Fig. 3.
Assessment of the nanoparticle penetration into tracheas. A. Kinetics of DFO nanoparticle penetration into mouse tracheas. B and C. Analysis of the depth of the nanoparticle penetration into pig (C) and human (D) tracheas. The DFO concentrations were measured by HPLC (A–C). Data are shown as means ± σ.