Potential Bioelectroactive Bone Regeneration Polymer Nanocomposites with High Dielectric Permittivity

The frequency dependence of the dielectric permittivity of (barium titanate–hydroxyapatite)/poly(vinylidene fluoride) three‐phase nanocomposites is investigated at room temperature and different fractions of barium titanate. The permittivity increases with increasing concentration of barium titanate...

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Bibliographic Details
Published in:Advanced engineering materials 2009-10, Vol.11 (10), p.B144-B147
Main Authors: Dang, Zhi-Min, Tian, Chun-Yan, Zha, Jun-Wei, Yao, Sheng-Hong, Xia, Yu-Juan, Li, Jian-Ying, Shi, Chang-Yong, Bai, Jinbo
Format: Article
Language:English
Subjects:
Applied sciences
barium titanate (BT)
bioelectroactive
Biological and medical sciences
Composites
Exact sciences and technology
Forms of application and semi-finished materials
hydroxyapatite (HA)
Medical sciences
nanocomposites
poly(vinylidene fluoride) (PVDF)
Polymer industry, paints, wood
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Technology of polymers
Technology. Biomaterials. Equipments
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Summary:The frequency dependence of the dielectric permittivity of (barium titanate–hydroxyapatite)/poly(vinylidene fluoride) three‐phase nanocomposites is investigated at room temperature and different fractions of barium titanate. The permittivity increases with increasing concentration of barium titanate. A weak decrease in permittivity is also observed for frequencies below 106 Hz. The SEM image inset in a dielectric permittivity vs. frequency curve shows that rod‐like hydroxyapatite and sphere‐like barium titanate nanoparticles exist in the three‐phase nanocomposites.
ISSN:1438-1656
1527-2648
DOI:10.1002/adem.200900085