Fig. 5: In vivo evaluation of bone regeneration (n = 3).
From: Tough and biodegradable polyurethane-silica hybrids with a rapid sol-gel transition for bone repair

A Representative immunofluorescence staining of type I collagen (COL I) and osteocalcin (OCN) at 2 and 4 weeks postsurgery. COL I (red) and OCN (green) coimmunolabeling was used to assess bone regeneration (scale bar: 200 μm). B COL I-positive staining areal density and C OCN-positive staining areal density measured by ImageJ (*p < 0.05 and **p < 0.01).