Sol-gel derived methylsiloxane-Ca-Nb-Ta coating on titanium surface by double layered structure

Yasuto Hoshikawa; Eiichi Yasuda; Takamasa Onoki; Masaru Akao; Yasuhiro Tanabe

Sol-gel derived methylsiloxane-Ca-Nb-Ta coating on titanium surface by double layered structure

Yasuto Hoshikawa, Eiichi Yasuda, Takamasa Onoki, Masaru Akao, Yasuhiro Tanabe

Research output: Contribution to journal › Article › peer-review

Abstract

Titanium (Ti) and its alloy have sufficient mechanical properties to be utilized as artificial hip joints and article teeth. However, they have no bioactivity. In this work, we prepared bioactive coatings on Ti by sol-gel techniques. The coatings had a double layered structure. Underlying layer was methylsiloxane (MS) consisted of methyltriethoxysilane (MTES). Top layer was MS-Ca-Nb-Ta hybrid composed of MTES, calcium nitrate tetrahydrate, pentaethoxy-niobium and pentaethoxy-tantalum. The coating exhibited formation of bone-like apatite in SBF immersion test. Adhesive strength of the coating was found to be 1.8 MPa.

Original language	English
Pages (from-to)	693-696
Number of pages	4
Journal	Key Engineering Materials
Volume	361-363 I
Publication status	Published - 2008 Jan 1

Keywords

Bioactivity
Coating
Methyltriethoxysilane
Organic-inorganic hybrid
Sol-gel
Titanium

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Cite this

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title = "Sol-gel derived methylsiloxane-Ca-Nb-Ta coating on titanium surface by double layered structure",

abstract = "Titanium (Ti) and its alloy have sufficient mechanical properties to be utilized as artificial hip joints and article teeth. However, they have no bioactivity. In this work, we prepared bioactive coatings on Ti by sol-gel techniques. The coatings had a double layered structure. Underlying layer was methylsiloxane (MS) consisted of methyltriethoxysilane (MTES). Top layer was MS-Ca-Nb-Ta hybrid composed of MTES, calcium nitrate tetrahydrate, pentaethoxy-niobium and pentaethoxy-tantalum. The coating exhibited formation of bone-like apatite in SBF immersion test. Adhesive strength of the coating was found to be 1.8 MPa.",

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T1 - Sol-gel derived methylsiloxane-Ca-Nb-Ta coating on titanium surface by double layered structure

AU - Hoshikawa, Yasuto

AU - Yasuda, Eiichi

AU - Onoki, Takamasa

AU - Akao, Masaru

AU - Tanabe, Yasuhiro

PY - 2008/1/1

Y1 - 2008/1/1

N2 - Titanium (Ti) and its alloy have sufficient mechanical properties to be utilized as artificial hip joints and article teeth. However, they have no bioactivity. In this work, we prepared bioactive coatings on Ti by sol-gel techniques. The coatings had a double layered structure. Underlying layer was methylsiloxane (MS) consisted of methyltriethoxysilane (MTES). Top layer was MS-Ca-Nb-Ta hybrid composed of MTES, calcium nitrate tetrahydrate, pentaethoxy-niobium and pentaethoxy-tantalum. The coating exhibited formation of bone-like apatite in SBF immersion test. Adhesive strength of the coating was found to be 1.8 MPa.

AB - Titanium (Ti) and its alloy have sufficient mechanical properties to be utilized as artificial hip joints and article teeth. However, they have no bioactivity. In this work, we prepared bioactive coatings on Ti by sol-gel techniques. The coatings had a double layered structure. Underlying layer was methylsiloxane (MS) consisted of methyltriethoxysilane (MTES). Top layer was MS-Ca-Nb-Ta hybrid composed of MTES, calcium nitrate tetrahydrate, pentaethoxy-niobium and pentaethoxy-tantalum. The coating exhibited formation of bone-like apatite in SBF immersion test. Adhesive strength of the coating was found to be 1.8 MPa.

KW - Bioactivity

KW - Coating

KW - Methyltriethoxysilane

KW - Organic-inorganic hybrid

KW - Sol-gel

KW - Titanium

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Sol-gel derived methylsiloxane-Ca-Nb-Ta coating on titanium surface by double layered structure

Abstract

Keywords

ASJC Scopus subject areas

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