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OD readings of MC3T3 cells cultured on the piezoelectric scaffolds (PCL-65BT) with different infill (pore sizes); 1 MHz US was used per the routine for all the proliferation tests. * means statistically significant (p < 0.05) with respect to the controls (Blank and 100 Infill specimens) in the same group. # means statistically significant (p < 0.05) with respect to the PCL specimens with different infills.
