Fig. 1

(a) TEM micrographs of Nanozein decorated with SD and (b) NanoPTX. Bar = 150 nm. (c) Surface hydrophobicity of Nanozein, SD-Nanozein and NanoPTX. **p < 0.01 with respect to the surfactant-free zein nanoparticles used as control. (d) Release profiles of PTX from zein nanoparticles in physiological (pH 7) and acidic (pH 5) environments as a function of incubation time. The analysis was performed at 37 °C. Values are the mean of three experiments ± standard deviation.