Table 2 NMs’ physico-chemical properties in the stock preparation
Nanomaterial | Size by TEM (nm) | Morphology (aspect ratio; variable used in similarity analyses) | HDD | ζ-Potential | |||||
|---|---|---|---|---|---|---|---|---|---|
By Intensity (nm)* | By Number (nm)* | PDI* | Mean (mV) | Conductivity (mS/cm) | Dilution factor | pH | |||
CeO2 NPs | 4.1 ± 0.6 | Spheric (1:1; 1) | 5.48 ± 0.6 | 3.7 ± 0.3 | 0.250 | − 34.7 ± 2.7 | 0.59 | 1:25 | 8.64 |
CeO2 aggregates | 6.2 ± 1.3 | Spheric (1:1; 1) | 180.3 ± 7.0 | 44.8 ± 5.4 | 0.405 | − 17.9 ± 1.0 | 0.03 | 1:40 | 7.95 |
CeO2 stamps | 15.3 ± 2.1 | Flat (3.75:3.75:1; 2.8) | 102.4 ± 5.0 | 33.3 ± 0.6 | 0.129 | − 25.0 ± 0.6 | 0.12 | 1:10 | 8.24 |
TiO2 NPs | 9.4 ± 2.8 | Spheric with anisotropy (1.25:1; 1.25) | 69.7 ± 7.3 | 33.2 ± 4.0 | 0.362 | − 48.3 ± 0.6 | 0.092 | 1:200 | 6.52 |
TiO2 aggregates | 9.4 ± 2.8 | Spheric with anisotropy (1.25:1; 1.25) | 197.9 ± 6.1 | 53.7 ± 25.7 | 0.357 | − 42.5 ± 0.1 | 0.020 | 1:200 | 6.52 |
TiO2 nanorods | L 142 ± 29 | Rod (3.7:1; 3.7) | 143.4 ± 2.8 | 87.4 ± 6.1 | 0.118 | − 45.8 ± 1.0 | 0.086 | 1:200 | 10.0 |
W 38.2 ± 7.9 | |||||||||
Ag 20 nm NPs | 23.9 ± 4.4 | Spheric (1:1; 1) | 50.7 ± 4.0 | 15.0 ± 5.7 | 0.282 | − 28.2 ± 6.7 | 0.04 | 1:125 | 6.71 |
Ag 50 nm NPs | 52.9 ± 4.8 | Spheric (1:1; 1) | 63.4 ± 1.0 | 38.0 ± 2.8 | 0.236 | − 43.3 ± 5.4 | 0.05 | 1:50 | 6.60 |
Ag nanowires | L 5–10 μm W 106 ± 14 | Wire (100:1 – 50:1; 75) | 1st 423 ± 177 |  | 0.226 | − 10.4 ± 0.7 | 0.01 | 1:50 | 6.8 |
2nd 5170 ± 490 |  | ||||||||