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

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• 作者：Manuel Rei Vilar ; Ana M. Botelho do Rego ; Ana M. Ferraria ; Yvette Jugnet ; Claude Noguè ; s ; Dana Peled ; Ron Naaman
• 刊名：Journal of Physical Chemistry B
• 出版年：2008
• 出版时间：June 12, 2008
• 年：2008
• 卷：112
• 期：23
• 页码：6957 - 6964
• 全文大小：1295K
• 年卷期：v.112,no.23(June 12, 2008)
• ISSN：1520-5207

文摘

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.