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Keywords:

  • colloids;
  • monolayers;
  • nanoparticles;
  • oil–water interface;
  • self-assembly
Thumbnail image of graphical abstract

Let's get charged! Positively charged nanoparticles (NPs) spontaneously self-assemble into hexagonally close-packed lattices at a planar CH2Cl2–water interface (see figure). The self-assembly process is fully autonomous and occurs without any external manipulation.