| γ-Fe2O3 dSPION | Fe3O4 dSPION | |
---|---|---|---|
Particle morphology | Cubic crystalline structure with a primary particle size of 10 nm | Cubic crystalline structure with a primary particle size of 10 nm | |
Chemical Composition | Fe2/Fe3 = 0.2 | Fe2/Fe3 = 1.5 | |
Hydrodynamic diameter and Zeta Potential | |||
 Water | Size Range (nm) | 37.84–531.52 | 11.70–164.2 |
Median size population (nm) | 162.2 | 50.75 | |
Polydispersal index | 0.172 | 0.206 | |
Zeta Potential (mV) | −9.48 ± 0.95 | −13.5 ± 1.29 | |
 10% serum medium | Size Range (nm) | 18.17–220.10 | 28.21–141.8 |
Median size population (nm) | 58.77 | 43.82 | |
Polydispersal index | 0.267 | 0.265 | |
Zeta Potential | −3.38 ± 0.72 | −4.77 ± 1.02 |