Work

Two-Dimensional Nanoparticle Arrays Show the Organizational Power of Robust DNA Motifs

Year: 2006

Type: article

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.

Source: Nano Letters

DOI: 10.1021/nl060994c

Authors: Jiwen Zheng, Pamela E. Constantinou, Christine Micheel, A. Paul Alivisatos, Richard A. Kiehl, Nadrian C. Seeman

Institutions: University of Minnesota, New York University, University of California, Berkeley

Language: English

Topic: Advanced biosensing and bioanalysis techniques

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: green

Funder: National Institute of General Medical Sciences

Awards: Physical Chemistry of Recombinational intermediates, G5356741539, Physical Chemistry of Recombinational Intermediates