Kumar, Alok and Biswas, Krishanu and Basu, Bikramjit (2015) Hydroxyapatite-titanium bulk composites for bone tissue engineering applications. In: JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A, 103 (2). pp. 791-806.
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The research work on bulk hydroxyapatite (HA)-based composites are driven by the need to develop biomaterials with better mechanical properties without compromising its bioactivity and biocompatibility properties. Despite several years of research, the mechanical properties of the HA-based composites still need to be enhanced to match the properties of natural cortical bone. In this regard, the scope of this review on the HA-based bulk biomaterials is limited to the processing and the mechanical as well as biocompatibility properties for bone tissue engineering applications of a model system that is hydroxyapatite-titanium (HA-Ti) bulk composites. It will be discussed in this review how HA-Ti based bulk composites can be processed to have better fracture toughness and strength without compromising biocompatibility. The advantages of the functionally gradient materials to integrate the mechanical and biocompatibility properties is a promising approach in hard tissue engineering and has been emphasized here in reference to the limited literature reports. On the biomaterials fabrication aspect, the recent results are discussed to demonstrate that advanced manufacturing techniques, like spark plasma sintering can be adopted as a processing route to restrict the sintering reactions, while enhancing the mechanical properties. Various toughening mechanisms related to careful tailoring of microstructure are discussed. The in vitro cytocompatibilty, cell fate processes as well as in vivo biocompatibility results are also reviewed and the use of flow cytometry to quantify in vitro cell fate processes is being emphasized. (C) 2014 Wiley Periodicals, Inc.
| Item Type: | Journal Article |
|---|---|
| Publication: | JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A |
| Additional Information: | Copy right for this article belongs to the WILEY-BLACKWELL, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA |
| Department/Centre: | Division of Chemical Sciences > Materials Research Centre |
| Date Deposited: | 23 Mar 2015 10:00 |
| Last Modified: | 23 Mar 2015 10:00 |
| URI: | http://eprints.iisc.ac.in/id/eprint/51087 |
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