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Direct electrical conduction in DNA molecules confined in nanoporous membrane

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1 Author(s)
Mandal, S.K. ; Department of Physics, Visva-Bharati, Santiniketan 731235, India

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Temperature dependent (80–300 K) dc electrical conductivity dc) of deoxyribonucleic acid (DNA) molecules confined in nanopores of polycarbonate membrane is reported here. The DNA confined in such nanopores exhibited metallic resistivity with temperature up to a critical temperature beyond which it became temperature independent. The observed experimental data are explained considering modified electron-phonon interactions in reduced dimensions for the confined DNA molecules.

Published in:

Applied Physics Letters  (Volume:89 ,  Issue: 19 )