Erbium-doped barium titanate/hydroxyapatite composites with enhanced piezoelectric and biological properties

Micro & nano letters

article

Cong Wu¹  Yufei Tang¹  Kang Zhao¹  Mengzhen Jiao¹  Zixiang Wu² 

[1] Department of Materials Science and Engineering, Xi'an University of Technology;Institute of Orthopaedics, Xi'jing Hospital, The Fourth Military Medical University

关键词: barium compounds;    compressive strength;    composite materials;    erbium;    porosity;    calcium compounds;    bone;    piezoelectricity;    bioceramics;    piezoceramics;    piezoelectric properties;    biological properties;    bone repair;    osteoconductivity;    osteoinductivity;    natural bone;    piezoelectric stimulation;    Erbium-doped barium titanate-hydroxyapatite composites;    nondegradable BaTiO3;    Er3+-doped barium titanate content;    BaTiO3-Ca10(PO4)6(OH)2;   

DOI  :  10.1049/mnl.2019.0809

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Shortening the period of bone repair based on BaTiO 3 /hydroxyapatite(HA) composites with osteoconductivity and osteoinductivity is important. However, when the piezoelectric properties of composites are matched with natural bone, the content of non-degradable BaTiO 3 needs to reach 90%, which may not conducive to clinical application. The barium titanate content in the composite was reduced by doping Er 3+ into the BaTiO 3 of BaTiO 3 /HA composites with enhanced piezoelectric properties. The piezoelectric constant and compressive strength of composites increased with the increase of Er 3+ -doped barium titanate (BTEr) content. Appropriate piezoelectric stimulation can promote the growth of osteoblasts. 70% BTEr/30% HA is more beneficial to the proliferation of osteoblasts than 70% BaTiO 3 /30% HA.

【 授权许可】

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