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arXiv · 1502.02836

Enhancement of Raman Light Scattering in Dye-Labeled Rat Glioma Cells by Langmuir-Blodgett CNT-Bundles Arranged on Metal-Containing Conducting Polymer Film

A. S. Egorov·V. P. Egorova·H. V. Grushevskaya·V. I. Krot·N. G. Krylova·I. V. Lipnevich·T. I. Orekhovskaya·B. G. Shulitsky
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Abstract

We have fabricated layered nanocomposite consisting of a nanoporous anodic alumina sublayer (AOA), an ultrathin metal-containing polymer Langmuir-Blodgett (LB) film coating AOA, and multi-walled carbon nanotube (MCNT) - bundles which are arranged on the LB-film. MCNTs were preliminarily chemically modified by carboxyl groups and functionalized by stearic acid. We have experimentally observed an enhancement of Raman light scattering on surface plasmons in the LB-monolayers. This enhancement is due to charge and energy transfer. We demonstrate that propidium iodide (PI) fluorescence is quenched by the MCNT-bundles. A method of two-dimensional system imaging based on the MCNT-enhanced Raman spectroscopy has been proposed. This method has been applied to visualize focal adhesion sites on membranes of living PI-labeled rat glioma cells.

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A. S. Egorov, V. P. Egorova, H. V. Grushevskaya, V. I. Krot, N. G. Krylova, I. V. Lipnevich, T. I. Orekhovskaya, B. G. Shulitsky. 2015-02-10. Enhancement of Raman Light Scattering in Dye-Labeled Rat Glioma Cells by Langmuir-Blodgett CNT-Bundles Arranged on Metal-Containing Conducting Polymer Film. https://arxiv.org/abs/1502.02836

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