Table 1. Analysis of the Four Nanogel Samples by Dynamic Light Scattering and Electrophoretic Light Scattering in Both Water and PBS at 24 and 40 °C.
| water at 24 °C |
water at 40 °C |
PBS at 24 °C | PBS at 40 °C | |||
|---|---|---|---|---|---|---|
| sample | diameter (nm) | ζ-potential (mV)a | diameter (nm) | ζ-potential (mV)a | diameter (nm) | diameter (nm) |
| PNA65 | 64 | –13 | 38 | –20 | 66 | b |
| PNA160 | 165 | –12 | 89 | –30 | 161 | b |
| PNA310 | 314 | –18 | 182 | –33 | 325 | b |
| PNA450 | 452 | –13 | 267 | –37 | 342 | b |
a
The ζ-potential measurements were obtained in 0.001 M NaCl.
b
All samples aggregated at 33 °C, providing mean sizes that could not be accurately measured by DLS.