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Ultrafine Grinding of Radix Salvia Miltiorrhiza Particles and the Physicochemical Properties by High Speed Centrifugal Sheering
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Dialysis Preparation of Zinc-Substituted Nano-Hydroxyapatite and Its Characterization
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Surface Dissolution of Hydroxyapatite Prepared by Microwave Sintering
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Dialysis Preparation of Zinc-Substituted Nano-Hydroxyapatite and Its Characterization

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Abstract:

Nano-sized zinc-substituted hydroxyapatite (nano-ZnHA) has stimulatory effect on bone formation and inhibitory effect on osteoclastic bone resorption in vivo. Nano-ZnHA with serial zinc fractions (0, 2, 5, 10 mol%) were synthesized by an improved precipitation method based on dialysis process. Transmission electron microscopy observation indicated that the increase of Zn fraction led to smaller crystallite. X-ray diffraction of the products revealed that some typical characteristic peaks of HA displayed when the Zn fraction was below 10%. Fourier transform infrared spectroscopy showed that the bending peaks of the group-OH in HA became wider with the increase of Zn fraction and it disappeared at 10 mol%. The current work demonstrated that zinc could substitute for calcium into hydroxyapatite in the limited range of composition by using dialysis process.

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Periodical:

Key Engineering Materials (Volumes 330-332)

Pages:

219-222

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.330-332.219

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Online since:

February 2007

Authors:

Sheng Min Zhang, W. Hu, W. Zhou, J. Li, Y.H. Liu, Z.Y. Qiu

Keywords:

Dialysis, Nanohydroxyapatite (HA), Zinc Substituted

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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