Table 2. Hydrodynamic diameters of the NPs obtained by dynamic light-scattering (DLS).
| MilliQ water | Culture medium | |||
|---|---|---|---|---|
| Average size (nm) |
PDI | Average size (nm) |
PDI | |
| SPION (0 h) | 44.2 ± 4.7 | 0.22 ± 0.05 | 116 ± 8.2 | 0.32 ± 0.03 |
| SiNP (0 h) | 210 ± 32.3 | 0.18 ± 0.04 | 153 ± 23.1 | 0.31 ± 0.03 |
| CNTCOOH (0 h) | 219 ± 3.8 | 0.18 ± 0.01 | 261 ± 3.5 | 0.25 ± 0.01 |
| SPION (24 h) | 847 ± 44.3 | 0.48 ± 0.03 | 1081 ± 83.2 | 0.41 ± 0.06 |
| SiNP (24 h) | 340 ± 19.8 | 0.54 ± 0.02 | 1140 ± 105.1 | 0.60 ± 0.03 |
| CNTCOOH (24 h) | 295 ± 21.1 | 0.20 ± 0.01 | 634 ± 13.9 | 0.23 ±0.02 |
Data are presented as the means ± SEM (n = 4). Abbreviations: PDI = Polydispersity index; SPIONs, superparamagnetic iron oxide nanoparticles; SiNPs, silica nanoparticles; CNTCOOHs, carboxylated multiwalled carbon nanotubes.