Efficient microfluidic particulate matter (PM) removal device using staggered herringbone micromixers
AssigneeThe Hong Kong University of Science and Technology
InventorsYangfan Chen, Ho Nam Chan, Hongkai Wu
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Abstract
Microfluidic devices to efficiently remove particulate matter (PM) in air are provided, as are methods of fabricating and using the same. A device can include a channel having a structure configured to generate chaotic advective flow in air within the channel. The channel structure can include a plurality of SHMs disposed within the channel, where each SHM comprises a plurality of grooves each having a width of 200 μm or less and a spacing between each groove of 200 μm or less. The plurality of SHMs can be configured to introduce microvortices in air flow within the channel.
Claims10
A microfluidic device, comprising:
- a channel having a structure configured to generate chaotic advective flow of air within the channel,
- wherein the structure of the channel comprises an adhesive surface,
- wherein the structure of the channel comprises a plurality of staggered herringbone micromixers (SHMs) disposed within the channel,
- wherein each SHM comprises a plurality of grooves each having a width of 100 μm or less and a spacing between each groove of 100 μm or less, and
- wherein the structure of the channel generates chaotic advective flow by introducing microvortices in the air within the channel.
Dependencies are inferred from the claim text.