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Keywords:

  • Biomaterials;
  • Photonic crystals, colloidal;
  • Sol-gel synthesis;
  • Zirconia

Abstract

The inside cover features a schematic illustration (right) and three representative electron microscopy images (left) of photonic-crystal strips with controlled curvature. As reported by Kitaev and co-workers on p. 2481, the curvature is induced by infiltration of polymer opal with alkoxide precursors to attain an overlayer that experiences controllable shrinkage upon hydrolysis. Both continuity and high structural order are perfectly preserved throughout precursor infiltration and polymer microsphere removal.