title: DNA-templated three-branched nanostructures for nanoelectronic devices.
abstract: 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.
authors.affiliation: Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, USA.
authors.forename: Héctor A
authors.initials: HA
authors.lastname: Becerril
authors.forename: Randall M
authors.initials: RM
authors.lastname: Stoltenberg
authors.forename: Dean R
authors.initials: DR
authors.lastname: Wheeler
authors.forename: Robert C
authors.initials: RC
authors.lastname: Davis
authors.forename: John N
authors.initials: JN
authors.lastname: Harb
authors.forename: Adam T
authors.initials: AT
authors.lastname: Woolley
mesh_terms: 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*
chemical_list: D004277:DNA, Single-Stranded; D003300:Copper; D004247:DNA