Self-organizing DNA/carbon nanotube molecular films

We have studied the effects of the electronic structure self-formation and charge transfer for the planar system of layers from DNA unwrapped double h elix, DNA double helix, DNA unwrapped double helix with carbon nanotubes (C NT) in the separated sections with common bounds on the silicon substrate-D NA chip on Si. The electronic structure of (DNA/CNT) layer are formed as a result of changes of electron levels in adenine, cytozine, guanine and thym ine which were directly revealed by UV, IR spectroscopy. The transport prop erties of such systems are determined by the charge transfer through the ba rriers in the DNA double helix/unwrapped double helix and in the DNA unwrap ped double helix/CNT hetero structures that were proved by tunneling spectr oscopy investigations. (C) 2001 Elsevier Science B.V. All rights reserved.