Table 2. Physical Characteristics of Unmodified and Surfactant-Modified PLGA-NPsa.
PVA (%) (w/v) | cationic surfactant (mM) | size, nm (PI) | ζ-potential (mV) | paclitaxel EE (%) | paclitaxel loading (%) (w/w) | coumarin EE (%) | |
---|---|---|---|---|---|---|---|
unmodified NPs | 1 | 0 | 305.6 (0.02) | –19.31 | 81.0 | 5.4 ± 0.1 | 88 |
CTAB-modified NPs (Si-C16-NPs) | 1 | 20 | 293.2 (0.15) | +14.31 | 31.1 | 4.15 ± 0.62 | 75 |
DMAB-modified NPs (Di-C12-NPs) | 1 | 2 | 240.1 (0.05) | +39.91 | 67.5 | 4.5 ± 0.13 | 73 |
PI, polydispersity index; EE, entrapment efficiency.