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J. Korean Ceram. Soc. > Volume 59(3); 2022 > Article
Journal of the Korean Ceramic Society 2022;59(3): 271-288.
doi: https://doi.org/10.1007/s43207-022-00198-w
Progress and perspectives of metal‑ion‑substituted hydroxyapatite for bone tissue engineering: comparison with hydroxyapatite
Si Hyun Kim3, Cheol Hyun Park1, Jun Hyuk Heo1,2, Jung Heon Lee1,2,3,4
1School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
2Advanced Materials Technology Research Center, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
3SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
4Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
Correspondence  Jun Hyuk Heo ,Email: saegusa@skku.edu
Jung Heon Lee ,Email: jhlee7@skku.edu
Received: December 21, 2021; Revised: February 8, 2022   Accepted: March 21, 2022.  Published online: May 31, 2022.
*Si Hyun Kim and Cheol Hyun Park contributed equally to this work.
Hydroxyapatite (HA) is one of the most common bioceramics and is abundant in human bones. HA is composed of calcium phosphate, which is prevalent in biomedical processes, particularly bone formation, osteogenesis, and angiogenesis. As HA is one of the core materials that makes up the human body, there has been considerable research on methods of synthesizing HA while changing its properties by substituting various types of metal ions. In particular, previous studies have intensively investigated the size, crystallinities, and morphologies generated using various synthesis methods to change the characteristics of HA by substituting different metal ions. This review summarizes the findings of these studies on HA, including findings on the characteristics of HA in natural bone, methods of synthesizing HA, and findings on metal-ion-substituted HA. Furthermore, the characteristics and applications of HA that were investigated in previous studies are summarized, and the latest trends and perspectives on the future of the field are also presented.
Key words: Hydroxyapatite (HA) · Metal ions · Substitution · Bone tissue engineering · Osteogenesis
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