DNA-linked superlattices get into shape.

The article discusses how advances in the control of the shape, bonding direction and valency of DNA-coated nanoparticles allow the synthesis of nanoparticle crystallites of increasing complexity. Topics include DNA-assisted crystallization of nanoparticle superlattices, lattices synthetized from DNA-linked nanoparticles resembling close-packed structure, use of X-ray diffraction in analyzing crystal growth, and formation of uniform single crystals from nanoparticles.