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Keywords:

  • microfabrication;
  • nanoparticles;
  • reaction diffusion;
  • self-assembly
Thumbnail image of graphical abstract

Reaction-diffusion processes initiated from the surfaces of small gel or polymer particles can fabricate complex three-dimensional structures inside these particles. Bartosz Grzybowski and co-workers show on page 1911 that the core/shell particles thus prepared can be further modified “remotely” by electrochemical exchange reactions. The image shows four cubical particles, each having a spherical core fabricated by reaction-diffusion and comprising copper nanoparticles.