无机材料学报 ›› 2022, Vol. 37 ›› Issue (6): 617-622.DOI: 10.15541/jim20210549

所属专题: 【生物材料】骨骼与齿类组织修复

• 研究论文 • 上一篇    下一篇

钛酸钡/硅酸钙复合生物活性压电陶瓷的制备及性能研究

魏子钦1,2(), 夏翔2, 李勤2, 李国荣2, 常江1,2()   

  1. 1.上海师范大学 化学与材料科学学院, 上海 200234
    2.中国科学院 上海硅酸盐研究所, 高性能陶瓷与超微结构国家重点实验室, 上海 200050
  • 收稿日期:2021-08-28 修回日期:2021-10-12 出版日期:2022-06-20 网络出版日期:2021-11-12
  • 通讯作者: 常 江, 研究员. E-mail: jchang@mail.sic.ac.cn
  • 作者简介:魏子钦(1996-), 男, 硕士研究生. E-mail: 1149057072@qq.com
  • 基金资助:
    国家重点研发计划(2016YFC1100201)

Preparation and Properties of Barium Titanate/Calcium Silicate Composite Bioactive Piezoelectric Ceramics

WEI Ziqin1,2(), XIA Xiang2, LI Qin2, LI Guorong2, CHANG Jiang1,2()   

  1. 1. College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
    2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:2021-08-28 Revised:2021-10-12 Published:2022-06-20 Online:2021-11-12
  • Contact: CHANG Jiang, professor. E-mail: jchang@mail.sic.ac.cn
  • About author:WEI Ziqin (1996–), male, Master candidate. E-mail: 1149057072@qq.com
  • Supported by:
    National Key Research and Development Plan of China(2016YFC1100201)

摘要:

压电材料产生的电信号能够促进成骨细胞增殖分化, 但不具有良好的诱导矿化能力; 生物活性材料在生理环境下能够诱导类骨羟基磷灰石的沉积, 但又不能产生电信号促进成骨。因此, 开发出一种既能产生电信号, 又能诱导矿化沉积的复合生物活性压电材料, 具有重要意义。本研究以钛酸钡为压电组分, 以硅酸钙为生物活性组分, 采用固相烧结法制备了钛酸钡/硅酸钙复合生物活性压电陶瓷, 测试了压电性能, 并用体外矿化实验评价了诱导矿化能力。硅酸钙复合含量达到30%时, 复合陶瓷仍具有一定的压电性能(d33=4 pC·N-1), 并且能够在模拟体液中诱导磷酸钙沉积。钛酸钡与硅酸钙的复合能够同时具有压电性和生物活性, 为骨修复材料提供了新的选择。

关键词: 钛酸钡, 硅酸钙, 压电性, 生物活性

Abstract:

Electrical signals generated by piezoelectric materials can promote proliferation and differentiation of osteoblasts, but they can’t induce mineralization, while bioactive materials can induce the deposition of bone like hydroxyapatite in physiological environment, but can not generate electrical signal to promote osteogenesis. Therefore, it is of great significance to develop a composite bioactive piezoelectric material that can not only generate electrical signals, but also induce mineralization and deposition. Here, we used barium titanate as piezoelectric component and calcium silicate as bioactive component to prepare barium titanate/calcium silicate composite as bioactive/piezoelectric ceramics by solid-state sintering method. Piezoelectric properties of the ceramics were tested, and the ability of inducing mineralization was evaluated by in vitro mineralization experiment. The experimental results show that when the content of calcium silicate reaches 30%, the composite ceramics still have certain piezoelectric property (d33=4 pC·N-1), and can induce the deposition of calcium phosphate in simulated body fluid. Therefore, the combination of barium titanate and calcium silicate can synchronously afford piezoelectric and biological activities, which provides a new choice for bone repair materials.

Key words: barium titanate, calcium silicate, piezoelectricity, bioactivity

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