Bio‐Inspired Instability‐Induced Hierarchical Patterns Having Tunable Anisotropic Wetting Properties (Adv. Mater. Interfaces 14/2023)

Fabrication of Hierarchically-Patterned Surfaces In article number 2300039, So Nagashima, Ko Suzuki, and colleagues introduce a bottom-up method for fabricating bio-inspired hierarchical patterns with tunable anisotropic wetting properties. This method exploits the surface instability of bilayers comprising a gold nanofilm on a substantially pre-stretched elastomer substrate. The wetting anisotropy can be finely tuned by simply adjusting the magnitude of substrate pre-stretches and film thickness.