Paper Title:

Preparation of Alginate/Silica Composite Beads with In Vitro Apatite-Forming Ability

Periodical Advanced Materials Research (Volumes 236 - 238)
Main Theme Application of Chemical Engineering
Edited by Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
Pages 1889-1892
DOI 10.4028/www.scientific.net/AMR.236-238.1889
Citation Fan Xiao et al., 2011, Advanced Materials Research, 236-238, 1889
Online since May, 2011
Authors Fan Xiao, Fei Gao, Zhi Xian Zhang, Wei Li
Keywords Apatite, Biomedical, Composite Beads, Monetite, Silica, Water Glass
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Abstract

Alginate/silica composite beads of mm-size for biomedical applications were prepared from water glass and sodium alginate via a simple sol-gel route. They kept their original shapes when soaked in the phosphate solution of lower pH. In this case, faint calcium phosphate peaks were observed in X-ray diffraction. Peaks corresponding to phosphate group were also found in FT-IR. Apatite was obtained on the surface of beads made with calcium chloride after soaking in phosphate solution while monetite was formed on the surface of beads made with calcium nitrate.