title: Droplet on demand system utilizing a computer controlled microvalve integrated into a stiff polymeric microfluidic device.
abstract: An integrated microvalve fabricated in a stiff polymeric (polycarbonate) device allows for formation of droplets and bubbles of arbitrary volumes and at arbitrary times of emission. Predesigned protocols of formation of sequences of volumes, intervals between the droplets and their chemical compositions can be practically and reproducibly realised and controlled from a personal computer. The design of the microvalve enables its utilization in chips made in a range of other materials, including plastics and glass and in devices operated both with positive and negative pressure providing a useful module for a range of applications of microfluidic droplet systems.
authors.affiliation: Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Churski
authors.forename: Jacek
authors.initials: J
authors.lastname: Michalski
authors.forename: Piotr
authors.initials: P
authors.lastname: Garstecki