Superparamagnetic Iron Oxide Nanoparticles

  • Synthesis route via co-precipitation or thermal decomposition
  • Size: 8 – 10 nm
  • Silica coating and subsequent doping with different types of organic dye
  • Hydrophilic surface with terminal Fe-OH or Si-OH groups
  • Depending on fabrication process, in coated form stable in aqueous and organic media over a wide ph range
  • Separation by way of sedimentation, centrifugation or magnetically
  • Different surface functionalities (e.g. -OH, -SH, -NH2, -COOH) for covalent bonding of proteins, antibodies or other molecules