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      Self-assembled template-directed synthesis of one-dimensional silica and titania nanostructures

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      Author
      Acar H.
      Garifullin, R.
      Güler, Mustafa O.
      Date
      2011
      Source Title
      Langmuir
      Print ISSN
      0743-7463
      Volume
      27
      Issue
      3
      Pages
      1079 - 1084
      Language
      English
      Type
      Article
      Item Usage Stats
      137
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      129
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      Abstract
      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.
      Keywords
      Biomineralization process
      Bottom up approach
      De novo design
      Electronic materials
      High aspect ratio
      High surface area
      Inorganic nanostructures
      Organic nanostructures
      Organic templates
      Organic-inorganic hybrid nanostructures
      Self assembly process
      Self-assembled
      Self-assembled template
      SEM
      TEM
      Template effects
      Titania nanostructures
      Titanium precursors
      Aspect ratio
      Biological materials
      Biomimetics
      Biomineralization
      Hybrid materials
      Metal ions
      Nanostructures
      Ocean habitats
      Silica
      Titanium
      Titanium dioxide
      Biomimetic materials
      nanomaterial
      silicon dioxide
      titanium
      article
      chemical structure
      chemistry
      circular dichroism
      infrared spectroscopy
      liquid chromatography
      mass spectrometry
      nanotechnology
      scanning electron microscopy
      transmission electron microscopy
      ultrastructure
      X ray diffraction
      Chromatography, Liquid
      Circular Dichroism
      Mass Spectrometry
      Microscopy, Electron, Scanning
      Microscopy, Electron, Transmission
      Molecular Structure
      Nanostructures
      Nanotechnology
      Silicon Dioxide
      Spectroscopy, Fourier Transform Infrared
      Titanium
      X-Ray Diffraction
      Permalink
      http://hdl.handle.net/11693/22026
      Published Version (Please cite this version)
      http://dx.doi.org/10.1021/la104518g
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      • Institute of Materials Science and Nanotechnology (UNAM) 1873
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