XPS study on potential suppression factors of suppressing in vitro

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• 作者：Tetsuya Shozui ; Kanji Tsuru ; Satoshi Hayakawa ; Yuki Shirosaki ; Akiyoshi Osaka
• 关键词：Titania film ; Inhibitor ; X-ray photoelectron spectroscopy ; Sol– ; gel ; Apatite ; Substrate
• 刊名：Surface and Coatings Technology
• 出版年：2009
• 出版时间：30 May 2009
• 年：2009
• 卷：203
• 期：16
• 页码：2181-2185
• 全文大小：641 K

文摘

Multilayer anatase films were coated by sol–gel technology on various substrates such as stainless-steel, alumina, and glass, respectively. Their in vitro apatite-forming ability was examined by immersion in Kokubo's simulated body fluid (SBF; pH 7.4, 36.5 °C). Although on anatase layer on alkali-free glass apatite was deposited within 7 d, no apatite was found on anatase deposited onto stainless steel, alumina or glass substrates within 7 d to prove they were bioinert. X-ray photoelectron spectroscopy was able to detect chromium, aluminum, or sodium on the surface of the anatase films. This indicated that these ions possibly inhibited the in vitro apatite-forming ability.