Fig. 1
From: Biomimetic coating-free surfaces for long-term entrapment of air under wetting liquids
Scanning electron micrographs of fifteen types of microtextures investigated in this work. The cavities were classified based on their profiles as simple cavities (SCs), reentrant cavities (RCs), and doubly reentrant cavities (DRCs). Further, for each profile, circular, square, and hexagonal shapes were tested. The square and hexagonal shapes were further classified based on the sharpness of the corners. Scale bars: (i) Solid black line refers to 200 µm, and (ii) White line refers to 10 µm
