Figure 3.

Typical microfluidic manipulations that arise due to the fluid-structural interaction between the SAW and a liquid drop placed on the SAW substrate. In the order of increasing rf power applied to the IDTs, the drop vibrates, translates (the left image shows the translation of a drop on the bare lithium niobate substrate, which is hydrophilic, and the right image shows the same drop translating on a substrate which has been coated with a hydrophobic substance), forms a long slender jet, and, eventually atomizes.