SURFACE-PLASMON STUDIES OF SPECIFIC RECOGNITION REACTIONS AT SELF-ASSEMBLED MONOLAYERS ON GOLD

被引：39
|
作者：
SCHMITT, FJ [1 ]
HAUSSLING, L [1 ]
RINGSDORF, H [1 ]
KNOLL, W [1 ]
机构：
[1] UNIV MAINZ,INST ORGAN CHEM,W-6500 MAINZ,GERMANY
来源：
THIN SOLID FILMS | 1992年 / 210卷 / 1-2期
关键词：
D O I：
10.1016/0040-6090(92)90412-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Specific recognition reactions of proteins at functionalized interfaces were observed with plasmon surface polariton (PSP) spectroscopy. This optical method offers a vertical resolution of about 0.2 nm in aqueous media. Different types of receptor surfaces were prepared, either by self-assembly of biotinylated alkane thiols or by specific adsorption of streptavidin monolayers. The corresponding substrates were streptavidin and a biotinylated monoclonal antibody. Their binding properties are inversely related to the packing density of the receptors. A good accessibility is only given in the case of a "diluted" presentation of the receptors at the interface. Both binding site and diffusion limited adsorption have been observed.
引用
收藏
页码：815 / 817
页数：3
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