Droplet Drying Patterns on Solid Substrates: From Hydrophilic to Superhydrophobic Contact to Levitating Drops

<div>(a) Contact angle variations for a water droplet nontreated glass substrate (red solid curve) and PDMS substrate (blue-dashed curve); (b) normalized diameter of same drops on glass substrate (red solid curve) and PDMS substrate (blue-dashed curve).</div>

Advances in Condensed Matter Physics

fig4

Figure 4

Figure 4: Droplet Drying Patterns on Solid Substrates: From Hydrophilic to Superhydrophobic Contact to Levitating Drops 