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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

Tuesday, 26 August 2003
(at 11:15 in room Phy 4.1.13)
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Towards DNA-Based Nanoelectronics?

Danny Porath

Physical Chemistry Department
The Hebrew University of Jerusalem

DNA was considered as one of the most attractive candidates for future molecular electronics due to the high density of its components, its accurate synthesis and its double-strand recognition properties that suggest self-assembly. Although others and we have shown by direct electrical transport measurements that some DNA sequences can indeed support electrical current, it seems that DNA itself is not a good molecular wire. Therefore, we develop novel modified DNA-based derivatives that may transport current in a more efficient manner in a collaborative effort with the biochemistry and organic chemistry groups of Kotlyar and Yitzchaik. In particular, the electrical transport mechanism for charge carriers through DNA and its modifications, the limits of their ability to support current and the sensitivity of the electrical transport to environmental conditions and optical excitations, are the focus of our research using electrical transport measurements and scanning probe microscopy. I will present our experiments and plans for addressing the above issues towards the development of DNA-based Nanoelectronics.
For reference see: Nature 403, 635 (2000).

Invited by G. Cuniberti (MC seminar)

last modified: 2021.05.05 Wed
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