Síntesis y caracterización de biovidrios de fosfato por el método pirólisis de aerosol en llama

Juan Camilo Velez-Saénz; Natalia Betancur-Granados; Omar Dario Gutiérrez-Flórez

doi:10.33571/rpolitec.v17n33a11

Authors

Juan Camilo Velez-Saénz Grupo Alquimia, Facultad Ciencias Exactas y Aplicadas, Instituto Tecnológico Metropolitano, Medellín, Colom-bia https://orcid.org/0000-0002-8107-281X
Natalia Betancur-Granados Departamento de materiales y minerales. Grupo de investigación de cemento y materiales de construcción (CEMTCO), Universidad Nacional de Colombia https://orcid.org/0000-0003-3281-2946
Omar Dario Gutiérrez-Flórez Grupo Alquimia, Facultad Ciencias Exactas y Aplicadas, Instituto Tecnológico Metropolitano, Medellín, Colom-bia https://orcid.org/0000-0003-2955-6224

DOI:

https://doi.org/10.33571/rpolitec.v17n33a11

Keywords:

biomaterial, bioglass, aerosol pyrolysis in flame, apatite, biomineralization kinetics

Abstract

Using the novel flame aerosol pyrolysis method (FSP), a calcium phosphate bioglass was synthesized for the first time in the P₂O₅-CaO-Na₂O. The samples obtained were characterized by X-ray diffraction(XRD) and diffuse reflectance infrared spectroscopy (DRIFTS), the latter serving to follow in-vitro biomineralization kinetics for 15 days in simulated body fluid (SBF). Using XRD, the amorphous nature of the bioglass was validated by exhibiting the whitlockite phase.The DRIFTS analysis revealed the characteristic bands of the phosphate groups in a range of about 500 to 1400 cm^-1. Respectively, the evolution of the phosphate bands in the samples submerged in SBF indicate the formation of apatite, a process that followed a pseudo-first-order Lagergren kinetics.

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