菜单
  
    Native oxide surfaces of stainless steel 316L and Nitinol alloys and their constituent metal oxides, namely nickel,chromium, molybdenum, manganese, iron, and titanium, were modified with long chain organic acids to better understand organic film formation. The adhesion and stability of films of octadecylphosphonic acid, octadecylhy-droxamic acid, octadecylcarboxylic acid, and octadecylsulfonic acid on these substrates were examined in this study.The films formed on these surfaces were analyzed by diffuse reflectance infrared Fourier transform spectroscopy,contact angle goniometry, atomic forcemicroscopy, andmatrix-assisted laser desorption ionizationmass spectrometry.The effect of the acidity of the organic moiety and substrate composition on the film characteristics and stability is discussed. Interestingly, on the alloy surfaces, the presence of less reactive metal sites does not inhibit film formation.Introduction
    Self-assembled monolayers (SAMs) of thiols on gold andsilanes on silicon have been model systems for numerous applica- 9837
    tions, including adhesion,
    1
    corrosion inhibition,
    2
    biomaterials,
    3,4
    biosensors,
    5
    wettability,
    6
    click chemistry,
    7
    and organic electronics.
    8
    The structure and conformation of thin films of thiols on gold are
    based on the strong interaction between sulfur and gold. These SAMs
    present functional tail groups in a consistent manner, allowing the
    films to be used in a variety of applications.
    9-12
    While forming SAMs
    onmetals and alloys relevant to a particular biomedical or industrial
    application represents a more straightforward approach to funct-
    ionalizing these materials, the chemistry of these surfaces has not
    been as well-studied, inmost cases, and is therefore not predictable.
    Modification of metal oxide surfaces by organic monolayer
    formation has been studied since Nuzzo and Allara’s seminal
    work in the 1980s.
    13
    Since then, many metal oxides such as
    *Corresponding author. E-mail: gawalte@duq.edu.
    (1) Rozsnyai, L. F.; Wrighton, M. S. Chem. Mater. 1996, 8(2), 309.
    (2) Nozawa, K.; Nishihara, H.; Aramaki, K. Corros. Sci. 1997, 39(9), 1625–
    1639.
    (3) Kovaric, B. C.; Kokona, B.; Schwab, A.D.; Twomey,M. A.; de Paula, J. C.;
    Fairman, R. J. Am. Chem. Soc. 2006, 128(13), 4166–4167.
    (4) Wang, D. A.; Feng, L. X.; Ji, J.; Sun, Y. H.; Zheng, X. X.; Elisseeff, J. H.
    J. Biomed. Mater. Res., Part A 2003, 65A(4), 498–510.
    (5) Svedhem, S.; Hollander, C. A.; Shi, J.; Konradsson, P.; Liedberg, B.;
    Svensson, S. C. T. J. Org. Chem. 2001, 66(13), 4494–4503.
    (6) Jiang, Y. G.; Wang, Z. Q.; Yu, X.; Shi, F.; Xu, H. P.; Zhang, X. Langmuir
    2005, 21(5), 1986–1990.
    (7) Lummerstorfer, T.; Hoffmann, H. J. Phys. Chem. B 2004, 108(13), 3963–
    3966.
    (8) Park, B. S.; Heo, S. J.; Kim, C. S.; Oh, J.-E.; Kim, J.-M.; Lee, G.; Park,
    W.H.;Chung, C.-P.;Min, B.-M. J. Biomed.Mater. Res., Part A 2005, 74A(4), 640–
    651.
    (9) Cox, J. D.; Curry, M. S.; Skirboll, S. K.; Gourley, P. L.; Sasaki, D. Y.
    Biomaterials 2002, 23(3), 929–935.
    (10) Fan, F. R. F.; Yao, Y. X.; Cai, L. T.; Cheng, L.; Tour, J. M.; Bard, A. J.
    J. Am. Chem. Soc. 2004, 126(12), 4035–4042.
    (11) Nitahara, S.; Akiyama, T.; Inoue, S.; Yamada, S. J. Phys. Chem. B 2005,
    109(9), 3944–3948.
    (12) Collman, J. P.; Devaraj, N. K.; Chidsey, C. E. D. Langmuir 2004, 20(4),
    1051–1053.
    (13) Allara, D. L.; Nuzzo, R. G. Langmuir 1985, 1,45–52.
    (14) Tao, Y. T. J. Am. Chem. Soc. 1993, 115(10), 4350–4358.
    (15) Tao, Y. T.; Hietpas, G. D.; Allara, D. L. J. Am. Chem. Soc. 1996, 118(28),
    6724–6735.
    (16) Folkers, J. P.; Gorman, C. B.; Laibinis, P. E.; Buchholz, S.; Whitesides,
    G. M.; Nuzzo, R. G. Langmuir 1995, 11(3), 813–824.aluminum,
  1. 上一篇:模具在工业生产中的地位英文文献和中文翻译
  2. 下一篇:抽芯机构在注射模设计中的应用英文文献和中文翻译
  1. 搅拌和搅拌反应釜英文文献和中文翻译

  2. 木质填料聚丙烯复合材料...

  3. 材料选择英文文献和中文翻译

  4. 变形地基上的土工合成材...

  5. 三维编织复合材料力学性...

  6. 节能墙体材料数据库和数...

  7. 氧化锌纳米材料的合成英文文献和中文翻译

  8. 杂拟谷盗体内共生菌沃尔...

  9. 大众媒体对公共政策制定的影响

  10. 当代大学生慈善意识研究+文献综述

  11. 河岸冲刷和泥沙淤积的监测国内外研究现状

  12. 十二层带中心支撑钢结构...

  13. 中考体育项目与体育教学合理结合的研究

  14. java+mysql车辆管理系统的设计+源代码

  15. 乳业同业并购式全产业链...

  16. 酸性水汽提装置总汽提塔设计+CAD图纸

  17. 电站锅炉暖风器设计任务书

  

About

751论文网手机版...

主页:http://www.751com.cn

关闭返回