SEARCH

SEARCH BY CITATION

Keywords:

  • Biomineralization;
  • Magnetic properties;
  • Nanocrystals;
  • Nickel;
  • Peptides

In nature, peptides bind metals reproducibly and selectively via specific amino acid sequences, producing nanocrystals in controlled sizes and morphologies. A novel method of growing uniform nanocrystals directly on biological nanotubes by immobilizing synthetic Ni-mineralizing peptides on the nanotubes is reported (see Figure). Control of the Ni nanocrystal size is a function of pH, enabling tunability of magnetic properties in the resulting nanotube.