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PNAS Cover

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Created 07/31/2001

Negligibly charged colloidal microspheres (blue) aggregate in aqueous solution but undergo a stabilizing transition upon addition of highly charged nanoparticles (red). This type of self-organization, or haloing, provides a new method for tailoring the behavior of complex fluids.

Credits

  • V. Tohver
  • J. A. Lewis
  • C. Martinez
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