Table 1 Average size (mean value ± SE), polydispersity index (PDI), surface charge and loading determined for the various EO- PEG NPs dissolved in ethanol/water (3:1, v/v).
Sample | d (nm)±SE | PDI | Zeta potential (mV) | EO loading (w/v) | Loading efficiency (w/w) |
|---|---|---|---|---|---|
Bare PEG-NP | 53 ± 2 | 0.2 | 0.27 (±0.03) | — | — |
Lemon EO-NP | 240 ± 2.51 | 0.34 | −30.60 (±0.58) | 24% | 96% |
Mandarin EO-NP | 212.05 ± 0.04 | 0.26 | −31.13 (±0.38) | 23% | 92% |
Sweet Orange EO-NP | 216.6 ± 0.63 | 0.23 | −27.80(±0.57) | 22% | 88% |
