Nanosized strontium substituted hydroxyapatite prepared from egg shell for enhanced biological properties. (February 2018)

• Record Type: Journal Article
• Authors: Geng, Zhen; Cheng, You; Ma, Lili; Li, Zhaoyang; Cui, Zhenduo; Zhu, Shengli; Liang, Yanqin; Liu, Yunde; Bao, Huijing; Li, Xue; Yang, Xianjin
• Is Part Of: Journal of biomaterials applications. Volume 32:Number 7(2018:Mar.)
• Page Start: 896
• Page End: 905
• Publication Date: 2018-02
• Subjects: Egg shell -- hydroxyapatite -- strontium -- cations -- bioactivity; Biomedical engineering -- Periodicals; Biomedical materials -- Periodicals; 610.28
• DOI: 10.1177/0885328217748124
• Languages: English
• ISSNs: 0885-3282

Abstract

The fabrication and application of bioactive hydroxyapatite has always been a research hot spot in the fields of orthopaedics. Now it is common to use calcium (Ca) salt as Ca 2+ source to synthesise hydroxyapatite. And egg shell could be another promising raw material as Ca 2+ source, which is not only economical but also biogenic. In this study, egg shell (ES)-hydroxyapatite was prepared by using egg shells via hydrothermal method. Furthermore, ES-Sr hydroxyapatite was synthesized by incorporation of bioactive element strontium (Sr 2+ ) into ES-hydroxyapatite. The in vitro experiment showed that compared with hydroxyapatite, ES-hydroxyapatite showed better biological performances, which could be attributed to the trace elements in egg shell, such as magnesium (Mg). And the incorporation of Sr 2+ could further enhance the bioactivity. These results indicated that apatite with high biological activity, which had great application prospects in orthopedics, could be produced by egg shells and the incorporation of Sr 2+ .