Figure 5
From: A Modular Microfluidic Device via Multimaterial 3D Printing for Emulsion Generation

(a) Schematic and (b) the printed sample of assembled passive double emulsion generation device with single inlet module, respectively. (c) High-speed video frames showing the passive generation of W/O/W double emulsions with different number of inner droplets. (d) Photographs of different W/O/W double emulsions.