title: Nanoparticle superlattice engineering with DNA.
abstract: A current limitation in nanoparticle superlattice engineering is that the identities of the particles being assembled often determine the structures that can be synthesized. Therefore, specific crystallographic symmetries or lattice parameters can only be achieved using specific nanoparticles as building blocks (and vice versa). We present six design rules that can be used to deliberately prepare nine distinct colloidal crystal structures, with control over lattice parameters on the 25- to 150-nanometer length scale. These design rules outline a strategy to independently adjust each of the relevant crystallographic parameters, including particle size (5 to 60 nanometers), periodicity, and interparticle distance. As such, this work represents an advance in synthesizing tailorable macroscale architectures comprising nanoscale materials in a predictable fashion.
authors: Department of Chemistry, Northwestern University, Evanston, IL 60208, USA.
authors: Robert J
authors: RJ
authors: Macfarlane
authors: Byeongdu
authors: B
authors: Lee
authors: Matthew R
authors: MR
authors: Jones
authors: Nadine
authors: N
authors: Harris
authors: George C
authors: GC
authors: Schatz
authors: Chad A
authors: CA
authors: Mirkin
mesh_terms: D001483:Base Sequence; D003460:Crystallization; D003461:Crystallography; D004247:DNA / Q000737:chemistry*; D004738:Engineering; D053768:Metal Nanoparticles / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D009693:Nucleic Acid Hybridization; D009841:Oligonucleotides / Q000737:chemistry; D010316:Particle Size; D053838:Scattering, Small Angle; D013816:Thermodynamics
chemical_list: D009841:Oligonucleotides; D004247:DNA