title: A fast passive and planar liquid sample micromixer.
abstract: A novel microdevice for passively mixing liquid samples based on surface tension and a geometrical mixing chamber is presented. Due to the laminar flow regime on the microscale, mixing becomes difficult if not impossible. We present a micromixer where a constantly changing time dependent flow pattern inside a two sample liquid plug is created as the plug simply passes through the planar mixer chamber. The device requires no actuation during mixing and is fabricated using a single etch process. The effective mixing of two coloured liquid samples is demonstrated.
authors.affiliation: Microsystem Technology, Department of Signals, Sensors and Systems, Royal Institute of Technology, SE 100 44, Stockholm, Sweden.
authors.forename: Jessica
authors.initials: J
authors.lastname: Melin
authors.forename: Guillem
authors.initials: G
authors.lastname: Gimenéz
authors.forename: Niclas
authors.initials: N
authors.lastname: Roxhed
authors.forename: Wouter
authors.initials: W
authors.lastname: van der Wijngaart
authors.forename: Göran
authors.initials: G
authors.lastname: Stemme