Micro-fluidic anti-microbial filter

Details Micro-fluidic anti-microbial filter Micro-fluidic anti-microbial filter

B - Operations, Transporting

01

D

B01D 69/10 (2006.01) A61L 2/02 (2006.01) B01D 61/18 (2006.01) B01D 63/08 (2006.01) B01D 67/00 (2006.01) B01D 69/02 (2006.01) B01D 71/02 (2006.01) B81B 1/00 (2006.01)

Patent

CA 2475800

An anti-microbial filter (105) for a micro-fluidic system (100) includes a silicon-based filter membrane (213) having holes (218) formed therein. The membrane (213) is formed on a substrate (211). One side of the filter membrane (213) has an anti-microbial coating (216) between the holes (218) on the filter membrane (213) and the other side can include filter supports formed from a silicon substrate. A method for making the anti-microbial filter (105) includes forming a filter membrane (213) on a substrate (211), forming holes (218) in the membrane (213) by providing a filter mask (215) and etching holes (218) through holes (222) in the mask (215). Then portions of the substrate (211) are removed from the filter membrane (213) using a masking and etching process to expose the holes (218). An anti-microbial coating is applied to the membrane (213) adjacent the holes (218).

La présente invention a trait à un filtre antimicrobien (105) pour un système microfluidique (100) comportant une membrane filtrante à base de silicium (213) comprenant des orifices (210) qui y sont formés. La membrane (213) est formée sur un substrat (211). Une face de la membrane filtrante (213) présente un revêtement antimicrobien (216) entre les orifices (210) sur la membrane filtrante (213) et l'autre face peut comprendre des supports de filtre formés à partir d'un substrat de silicium. L'invention a trait également à un procédé permettant la fabrication d'un filtre antimicrobien (105) comportant la formation d'une membrane filtrante (213) sur un substrat (211), la formation d'orifices (218) dans la membrane (213) en réalisant un masque de filtre (215) et en gravant de orifices (218) à travers des trous (222) dans le masque (215). Ensuite, on enlève les portions du substrat (211) de la membrane filtrante (213) en utilisant un procédé de masquage et de gravure en vue d'exposer les orifices (218). On applique un revêtement antimicrobien à la membrane (213) adjacent aux orifices (218).

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