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Journal Article

Titanium-silicon oxide film structures for polarization-modulated infrared reflection absorption spectroscopy

MPS-Authors
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Dunlop,  Iain E.
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;

/persons/resource/persons76135

Spatz,  Joachim P.
Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society;
Biophysical Chemistry, Institute of Physical Chemistry, University of Heidelberg, 69120 Heidelberg, Germany;

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http://www.sciencedirect.com/science/article/pii/S004060900801287X/pdfft?md5=2a2575f4682f6dc4c54bfd5134a1f588&pid=1-s2.0-S004060900801287X-main.pdf
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http://dx.doi.org/10.1016/j.tsf.2008.10.058
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Citation

Dunlop, I. E., Zorn, S., Richter, G., Srot, V., Kelsch, M., van Aken, P. A., et al. (2009). Titanium-silicon oxide film structures for polarization-modulated infrared reflection absorption spectroscopy. Thin Solid Films, 517(6), 2048-2054. doi:10.1016/j.tsf.2008.10.058.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-3D50-A
Abstract
We present a titanium-silicon oxide film structure that permits polarization modulated infrared reflection absorption spectroscopy on silicon oxide surfaces. The structure consists of a ∼ 6 nm sputtered silicon oxide film on a ∼ 200 nm sputtered titanium film. Characterization using conventional and scanning transmission electron microscopy, electron energy loss spectroscopy, X-ray photoelectron spectroscopy and X-ray reflectometry is presented. We demonstrate the use of this structure to investigate a selectively protein-resistant self-assembled monolayer (SAM) consisting of silane-anchored, biotin-terminated poly(ethylene glycol) (PEG). PEG-associated IR bands were observed. Measurements of protein-characteristic band intensities showed that this SAM adsorbed streptavidin whereas it repelled bovine serum albumin, as had been expected from its structure.