Development of a new microbial biosensor based on conductive polymer/multiwalled carbon nanotube and its application to paracetamol determination

In the characterization studies of the biosensor some paramaters such as linearity, reproducibility, storage stability, substrat specificity and interference effect on the biosensor responses were determined. In the reproducibility experiments (n = 7), the average value, standard deviation, (SD) and coefficent of variation (CV%) were calculated to be 250.65 μM, ±1.55, 0.62% for 250 μM paracetamol concentration, consecutively. Detection limit was calculated as 2.9 μM by using visual evaluation mehod. In addition, paracetamol was carried out in drug samples by the developed biosensor.