Table 1 Nanoparticle characteristics and measurement methods
From: Synthesis and Cytotoxicity of Y2O3 Nanoparticles of Various Morphologies
| Measurement | Sample 1 | Sample 2 | Sample 3 |
|---|---|---|---|
| TEM | |||
| Morphology | Spheres | Platelets | Rods |
| Size (nm) | 5 | 140 | 30 × 150 |
| XRD | |||
| Phase | Cubic | Cubic | Cubic |
| Crystallite size (nm) | 3 | 4 | 11 |
| BET | |||
| Surface area (m2/g) | 150 | 109 | 93 |
| Size (nm), spherical shape factor | 8 | 11 | 13 |
| Size (nm), morphology shape factor | 8, 6 | 24, 8.6 | 45, 25 |
| Carbon analysis (wt%) | 3.13 | 11.45 | 1.68 |
| Ligand coverage (molecules/nm2) | 0.6 | 3 | 5 |
| Zeta potential (mV) | −13 | −27 | −28 |
| DLS (μm) volume weighted mean | ~1.5 | ~1.5 | ~1.5 |
| SLS (μm) volume weighted mean | 0.7 | 0.7 | 0.8 |