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Bioactive titanate nanomesh layer on the Ti-based bulk metallic glass by hydrothermal–electrochemical technique

✍ Scribed by Naota Sugiyama; HaiYan Xu; Takamasa Onoki; Yasuto Hoshikawa; Tomoaki Watanabe; Nobuhiro Matsushita; Xinmin Wang; FengXiang Qin; Mikio Fukuhara; Masahiro Tsukamoto; Nobuyuki Abe; Yuichi Komizo; Akihisa Inoue; Masahiro Yoshimura


Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
730 KB
Volume
5
Category
Article
ISSN
1742-7061

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✦ Synopsis


Titanate nanomesh layers were fabricated on Ti-based bulk metallic glass (BMG) to induce bioactivity in the form of apatite-forming ability. Titanate nanomesh layers were prepared by hydrothermal-electrochemical treatment at 90 °C for 2 h, with an aqueous solution of NaOH as an electrolyte. A constant electric current of 0.5 mA cm À2 was applied between the BMG substrate and a Pt electrode acting as the anode and cathode, respectively. A nanomesh layer, consisting of nanowires ($20 nm in diameter) formed on the BMG. An immersion test in simulated body fluid for 12 days revealed that the titanate nanomesh layer on the BMG promoted the growth of bone-like hydroxyapatite.