Comparative Study of Secondary Structure and Interactions of the R5 Peptide in Silicon Oxide and Titanium Oxide Coprecipitates Using Solid-State NMR Spectroscopy.

ABSTRACT: A biomimetic, peptide-mediated approach to inorganic nanostructure formation is of great interest as an alternative to industrial production methods. To investigate the role of peptide structure on silica (SiO₂) and titania (TiO₂) morphologies, we use the R5 peptide domain derived from the silaffin protein to produce uniform SiO₂ and TiO₂ nanostructures from the precursor silicic acid and titanium bis(ammonium lactato)dihydroxide, respectively. The resulting biosilica and biotitania nanostructures are characterized using scanning electron microscopy. To investigate the process of R5-mediated SiO₂ and TiO₂ formation, we carry out 1D and 2D solid-state NMR (ssNMR) studies on R5 samples with uniformly ¹³C- and ¹

SUBMITTER: Buckle EL 

PROVIDER: S-EPMC6786483 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature