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Article: Nickel release behavior, cytocompatibility, and superelasticity of oxidized porous single-phase NiTi

TitleNickel release behavior, cytocompatibility, and superelasticity of oxidized porous single-phase NiTi
Authors
KeywordsBiocompatibility
Nickel release
Oxidation
Porous NiTi
Superelasticity
Issue Date2007
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, 2007, v. 81 n. 4, p. 948-955 How to Cite?
AbstractPorous NiTi shape memory alloys are one of the promising biomaterials for surgical implants because of their unique shape memory effects and porous structure with open pores. However, the complex surface morphology and larger area of porous NiTi compared to dense NiTi make it more vulnerable from the viewpoint of release of nickel, which can cause deleterious effects in the human body. It is also more difficult to modify the exposed surfaces of a porous structure using conventional surface modification technologies. In this work, oxidation in conjunction with postreaction heat treatment was used to modify the surfaces of porous single-phase NiTi prepared by capsule-free hot isostatic pressing to mitigate Ni leaching and enhance the surface properties. Differential scanning calorimetry thermal analysis, uniaxial compression tests, inductively-coupled plasma mass spectrometry, and cell cultures reveal that porous NiTi alloys oxidized at 450°C for 1 h have an austenite transition temperature below 37°C, excellent superelasticity, lower nickel release, and no cytotoxicity. © 2007 Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/79445
ISSN
2015 Impact Factor: 3.263
2015 SCImago Journal Rankings: 0.979
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWu, Sen_HK
dc.contributor.authorLiu, Xen_HK
dc.contributor.authorChan, YLen_HK
dc.contributor.authorHo, JPYen_HK
dc.contributor.authorChung, CYen_HK
dc.contributor.authorChu, PKen_HK
dc.contributor.authorChu, CLen_HK
dc.contributor.authorYeung, KWKen_HK
dc.contributor.authorLu, WWen_HK
dc.contributor.authorCheung, KMCen_HK
dc.contributor.authorLuk, KDKen_HK
dc.date.accessioned2010-09-06T07:54:46Z-
dc.date.available2010-09-06T07:54:46Z-
dc.date.issued2007en_HK
dc.identifier.citationJournal Of Biomedical Materials Research - Part A, 2007, v. 81 n. 4, p. 948-955en_HK
dc.identifier.issn1549-3296en_HK
dc.identifier.urihttp://hdl.handle.net/10722/79445-
dc.description.abstractPorous NiTi shape memory alloys are one of the promising biomaterials for surgical implants because of their unique shape memory effects and porous structure with open pores. However, the complex surface morphology and larger area of porous NiTi compared to dense NiTi make it more vulnerable from the viewpoint of release of nickel, which can cause deleterious effects in the human body. It is also more difficult to modify the exposed surfaces of a porous structure using conventional surface modification technologies. In this work, oxidation in conjunction with postreaction heat treatment was used to modify the surfaces of porous single-phase NiTi prepared by capsule-free hot isostatic pressing to mitigate Ni leaching and enhance the surface properties. Differential scanning calorimetry thermal analysis, uniaxial compression tests, inductively-coupled plasma mass spectrometry, and cell cultures reveal that porous NiTi alloys oxidized at 450°C for 1 h have an austenite transition temperature below 37°C, excellent superelasticity, lower nickel release, and no cytotoxicity. © 2007 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.subjectNickel releaseen_HK
dc.subjectOxidationen_HK
dc.subjectPorous NiTien_HK
dc.subjectSuperelasticityen_HK
dc.titleNickel release behavior, cytocompatibility, and superelasticity of oxidized porous single-phase NiTien_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1549-3296&volume=81A&spage=948&epage=955&date=2007&atitle=Nickel+release+behavior,+Cytocompatibility,+and+superelasticity+of+oxidized+porous+single-phase+NiTien_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.31115en_HK
dc.identifier.pmid17252548-
dc.identifier.scopuseid_2-s2.0-34249706261en_HK
dc.identifier.hkuros145166en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34249706261&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume81en_HK
dc.identifier.issue4en_HK
dc.identifier.spage948en_HK
dc.identifier.epage955en_HK
dc.identifier.isiWOS:000246636600019-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWu, S=15125218800en_HK
dc.identifier.scopusauthoridLiu, X=8408205200en_HK
dc.identifier.scopusauthoridChan, YL=8250546500en_HK
dc.identifier.scopusauthoridHo, JPY=7402650045en_HK
dc.identifier.scopusauthoridChung, CY=8100842800en_HK
dc.identifier.scopusauthoridChu, PK=36040705700en_HK
dc.identifier.scopusauthoridChu, CL=7404345713en_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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