title: Cross-linking Bi2S3 ultrathin nanowires: a platform for nanostructure formation and biomolecule detection.
abstract: This paper describes the use of chemical cross-linking of ultrathin inorganic nanowires as a bottom-up strategy for nanostructure fabrication as well as a chemical detection platform. Nanowire microfibers are produced by spinning a nanowire dispersion into a cross-linker solution at room temperature. Nanomembranes with thicknesses down to 50 nm were obtained by injecting the nanowire dispersion at the cross-linker-solution/air interface. Furthermore, the sensitivity of the nanowire to amine cross-linkers allowed development of a novel sensing platform for small molecules, like the neurotransmitter serotonin, with detection limits in the picomolar regime.
authors.affiliation: Materials Chemistry Research Group, Lash Miller Chemical Laboratories, Department of Chemistry, University of Toronto, Toronto, ON, Canada.
authors.forename: Ludovico
authors.initials: L
authors.lastname: Cademartiri
authors.forename: Francesco
authors.initials: F
authors.lastname: Scotognella
authors.forename: Paul G
authors.initials: PG
authors.lastname: O'Brien
authors.forename: Bettina V
authors.initials: BV
authors.lastname: Lotsch
authors.forename: Jordan
authors.initials: J
authors.lastname: Thomson
authors.forename: Srebri
authors.initials: S
authors.lastname: Petrov
authors.forename: Nazir P
authors.initials: NP
authors.lastname: Kherani
authors.forename: Geoffrey A
authors.initials: GA
authors.lastname: Ozin
mesh_terms: D001729:Bismuth / Q000737:chemistry*; D053770:Nanowires; D013440:Sulfides / Q000737:chemistry*
chemical_list: D013440:Sulfides; D001729:Bismuth; C049897:bismuth sulfide