Actions (login required)

Edit item Edit item
Provide Feedback