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



Thursday, 10 February 2011
(at 16:00 in room seminar room Werkstofflaborgebaeude, Budapester Strasse 27)
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Interaction of electrons with DNA: from damage to spintronics

Ron Naaman

Department of Chemical Physics
Weizmann Institute, Rehovot
  Israel  






We investigated the interaction of electrons possessing well-defined energy, with monolayers of single- and double-stranded DNA oligomers adsorbed on a gold surface. By methodically varying the bases in the oligomers, the effect of the base sequence on the interaction with electrons could be determined as well as the difference between single and double strands. Furthermore, the binding energy of the captured electrons and their location could also be determined. We observed cooperative effects of the bases on electron capturing. Namely the capturing probability of electrons is not simply the sum of the capturing probabilities of each base. Spin selective electron capturing has been found that suggest new role of electrons' spin in the interaction of electrons with biomolecules and open the possibility to utilize DNA as an efficient spin filter.

Brief Bio:

Ron Naaman is a full Professor in the Department of Chemical Physics at the Weizmann Institute of Science. A Fellow of the American Physical Society. Ron Naaman was a Postdoctoral Fellow at Stanford University in California before moving on to becoming a lecturer and research associate at Harvard. His research and lecturing activities then took him to Weizmann as well as visiting positions at the Joint Institute for Laboratory Astrophysics (JILA) at Boulder Colorado, the University of Pittsburg, and University of California Santa Barbara. Ron Naaman main research interests are in electronic properties of nano devices and interfaces.

Invited by G. Cuniberti

Within the Max Bergmann Lecture

last modified: 2018.10.24 Mi
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