Highly oriented, self-assembled alkanephosphate monolayers on tantalum(V) oxide surfaces

被引：85
作者：
Brovelli, D
Hähner, G
Ruiz, L
Hofer, R
Kraus, G
Waldner, A
Schlösser, J
Oroszlan, P
Ehrat, M
Spencer, ND [1 ]
机构：
[1] ETH Zurich, Dept Mat, Surface Sci & Technol Lab, CH-8092 Zurich, Switzerland
[2] Novartis Pharma AG, CH-4002 Basel, Switzerland
来源：
LANGMUIR | 1999年 / 15卷 / 13期
关键词：
D O I：
10.1021/la981758n
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Octadecyl phosphoric acid ester has been found to produce oriented, well-ordered monolayers on a flat tantalum(V) oxide surface, via self-assembly from a heptane/propan-2-ol solution. By means of contact angle, optical waveguide lightmode spectroscopy (OWLS), near-edge X-ray absorption fine structure spectroscopy (NEXAFS), and X-ray photoelectron spectroscopy (XPS) measurements, it has been shown that these layers closely resemble those formed by the corresponding thiol-gold system, with respect to packing density, inclination, and order. The system shows promise as an approach to functionalizing oxide surfaces with well-ordered organic monolayers, with potential applications in the fields of biochemical analysis and sensors.
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收藏
页码：4324 / 4327
页数：4
相关论文
共 34 条
[1]   Stabilization of self-assembled monolayers of carboxylic acids on native oxides of metals [J].
Aronoff, YG ;
Chen, B ;
Lu, G ;
Seto, C ;
Schwartz, J ;
Bernasek, S .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (02) :259-262
[2]   FORMATION OF MONOLAYER FILMS BY THE SPONTANEOUS ASSEMBLY OF ORGANIC THIOLS FROM SOLUTION ONTO GOLD [J].
BAIN, CD ;
TROUGHTON, EB ;
TAO, YT ;
EVALL, J ;
WHITESIDES, GM ;
NUZZO, RG .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (01) :321-335
[3]   Self-assembled monolayers: Recent developments and applications [J].
Bishop, AR ;
Nuzzo, RG .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 1996, 1 (01) :127-136
[4]   Self assembled molecular monolayers on oxidized inhomogeneous aluminum surfaces [J].
Bram, C ;
Jung, C ;
Stratmann, M .
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1997, 358 (1-2) :108-111
[5]   CONTACT ANGLES [J].
CASSIE, ABD .
DISCUSSIONS OF THE FARADAY SOCIETY, 1948, 3 :11-16
[6]   Novel bioaffinity sensors for trace analysis based on luminescence excitation by planar waveguides [J].
Duveneck, GL ;
Pawlak, M ;
Neuschafer, D ;
Bar, E ;
Budach, W ;
Pieles, U .
SENSORS AND ACTUATORS B-CHEMICAL, 1997, 38 (1-3) :88-95
[7]   Orientation and order in microcontact-printed, self-assembled monolayers of alkanethiols on gold investigated with near edge x-ray absorption fine structure spectroscopy [J].
Fischer, D ;
Marti, A ;
Hahner, G .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1997, 15 (04) :2173-2180
[8]   SELF-ASSEMBLED MONOLAYERS OF LONG-CHAIN HYDROXAMIC ACIDS ON THE NATIVE OXIDES OF METALS [J].
FOLKERS, JP ;
GORMAN, CB ;
LAIBINIS, PE ;
BUCHHOLZ, S ;
WHITESIDES, GM ;
NUZZO, RG .
LANGMUIR, 1995, 11 (03) :813-824
[9]   Self-assembled monolayers of alkylphosphonic acids on metal oxides [J].
Gao, W ;
Dickinson, L ;
Grozinger, C ;
Morin, FG ;
Reven, L .
LANGMUIR, 1996, 12 (26) :6429-6435
[10]  
HAHNER G, 1993, LANGMUIR, V9, P1955
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