Active hydroxyl groups on surface oxide film of Ti, 316l stainless steel, and cobalt–chromium–molybdenum alloy and its effect on the immobilization of poly(ethylene glycol)

• Tanaka Yuta

  Institute of Biomaterials and Engineering, Tokyo Medical and Dental University

• Saito Haruka

  Department of Materials Science, Shibaura Institute of Technology

• Tsutsumi Yusuke

  Institute of Biomaterials and Engineering, Tokyo Medical and Dental University

• Doi Hisashi

  Institute of Biomaterials and Engineering, Tokyo Medical and Dental University

• Imai Hachiro

  Department of Materials Science, Shibaura Institute of Technology

• Hanawa Takao

  Institute of Biomaterials and Engineering, Tokyo Medical and Dental University

書誌事項

タイトル別名

• Active Hydroxyl Groups on Surface Oxide Film of Titanium, 316L Stainless Steel, and Cobalt-Chromium-Molybdenum Alloy and Its Effect on the Immobilization of Poly(Ethylene Glycol)

抄録

The concentrations of hydroxyl groups located inside and on the surface oxide films of a commercially pure titanium, cp-Ti, a type 316L austenitic stainless steel, SS, and a cobalt-chromium-molybdenum alloy, Co-Cr-Mo, were evaluated using X-ray photoelectron spectroscopy, XPS, and a zinc-complex substitution technique. As a result, the concentrations of the hydroxyl groups detected by the zinc-complex substitution technique, defined as active hydroxyl groups, were much larger than those detected by other conventional techniques. The concentration of the active hydroxyl groups on Co-Cr-Mo was significantly larger than those on cp-Ti and SS. Poly(ethylene glycol), PEG, is a biofunctional molecule that inhibits the adsorption of proteins. The immobilization of PEG to metal surfaces by electrodeposition or immersion is an important technique to biofunctionalize the metals. The amounts of the PEG layer immobilized on the metals were governed by the concentrations of the active hydroxyl groups on each surface oxide in the case of electrodeposition; it was governed by the relative permittivity of the surface oxide in the case of immersion. The estimation of active hydroxyl groups on the surface oxide film with the zinc-complex substitution technique is useful for the elucidation of reactions between metal substrates and immobilized molecules.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 49 (4), 805-811, 2008

  公益社団法人 日本金属学会

キーワード

• titanium
• poly(ethylene glycol)
• electrodeposition
• active hydroxyl groups
• X-ray photoelectron spectroscopy

詳細情報

• CRID: 1390282679227776256
• NII論文ID: 10021145891
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.mra2007317
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 9447484
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9447484
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/49/4/49_MRA2007317/_pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可