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dc.contributor.authorSiddiqui, Humair A.en_NZ
dc.contributor.authorPickering, Kim L.en_NZ
dc.contributor.authorMucalo, Michael R.en_NZ
dc.date.accessioned2018-11-18T23:38:35Z
dc.date.available2018-10-01en_NZ
dc.date.available2018-11-18T23:38:35Z
dc.date.issued2018en_NZ
dc.identifier.citationSiddiqui, H. A., Pickering, K. L., & Mucalo, M. R. (2018). A review on the use of Hydroxyapatite-carbonaceous structure composites in bone replacement materials for strengthening purposes. Materials, 11(10). https://doi.org/10.3390/ma11101813en
dc.identifier.issn1996-1944en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/12197
dc.description.abstractBiomedical materials constitute a vast scientific research field, which is devoted to producing medical devices which aid in enhancing human life. In this field, there is an enormous demand for long-lasting implants and bone substitutes that avoid rejection issues whilst providing favourable bioactivity, osteoconductivity and robust mechanical properties. Hydroxyapatite (HAp)-based biomaterials possess a close chemical resemblance to the mineral phase of bone, which give rise to their excellent biocompatibility, so allowing for them to serve the purpose of a bone-substituting and osteoconductive scaffold. The biodegradability of HAp is low (Ksp ≈ 6.62 × 10⁻¹²⁶) as compared to other calcium phosphates materials, however they are known for their ability to develop bone-like apatite coatings on their surface for enhanced bone bonding. Despite its favourable bone regeneration properties, restrictions on the use of pure HAp ceramics in high load-bearing applications exist due to its inherently low mechanical properties (including low strength and fracture toughness, and poor wear resistance). Recent innovations in the field of bio-composites and nanoscience have reignited the investigation of utilising different carbonaceous materials for enhancing the mechanical properties of composites, including HAp-based bio-composites. Researchers have preferred carbonaceous materials with hydroxyapatite due to their inherent biocompatibility and good structural properties. It has been demonstrated that different structures of carbonaceous material can be used to improve the fracture toughness of HAp, as they can easily serve the purpose of being a second phase reinforcement, with the resulting composite still being a biocompatible material. Nanostructured carbonaceous structures, especially those in the form of fibres and sheets, were found to be very effective in increasing the fracture toughness values of HAp. Minor addition of CNTs (3 wt.%) has resulted in a more than 200% increase in fracture toughness of hydroxyapatite-nanorods/CNTs made using spark plasma sintering. This paper presents a current review of the research field of using different carbonaceous materials composited with hydroxyapatite with the intent being to produce high performance biomedically targeted materials.
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherMDPIen_NZ
dc.rights© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
dc.subjectScience & Technologyen_NZ
dc.subjectTechnologyen_NZ
dc.subjectMaterials Science, Multidisciplinaryen_NZ
dc.subjectMaterials Scienceen_NZ
dc.subjecthydroxyapatiteen_NZ
dc.subjectcarbonen_NZ
dc.subjectgrapheneen_NZ
dc.subjectstrengtheningen_NZ
dc.subjecttougheningen_NZ
dc.subjectfractureen_NZ
dc.subjectcrack bridgingen_NZ
dc.subjectnanotechnologyen_NZ
dc.subjectfracture mechanicsen_NZ
dc.subjectENHANCED MECHANICAL-PROPERTIESen_NZ
dc.subjectBOVINE-DERIVED HYDROXYAPATITEen_NZ
dc.subjectCALCIUM-PHOSPHATE CERAMICSen_NZ
dc.subjectTITANIUM-ALLOY IMPLANTSen_NZ
dc.subjectREDUCED GRAPHENE OXIDEen_NZ
dc.subjectIN-SITU SYNTHESISen_NZ
dc.subjectREINFORCED HYDROXYAPATITEen_NZ
dc.subjectBIOMEDICAL APPLICATIONSen_NZ
dc.subjectFRACTURE-TOUGHNESSen_NZ
dc.subjectBIOMIMETIC SYNTHESISen_NZ
dc.titleA review on the use of Hydroxyapatite-carbonaceous structure composites in bone replacement materials for strengthening purposesen_NZ
dc.typeJournal Article
dc.identifier.doi10.3390/ma11101813en_NZ
dc.relation.isPartOfMaterialsen_NZ
pubs.elements-id226764
pubs.issue10en_NZ
pubs.publication-statusPublisheden_NZ
pubs.volume11en_NZ
uow.identifier.article-noARTN 1813


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