Paper Title:
Preparation of Unsintering Calcium Phosphate Macroporous Materials with Hydroxyapatite Nanowhisker In Situ Growth
  Abstract

Unsintering macroporous calcium phosphate scaffolds with macropore sizes of 200∼400μm and hydroxyapatite nanofiber of in-situ growth were prepared by coating porous polyurethane templates with α-tricalcium phosphate bone cement (CPC) slurry, and their subsequent hydrolysis to calcium deficient hydroxyapatite (HAp) during the self-setting processes are presented. The effects of Sr2+ (SrNO3) on the nucleation, growth of the hydroxyapatite nanofiber and phase constitution were studied. The results show that the main component of the coating is HA after hydrolysis for 72h and the Sr2+ added could depress the growth of block or sheet HA crystal and promote the nanowhisker growth. This new processing technique can be used to improve the bioactivity of porous polymer template while maintaining its macroporous structure.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
1609-1611
DOI
10.4028/www.scientific.net/KEM.336-338.1609
Citation
Z. Y. Xiao, S. Cai, X. Z. Yu, "Preparation of Unsintering Calcium Phosphate Macroporous Materials with Hydroxyapatite Nanowhisker In Situ Growth", Key Engineering Materials, Vols. 336-338, pp. 1609-1611, 2007
Online since
April 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: J.A. Delgado, I. Harr, Amisel Almirall, Sergio del Valle, Josep A. Planell, M.P. Ginebra
Abstract:In this work an injectable and self setting calcium phosphate/albumen foam is developed. The effect of both the amount of albumen and the...
157
Authors: Jian Pan, Jie Mo Tian, Li Min Dong, Chen Wang, Qing Feng Zan
Abstract:This work has achieved a novel self-setting biphase porous calcium phosphate cement (CPC). This biphase porous CPC is mainly formed by...
1615
Authors: Chang Sheng Liu
Abstract:Hydroxyapatite (HAP)-forming calcium phosphate cement (CPC), due to the high biocompatibility, easy-to-shape characteristic, and the...
2267
Authors: Hua Liu, Chang Ren Zhou
Abstract:Calcium phosphate cement (CPC) sets in situ to form solid hydroxyapatite, can conform to complex cavity shapes without machining, has...
19
Authors: Xiao Peng Qi
Abstract:An injectable calcium phosphate cement (CPC) modified with sodium citrate was developed in the present study. The effects of sodium citrate...
151