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Porous calcium phosphate ceramics prepared by coating polyurethane foams with calcium phosphate cements

Miao, Xigeng and Hu, Yifei and Liu, Jianli and Wong, A. P. (2004) Porous calcium phosphate ceramics prepared by coating polyurethane foams with calcium phosphate cements. Materials Letters, 58(3-4). pp. 397-402.

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DOI : 10.1016/S0167-577X(03)00510-X

Abstract

Porous calcium phosphates have important biomedical applications such as bone defect fillers, tissue engineering scaffolds, and drug delivery systems. While a number of methods to produce the porous calcium phosphate ceramics have been reported, this study aimed to develop a new fabrication method. The new method involved the use of polyurethane foams to produce highly porous calcium phosphate cements (CPCs). By firing the porous CPCs at 1200 degrees Celsius, the polyurethane foams were burnt off and the CPCs prepared at room temperature were converted into sintered porous hydroxyapatite-based calcium phosphate ceramics. The sintered porous calcium phosphate ceramics could then be coated with a layer of the CPC at room temperature, resulting in high porosity, high pore interconnectivity, and controlled pores size.

ID Code:6794
Item Type:Journal Article
Keywords :Porosity, Ceramics, Calcium phosphate cement, Hydroxyapatite, Tetracalcium phosphate
ISSN:0167-577X
Subjects:Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Composite and Hybrid Materials (091202)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Polymers and Plastics (091209)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomaterials (090301)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200) > Ceramics (091201)
Divisions:QUT Faculties and Divisions > Faculty of Built Environment and Engineering
Institutes > Institute of Health and Biomedical Innovation
Copyright Owner :Copyright 2004 Elsevier
Copyright Statement :Reproduced in accordance with the copyright policy of the publisher.
Deposited On:29 Mar 2007
Last Modified:23 Jan 2009 03:24

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