title: Individualized silica nanohelices and nanotubes: tuning inorganic nanostructures using lipidic self-assemblies.
abstract: Diverse chiral nanometric ribbons and tubules formed by self-assembly of organic amphiphilic molecules could be transcribed to inorganic nanostructures using a novel sol-gel transcription protocol with tetraethoxysilane (TEOS) in the absence of catalyst or cosolvent. By controlling parameters such as temperature or the concentration of the different reactants, we could finely tune the morphology of the inorganic nanostructures formed from organic templates. This fine-tuning has also been achieved upon controlling the kinetics of both organic assembly formation and inorganic polycondensation. The results presented herein show that the dynamic and versatile nature of the organic gels considerably enhances the tunability of inorganic materials with rich polymorphisms.
authors.affiliation: Institut Europeen de Chimie et Biologie, Universite de Bordeaux CNRS UMR 5248, 2 rue Robert Escarpit, 33607 Pessac, France.
authors.forename: Thomas
authors.initials: T
authors.lastname: Delclos
authors.forename: Carole
authors.initials: C
authors.lastname: Aimé
authors.forename: Emilie
authors.initials: E
authors.lastname: Pouget
authors.forename: Aurélie
authors.initials: A
authors.lastname: Brizard
authors.forename: Ivan
authors.initials: I
authors.lastname: Huc
authors.forename: Marie-Hélène
authors.initials: MH
authors.lastname: Delville
authors.forename: Reiko
authors.initials: R
authors.lastname: Oda
mesh_terms: D008055:Lipids / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D012822:Silicon Dioxide / Q000737:chemistry*
chemical_list: D008055:Lipids; D012822:Silicon Dioxide