Two-dimensional nanoparticle arrays show the organizational power of robust DNA motifs.

Zheng J, Constantinou PE, Micheel C, Alivisatos AP, Kiehl RA, Seeman NC
Nano Lett. 2006 6 (7): 1502-4

PMID: 16834438 · PMCID: PMC3465979 · DOI:10.1021/nl060994c

The bottom-up spatial organization of potential nanoelectronic components is a key intermediate step in the development of molecular electronics. We describe robust three-space-spanning DNA motifs that are used to organize nanoparticles in two dimensions. One strand of the motif ends in a gold nanoparticle; only one DNA strand is attached to the particle. By using two of the directions of the motif to produce a two-dimensional crystalline array, one direction is free to bind gold nanoparticles. Identical motifs, tailed in different sticky ends, enable the two-dimensional periodic ordering of 5 and 10 nm diameter gold nanoparticles.

MeSH Terms (5)

DNA Gold Microscopy, Electron, Transmission Nanostructures Nucleic Acid Conformation

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