Highly Sensitive Detection of Organophosphate Insecticides Using Biosensors Based on Genetically Engineered Acetylcholinesterase and Poly(3,4-Ethylenedioxythiophene)

Figure 1

Cyclic voltamograms obtained in 0.1 M phosphate buffer pH7 in absence or presence of thiocholine 25 mM. Comparison between electrodes modified with PEDOT or CoPC (scan rate: 5 mV·sec⁻¹).