Fig. 10. Mean square displacement (MSD) of carboxylic nanoparticles across physiological mucus (red squares) or multi-component mucus model (blue triangles) and PLGA–DDAB/DNA nanoparticles across multi-component mucus model (green circles). The data were digitally extracted from the different sources. Each model is named after the reference number (numbers in brackets) and the type of sample. Before plotting, the data were homogenized in units of measurement to make them comparable.
