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Surface morphology of bare TCP (i.e., no PCL coating: indicated by 0% PCL) and PCL-coated (1 % PCL in acetone (w/v) solution was used for coating) TCP scaffolds before and after AD release at pH 7.4 and 5.0: (a) bare TCP before AD release, (b) PCL coated TCP before AD release, (c) bare TCP after AD release at pH 7.4, (d) PCL-coated TCP scaffold after AD release at pH 7.4, (e) bare TCP after AD release at pH 5.0, and (f) PCL-coated TCP scaffold after AD release at pH 5.0.
