Figure 3
From: Three-dimensional digital microfluidic manipulation of droplets in oil medium

3D manipulation of a droplet by EW actuations.
(a) Horizontal transport of a sessile droplet, (b) mixing inside a sessile droplet by oscillation, (c) upward vertical transport of a sessile droplet, (d) horizontal transport of a hanging droplet and (e) downward vertical transport of a hanging droplet. The dashed line and arrow indicate the electrode plate and the moving direction of each droplet, respectively.