Fig. 15.

(A) SEM images of the surface and cross-section of PU foams with Ag NPs and human epidermal growth factors loaded. Reproduced from [267] with permission from The Royal Society of Chemistry. (B) Schematic illustration of the synthesis of PU foams with cationic imidazolium diol. (C) Photographs of three cationic PU foams and the control one. (D) Computer simulation of the endotoxin adsorption mechanism displaying that the snapshots for the interaction process of the P. aeruginosa outer membrane (LPS molecules and lipid bilayer) with foam 3 at different simulation times (0, 240, and 600 ns). Reproduced from [270] with permission from American Chemical Society.