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Hydroxyapatite formation on metallurgical grade nanoporous silicon particles

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dc.contributor.author Chadwick, Edward G.
dc.contributor.author Clarkin, O.M.
dc.contributor.author Tanner, David A.
dc.date.accessioned 2014-02-27T12:04:47Z
dc.date.available 2014-02-27T12:04:47Z
dc.date.issued 2010
dc.identifier.citation Chadwick, EG; Clarkin, OM; Tanner, DA (2010) 'Hydroxyapatite formation on metallurgical grade nanoporous silicon particles'. Journal of Materials Science, 45 (23):6562-6568. en_US
dc.identifier.uri http://hdl.handle.net/10344/3701
dc.description peer-reviewed en_US
dc.description.abstract Studies into bone-like apatite or hydroxyapatite (HA) growth on potential biomaterials when in contact with simulated body fluid (SBF) not only establish a general method for determining bioactivity but coincidently lead to the design of new bioactive materials in biomedical and tissue engineering fields. Previous studies of HA growth on porous silicon (PS) have examined electrochemically etched silicon substrates after immersion in a SBF. This study differs from previous work in that it focuses on characterising HA growth on chemically etched metallurgical grade nanoporous silicon particles. The PS used in this study is comprised of nanosponge particles with disordered pore structures with pore sizes ranging up to 10 nm on micron-sized particles. The silicon particles are analysed before and after immersion into SBF using scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray (EDX) analysis and X-ray photoelectron spectroscopy (XPS). Results indicate that a HA layer forms on the surface of the nanosponge particles. Experimental analysis indicates that the morphology and calcium-to-phosphorus ratio (Ca/P) verify the formation of crystalline HA on the nanoporous silicon particles. en_US
dc.language.iso eng en_US
dc.publisher Springer en_US
dc.relation.ispartofseries Journal of Materials Science;45(23), pp. 6562-6568
dc.relation.uri http://dx.doi.org/10.1007/s10853-010-4745-4
dc.rights The original publication is available at www.springerlink.com en_US
dc.subject porous silicon en_US
dc.subject bioactivity en_US
dc.subject growth en_US
dc.title Hydroxyapatite formation on metallurgical grade nanoporous silicon particles en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.date.updated 2013-11-29T16:43:24Z
dc.description.version accepted
dc.contributor.sponsor EI en_US
dc.relation.projectid EI IP 2007 0380 Vesta/UL en_US
dc.relation.projectid PRTLI cycle 4 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1133196
dc.internal.copyrightchecked Yes
dc.description.status peer-reviewed


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