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Energy Gap Reduction in DNA by Complexation with Metal Ions

Authors

  • Errez Shapir,

    1. Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel
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  • Giorgia Brancolini,

    1. S3 Center, CNR Nanoscience Institute (CNR-NANO-S3), Via Campi 213/A, 41125 Modena, Italy
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  • Tatiana Molotsky,

    1. Department of Biochemistry, George S. Wise Faculty of Life Sciences and Center for Nanotechnology, Tel Aviv University, Ramat Aviv, 69978 Israel
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  • Alexander B. Kotlyar,

    Corresponding author
    1. Department of Biochemistry, George S. Wise Faculty of Life Sciences and Center for Nanotechnology, Tel Aviv University, Ramat Aviv, 69978 Israel
    • Department of Biochemistry, George S. Wise Faculty of Life Sciences and Center for Nanotechnology, Tel Aviv University, Ramat Aviv, 69978 Israel
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  • Rosa Di Felice,

    Corresponding author
    1. S3 Center, CNR Nanoscience Institute (CNR-NANO-S3), Via Campi 213/A, 41125 Modena, Italy
    • S3 Center, CNR Nanoscience Institute (CNR-NANO-S3), Via Campi 213/A, 41125 Modena, Italy
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  • Danny Porath

    Corresponding author
    1. Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel
    • Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel.
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Abstract

Samples of metalized DNA (M-DNA) are produced. The electrical characteristics are measured and the electronic structure is simulated. Electrical currents are mediated by hybrid electronic states that arise from the interaction between the metal ions and the bases. The emerging picture is that of axial charge transfer mediated by the metal ions.

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