Electrochemical sensing of label free DNA hybridization related to breast cancer 1 gene at disposable sensor platforms modified with single walled carbon nanotubes

► Detection of hybridization related to breast cancer 1 was explored using carbon nanotube (SWCNT) based screen printed graphite electrodes (SPEs). ► The optimum analytical conditions; such as, probe and target concentration, and selectivity were studied. ► The voltammetric results were also complemented with electrochemical impedance spectroscopy (EIS).