Fig. 3. (a) Microfluidic chip design for reactive W/O and O/W encapsulation and the reactive encapsulation monitoring. (b) General readout: droplet deformation as a function of time in a single chamber and micrograph images of droplet deformations bearing a thin polymer film at the water–oil interface at different stages at 160 and 760 ms. D contains the first monomer being dispersed in CF1. Thereafter, CF2 is introduced to the flow that contains the second monomer. The mixing of CF1 and CF2 occurs by diffusion (scale bars: 50 μm).
