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Interaction of Self-Assembled Monolayers of DNA with Electrons: HREELS and XPS Studies

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posted on 2008-06-12, 00:00 authored by Manuel Rei Vilar, Ana M. Botelho do Rego, Ana M. Ferraria, Yvette Jugnet, Claude Noguès, Dana Peled, Ron Naaman
We present results from high-resolution electron energy loss spectroscopy (HREELS) and XPS studies of self-assembled monolayers of DNA. The monolayers are well-organized and display sharp vibrational peaks in the HREEL spectra. The electrons interact mainly with the backbone of the DNA. The XPS results indicate that, in most of the samples studied, the phosphates on the DNA are not charged.

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