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Issue 1, 2010
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An automated microdroplet passive pumping platform for high-speed and packeted microfluidic flow applications

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Abstract

Surface tension driven passive pumping is a microfluidic technology that uses the surface tension present in small droplets to generate flow. To enhance the potential of this type of passive pumping, a new ‘micro passive pumping’ technique has been developed that allows for high throughput fluidic delivery by combining passive pumping with a small droplet-based fluidic ejection system. Flow rates of up to four milliliters per minute (mL/min) were achieved that are solely limited by the channel geometry and droplet size. Fluid exchange rates can be performed within tens of milliseconds (ms) by delivering fluids from multiple nozzles. The technique can be extended to a multitude of platforms, as channels are not pressurized and therefore do not require bonding to a substrate. This technique provides a novel flow control for high-speed and packeted flow applications without requiring external tubing connections or substrate bonding.

Graphical abstract: An automated microdroplet passive pumping platform for high-speed and packeted microfluidic flow applications

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Article information


Submitted
26 Aug 2009
Accepted
14 Oct 2009
First published
30 Oct 2009

Lab Chip, 2010,10, 23-26
Article type
Communication

An automated microdroplet passive pumping platform for high-speed and packeted microfluidic flow applications

P. J. Resto, B. J. Mogen, E. Berthier and J. C. Williams, Lab Chip, 2010, 10, 23
DOI: 10.1039/B917147A

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