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Calcium phosphate bioceramics and bioceramic composites

Pattanayak, Deepak K. ; Rao, B. T. ; Mohan, T. R. Rama

Journal of sol-gel science and technology, 2011-09, Vol.59 (3), p.432-447 [Periódico revisado por pares]

Boston: Springer US

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Título:
Calcium phosphate bioceramics and bioceramic composites
Autor: Pattanayak, Deepak K. ; Rao, B. T. ; Mohan, T. R. Rama
Assuntos: Apatite ; Bioceramics ; Biochemistry ; Biocompatibility ; Bioglass ; Biological activity ; Biomedical materials ; Body fluids ; Calcium ; Calcium phosphates ; Ceramics ; Chemistry ; Chemistry and Materials Science ; Colloidal gels. Colloidal sols ; Colloidal state and disperse state ; Composite materials ; Composites ; Exact sciences and technology ; Functional groups ; General and physical chemistry ; Glass ; Hot pressing ; Hydroxyapatite ; In vitro methods and tests ; Inorganic Chemistry ; Materials Science ; Metallurgical analysis ; Morphology ; Nanotechnology ; Natural Materials ; Optical and Electronic Materials ; Original Paper ; Polymethyl methacrylate ; Powder metallurgy ; Protective coatings ; Roasting ; Sintering (powder metallurgy) ; Surgical implants ; Titanium ; Wollastonite ; X-ray diffraction
É parte de: Journal of sol-gel science and technology, 2011-09, Vol.59 (3), p.432-447
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: This paper reviews selected aspects of research work carried out in bioceramics and bioceramic composites at the Ceramics Laboratory IIT, Bombay, India. The focus here is in understanding and developing calcium hydroxyapatite (HA) bioceramics and biocomposites, including calcium hydroxyapatite-titanium (HA-Ti) and calcium hydroxyapatite-polymethylmethacrylate (HA-PMMA). Research involving apatite-wollastonite (AW) bioglass ceramics and bioceramic composites of AW with titanium as well as with polymethylmethacrylate will be presented in a future article. HA powders were precipitated from solutions with varying Ca/P ratios and calcined at a range of temperatures to investigate their structural evolution. HA-Ti composites were prepared by powder metallurgical processes using HA powders calcined at 400 °C, followed by compaction at 600 MPa and subsequent sintering at 1,000–1,200 °C. HA-PMMA composites containing up to 40 wt% PMMA were prepared by hot pressing at 150 °C and 150 MPa pressure. The phases present in the various materials were identified by X-ray diffraction (XRD) and functional groups by FTIR, while the sample morphologies were investigated by SEM. The bioactivity of the composites was evaluated by soaking them in simulated body fluid (SBF) for 7 days, to evaluate their apatite-forming ability (a key indicator of bioactivity). The results obtained are interpreted to aid in the development of “design rules” for the use of such biocomposite materials in specific biomedical application.
Editor: Boston: Springer US
Idioma: Inglês

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Calcium phosphate bioceramics and bioceramic composites

Pattanayak, Deepak K. ; Rao, B. T. ; Mohan, T. R. Rama

Boston: Springer US

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