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CLSM micrographs of MC3T3 cells grown on dual-scale scaffold after 7 days of culture. (a) top view showing difference in morphology between cells adhered on PLGA fibers onto filaments (white arrow) and those adhered on PLGA fibers aligned in the gap (red arrow); (b) cross section of dual-scale constructs showing cells grown in inner parts of scaffold. Scale bar of 150 μm in (a) is applicable to (b).
