Table 1.
Polyacrylamide nanoparticle characteristics
| Reaction time of amination [h] | Amine density ρ [nm−3] (mean ± SD) | Net charges/ particle∗ (×103) | Number of effective charges, Q∗ (mean ± SD) | Diameter of particles subjected to the analysis of motion† [nm] (mean ± SD) |
|---|---|---|---|---|
| 1.3 | 0.30 ± 0.05 | 33 | 13 ± 2 | 61 ± 6 |
| 2.0 | 0.36 ± 0.06 | 40 | 15 ± 3 | 62 ± 5 |
| 3.0 | 0.55 ± 0.10 | 60 | 24 ± 4 | 57 ± 4 |
| 4.0 | 0.59 ± 0.11 | 65 | 26 ± 5 | 58 ± 5 |
| 5.0 | 0.73 ± 0.13 | 80 | 32 ± 7 | 59 ± 5 |
| 7.0 | 0.96 ± 0.17 | 106 | 42 ± 11 | 60 ± 5 |
∗
These numbers are for the particles subjected to motion analysis.
†
For details of diameter measurements under DFM, see Methods and Fig. S2.