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Nanoparticle characterisation. Size determined by TEM and DLS, and surface charge measured by Zeta potential.
| Sample | Size by TEM (nm) | Size by DLS (nm) | PDI | Zeta potential (mV) | |
|---|---|---|---|---|---|
| Bare |  |
54.0 (±6.9) | 79.7 (±0.7) | 0.025 (±0.02) | −37.3 (±2.4) |
| Amine |  |
57.3 (±4.3) | 105.5 (±4.4) | 0.169 (±0.04) | +29.3 (±0.4) |
| Epoxy |  |
58.7 (±5.9) | 83.6 (±3.7) | 0.071 (±0.03) | −27.7 (±0.6) |
| Hydroxy |  |
57.8 (±7.4) | 85.1 (±3.7) | 0.073 (±0.03) | −38.9 (±3.3) |
