Table 2.
Surface potentials of 2-ME and G5 dendrimers with different surface functional groups in aqueous solution at different pH conditions
| Materials | Zeta potential/mV |
||
|---|---|---|---|
| pH 5.0 | pH 7.0 | pH 10.0 | |
| 2-MEa | −0.00997 ± 0.359 | −1.31 ±0.734 | −4.45 ± 1.01 |
| G5.NH2 | 39.2 ± 1.09 | 36.2 ± 1.41 | 0.358 ± 0.38 |
| G5.NHAc | 19.1 ± 1.45 | 9.18 ± 1.23 | −12.6 ± 3.08 |
| G5.NGlyOH | 29.1 ±7.12 | 22 ± 3.02 | 0.194 ±0.523 |
| G5.SAH | −0.55 ± 0.282 | −34.7 ± 1.27 | −40 ± 0.894 |
a
2-ME is nearly water insoluble. The saturated water solution of 2-ME was prepared for measurement.