Paper Title:
Apatite Forming Ability of a Non-Woven Silica Fabric Containing Calcium
  Abstract

Non-woven silica fabric was made by electro-spinning method for the potential application as a bone grafting material. The silica gel, the source material for electro-spinning, was prepared by the hydrolysis of tetraethyl orthosilicate in the presence of calcium salt, water, hydrochloric acid and ethanol. It was transferred to a syringe, which was connected to the high voltage supply generating a high electric field between the spinneret and the ground collecting drum. The silica fibers containing calcium were spun under the electric field of 2 KV/cm. Their diameters were in the range from about 0.3 μm to 8 μm. It was heat-treated at 300 oC for 3 hours. After soaking in the SBF for 1 week, low crystalline apatite crystals were observed to occur on their surfaces. From the results, it can be concluded that the non-woven silica fabric containing calcium made by electro-spinning method and then heat-treated has a bioactivity. It means it has a potential to be used as a bone grafting material because of its apatite-forming ability, high surface area to volume ratio and high porosity.

  Info
Periodical
Key Engineering Materials (Volumes 330-332)
Main Theme
Edited by
Xingdong Zhang, Xudong Li, Hongsong Fan, Xuanyong Liu
Pages
699-702
DOI
10.4028/www.scientific.net/KEM.330-332.699
Citation
S. H. Rhee, I. Y. Chung, Y. K. Lee, B. S. Lim, Y. J. Seol, "Apatite Forming Ability of a Non-Woven Silica Fabric Containing Calcium", Key Engineering Materials, Vols. 330-332, pp. 699-702, 2007
Online since
February 2007
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Price
$32.00
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