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NP characterization; hydrodynamic diameter (dh), polydispersity index (PDI), zeta potential (ZP), and TEM diameter (Fig. S1).53
| NPs | dh (nm) | PDI | ZP (mV) | TEM (nm), n = 50 |
|---|---|---|---|---|
| 200 nm Amine | 273 ± 23 | 0.13 ± 0.02 | +35 ± 2 | 223 ± 8 |
| 200 nm Carboxylate | 227 ± 3 | 0.03 ± 0.01 | −46 ± 1 | 189 ± 12 |
| 1 μm Amine | 1132 ± 23 | 0.12 ± 0.06 | +9 ± 3 | 1055 ± 39 |
