Figure 8 | Scientific Reports

Figure 8

From: The interfacial pH of acidic degradable polymeric biomaterials and its effects on osteoblast behavior

Figure 8

The variation of surface morphologies of P-PUU-2 substrates by incubation with osteoblasts for 7, 14, or 21 days. (a) The P-PUU-2 films without culturing; (b) The P-PUU-2 films with osteoblasts cultured for 7 days; (c) The P-PUU-2 films with osteoblasts cultured for 14 days; (d) The P-PUU-2 films with osteoblasts cultured for 21 days; (e) Cellular secretion after culturing for 21 days; (f) Plentiful micropore formation on films by degrading with cells after culturing 21 days. (Magnification: (a–d) 1000×; (e,f) 10000×).

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