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

Figure 10

Different drying patterns obtained from varied conditions. (a) Coffee ring-like stain on hydrophilic substrate, reprinted with permission from [37]; (b) bowl-shaped relic on hydrophobic surface, reprinted with permission from [67]; (c) ring-shaped residue obtained from acoustic levitation, reprinted with permission from [68].

(a)

(b)

(c)