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Article: Surface characteristics, mechanical properties, and cytocompatibility of oxygen plasma-implanted porous nickel titanium shape memory alloy

TitleSurface characteristics, mechanical properties, and cytocompatibility of oxygen plasma-implanted porous nickel titanium shape memory alloy
Authors
KeywordsBiocompatibility
Plasma immersion ion implantation
Porous nickel-titanium
Shape memory alloys
Issue Date2006
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0021-9304/
Citation
Journal Of Biomedical Materials Research - Part A, 2006, v. 79 n. 1, p. 139-146 How to Cite?
AbstractGood surface properties and biocompatibility are crucial to porous NiTi shape memory alloys (SMA) used in medical implants, as possible nickel release from porous NiTi may cause deleterious effects in the human body. In this work, oxygen plasma immersion ion implantation (O-PIII) was used to reduce the amount of nickel leached from porous NiTi alloys with a porosity of 42% prepared by capsule-free hot isostatic pressing. The mechanical properties, surface properties, and biocompatibility were studied by compression tests, X-ray photoelectron spectroscopy (XPS), and cell culturing. The O-PIII porous NiTi SMAs have good mechanical properties and excellent superelasticity, and the amount of nickel leached from the O-PIII porous NiTi is much less than that from the untreated samples. XPS results indicate that a nickel-depleted surface layer predominantly composed of TiO2 is produced by O-PIII and acts as a barrier against out-diffusion of nickel. The cell culturing tests reveal that both the O-PIII and untreated porous NiTi alloys have good biocompatibility. © 2006 Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/79637
ISSN
2004 Impact Factor: 3.652
2006 SCImago Journal Rankings: 0.474
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWu, SLen_HK
dc.contributor.authorChu, PKen_HK
dc.contributor.authorLiu, XMen_HK
dc.contributor.authorChung, CYen_HK
dc.contributor.authorHo, JPYen_HK
dc.contributor.authorChu, CLen_HK
dc.contributor.authorTjong, SCen_HK
dc.contributor.authorYeung, KWKen_HK
dc.contributor.authorLu, WWen_HK
dc.contributor.authorCheung, KMCen_HK
dc.contributor.authorLuk, KDKen_HK
dc.date.accessioned2010-09-06T07:56:54Z-
dc.date.available2010-09-06T07:56:54Z-
dc.date.issued2006en_HK
dc.identifier.citationJournal Of Biomedical Materials Research - Part A, 2006, v. 79 n. 1, p. 139-146en_HK
dc.identifier.issn0021-9304en_HK
dc.identifier.urihttp://hdl.handle.net/10722/79637-
dc.description.abstractGood surface properties and biocompatibility are crucial to porous NiTi shape memory alloys (SMA) used in medical implants, as possible nickel release from porous NiTi may cause deleterious effects in the human body. In this work, oxygen plasma immersion ion implantation (O-PIII) was used to reduce the amount of nickel leached from porous NiTi alloys with a porosity of 42% prepared by capsule-free hot isostatic pressing. The mechanical properties, surface properties, and biocompatibility were studied by compression tests, X-ray photoelectron spectroscopy (XPS), and cell culturing. The O-PIII porous NiTi SMAs have good mechanical properties and excellent superelasticity, and the amount of nickel leached from the O-PIII porous NiTi is much less than that from the untreated samples. XPS results indicate that a nickel-depleted surface layer predominantly composed of TiO2 is produced by O-PIII and acts as a barrier against out-diffusion of nickel. The cell culturing tests reveal that both the O-PIII and untreated porous NiTi alloys have good biocompatibility. © 2006 Wiley Periodicals, Inc.en_HK
dc.languageengen_HK
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0021-9304/en_HK
dc.relation.ispartofJournal of Biomedical Materials Research - Part Aen_HK
dc.rightsJournal of Biomedical Materials Research Part A. Copyright © John Wiley & Sons, Inc.en_HK
dc.subjectBiocompatibilityen_HK
dc.subjectPlasma immersion ion implantationen_HK
dc.subjectPorous nickel-titaniumen_HK
dc.subjectShape memory alloysen_HK
dc.subject.meshAlloys-
dc.subject.meshBiocompatible Materials-
dc.subject.meshNickel-
dc.subject.meshOxygen-
dc.subject.meshTitanium-
dc.titleSurface characteristics, mechanical properties, and cytocompatibility of oxygen plasma-implanted porous nickel titanium shape memory alloyen_HK
dc.typeArticleen_HK
dc.identifier.emailYeung, KWK:wkkyeung@hkucc.hku.hken_HK
dc.identifier.emailLu, WW:wwlu@hku.hken_HK
dc.identifier.emailCheung, KMC:cheungmc@hku.hken_HK
dc.identifier.emailLuk, KDK:hcm21000@hku.hken_HK
dc.identifier.authorityYeung, KWK=rp00309en_HK
dc.identifier.authorityLu, WW=rp00411en_HK
dc.identifier.authorityCheung, KMC=rp00387en_HK
dc.identifier.authorityLuk, KDK=rp00333en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/jbm.a.30705en_HK
dc.identifier.pmid16779766-
dc.identifier.scopuseid_2-s2.0-33749003178en_HK
dc.identifier.hkuros113828en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33749003178&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume79en_HK
dc.identifier.issue1en_HK
dc.identifier.spage139en_HK
dc.identifier.epage146en_HK
dc.identifier.isiWOS:000240509300016-
dc.identifier.scopusauthoridWu, SL=15125218800en_HK
dc.identifier.scopusauthoridChu, PK=36040705700en_HK
dc.identifier.scopusauthoridLiu, XM=8408205200en_HK
dc.identifier.scopusauthoridChung, CY=8100842800en_HK
dc.identifier.scopusauthoridHo, JPY=7402650045en_HK
dc.identifier.scopusauthoridChu, CL=7404345713en_HK
dc.identifier.scopusauthoridTjong, SC=7102940723en_HK
dc.identifier.scopusauthoridYeung, KWK=13309584700en_HK
dc.identifier.scopusauthoridLu, WW=7404215221en_HK
dc.identifier.scopusauthoridCheung, KMC=7402406754en_HK
dc.identifier.scopusauthoridLuk, KDK=7201921573en_HK

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