A fully electronic sensor for the measurement of cDNA hybridization kinetics.

@article{Bandiera2007AFE,
  title={A fully electronic sensor for the measurement of cDNA hybridization kinetics.},
  author={L Thim S. Bandiera and G. Cellere and Stefano Cagnin and Andrea De Toni and Enrico Zanoni and Gerardo Lanfranchi and Leandro Lorenzelli},
  journal={Biosensors & bioelectronics},
  year={2007},
  volume={22 9-10},
  pages={2108-14}
}
Ion sensitive field effect transistors (ISFET) are candidates for a new generation of fully electrical DNA sensors. To this purpose, we have modified ISFET sensors by adsorbing on their Si(3)N(4) surface poly-L-lysine and single (as well as double) stranded DNA. Once coupled to an accurate model of the oppositely charged layers adsorbed on the surface, the proposed sensor allows quantitatively evaluating the adsorbed molecules densities, as well as estimating DNA hybridization kinetics.