Development of biocompatible piezoelectric materials as an "active biomaterial"

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14165
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Structural/Functional materials
• Research Institution: Osaka University
• Principal Investigator: HAGIHARA KOJI 大阪大学, 工学研究科, 准教授 (10346182)
• Co-Investigator(Renkei-kenkyūsha): NAKANO TAKAYOSHI 大阪大学, 大学院工学研究科, 准教授 (30243182)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 圧電材料 / バイオセラミックス / 生体材料 / 複合材料

Outline of Final Research Achievements

In this study, we focused the Perovskite phase (KNN) in a K-Na-Nb-O system which shows the piezoelectric property, and the fabrication of the composite with some bioceramics such as HAp was attempted, for the development of a novel biocompatible piezoelectric materials. By the control of the appropriate process condition, we succeeded in fabricating some KNN/bioceramics composites, as expected. Moreover, by the addition of the PLLA, which is one of the thermally decomposable resins, the fabrication of the "porous" KNN/bioceramics composites was also accomplished. By the immersion test of them in the Hanks solution, which is one of the biological simulated solutions, the acceleration of the formation of calcium phosphate compounds on some of the specimen surfaces was confirmed. By these results, the possibility of this material as a novel biomaterial was suggested.

Free Research Field

結晶塑性学，機能性構造材料学