Table 1. Characterisation of PLGA NPs with or without CPT loading, before and after CTX conjugation, for in vitro validation.
Mean ± s.e.m. (n=3); measured in deionised water (dH2O). PDI = polydispersity index
| NP formulation | Size (nm) | PDI | Zeta potential (mV) | CPT loading (μg/mg) | CTX conjugation (μg/mg) |
|---|---|---|---|---|---|
| Blank-NP | 170.7 ± 13.6 | 0.04 ± 0.03 | −13.6 ± 2.25 | NA | NA |
| CPT-NP | 202.6 ± 24 | 0.064 ± 0.03 | −11.89 ± 2.3 | 1.23 ± 0.09 | NA |
| CTX-NP | 192 ± 4.3 | 0.055 ± 0.03 | −11.0 ± 2.66 | NA | 30.2 ± 3.92 |
| CTX-CPT-NP | 210 ± 21.9 | 0.083 ± 0.02 | −9.4 ± 1.98 | 1.19 ± 0.13 | 11.05 ± 4.4 |