Table 1. . Iron oxide nanoparticle Z-average size from dynamic light scattering in deionized water and cell culture media and zeta potential represented as average ± standard deviation of three independent samples (n = 3).
| Fe3O4 nanoparticle system | DI water | DMEM + 10% FBS | Zeta potential (mV) | ||
|---|---|---|---|---|---|
| Size (nm) | PDI | Size (nm) | PDI | ||
| Uncoated | 136.5 ± 1.8 | 0.2 ± 0.02 | 355.1 ± 23.2 | 0.3 ± 0.04 | 17.3 ± 4.1 |
| Dx-ECH | 177.3 ± 3.7 | 0.1 ± 0.03 | 203.4 ± 4.8 | 0.2 ± 0.01 | -5.3 ± 3.9 |
| Amine | 173.7 ± 1.6 | 0.1 ± 0.02 | 405.7 ± 29.0 | 0.3 ± 0.03 | -7.5 ± 6.2 |
| TAT | 126.9 ± 3.2 | 0.2 ± 0.02 | 201.5 ± 15.1 | 0.2 ± 0.02 | 14.8 ± 4.7 |
DI: Deionized; DMEM: Dulbecco's modified Eagle medium; FBS: Fetal bovine serum; PDI: Polydispersity Index.