Fig. 1From: Poly-lactic acid nanoparticles (PLA-NP) promote physiological modifications in lung epithelial cells and are internalized by clathrin-coated pits and lipid raftsPLA-NP characteristics. a Representative images obtained by TEM of 2 μg/mL PLA-NP. Scale bar 200 nm. b Z-average hydrodynamic diameter values of PLA-NP at 20, 100 and 200 µg/mL diluted in complete medium, i.e. same conditions as in cell culture, and analyzed by DLS after 1, 6, 24, 48 and 72 h of incubation. Results are expressed as mean (±SD)Back to article page