Fabrication and Characterization of Alveolus-Like Scaffolds with Control of the Pore Architecture and Gas Permeability

Figure 1

The schematic of 3D porous scaffold fabrication by inverse opal method. (a) Gelatin particle generation by the microfluidic device; (b) gelatin template formation in methanol atmosphere at a 80°C oven for 30 minutes; (c) PU solution penetration through gelatin template and filling the gaps between each gelatin particle; (d) PU scaffold collection after freeze drying for 6 hours and removal of gelatin particles by immersing in a water bath at 45°C for 24 hours.