title: Deposition of DNA Nanostructures on Highly Oriented Pyrolytic Graphite.
abstract: We report the deposition of DNA origami nanostructures on highly oriented pyrolytic graphite (HOPG). The DNA origami goes through a structural rearrangement and the DNA base is exposed to interact with the graphite surface. Exposure to ambient air, which is known to result in a hydrophilic-to-hydrophobic wetting transition of HOPG, does not significantly impact the deposition yield or the shape deformation of DNA nanostructures. The deposited DNA nanostructures maintain their morphology for at least a week and promote site-selective chemical vapor deposition of SiO2. This process is potentially useful for a range of applications that include but are not limited to nanostructure fabrication, sensing, and electronic and surface engineering.
authors.affiliation: Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States.
authors.forename: Karen B
authors.initials: KB
authors.lastname: Ricardo
authors.affiliation: Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States.
authors.forename: Anqin
authors.initials: A
authors.lastname: Xu
authors.affiliation: Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Salim
authors.affiliation: Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhou
authors.affiliation: Department of Chemistry, University of Pittsburgh , Pittsburgh, Pennsylvania 15260, United States.
authors.forename: Haitao
authors.identifier: 0000-0003-3628-5688
authors.initials: H
authors.lastname: Liu
mesh_terms: D004247:DNA / Q000737:chemistry*; D004277:DNA, Single-Stranded / Q000737:chemistry; D006108:Graphite / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D009690:Nucleic Acid Conformation; D012822:Silicon Dioxide / Q000737:chemistry; D017155:Wettability
chemical_list: D004277:DNA, Single-Stranded; D012822:Silicon Dioxide; D006108:Graphite; D004247:DNA