Abstract
This paper reports micro batch operation systems, which consists of two liquid dispensers and a chamber. To make them, Laplace pressure valves, which were prepared by photo patterning method to make wettabilty pattern, were utilized. Pattern of 5 pressure barriers was prepared in a microchannel. 900 pL and 450pL liquid fragments were measured, transported and mixed in the chamber. © 2006 Society for Chemistry and Micro-Nano Systems.