Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/43171
Title: Hybrid coating of hydroxyapatite and collagen within poly(D,L-lactic-co-glycolic acid) scaffold
Authors: Li, JS
Yuan, XY
He, F
Mak, AFT
Keywords: Tissue engineering
Hydroxyapatite
Collagen
Scaffolds
Poly(d,l-lactic-co-glycolic acid)
Issue Date: 2008
Publisher: John Wiley & Sons
Source: Journal of biomedical materials research. Part B, Applied biomaterials, 2008, v. 86B, no. 2, p. 381-388 How to cite?
Journal: Journal of biomedical materials research. Part B, Applied biomaterials 
Abstract: To improve the cell-affinity of biodegradable polymer scaffold, coating hydroxyapatite (HA) or collagen on the surface of polymer materials seemed to be a strategy to combine both advantages of them. The objective of this study was to develop a novel method to introduce HA and collagen inside polymer scaffold uniformly. HA and collagen suspension was mixed with paraffin microspheres, and molded to form a composite sample. After the sample was dried, HA/collagen composite was left among and on the surface of paraffin microspheres. Poly(D,L-lactic-co-glycolic acid) (PLGA) (50/50) solution was cast into the inter-space of the paraffin microspheres and dried. Afterwards, the paraffin was dissolved and removed, HA/collagen was transferred to the surface and even inside of the pore wall of PLGA scaffolds. Collagen fibers and HA particles which were inlaid inside the PLGA pore wall could help to enhance the coating strength between HA/Col coating and the pore wall surface of the PLGA scaffold. The scaffolds with HA/Col coating were expected to exhibit desirable properties in bone tissue engineering.
URI: http://hdl.handle.net/10397/43171
ISSN: 1552-4973
EISSN: 1552-4981
DOI: 10.1002/jbm.b.31031
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