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SEM micrographs of 3-D porous scaffolds prepared by phase separation using: (A) 3 wt%, (B) 5 wt%, and (C) 9 wt% of PPF-co-PLLA in a dioxane/water (85/15 wt/wt) solution followed by quenching at 20 °C for 1 min, freezing at −80 °C for 2 hours and lyophilization for 3 days.
