Fig. 3From: Synthesis of aligned porous polyethylene glycol/silk fibroin/hydroxyapatite scaffolds for osteoinduction in bone tissue engineeringOsteogenic properties of PEG/SF/HAp scaffolds. Immunofluorescence staining of osteocalcin (OCN) (a) and runt-related transcription factor 2 (RUNX2) (b) in BMSCs cultured on the scaffolds for 7, 14, and 21 days, based on a 3D view (scale bar = 100 μm)Back to article page