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

Figure 7

Confocal 2D images of the live and dead MSCs cultured in PU-IOS scaffolds for 7 days. (a) (A1–A3) Neat PU scaffolds; (b) (B1–B3) VEGF-modified PU-IOS scaffolds. Green color: live cells; red color: dead cells; (A3, B3) merged images. The quantitative cell viability cultured in the two types of scaffolds on days 1, 3, and 5 assessed by CCK-8 kit is presented in (c).

(a)

(b)

(c)