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100 × magnification SEM micrographs of: (a) PLLA as prepared, (b) PLLA-30% FeHA after 8 weeks degradation, (c) PLLA-10% FeHA as prepared, (d) PLLA-10% FeHA after 25 weeks degradation, (e) PLLA-30% FeHA as prepared, (f) PLLA-30% FeHA after 25 weeks degradation, (g) PLLA-70% FeHA as prepared, (h) PLLA-70% FeHA after 25 weeks degradation.
