High-Performance Sensing of DNA Hybridization on Surface of Self-organized MWCNT-Arrays Decorated by Organometallic Complexes

In this paper a high-sensitive capacitive DNA-nanosensor based on spin-dependent polarization effects has been proposed. We demonstrate that the polarization effects of charge-carriers transport in multi-walled carbon nanotubes (MWCNT) decorated by organometallic complexes lead to the surface-resonance-enhanced signals of DNA-hybridization sensor. According to obtained experimental data, such DNA-sensor allows to discover the forming duplex with DNA targets, including single-base-pair-mismatched DNA.