Controlling the lattice parameters of gold nanoparticle FCC crystals with duplex DNA linkers.
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.
Hill
Haley D
HD
Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208-3113, USA.
Macfarlane
Robert J
RJ
Senesi
Andrew J
AJ
Lee
Byeongdu
B
Park
Sung Yong
SY
Mirkin
Chad A
CA
D001483:Base Sequence; D003432:Cross-Linking Reagents / Q000737:chemistry*; D003460:Crystallization; D004247:DNA / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*
D003432:Cross-Linking Reagents; D006046:Gold; D004247:DNA