summarized in Figure , we explored the kinetics of the growth of interfacial roughness in the following experiments. Specifically, an optically reflective circular aluminum foil was first attached to the top of the domed disk, which was initially in perfect contact with the H-PDMS coating. After attaching the aluminum foil to the domed disk, the glass slide was kept in a Petri dish following which enough water (or salt water) was added to it. At this stage, the aluminum foil remained at the same level as the air-water interface, while the adhesive interface was totally submerged in the aqueous phase. A Foton probe placed about 2 mm above the coating registered the vertical displacement (Δℎ) of the foil as a function of time. As the H-PDMS swelled and the instability developed, the aluminum foil moved vertically outward, which was detected by the Foton probe.