Fig. 10From: Novel inhalation therapy in pulmonary fibrosis: principles, applications and prospects(Reproduced with permission under the terms of the CC-BY license [99])NPs with surfaces modified by polyethylene glycol (PEG) avoid being taken up by AMs. A Uptake of microparticles by rat alveolar macrophages 1 h after incubation with PLGA. B Uptake of microparticles by rat alveolar macrophages 1 h after incubation with PEG-PLGABack to article page