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Bioactive Non-Woven Silica Fabric Made Through Electro-Spinning Method

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Abstract:

Non-woven silica fabric was made by electro-spinning method for the 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 water, hydrochloric acid and ethanol. It was transferred to a syringe (spinneret), which was connected to the high voltage supply generating a high electric field between the spinneret and the ground collecting drum. The silica fibers were spun under the electric field of 2 KV/cm. Their diameters were in the range from about 100 nm to 5 µm. After soaking in the SBF for 4 week, low crystalline apatite crystals were observed to occur partly on their surfaces. From the results, it can be concluded that the non-woven silica fabric made by electro-spinning method has the apatite forming ability in the SBF and 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.

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Periodical:

Key Engineering Materials (Volumes 309-311)

Pages:

465-468

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.309-311.465

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Online since:

May 2006

Authors:

Hanna Yoon, Yong Keun Lee, Bum Soon Lim, Sang Hoon Rhee

Keywords:

Apatite, Electro-Spinning, Non-Woven Fabric, Silica, Surface Area

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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