Study on single-droplet isolation based on microvalve hydrodynamic resistance control
Present isolated methods are difficult to overcome the problem of random distribution of droplets in the fluids,which results in the difficulty to isolate single droplets stably,hence,lots of droplets are wasted in the isolated process. Aiming at above problems,droplet spacing is reduced by arranging the droplet densely to eliminate this effect,and then,the droplet spacing is increased to control droplet intervals. The microvalve is used to reduce the slope of the droplet interval changing with pressure by more than 1000 times to achieve precise interval control. The droplets with fixed intervals are collected through the capillary tube. The waste-free isolation of 5 drops/min can be achieved in the stable state.
droplet isolationmicrovalveflow resistance controldroplet transfer
万方数据
维普
