Evidence for why tri(ethylene oxide) functionalized Si-C linked monolayers on Si(111) have inferior protein antifouling properties relative to the equivalent alkanethiol monolayers assembled on gold

被引:16
作者
Böcking, T
Gal, M
Gaus, K
Gooding, JJ [1 ]
机构
[1] Univ New S Wales, Sch Chem, Sydney, NSW 2052, Australia
[2] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia
[3] Univ New S Wales, Sch Med Sci, Ctr Vasc Res, Sydney, NSW 2052, Australia
关键词
D O I
10.1071/CH05121
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
High quality methoxy-terminated monolayers containing a tri(ethylene oxide) moiety were formed on Si(111)-H surfaces in thermal hydrosilylation reactions. X-ray photoelectron spectroscopy, contact angle, and X-ray reflectivity measurements suggested that the suboptimal protein anti-fouling properties of these Si-C linked monolayers were due to a reduced lateral packing density of the chains resulting in a disordered layer with insufficient internal and external hydrophilicity.
引用
收藏
页码:660 / 663
页数:4
相关论文
共 29 条
[1]   The preparation of flat H-Si(111) surfaces in 40% NH4F revisited [J].
Allongue, P ;
de Villeneuve, CH ;
Morin, S ;
Boukherroub, R ;
Wayner, DDM .
ELECTROCHIMICA ACTA, 2000, 45 (28) :4591-4598
[2]   Structural characterization of organic multilayers on silicon(111) formed by immobilization of molecular films on functionalized Si-C linked monolayers [J].
Böcking, T ;
James, M ;
Coster, HGL ;
Chilcott, TC ;
Barrow, KD .
LANGMUIR, 2004, 20 (21) :9227-9235
[3]   Controlled functionalization and multistep chemical manipulation of covalently modified Si(111) surfaces [J].
Boukherroub, R ;
Wayner, DDM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (49) :11513-11515
[4]  
BRAUN C, 1999, PARRATT32 REFLECTIVI
[5]   Photoreactivity of unsaturated compounds with hydrogen-terminated silicon(111) [J].
Cicero, RL ;
Linford, MR ;
Chidsey, CED .
LANGMUIR, 2000, 16 (13) :5688-5695
[6]   Semicarbazide-functionalized Si(111) surfaces for the site-specific immobilization of peptides [J].
Coffinier, Y ;
Olivier, C ;
Perzyna, A ;
Grandidier, B ;
Wallart, X ;
Durand, JO ;
Melnyk, O ;
Stiévenard, D .
LANGMUIR, 2005, 21 (04) :1489-1496
[7]   Covalently attached saccharides on silicon surfaces [J].
de Smet, LCPM ;
Stork, GA ;
Hurenkamp, GHF ;
Sun, QY ;
Topal, H ;
Vronen, PJE ;
Sieval, AB ;
Wright, A ;
Visser, GM ;
Zuilhof, H ;
Sudhölter, EJR .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (46) :13916-13917
[8]   Fluorescence microscopy study of protein adsorption at modified glassy carbon surfaces [J].
Downard, AJ ;
Jackson, SL ;
Tan, ESQ .
AUSTRALIAN JOURNAL OF CHEMISTRY, 2005, 58 (04) :275-279
[9]   Molecular conformation in oligo(ethylene glycol)-terminated self-assembled monolayers on gold and silver surfaces determines their ability to resist protein adsorption [J].
Harder, P ;
Grunze, M ;
Dahint, R ;
Whitesides, GM ;
Laibinis, PE .
JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (02) :426-436
[10]   Factors that determine the protein resistance of oligoether self-assembled monolayers - Internal hydrophilicity, terminal hydrophilicity, and lateral packing density [J].
Herrwerth, S ;
Eck, W ;
Reinhardt, S ;
Grunze, M .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (31) :9359-9366