title: Carbon nanotube-nucleobase hybrids: nanorings from uracil-modified single-walled carbon nanotubes.
abstract: Single-walled carbon nanotubes (SWCNTs) have been covalently functionalized with uracil nucleobase. The hybrids have been characterized by using complementary spectroscopic and microscopic techniques including solid-state NMR spectroscopy. The uracil-functionalized SWCNTs are able to self-assemble into regular nanorings with a diameter of 50-70 nm, as observed by AFM and TEM. AFM shows that the rings do not have a consistent height and thickness, which indicates that they may be formed by separate bundles of CNTs. The simplest model for the nanoring formation likely involves two bundles of CNTs interacting with each other via uracil-uracil base-pairing at both CNT ends. These nanorings can be envisaged for the development of advanced electronic circuits.
authors.affiliation: CNRS, Institut de Biologie Moléculaire et Cellulaire, Laboratoire d'Immunologie et Chimie Thérapeutiques, Strasbourg, France.
authors.forename: Prabhpreet
authors.initials: P
authors.lastname: Singh
authors.forename: Francesca Maria
authors.initials: FM
authors.lastname: Toma
authors.forename: Jitendra
authors.initials: J
authors.lastname: Kumar
authors.forename: V
authors.initials: V
authors.lastname: Venkatesh
authors.forename: Jesus
authors.initials: J
authors.lastname: Raya
authors.forename: Maurizio
authors.initials: M
authors.lastname: Prato
authors.forename: Sandeep
authors.initials: S
authors.lastname: Verma
authors.forename: Alberto
authors.initials: A
authors.lastname: Bianco
mesh_terms: D002244:Carbon / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D037742:Nanotubes, Carbon / Q000737:chemistry*; D014498:Uracil / Q000737:chemistry*
chemical_list: D037742:Nanotubes, Carbon; D014498:Uracil; D002244:Carbon