An apparatus is provided for manipulating droplets. The apparatus is a single-sided electrode design in which all conductive elements are contained on one surface on which droplets are manipulated. An additional surface can be provided parallel with the first surface for the purpose of containing the...http://www.google.de/patents/US6911132?utm_source=gb-gplus-sharePatent US6911132 - Apparatus for manipulating droplets by electrowetting-based techniques