Patent ID: 7955575
Filing Date: 2011-06-07
Classification: B01L

Abstract:
1. A microfluidic device being in a dry state that is capable of being rehydrated, said device comprises a set of one or more covered microchannel structures manufactured in the surface of a planar substrate, wherein each microchannel structures comprises: a) more than one functional part wherein at least one of said functional parts is selected from the group consisting of a volume defining unit, a mixing cavity, and a waste cavity; b) wherein reduced non-specific adsorption and hydrophilicity have been optimized by a coating exposing a non-ionic hydrophilic polymer on the surface of at least one of said at least one functional parts such that an aqueous liquid is capable of entering the functional part by self-suction when the liquid has passed the entrance of the functional part; and c) wherein the device is adapted for mass transport of solutes and/or particles between different functional parts of each microchannel structure by a liquid flow caused by non-electrokinetic forces.