Dispersions of monodisperse hybrid rod-like particles by mineralization of filamentous viruses

Langmuir. 2013 Jun 25;29(25):8010-6. doi: 10.1021/la401170m. Epub 2013 Jun 11.

Abstract

In this work, we report on the synthesis through a direct chemical approach of hybrid organic/inorganic rod-like particles with a very high aspect ratio (length/diameter) by the use of a biotemplate, the fd virus. A synthetic route is proposed based on an initial step of steric stabilization of the colloidal template by hydrophilic polymer grafting. Thanks to this polymer functionalization, the filamentous viruses are well-dispersed in solution during their mineralization by different inorganic salts, leading to suspensions of individual hybrid rod-like particles such as virus/SiO2 and virus/TiO2. This aqueous solution based approach is shown to be highly reproducible, scalable for large production synthesis, and versatile to different inorganic materials.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Microscopy, Electron, Transmission
  • Particle Size
  • Silicon Dioxide / chemistry
  • Titanium / chemistry
  • Viruses / chemistry*
  • Viruses / ultrastructure

Substances

  • titanium dioxide
  • Silicon Dioxide
  • Titanium