The effect of material composition of 3-dimensional graphene oxide and self-doped polyaniline nanocomposites on DNA analytical sensitivity

- Various GNO/SPAN nanocomposites were directly prepared via ultrasonication.
- Intercalated SPAN can bring the better isolation and dispersion of GNO.
- Mass ratio and ultrasonic time have an influence on the formations of GNO/SPAN.
- Various materials cause various surface density and hybridization efficiency of DNA.
- Detection ranges of DNA at different materials modified electrodes were compared.