Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/10008
Título: Extraction and characterisation of apatite- and tricalcium phosphate-based materials from cod fish bones
Autor: Piccirillo, C.
Silva, M. F.
Pullar, R. C.
Cruz, I. Braga da
Jorge, R.
Pintado, M. E.
Castro, Paula M. L.
Palavras-chave: Hydroxyapatite
β-Tricalcium phosphate
Fluorapatite
Biomedical implants
Data: 2013
Editora: Elsevier
Citação: PICCIRILLO, C... [et al.] - Extraction and characterisation of apatite- and tricalcium phosphate-based materials from cod fish bones. Materials Science and Engineering: C. ISSN 0928-4931. Vol. 33, n.º 1 (2013), p. 103-110
Resumo: Apatite- and tricalcium phosphate-based materials were produced from codfish bones, thus converting a waste by-product from the food industry into high added-valued compounds. The bones were annealed at temperatures between 900 and 1200 °C, giving a biphasicmaterial of hydroxyapatite and tricalcium phosphate (Ca10(PO4)6(OH)2 and β-Ca(PO4)3)with a molar proportion of 75:25, amaterial widely used in biomedical implants. The treatment of the bones in solution prior to their annealing changed the composition of thematerial. Single phase hydroxyapatite, chlorapatite (Ca10(PO4)6Cl2) and fluorapatite (Ca10(PO4)6F2) were obtained using CaCl2 and NaF solutions, respectively. The sampleswere analysed by several techniques (X-ray diffraction, infrared spectroscopy, scanning electron microscopy and differential thermal/thermogravimetric analysis) and by elemental analyses, to have a more complete understanding of the conversion process. Such compositionalmodifications have never been performed before for these materials of natural origin to tailor the relative concentrations of elements. This paper shows the great potential for the conversion of this by-product into highly valuable compounds for biomedical applications, using a simple and effective valorisation process.
Peer review: yes
URI: http://hdl.handle.net/10400.14/10008
Versão do Editor: http://dx.doi.org/10.1016/j.msec.2012.08.014
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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