Controlling the lattice parameters of gold nanoparticle FCC crystals with duplex DNA linkers

TitleControlling the lattice parameters of gold nanoparticle FCC crystals with duplex DNA linkers
Publication TypeJournal Article
Year of Publication2008
AuthorsHill, HD, Macfarlane, RJ, Senesi, AJ, Lee, B, Park, SYong, Mirkin, CA
JournalNano Letters
Volume8
Issue8
Pagination2341 - 2344
Date Published2008/08//
ISBN Number1530-6984
Abstract

DNA-functionalized gold nanoparticles can be used to induce the formation and control the unit cell parameters of highly ordered face-centered cubic crystal lattices. Nanoparticle spacing increases linearly with longer DNA interconnect length, yielding maximum unit cell parameters of 77 nm and 0.52% inorganic-filled space for the DNA constructs studied. In general, we show that longer DNA connections result in a decrease in the overall crystallinity and order of the lattice due to greater conformational flexibility.