Pre-osteoblast cell growth on the crosslinked PFCL-Click scaffold. a) MC3T3 cell proliferation on the crosslinked PFCL-Click scaffolds determined by MTS assay at 1, 3, and 5 days post-seeding. b) Cell numbers and c) cell areas calculated from d) immune-fluorescence images of the cells growing on the crosslinked PFCL-Click scaffolds (red: F-actin stained with rhodamine-phalloidin; blue: cell nuclei stained with DAPI). e) Cell circularity, f) nuclei area, and g) nuclei circularity of MC3T3 cells cultured on the crosslinked PFCL-Click scaffolds at 1, 3, and 5 days post-seeding. *: Statistically different (p < 0.05).