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. 2011 May 25;8(65):1804–1814. doi: 10.1098/rsif.2011.0201

Figure 8.

Figure 8.

SEM micrographs and EDS analysis for the microspheres before and after soaking in SBFs for 3 days. Alginate microspheres (a) before and (b) after soaking, in situ 30CS–A microspheres (c) before and (d) after soaking, non-in situ 30CS–A microspheres (e) before and (f) after soaking. (b) No apatite particles formed on pure A microspheres after soaking in SBF. (d) Apatite layer composed of lath-like particles formed on the surface of in situ 30CS–A microspheres. (f) There are a few apatite particles on the surface of non-in situ 30CS–A microspheres. (f) EDS analysis shows that P peaks were very obvious for in situ 30CS–A microspheres in SBF and the ratio of Ca–P of apatite is 1.82. There is a weak P peak for non-in situ 30CS–A microspheres in SBF and the ratio of Ca–P of apatite is 23.9.