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Characterization of PCL scaffold and PLGA–PEG–PLGA thermogel. Gross observation (A) and SEM image (B) of PCL scaffold fabricated by FDM. Sol-gel phase diagrams of PLGA–PEG–PLGA copolymer in PBS with different concentrations (C). Rheological study of PLGA–PEG–PLGA copolymer solution at a concentration of 20 wt % (D).
