2006 | OriginalPaper | Chapter
BEHAVIOR OF CARBON NANOTUBES IN BIOLOGICAL SYSTEMS
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Our main subject is CNTs and their interaction with DNA biomolecular gel. The electronic properties and vibration modes of CNT and DNA/CNT systems were investigated by TEM and Raman spectroscopy. From the UV-VIS-NIR absorption spectra the principal electronic absorption bands have been estimated. The effect of DNA is revealed by the existence of the 2.5- 3eV and 2 eV bands and shifting of the minima at 2.96 eV, 3.05, 3.34 eV. Using these results, we assert that a system of electronic levels is self-formed at the DNA/CNT interface. The structure of the CNT/DNA blocks is reviewed.