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. Author manuscript; available in PMC: 2013 Aug 6.
Published in final edited form as: Acta Biomater. 2011 Dec 2;8(3):1117–1124. doi: 10.1016/j.actbio.2011.11.028

Fig. 1.

Fig. 1

SEM micrographs of β-TCP discs after 14 days incubation in mSBF with a bicarbonate concentration of (a) 4.2, (b) 25, and (c) 100 mM HCO3− show the formation of a continuous coating. The morphology of the mineral is affected by the extent of carbonate substitution. The plate-like nanostructure at lower HCO3− in mSBF, (d) 4.2 mM, becomes smaller as the concentration of HCO3− in mSBF increases to (e) 25 and (f) 100 mM. (g) The surface before incubation in mSBF.