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

ABSTRACT: 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.

SUBMITTER: Zheng J

PROVIDER: S-EPMC3465979 | biostudies-literature | 2006 Jul

REPOSITORIES: biostudies-literature

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

Zheng Jiwen J Constantinou Pamela E PE Micheel Christine C Alivisatos A Paul AP Kiehl Richard A RA Seeman Nadrian C NC

Nano letters 20060701 7

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. ...[more]

PMID: 16834438

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