Patent ID: 7833486
Filing Date: 2010-11-16
Classification: B01J,B01L,F16K,Y10T

Abstract:
1. A microfluidic device comprising a microconduit for transport and/or processing of liquid, wherein said microconduit comprises a reusable passive valve and/or anti-wicking function and/or inlet vent to ambient atmosphere and/or outlet vent to ambient atmosphere, wherein the inner surface of at least one such passive valve and/or anti-wicking function and/or inlet vent to ambient atmosphere and/or outlet vent to ambient atmosphere comprises a smooth hydrophilic liquid contact surface area (surface area 1 ) that is delineated in at least one direction by a boundary to a hydrophobic surface area (surface area 2 ), wherein said hydrophobic surface area 2 comprises a smooth portion and a rough part that stretches along the boundary.