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Article: A comparative study of apatite coating and apatite/collagen composite coating fabricated on NiTi shape memory alloy through electrochemical deposition

TitleA comparative study of apatite coating and apatite/collagen composite coating fabricated on NiTi shape memory alloy through electrochemical deposition
Authors
KeywordsApatite
Collagen
Composite coating
Electrochemical deposition
NiTi shape memory alloy (SMA)
Issue Date2011
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/matlet
Citation
Materials Letters, 2011, v. 65 n. 17-18, p. 2575-2577 How to Cite?
AbstractTo improve bioactivity and long-term biocompatibility of NiTi shape memory alloys (SMAs), apatite and apatite/collagen composite coatings were formed at 37 °C on the metal through electrochemical deposition using double-strength simulated body fluid (2SBF) without and with dissolved collagen, respectively. Surface characteristics, wettability and chemical stability of the coatings were subsequently studied and comparisons were made between the apatite coating and apatite/collagen composite coatings. Surface morphology of the apatite/collagen coating revealed that many collagen fibers were embedded in apatite with flake-like structures. The phase composition and chemical composition analyses showed that calcium-deficient and carbonated hydroxyapatite with low crystallinity was formed in the apatite and apatite/collagen coatings. Moreover, the wettability of uncoated and coated NiTi SMA samples was investigated. Compared to both uncoated and apatite-coated NiTi SMA samples, apatite/collagen-coated samples were more chemically stable and exhibited higher corrosion resistance. © 2011 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/157123
ISSN
2015 Impact Factor: 2.437
2015 SCImago Journal Rankings: 0.807
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorSun, Ten_US
dc.contributor.authorLee, WCen_US
dc.contributor.authorWang, Men_US
dc.date.accessioned2012-08-08T08:45:26Z-
dc.date.available2012-08-08T08:45:26Z-
dc.date.issued2011en_US
dc.identifier.citationMaterials Letters, 2011, v. 65 n. 17-18, p. 2575-2577en_US
dc.identifier.issn0167-577Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/157123-
dc.description.abstractTo improve bioactivity and long-term biocompatibility of NiTi shape memory alloys (SMAs), apatite and apatite/collagen composite coatings were formed at 37 °C on the metal through electrochemical deposition using double-strength simulated body fluid (2SBF) without and with dissolved collagen, respectively. Surface characteristics, wettability and chemical stability of the coatings were subsequently studied and comparisons were made between the apatite coating and apatite/collagen composite coatings. Surface morphology of the apatite/collagen coating revealed that many collagen fibers were embedded in apatite with flake-like structures. The phase composition and chemical composition analyses showed that calcium-deficient and carbonated hydroxyapatite with low crystallinity was formed in the apatite and apatite/collagen coatings. Moreover, the wettability of uncoated and coated NiTi SMA samples was investigated. Compared to both uncoated and apatite-coated NiTi SMA samples, apatite/collagen-coated samples were more chemically stable and exhibited higher corrosion resistance. © 2011 Elsevier B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/matleten_US
dc.relation.ispartofMaterials Lettersen_US
dc.subjectApatiteen_US
dc.subjectCollagenen_US
dc.subjectComposite coatingen_US
dc.subjectElectrochemical depositionen_US
dc.subjectNiTi shape memory alloy (SMA)en_US
dc.titleA comparative study of apatite coating and apatite/collagen composite coating fabricated on NiTi shape memory alloy through electrochemical depositionen_US
dc.typeArticleen_US
dc.identifier.emailSun, T: sunt@ime.a-star.edu.sgen_US
dc.identifier.emailWang, M: memwang@hku.hk-
dc.identifier.authorityWang, M=rp00185en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.matlet.2011.05.107en_US
dc.identifier.scopuseid_2-s2.0-79959547261en_US
dc.identifier.hkuros207446-
dc.identifier.volume65en_US
dc.identifier.issue17-18en_US
dc.identifier.spage2575en_US
dc.identifier.epage2577en_US
dc.identifier.isiWOS:000293929300008-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridWang, M=15749714100en_US
dc.identifier.scopusauthoridLee, WC=38862100400en_US
dc.identifier.scopusauthoridSun, T=7402922748en_US
dc.identifier.citeulike9409526-

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