Paper Title:
Novel Composite of Nano-Sized SiO2/Chitosan Induce the Growth of HAp Crystal
  Abstract

A novel hybrid material of chitosan/nano-sized SiO2/hydroxyapatite (HAp) composite was prepared through a biomimetic approach. HAp deposited in situ on the surface of chitosan/ nano-sized SiO2 composite film in simulate body fluid (SBF) solution at 36.5°C. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) were performed to study composition and morphological characteristics of the HAp crystal. The results indicated that nano-sized SiO2 dispersed in the chitosan film provided initial nucleation sites for the growth of the HAp in SBF solution by adsorbing further PO4 3−, Ca2+ due to the induction of HAp formed. The strength of the composite was largely improved because of the addition of nano-sized SiO2.

  Info
Periodical
Key Engineering Materials (Volumes 361-363)
Main Theme
Edited by
Guy Daculsi and Pierre Layrolle
Pages
483-486
DOI
10.4028/www.scientific.net/KEM.361-363.483
Citation
S. W. Huang, X. D. Wang, W. J. Zhang, C. Lu, Z. H. Zhu, X. T. Huang, Y. Zeng, "Novel Composite of Nano-Sized SiO2/Chitosan Induce the Growth of HAp Crystal ", Key Engineering Materials, Vols. 361-363, pp. 483-486, 2008
Online since
November 2007
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