XPS analysis of aluminosilicate microspheres bioactivity tested in vitro

  • Todea M
  • Vanea E
  • Bran S
 et al. 
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The study aims to characterize surface properties of aluminosilicate microspheres incorporating yttrium, with potential biomedical applications. Micrometric particles of spherical shape were obtained by spray drying method. The behavior of aluminosilicate microspheres without yttrium and with yttrium was investigated under in vitro conditions, by seven days incubation in simulated body fluid (SBF). The surface elemental composition and the atomic environments on outermost layer of the microspheres, prior to and after incubation in SBF were evaluated by X-ray photoelectron spectroscopy (XPS) in order to investigate their bioactivity. The results were analyzed to underline the effect of yttrium addition on surface properties of the aluminosilicate microspheres and implicitly on the behavior of the samples in simulated body environments. © 2013 Elsevier B.V.

Author-supplied keywords

  • Aluminosilicates
  • Microspheres
  • Spray drying
  • XPS
  • Yttrium

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