MICROFLUIDIC DEVICE WITH DEFORMABLE VALVE

摘要

The invention is notably directed to a microfluidic device (100) comprising: a first microchannel (31), a second microchannel (32), and a valve (50) comprising at least an input port (51) and an output port (52), said ports respectively connected to the first microchannel and the second microchannel, the valve designed to control a flow of a liquid (L) along a flow direction (z) defined by the ports, wherein the valve further comprises one or more walls (54, 56, 58, 20) joining the ports and defining a hollow chamber (53) that is wider than each of the microchannels in a direction perpendicular to the flow direction, said walls at least partly deformable along a deformation direction (- y) intersecting the flow direction, such that the walls can be given at least a first deformation state (S1) and a second deformation state (S2), the liquid being pulled along the flow direction substantially more in the second deformation state than in the first deformation state, by capillarity.