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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 668Preparing Technology of Porous...

Preparing Technology of Porous Hydroxyapatite/Chitosan Bioceramics

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Abstract:

Hydroxyapatite/Chitosan bioceramics were fabricated by combining in-situ chemical synthesis and freeze drying method, using (NH4)2HPO4, Ca(NO3)2·4H2O, and chitosan(CS) as raw materials. The effect of solid loading and freeze-drying time on microstructures of hydroxyapatite/Chitosan bioceramics was studied. The microstructures of the fabricated porous bioceramics were investigated by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that the hydroxyapatite/Chitosan bioceramics have interconnected porous structures from several microns to 200um, more suitable to bone tissue implantation. In addition, the porous structures are affected solid loading of slurry and freeze-drying time.

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Materials Science and Engineering II

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Periodical:

Advanced Materials Research (Volume 668)

Pages:

937-940

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.668.937

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Online since:

March 2013

Authors:

Feng Wang, Li Wei Sun, Jian Xing Shen, Ping Zhao

Keywords:

Chitosan, Freeze-Drying, Hydroxyapatite (HAP), Porous Bioceramic

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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