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Keywords:

  • carbon nanostructures;
  • chemical vapor deposition;
  • drug delivery;
  • energy storage;
  • gold nanoparticles;
  • semiconductor nanocrystals
Thumbnail image of graphical abstract

Nitrogen-containing carbon nanotube cups are crosslinked with glutaraldehyde to form capsule-shaped nanostructures. Introduction of commercially available gold nanoparticles prior to the crosslinkage process results in their encapsulation within the interior cavity of the linked structures (see image). A similar encapsulation of ZnS:Tb nanoparticles shows the general applicability of the system. Such a facile protocol alludes to drug-delivery and energy-storage applications.