Rough channel microfluidic devices

B - Operations – Transporting – 01 – L

Patent

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Details

B01L 3/00 (2006.01) F15D 1/06 (2006.01)

Patent

CA 2628791

There is provided a rough microfluidic channel for use, for example, in a lateral flow assay device. The rough microfluidic channel has a roughness greater than a similar channel that is smooth, as measured by a Reynolds number for flow under otherwise identical conditions, which is at least 50 percent greater than the Reynolds number for the smooth channel. Alternatively, the roughness may be greater than a similar channel that is smooth, as measured by the fill time which is at least 25 percent lower for said rough channel than said smooth channel.

La présente invention concerne un canal microfluidique rugueux destiné à être utilisé, par exemple, dans un dispositif de dosage à écoulement latéral. Ce canal microfluidique rugueux possède une rugosité supérieure à celle d'un canal similaire qui est lisse, telle que mesurée en nombre de Reynolds pour un écoulement dans des conditions par ailleurs identiques, qui est au moins 50 % supérieur au nombre de Reynolds mesuré pour le canal lisse. Dans une variante, la rugosité peut être supérieure à celle d'un canal similaire lisse, telle que mesurée par le temps de remplissage qui est au moins 25 % inférieur pour ce canal rugueux à celui du canal lisse.

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