On mechanical properties and bioactivity of PVDF-BCP composites
| Autor: | L. M. Silva, J. M. Rosso, T. G. M. Bonadio, D. M. Silva, G. S. Dias, W. R. Weinand, T. T. Tominaga, R. Y. Miyahara, L. F. Cótica, I. A. Santos, V. F. Freitas |
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| Jazyk: | English<br />Portuguese |
| Předmět: | |
| Zdroj: | Cerâmica, Vol 64, Iss 371, Pp 359-366 |
| Druh dokumentu: | article |
| ISSN: | 1678-4553 0366-6913 |
| DOI: | 10.1590/0366-69132018643712325 |
| Popis: | Abstract A ceramic/polymer biocomposite with high potential for multifunctional practical applications in bone tissue engineering was synthesized by using a well-known piezoelectric polymer, polyvinylidene fluoride (PVDF), and a high bioactive biphasic calcium phosphate (BCP) ceramic obtained from recycled fish bones. High-bioactivity was observed for the PVDF-BCP composite when it was subjected to conditions that simulate the animal body once a very thick apatite layer (9 μm) was grown on its surface in an immersion experiment (7 days) in simulated body fluid. The structural characteristics of the PVDF-BCP composite showed similarities with highly bioactive young animal bones, overlapped with PVDF polymorphic phases. Mechanical tests revealed properties very similar to those of the human bone tissue with a resistance strength reaching 80 MPa. Together, all these factors indicated a very promising material for application in osseous implants/replacement with postoperative recovery controlled/accelerated by external stimuli. |
| Databáze: | Directory of Open Access Journals |
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