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Composite coating of bonelike apatite particles and collagen fibers on poly L‐lactic acid formed through an accelerated biomimetic coprecipitation process
Author(s) -
Chen Yun,
Mak Arthur F. T.,
Wang Min,
Li Jiashen
Publication year - 2006
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.30356
Subject(s) - apatite , materials science , simulated body fluid , coating , composite number , fourier transform infrared spectroscopy , scanning electron microscope , chemical engineering , biocomposite , coprecipitation , composite material , engineering
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 bone. 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 bone tissue engineering. © 2006 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2006