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

Katja Drexler | Zendy; Julia Smirnova | Zendy; Marina Galetskaya | Zendy; S. Voss | Zendy; M. Fonin | Zendy; Johannes Boneberg | Zendy; U. Rüdiger | Zendy; P. Leǐderer | Zendy; Ulrich E. Steiner | Zendy

Open Access

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

Author(s) -

Katja Drexler,

Julia Smirnova,

Marina Galetskaya,

S. Voss,

M. Fonin,

Johannes Boneberg,

U. Rüdiger,

P. Leǐderer,

Ulrich E. Steiner

Publication year - 2009

Publication title -

langmuir

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.042

H-Index - 333

eISSN - 1520-5827

pISSN - 0743-7463

DOI - 10.1021/la901346s

Subject(s) - x ray photoelectron spectroscopy , monolayer , chemistry , surface plasmon resonance , self assembled monolayer , kinetics , photochemistry , analytical chemistry (journal) , organic chemistry , materials science , nuclear magnetic resonance , nanotechnology , nanoparticle , biochemistry , physics , quantum mechanics

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.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research