Effect of Methyl Cellulose on Apatite Formation of a Sol-Gel Derived Bioactive Glass/Titania Nanostructure Composite

Mojtaba Nasr-Esfahani; Marzieh Omid-Bakhtiari; Muhamad Kashif

doi:10.4028/www.scientific.net/AMR.925.82

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 925Effect of Methyl Cellulose on Apatite Formation of...

Effect of Methyl Cellulose on Apatite Formation of a Sol-Gel Derived Bioactive Glass/Titania Nanostructure Composite

Abstract:

In order to widen the application range of bioactive glass (BG), we prepared a bioactive glass as a composite matrix, strengthened by titania nanoparticles. The prepared composites had different amounts of both bioactive glass (49S) and titania in the weight percents of 1:3, 1:1 and 3:1, respectively. Bioactive glass sols (49S) in the system (SiO₂CaOP₂O₅) were prepared following the solgel technique, then a solution of 2 wt% methylcellulose was added and stirred at room temperature. Precalcinated TiO₂ nanopowder was dispersed in the sol and the prepared mixture was fired at 600 °C. The inhomogeneity problem in preparation of composite powder was overcome by using methylcellulose (MC) as a dispersant. The nanostructure composites were characterized using X-ray diffraction (XRD) and Fourier transforms infrared spectroscopy (FT-IR). The microstructure of the surfaces of the different composites was examined by scanning electron microanalysis (SEM) to verify the apatite formation. The results led us to the conclusion that the addition of MC reinforces the composites and increases the formation of an apatite layer in the presence of BG and titania content.

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Periodical:

Advanced Materials Research (Volume 925)

Pages:

82-83

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.925.82

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Online since:

April 2014

Authors:

Mojtaba Nasr-Esfahani*, Marzieh Omid-Bakhtiari, Muhamad Kashif

Keywords:

Bioactive Glass, Biocomposite, Methyl Cellulose, Nanopowder, Titania

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