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Scanning electron micrographs of cultured osteoblasts on PP/2% CNF–20% HANR hybrid composite for 2 days (A) and 4 days (B). (C) High magnified SE image showing long filopodias.
Abbreviations: PP, polypropylene; CNF, carbon nanofiber; HANR, hydroxyapatite nanorod; KV, kilo volt; WD, working distance.
