Nucleic semiconductivity

Bumel ME, Eley DD, Subramanyan V (1969) Semiconduction in nucleic acid and its components. Ann NY Acad Sci 158 191-209... 

Eley D.D., Spivey D.I., Semiconductivity of Organic Substances. Part. 9 - Nucleic Acid in the Dry State,Trans. Faraday Soc., 1962,58,411-415. 

The problem of semiconductive properties is not peculiar to proteins but concerns also other types of biological macromolecules, in particular the nucleic acids. Semiconductivity, with an energy gap for dry DNA of about 2.4 eV has been observed by a number of authors . It has been investigated theoretically from the standpoint of the possible existence of... 

In the absence of any experimental data in this field these quantities have been evaluated theoretically, and the application of the theory to the nucleic acids lead to a predicted value for the energy gap of the order of 4.5 eV and is greater again than the observed one. This situation suggests again that the observed semiconductivity is associated with the presence of impurities. They also lead to the prediction that the energy gap for semiconduction in DNA should decrease with increasing G-C content. 

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