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Mineralization of MAHS. (a–c) SEM images of mineralized crystalline apatite on the surface of MAHS-1 with different magnifications after immersion in medium for 3 days. (d) EDS spectrum of mineralized MAHS-1. (e) Ion concentrations of calcium and phosphorus in each mineralized MAHS. Data are mean ± s.d., n = 4 per group.
