SEARCH

SEARCH BY CITATION

Keywords:

  • biological template;
  • surface modification;
  • three-dimensional gold nanostructures;
  • surface plasmons;
  • infrared transmission
Thumbnail image of graphical abstract

The optical image shows a freestanding (silica-free) three-dimensional nanocrystalline gold replica of the valve of a Coscinodiscus asteromphalus (CA) diatom. On page 2550, Joseph W. Perry, Kenneth H. Sand-hage, and co-workers report the generation of such gold replicas via the use of a highly conformal and scalable wet chemical coating process. The quasiperiodic hexagonal hole pattern inherited from the native CA diatom valve enables the gold replica to exhibit plasmon-mediated extraordinary infrared transmission.