DNA-templated three-branched nanostructures for nanoelectronic devices.
Three-branched DNA molecules have been designed and assembled from oligonucleotide components. These nucleic acid constructs contain double- and single-stranded regions that control the hybridization behavior of the assembly. Specific localization of a single streptavidin molecule at the center of the DNA complex has been investigated as a model system for the directed placement of nanostructures. Highly selective silver and copper metallization of the DNA template has also been characterized. Specific hybridization of these DNA complexes to oligonucleotide-coupled nanostructures followed by metallization should provide a bottom-up self-assembly route for the fabrication and characterization of discrete three-terminal nanodevices.
Becerril
Héctor A
HA
Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, USA.
Stoltenberg
Randall M
RM
Wheeler
Dean R
DR
Davis
Robert C
RC
Harb
John N
JN
Woolley
Adam T
AT
D003300:Copper / Q000737:chemistry; D004247:DNA / Q000737:chemistry*; D004277:DNA, Single-Stranded / Q000737:chemistry; D004581:Electronics / Q000379:methods*; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D036103:Nanotechnology / Q000379:methods*
D004277:DNA, Single-Stranded; D003300:Copper; D004247:DNA