Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24713
Title: Composite coating of bonelike apatite particles and collagen fibers on poly L-lactic acid formed through an accelerated biomimetic coprecipitation process
Authors: Chen, Y
Mak, AFT
Wang, M
Li, J
Issue Date: 2006
Source: Journal of biomedical materials research. Part B, Applied biomaterials, 2006, v. 77, no. 2, p. 315-322
Abstract: Collagen and apatite were coprecipitated as a composite coating on poly L-lactic acid (PLLA) in an accelerated biomimetic process. The incubation solution contained collagen (1 g/L) and simulated body fluid with 5 times inorganic ionic concentrations as human blood plasma. The coating formed on PLLA films and scaffolds after a 24-h incubation was characterized by using energy-dispersive X-ray spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy (SEM). It was shown that the coating contained carbonated bonelike apatite and collagen, which was similar in composition to natural hone. SEM showed a complex composite coating of submicron bonelike apatite particulates combined with collagen fibrils. It is expected that such biocomposite coating may better facilitate cell interaction and osteoconductivity. This work provided an efficient process to obtain bonelike apatite/collagen composite coating, which is potentially useful in hone tissue engineering.
Keywords: Biomimetic
Bone
Bonelike apatite
Collagen
Simulated body fluid
Publisher: John Wiley & Sons
Journal: Journal of biomedical materials research. Part B, Applied biomaterials 
ISSN: 1552-4973
EISSN: 1552-4981
DOI: 10.1002/jbm.b.30356
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