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

AUTOR(ES)

Motisuke, Mariana, Carrodeguas, Raúl García, Zavaglia, Cecília Amélia de Carvalho

FONTE

Materials Research

DATA DE PUBLICAÇÃO

30/09/2011

RESUMO

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.

Documentos Relacionados

• Preparation and properties of α-tricalcium phosphate microspheres by spray drying
• Effects of silica addition on the chemical, mechanical and biological properties of a new α-Tricalcium Phosphate/Tricalcium Silicate Cement
• In situ Synchrotron X-ray Powder Diffraction Study of the Early Hydration of α-tricalcium Phosphate/tricalcium Silicate Composite Bone Cement
• Vanadium-modified molecular sieves: preparation, characterization and catalysis
• Preparation, characterization, and in vivo evaluation of salmon calcitonin microspheres