Biomimetic ceramic composite: Characterization, cell response, and in vivo biocompatibility

Hung Yang Lin, Yi Jung Lu, Hsin Hua Chou, Keng Liang Ou, Bai Hung Huang, Wen Chien Lan, Takashi Saito, Yung Chieh Cho, Yu Hsin Ou, Tzu Sen Yang, Pei Wen Peng

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The present study aimed to synthesize biphasic calcium phosphate ceramics (CaPs) composed of β-tricalcium phosphate (β-TCP) and hydroxyapatite (HAp) from the propagated Scleractinian coral and dicalcium phosphate anhydrous using a solid-state reaction followed by heat treatment at a temperature of 1100 C for 1 h to 7 days. The as-prepared coral and coral-derived bipha-sic CaPs samples were characterized through scanning electron microscopy, X-ray diffractometry, Fourier transform infrared spectroscopy, and Raman spectroscopy. The cell response of the biphasic CaPs was evaluated by in vitro cytotoxicity assessment using mouse fibroblast (L929) cells. The bilateral femoral defect rabbit model was used to assess the early local reaction of the coral-derived biphasic CaPs bone graft on tissue. The results confirmed that the co-existence of β-TCP and HAp was formed at 1100 C for 1 h. The ratio of HA/β-TCP increased as the heat-treatment time increased. The coral-derived biphasic CaPs comprising 61% HAp and 39% β-TCP (defined as HT-3) were not cytotoxic. Furthermore, no significant differences in local tissue reaction were observed between the HT-3 sample and autogenous bone. Therefore, the synthesized coral-derived biphasic CaPs is a candidate for bone grafting due to its good biocompatibility.

Original languageEnglish
Article number7374
Issue number23
Publication statusPublished - Dec 1 2021


  • Bioactive materials
  • Bioceramics
  • Biocompatibility
  • Calcium phosphate
  • Composites

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


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