Chemical analyses of hydroxyapatite formation on SAM surfaces modified with COOH, NH_2, CH_3, and OH functions

Dental Materials Journal 29 巻 4 号 438-445 頁 2010-08-07 発行
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タイトル ( eng )
Chemical analyses of hydroxyapatite formation on SAM surfaces modified with COOH, NH_2, CH_3, and OH functions
作成者
Akamatsu Mai
Fujii Eri
Poolthong Suchit
収録物名
Dental Materials Journal
29
4
開始ページ 438
終了ページ 445
抄録
Hydroxyapatite formation was examined at the surface of self-assembled monolayers (SAMs) modified with four functional groups, -COOH, -NH2, and -OH. For COOH-SAM and NH2-SAM, scanning electron spectroscopic observation showed that flake-like sheet crystals covered the whole wafer and small broccoli-like crystals were observed occasionally on the flake-like crystal base layer. For CH3-SAM and OH-SAM, no flake-like sheet crystals were observed; broccoli-like crystals were observed in a dispersed manner for CH3-SAM, but in localized spots for OH-SAM. X-ray diffraction patterns showed a strong apatite pattern oriented toward the c-axis direction for COOH-SAM. ESCA analysis revealed distinct Ca, P, O peaks for COOH-, NH2-, CH3-, and OH-SAM. Surface plasmon resonance (SPR) analysis indicated that during the supply of supersaturated calcium phosphate solution, the deposition of precipitates increased monotonically with time for COOH-SAM, increased slightly for NH2-SAM, but little increase in deposition was detected for CH3-SAM and OH-SAM.
著者キーワード
Hydroxyapatite formation
SAM surfaces
Surface plasmon resonance
NDC分類
医学 [ 490 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
日本歯科理工学会
発行日 2010-08-07
権利情報
Copyright (c) 2010 The Japanese Society for Dental Materials and Devices
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0287-4547
[DOI] 10.4012/dmj.2010-017
[NCID] AA10443149
[DOI] http://dx.doi.org/10.4012/dmj.2010-017