Abstract: The present invention relates to a microfluidic device (10) suitable for accommodating an aqueous liquid, the device having essentially a planar shape, which device comprises at least one conduit (11) fluidically connecting at least two structures selected from compartments, reservoirs (14) and/or ports (15, 62). The conduit comprises at least one bend (12) describing an angle of between ?85° and ?275° around an axis orthogonal to the planar shape. The planar shape is arranged in an angle of between +45° and ?45° relative to the direction of the force of gravity (G), or a centrifugal force (Fc) applied to the microfluidic device.