Fig. 4
From: A roadmap to pulmonary delivery strategies for the treatment of infectious lung diseases
(Figures adapted from Refs. [162,163,164,165] and created in BioRender.com)
In vitro cellular infection models. Bacterial suspension was cocultured with mucus or PBS in a standard well under static conditions (A), air-liquid interface deposition of nebulized formulations on biofilm grown on filter inserts (B), biofilm on PEG inserts indirectly infecting epithelial cells (C), and early biofilm grown from planktonic infection of epithelial cells on filter inserts (D)