Figure 2.

XRD diffraction patterns of BG, 0.5Co-BG, 1Co-BG and 3Co-BG scaffolds before and after soaking in SBF for 90 days. For comparison, the patterns of the as-fabricated BG scaffold and a reference hydroxyapatite (JCPDS 72-1243) are also shown(A,B). The mechanical behavior of BG, 0.5Co-BG, 1Co-BG and 3Co-BG scaffolds (C). Weight loss of the four groups of bioactive glass scaffolds shown and (D) the cumulative amount of Co²⁺ ions release from the glass into SBF as a function of immersion time of the scaffolds in SBF(E).