nn6b03076_si_001.pdf (3.58 MB)
Ordering Gold Nanoparticles with DNA Origami Nanoflowers
journal contribution
posted on 2016-06-24, 00:00 authored by Robert Schreiber, Ibon Santiago, Arzhang Ardavan, Andrew J. TurberfieldNanostructured
materials, including plasmonic metamaterials made
from gold and silver nanoparticles, provide access to new materials
properties. The assembly of nanoparticles into extended arrays can
be controlled through surface functionalization and the use of increasingly
sophisticated linkers. We present a versatile way to control the bonding
symmetry of gold nanoparticles by wrapping them in flower-shaped DNA
origami structures. These “nanoflowers” assemble into
two-dimensonal gold nanoparticle lattices with symmetries that can
be controlled through auxiliary DNA linker strands. Nanoflower lattices
are true composites: interactions between the gold nanoparticles are
mediated entirely by DNA, and the DNA origami will fold into its designed
form only in the presence of the gold nanoparticles.