Study on bioactivity and bonding strength between Ti alloy substrate and TiO2 film by micro-arc oxidation

Min Ho Hong, Dong Hyun Lee, Kwang Mahn Kim, Yong Keun Lee

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

In this study, the Ti alloy substrate was simultaneously coated with TiO2 film and hydroxyapatite using micro-arc oxidation, a relatively new surface modification technique where thick, hard, and anticorrosive oxide coatings can be easily and cost-effectively fabricated. Pulsed DC power and various voltages were applied to the Ti alloy substrate. Citric acid, ethylene diamine, and ammonium phosphate were also dissolved as electrolytes followed by the dispersion of hydroxyapatite nanoparticles into those prepared electrolytes. The effects of the composition and applied voltage on the bonding strength, bioactivity, cell attachment and cytotoxicity were investigated. It was observed that the simultaneously coated TiO2 and hydroxyapatite samples showed improved bioactivity, cell attachment and viability, while maintaining the bonding strength between the coated film and substrate. Crown

Original languageEnglish
Pages (from-to)7065-7070
Number of pages6
JournalThin Solid Films
Volume519
Issue number20
DOIs
Publication statusPublished - 2011 Aug 1

Fingerprint

Durapatite
Bioactivity
Hydroxyapatite
arcs
Oxidation
Electrolytes
oxidation
attachment
Substrates
electrolytes
ammonium phosphates
Diamines
citric acid
Citric acid
Electric potential
electric potential
ethylenediamine
Cytotoxicity
cells
viability

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Hong, Min Ho ; Lee, Dong Hyun ; Kim, Kwang Mahn ; Lee, Yong Keun. / Study on bioactivity and bonding strength between Ti alloy substrate and TiO2 film by micro-arc oxidation. In: Thin Solid Films. 2011 ; Vol. 519, No. 20. pp. 7065-7070.
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Study on bioactivity and bonding strength between Ti alloy substrate and TiO2 film by micro-arc oxidation. / Hong, Min Ho; Lee, Dong Hyun; Kim, Kwang Mahn; Lee, Yong Keun.

In: Thin Solid Films, Vol. 519, No. 20, 01.08.2011, p. 7065-7070.

Research output: Contribution to journalArticle

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