Figure 2.

Device design with 110 successive chambers 150 μm wide and 300 μm long, adapted from Brosseau et al. [21]. Droplets are produced in a flow focusing droplet maker (green enlarged area) and then flowed into a series of chambers. The two-dimensional projection of the contour of the droplets remained to a good approximation circular at the entrance to the first chamber but the observed deformation gradually increased as the droplet moved along the delay line (red enlarged area). It takes approximately 10 ms for a droplet to flow through each chamber (blue enlarged area).