Biofunctional surface layer and its bonding strength in low modulus b β-type titanium alloy for biomedical applications

Mitsuo Niinomi, Masaaki Nakai, Junko Hieda, Ken Cho, Takashi Goto, Takao Hanawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently, low-modulus β-type titanium alloys have been the focus of considerable attention because of their high biocompatibility and their low moduli that make them effective for inhibiting bone atrophy and for enhancing bone remodeling. However, the biofunctinalities of titanium alloys, such as bone conductivity, blood compatibility, and soft tissue compatibility, are poor. Therefore, surface modification techniques such as bioactive ceramic surface modification and blood- and soft-tissue- compatible polymer surface modification are applied to titanium alloys. Hydroxyapatite (HAp) surface modification via metal organic chemical vapor deposition (MOCVD) and segmented polyurethane (SPU) surface modification via silane coupling treatment are effective techniques to add biofunctionalites to titanium alloys. HAp surface modification via MOCVD and SPU surface modification using three kinds of silane coupling agents on a low modulus beta-type titanium alloy, namely, TNTZ, are discussed. Moreover, the bonding strengths of HAp and SPU on the surface of TNTZ, which are important parameters, are also discussed.

Original languageEnglish
Title of host publicationAdvanced Materials Research
PublisherTrans Tech Publications
Pages78-84
Number of pages7
Volume783-786
ISBN (Print)9783038350736
DOIs
Publication statusPublished - 2014
Event8th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2013 - Las Vegas, NV, United States
Duration: 2013 Dec 22013 Dec 6

Publication series

NameAdvanced Materials Research
Volume783-786
ISSN (Print)10226680

Other

Other8th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2013
CountryUnited States
CityLas Vegas, NV
Period13/12/213/12/6

Keywords

  • Biofunctional surface layer
  • Biomedical applications
  • Bonding strength
  • Low modulus β-type titanium alloy

ASJC Scopus subject areas

  • Engineering(all)

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