Evaluation of Bioactive Properties of <i>α</i> and <i>β</i> Wollastonite Bioceramics Soaked in a Simulated Body Fluid

Luis A. Núñez-Rodríguez, Martín A. Encinas-Romero, Agustín Gómez-Álvarez, Jesús L. Valenzuela-García, Guillermo C. Tiburcio-Munive

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

Resumen

Dense natural wollastonite bioceramics (CaSiO3) were prepared by a sintering method, varying the pressing load and sintering temperature, in order to obtain different phases of wollastonite, and different physical properties in the materials. The products were characterized by TGA-DTA, XRD, FT-IR, SEM-EDS, TEM and XPS techniques. The results indicate the presence of two polymorphic phases of wollastonite, the β-wollastonite and α-wollastonite with a transition temperature of the β phase to α phase at approximately 1250˚C. These materials were soaked in a simulated body fluid (SBF) during 1, 2 and 3 weeks, to study their solubility and bioactivity. The effect of different wollastonite phases on the solubility of Ca and Si, as well as the capacity of producing layers of “newly formed apatite” on the surfaces of these materials in SBF solution were analyzed.
Idioma originalEspañol (México)
Páginas (desde-hasta)263-276
Número de páginas14
Publicación Journal of Biomaterials and Nanobiotechnology
Volumen09
N.º03
DOI
EstadoPublicada - 2018

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