Table 1.
Summary of CuO NP characterization from ERCC
| Characterization parameters | Methods | CuO |
|---|---|---|
| Primary particle size | ||
|
dXRD* (nm) Specific surface area (SSA) (m2/g) dBET# (nm) Mean size (nm) |
X-ray diffraction Brunauer-Emmett teller (BET) BET TEM |
25.8 13.77 ± 0.68 70.9 ± 3.54 50.24 ± 10.99
|
| Hydrodynamic size in DI water (nm) | Dynamic light scattering | 507 ± 51 |
| Zeta potential in DI water (mV) | Dynamic light scattering | -19.0 ± 1.5 |
| Shape factors | ||
|
Aspect ratio ξ Circularity ψ Roundness ζ |
TEM TEM TEM |
1.345 ± 0.202 0.925 ± 0.037 0.759 ± 0.107 |
| Porosity | ||
|
Pore volume (cm3/g) Average pore size (nm) |
BET BET |
1.87 × 10–4 2.65 |
| Density (g/cm3) | Pycnometer (N2 volume replacement) | 6.1531 ± 0.0027 |
| Purity | Inductively coupled plasma mass spectrometry (ICP-MS) | 98.21% ± 6.11% Cu |
| Endotoxin levels | ||
|
Concentration in suspension (EU/mL) Concentration per mass of ENM (EU/mg) |
Recombinant factor C Recombinant factor C |
0.021 2.141 |
