Communication

Energy Gap Reduction in DNA by Complexation with Metal Ions

  1. Errez Shapir1,
  2. Giorgia Brancolini2,
  3. Tatiana Molotsky3,
  4. Alexander B. Kotlyar3,*,
  5. Rosa Di Felice2,*,
  6. Danny Porath1,*

Article first published online: 12 AUG 2011

DOI: 10.1002/adma.201101100

Issue

Advanced Materials

Advanced Materials

Volume 23, Issue 37, pages 4290–4294, October 4, 2011

Additional Information

How to Cite

Shapir, E., Brancolini, G., Molotsky, T., Kotlyar, A. B., Di Felice, R. and Porath, D. (2011), Energy Gap Reduction in DNA by Complexation with Metal Ions. Adv. Mater., 23: 4290–4294. doi: 10.1002/adma.201101100

Author Information

  1. 1

    Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel

  2. 2

    S3 Center, CNR Nanoscience Institute (CNR-NANO-S3), Via Campi 213/A, 41125 Modena, Italy

  3. 3

    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

Publication History

  1. Issue published online: 28 SEP 2011
  2. Article first published online: 12 AUG 2011
  3. Manuscript Revised: 29 MAY 2011
  4. Manuscript Received: 24 MAR 2011

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Keywords:

  • DNA;
  • metalization;
  • scanning tunneling spectroscopy;
  • density functional theory;
  • enzymatic synthesis
Thumbnail image of graphical 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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