Figure 2. (A) Diffusivity of fetal bovine serum from the DMPG-SF hydrogels, determined from the protein released into the supernatants using Bradford protein assay. (B) Release profile of dexamethasone from 5, 10 and 15 mM DMPG/dexamethasone-SF hydrogels (containing 0.625, 1.25 and 1.875 mM dexamethasone, respectively) in 0.01 M phosphate-buffered saline (pH 7.4). Data are expressed as mean ± SD, and were analysed by one-way analysis of variance followed by Bonferroni post-hoc tests. The experiment was repeated three times. DMPG: dimyristoyl glycerophosphoglycerol; SF: silk fibroin.