Publikation:

X-ray Photoelectron Spectroscopy- and Surface Plasmon Resonance-Detected Photo Release of Photolabile Protecting Groups from Nucleoside Self-Assembled Monolayers on Gold Surfaces

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8844_paper_378_langmuir_drexler2009.pdf
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2009

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Smirnova, Julia
Voss, Sönke

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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-88444
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https://doi.org/10.1021/la901346s
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Langmuir. 2009, 25(18), pp. 10794-10801. Available under: doi: 10.1021/la901346s

Zusammenfassung

The formation of self-assembled monolayers (SAMs) on gold by 2-(5-iodo-2-nitrophenyl) propoxycarbonyl (I-NPPOC)-protected thymidine with an attached mercaptohexyl succinate linker and the kinetics of photochemical release of the I-NPPOC group were monitored using X-ray photoelectron spectroscopy (XPS) and surface plasmon resonance (SPR) detection. In the XPS spectra, the iodine peaks allowed for specific and accurate monitoring of the presence and loss of I-NPPOC groups on the surface. In the SPR experiment, the overall signal change on photoillumination is in accord with a theoretical estimation of the density of I-NPPOC groups in a dense monolayer. The kinetics roughly follow a biexponential time dependence with two very different time constants, corresponding to photochemical quantum yields of 0.22 and 0.0032, respectively.

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Fachgebiet (DDC)
540 Chemie

Schlagwörter

X-ray Photoelectron Spectroscopy, Surface plasmon

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ISO 690DREXLER, Katja, Julia SMIRNOVA, Marina GALETSKAYA, Sönke VOSS, Mikhail FONIN, Johannes BONEBERG, Ulrich RÜDIGER, Paul LEIDERER, Ulrich STEINER, 2009. X-ray Photoelectron Spectroscopy- and Surface Plasmon Resonance-Detected Photo Release of Photolabile Protecting Groups from Nucleoside Self-Assembled Monolayers on Gold Surfaces. In: Langmuir. 2009, 25(18), pp. 10794-10801. Available under: doi: 10.1021/la901346s
BibTex
@article{Drexler2009Photo-4932,
  year={2009},
  doi={10.1021/la901346s},
  title={X-ray Photoelectron Spectroscopy- and Surface Plasmon Resonance-Detected Photo Release of Photolabile Protecting Groups from Nucleoside Self-Assembled Monolayers on Gold Surfaces},
  number={18},
  volume={25},
  journal={Langmuir},
  pages={10794--10801},
  author={Drexler, Katja and Smirnova, Julia and Galetskaya, Marina and Voss, Sönke and Fonin, Mikhail and Boneberg, Johannes and Rüdiger, Ulrich and Leiderer, Paul and Steiner, Ulrich}
}
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    <dcterms:abstract xml:lang="eng">The formation of self-assembled monolayers (SAMs) on gold by 2-(5-iodo-2-nitrophenyl) propoxycarbonyl (I-NPPOC)-protected thymidine with an attached mercaptohexyl succinate linker and the kinetics of photochemical release of the I-NPPOC group were monitored using X-ray photoelectron spectroscopy (XPS) and surface plasmon resonance (SPR) detection. In the XPS spectra, the iodine peaks allowed for specific and accurate monitoring of the presence and loss of I-NPPOC groups on the surface. In the SPR experiment, the overall signal change on photoillumination is in accord with a theoretical estimation of the density of I-NPPOC groups in a dense monolayer. The kinetics roughly follow a biexponential time dependence with two very different time constants, corresponding to photochemical quantum yields of 0.22 and 0.0032, respectively.</dcterms:abstract>
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