Table 1.
The shown measurements were performed 20 minutes after preparation of the samples at concentrations of 600 μg/ml (corresponding particle concentration: 4.4·1013 particles per ml dispersion) and a temperature of 20°C.
| Diluent | aSNP (10% + 90% diluent) | |
|---|---|---|
| NexSil20 | Ludox TM-40 | |
| (DTEM)/nm | 31.4 ± 3.8 | 31.2 ± 4.0 |
| Milli-Q water: | ||
| ζ/mV | -51.0 | -57.3 |
| (Dh)z/nm | 32.8 | 35.1 | 32.0 | 37.9 |
| μ2 | 0.12 | 0.04 | 0.06 | 0.03 |
| PBS: | ||
| ζ/mV | -18.2 | -20.0 |
| (Dh)z/nm | 36.8 | 37.2 | 34.2 | 32.6 |
| μ2 | 0.08 |0.17 | 0.04 | 0.01 |
| Medium RPMI1640: | ||
| ζ/mV | -19.8 | -26.6 |
| (Dh)z/nm | 35.4 | 33.4 | 32.2 | 32.6 |
| μ2 | 0.07 | 0.03 | 0.02 | 0.01 |
The first values of the size measurements were determined with the fully equipped DLS setup, the second ones with the Zetasizer; the corresponding μ2 values diverge because of the different measuring angles