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

被引：2

作者：

Hoshikawa, Yasuto ^{[1
]}

Yasuda, Eiichi ^{[1
]}

Onoki, Takamasa ^{[1
]}

Aka, Masaru ^{[2
]}

Tanabe, Yasuhiro ^{[3
]}

机构：

[1] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, R3-21,4258 Nagatsuta, Yokohama, Kanagawa 2268503, Japan

[2] Tokyo Med & Dental Univ, Inst Biomat & Bioengn, Chiyoda Ku, Tokyo 1010062, Japan

[3] Nagoya Univ, Grad Sch Engn, Dept Chem Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

来源：

BIOCERAMICS, VOL 20, PTS 1 AND 2 | 2008年 / 361-363卷

关键词：

methyltriethoxysilane; bioactivity; coating; sol-gel; organic-inorganic hybrid; titanium;

D O I：

10.4028/www.scientific.net/KEM.361-363.693

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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.

引用

页码：693 / +

页数：2

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