Biomimetic self-healing superamphiphobicity is reported on a rough alumina surface with a large number of nanopores that act as nanoreserviors for low surface energy materials that can consecutively release and heal the damaged surface.

Multiple facet supported alumina nanowires are produced very efficiently in a very short time via high field anodization; upon modification with perfluorosilane, the surface becomes super-repellent towards a broad range of liquids, which includes (salted) water, water emulsion, common organic liquids like glycerol and alkanes, and a variety of lubrication oils including ionic liquids, poly(α-olefin), polydimethylsiloxane oils etc.