Journal
MATERIALS LETTERS
Volume 128, Issue -, Pages 179-182Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2014.04.142
Keywords
Calcium phosphate; Hydrothermal treatment; Porous structures; 3D whiskers; Bone tissue engineering
Funding
- National Basic Research Program of China [2011CB606201]
- National Natural Science Foundation of China [81190131]
- National Sci & Tech Support Plan of China [2012BA117801, 2012BAI42G00]
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Porous three-dimensional (3D) whisker-covered calcium phosphate (CaP) scaffolds were fabricated using a hydrothermal method. Porous CaP ceramics were first prepared by applying the H2O2 foaming method to mimic the porous structure of bones. Then, three-dimensional (3D) hydroxyapatite (Ca-10(PO4)(6)(OH)(2), HAp) micro-whiskers were generated in CaP ceramics by hydrothermal treatment. Scanning electronic microscopy (SEM) images revealed that the scaffolds maintained their porous structures and newly generated micro-whiskers with 3D morphologies were vertically grown on ceramic inner walls. Energy dispersive X-ray (EDX) and X-ray diffraction (XRD) confirmed that the micro-whiskers are made of HAp microcrystals. The HAp whisker formation mechanism was proposed. 3D HAP whisker-covered porous CaP ceramics provide a structural design reference for bone tissue engineering. (C) 2014 Elsevier B.V. All rights reserved.
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