Biomimetics: Tunable Anisotropic Wettability of Rice Leaf-Like Wavy Surfaces (Adv. Funct. Mater. 5/2013)



original image

Inspired by the hierarchical structures of rice leaf surfaces, synthetic rice leaf-like wavy surfaces with tunable anisotropic wettability are described by Kilwon Cho and co-workers on page 547. The nanometer scale roughness of the rice leaf-like surfaces is controlled to yield tunable anisotropic wettability and hydrophobic properties that transition between the anisotropic/pinned, anisotropic/rollable, and isotropic/rollable water droplet behavior states.