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Keywords:

  • biomimetics;
  • coating;
  • CVD;
  • replication;
  • silicates
Thumbnail image of graphical abstract

Silica coats for butterfly wings: The oxidation of silane with hydrogen peroxide is conducted on the surface of delicately structured biological specimens (templates), to produce a thin silica coating that leaves the underlying structure unharmed. Removal of the template by calcination leaves a precise replica of the original specimen (see SEM image of a silica replica obtained from a fly wing). The method is also proposed as a novel means of conservation for sensitive archaeological specimens.