Self-assembled template-directed synthesis of one-dimensional silica and titania nanostructures
| Autor: | Mustafa O. Guler, Ruslan Garifullin, Handan Acar |
|---|---|
| Přispěvatelé: | Güler, Mustafa O. |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Biomineralization
Inorganic nanostructures Electronic materials Biomimetic materials High aspect ratio Titanium precursors Mass Spectrometry Ocean habitats X-Ray Diffraction Biomimetics Spectroscopy Fourier Transform Infrared Electrochemistry Nanotechnology General Materials Science Metal ions infrared spectroscopy Spectroscopy Titanium silicon dioxide Molecular Structure Circular Dichroism article High surface area Silica Surfaces and Interfaces Silicon Dioxide Condensed Matter Physics Aspect ratio ultrastructure Titanium oxide Organic-inorganic hybrid nanostructures De novo design Self assembly process SEM nanomaterial Hybrid materials Hybrid material Self-assembled template scanning electron microscopy Nanostructure Materials science Silicon X ray diffraction Bottom up approach chemistry.chemical_element chemistry Microscopy Electron Transmission Self-assembled transmission electron microscopy liquid chromatography Organic nanostructures Titania nanostructures Biological materials Nanostructures Organic templates Nanofiber Biomineralization process TEM chemical structure Microscopy Electron Scanning Titanium dioxide Template effects Self-assembly Chromatography Liquid |
| Zdroj: | Langmuir |
| Popis: | Mineralized biological materials such as shells, skeleton, and teeth experience biomineralization. Biomimetic materials exploit the biomineralization process to form functional organic-inorganic hybrid nanostructures. In this work, we mimicked the biomineralization process by the de novo design of an amyloid-like peptide that self-assembles into nanofibers. Chemically active groups enhancing the affinity for metal ions were used to accumulate silicon and titanium precursors on the organic template. The self-assembly process and template effect were characterized by CD, FT-IR, UV-vis, fluorescence, rheology, TGA, SEM, and TEM. The self-assembled organic nanostructures were exploited as a template to form high-aspect-ratio 1-D silica and titania nanostructures by the addition of appropriate precursors. Herein, a new bottom-up approach was demonstrated to form silica and titania nanostructures that can yield wide opportunities to produce high-aspect-ratio inorganic nanostructures with high surface areas. The materials developed in this work have vast potential in the fields of catalysis and electronic materials. © 2011 American Chemical Society. |
| Databáze: | OpenAIRE |
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