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A LIQUID-TRIGGERED LIQUID MICROVALVE
KTH, Superseded Departments, Signals, Sensors and Systems.
KTH, Superseded Departments, Signals, Sensors and Systems.
KTH, Superseded Departments, Signals, Sensors and Systems.
KTH, Superseded Departments, Signals, Sensors and Systems.
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2003 (English)In: 12th IEEE International Conference on Solid-State Sensors, Actuators and Microsystems (IEEE TRANSDUCERS 2003): DIGEST OF TECHNICAL PAPERS, VOL 1 AND 2, NEW YORK: IEEE conference proceedings, 2003, Vol. 2, 1562-1565 p.Conference paper, Published paper (Refereed)
Abstract [en]

This work introduces a novel surface tension and geometry based liquid-triggered liquid microvalve for on-chip liquid control. The simultaneous presence of two liquid plugs at the uncomplicated valve junction triggers the further movement of the liquids and overcomes the stop valve function of the device, thereby providing a precise means of timing liquid movement on-chip. The structure was shown to successfully function and forms the basis for several novel and useful functions, including fluidic AND gates, contactless on-chip liquid sample control, timing of independent processes on the same microchip, bubble-free joining of liquids, all of which pose great challenges in the area of microfluidics.

Place, publisher, year, edition, pages
NEW YORK: IEEE conference proceedings, 2003. Vol. 2, 1562-1565 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-24801DOI: 10.1109/SENSOR.2003.1217077ISI: 000184567300392ISBN: 0-7803-7731-1 (print)OAI: oai:DiVA.org:kth-24801DiVA: diva2:354831
Conference
12th IEEE International Conference on Solid-State Sensors, Actuators and Microsystems (IEEE TRANSDUCERS 2003), BOSTON, MA, USA, 08-12 Jun, 2003
Note

QC 20101005

Available from: 2010-10-05 Created: 2010-09-27 Last updated: 2015-06-03Bibliographically approved

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fulltext(287 kB)61 downloads
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van der Wijngaart, WouterStemme, Göran

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