GO | In water | In PBS | In culture medium | |||
---|---|---|---|---|---|---|
Time | Size (nm) | Zeta potential (mV) | Size (nm) | Zeta potential (mV) | Size (nm) | Zeta potential (mV) |
12 h | 159.9 ± 0.8 | − 14.4 ± 2.6 | 95.4 ± 0.8 | − 14.2 | 146.8 ± 0.2 | − 7.1 |
24 h | 195.7 ± 0.8 | − 26.8 | 248.0 ± 1.4 | − 12.5 | 333.5 ± 0.8 | − 8.8 |
3 d | 259.2 ± 0.7 | − 16.5 ± 4.0 | 255.6 ± 2.1 | − 17.0 | 321.4 ± 2.1 | − 16.4 ± 0.8 |
5 d | 294.8 ± 0.6 | − 18.7 | 296.4 ± 0.9 | − 14.6 ± 0.9 | 370.3 ± 2.4 | − 9.4 |
7 d | 311.8 ± 2.2 | − 17.7 | 342.9 ± 1.2 | − 17.1 | 1271 ± 3.9 | − 3.4 |