Si-tricalcium phosphate cement: preparation, characterization and bioactivity in SBF

Si-tricalcium phosphate cement: preparation, characterization and bioactivity in SBF

There are evidences considering the effectiveness of Si on enhancing biological properties of calcium phosphates; however, there are not many works relating to the Si-alpha-TCP bone cement. The influence of silicon doping on the properties of Α-TCP cement was analyzed. Si-TCP was obtained b...

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Bibliographic Details
Main Authors: Mariana Motisuke, Raúl García Carrodeguas, Cecília Amélia de Carvalho Zavaglia
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2011-12-01
Series:Materials Research
Subjects:
calcium phosphate cements
tricalcium phosphate
wollastonite
silicon-doped tricalcium phosphate
biomedical application
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392011000400011
Description
Summary:There are evidences considering the effectiveness of Si on enhancing biological properties of calcium phosphates; however, there are not many works relating to the Si-alpha-TCP bone cement. The influence of silicon doping on the properties of Α-TCP cement was analyzed. Si-TCP was obtained by a solid state reaction employing CaCO3, CaHPO4 and CaSiO3 and powder was analyzed by XRD, FTIR, XRF and BET specific area. Cement samples were analyzed for their surface of fracture morphology, mechanical resistance and SBF bioactivity. Cement mechanical resistance was not satisfactory for biomedical application; nonetheless, sample's surface was coated by an apatite layer after immersion in SBF. Notwithstanding, to ensure that silicon is the element responsible for increasing the material's bioactivity it is necessary to evaluate the in vivo performance of the bone cement obtained in this work.
ISSN:1516-1439

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