Improvement on capillary pressure barrier

摘要

Problem to be solved: to provide an apparatus for controlling the shape and position of a meniscus of a movable fluid and fluid.Solution: there is a volume 152 for storing and moving the fluid 103 having a meniscusThe volume isA microfluidic channel comprising a substrate at the top and a substrate at the bottom;VolumeForming a meniscusAlignA first capillary pressure barrier 105 is provided which forms a boundary of fluid between a first lower volume and a second lower volume in the channel;The first capillary pressure barrier and the channel are formed on the bottom substrateVolumeFormed on the bottom substrateComprising a second capillary pressure barrier forming a fluid boundary between a second lower volume in the channel and a third lower volumeVolumeA first filling filling a fluid into a first lower volume andA second filler filling fluid into a third lower volumeA third filler filling fluid into the second lower volume andExhaust outlet to remove fluid from second lower volume.Diagram