Figure 4

Various natural super-hydrophobic surfaces: (a) water droplets on a taro leaf, (b) SEM image of the taro leaf surface, (c) water droplets on an India canna leaf, (d) SEM image of the India canna leaf surface, (e) water droplet on a rice leaf, (f) SEM image of the rice leaf surface. With permission from Elsevier, Copyright 2007.