title: Connecting the nanodots: programmable nanofabrication of fused metal shapes on DNA templates.
abstract: We present a novel method for producing complex metallic nanostructures of programmable design. DNA origami templates, modified to have DNA binding sites with a uniquely coded sequence, were adsorbed onto silicon dioxide substrates. Gold nanoparticles functionalized with the cDNA sequence were then attached. These seed nanoparticles were later enlarged, and even fused, by electroless deposition of silver. Using this method, we constructed a variety of metallic structures, including rings, pairs of bars, and H shapes.
authors: Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors: M
authors: M
authors: Pilo-Pais
authors: S
authors: S
authors: Goldberg
authors: E
authors: E
authors: Samano
authors: T H
authors: TH
authors: Labean
authors: G
authors: G
authors: Finkelstein
mesh_terms: D004247:DNA / Q000737:chemistry*; D006046:Gold / Q000737:chemistry; D053768:Metal Nanoparticles; D013698:Templates, Genetic
chemical_list: D006046:Gold; D004247:DNA