Surface enhanced FTIR spectroscopy on membranes

被引：25

作者：

Kuhne, C ^{[1
]}

Steiner, G ^{[1
]}

Fischer, WB ^{[1
]}

Salzer, R ^{[1
]}

机构：

[1] TU Dresden, Inst Analyt Chem, D-01062 Dresden, Germany

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1998年 / 360卷 / 7-8期

关键词：

D O I：

10.1007/s002160050799

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The infrared absorption of molecules in the vicinity of small metal clusters is enhanced due to an electric field around the clusters. This phenomenon is known as surface enhanced IR absorption (SEIRA). The potential of SEIRA consists in the investigation of thin layers and of membranes. SEIRA was used to detect small and specific changes in the structure of biomembranes applying two configurations: underlayer and overlayer. In the underlayer configuraiton, IR transparent Ge crystals were coated with Ag clusters before vesicles were adsorbed. In the overlayer configuration, the vesicles were first absorbed on neat Ge crystals before a layer of Ag clusters was condensed on top. An intensity increase in the SEIRA spectra was observed for both configurations compared to FTIR spectra without Ag clusters.

引用

页码：750 / 754

页数：5

共 19 条

[1] In situ investigations of polymer self-assembly solution adsorption by surface plasmon spectroscopy [J].