Moreover, MIP-coated electrode was characterized using CV (Figure ). After extraction, capacitive current recorded for MIP coated electrode was decreased and the Ru(NH3)6Cl3 redox probe oxidation/reduction peaks were slightly more pronounced. Multicyclic CV experiments performed for MIP and NIPcoated electrodes proved that MIP film is electrochemically stable and does not deteriorate during electrochemical experiments (Figure , Supplementary materials). Importantly, current observed for the MIP film coated electrode was about one order of magnitude higher than those observed for uncoated carbon paper electrode (Figure , Supplementary materials). Moreover, after MIP film deposition peak-to-peak separation for redox probe is reduced. That is, on pristine carbon paper electrode Ru(NH3)6Cl3 redox probe peak-to-peak separation was equal to 190 mV (Figure , Supplementary materials). After MIP deposition and template extraction it was equal to 85 mV (Figure , curve 3'). Reduction and oxidation of redox probe became more electrochemically reversible. Presumably, it is due to a higher conductivity of MIP film. As a result, we observed enhancement of electrochemical response after MIP film deposition. Moreover, MIP-coated paper electrode was characterized with EIS on each step of its fabrication (Figure ). Two semicircles were visible in presence of Ru(NH3)6Cl3 redox probe before MIP film deposition on carbon paper electrode (Figure , inset). The smaller one may be attributed to charge transfer resistance (Rct) of the faradaic process on the electrode surface and capacitance of the electrochemical double layer (CPE1). The second semicircle may originate from diffusion of redox probe through porous structure of the electrode and it is described by parallel resistance (R3) and constant phase element (CPE2) . The equivalent circuit model fitted to this plot is shown in Figure . After MIP film deposition both semicircles were much less pronounced (Figure ) but the recorded spectra were still well described by the same equivalent circuit. This behavior may be explained by higher conductivity of MIP-coated electrode. Moreover, PPy MIP-coated electrode surface is more hydrophilic than pristine carbon paper, since bare carbon paper consists of 30% wet-proof coating, according to its producer, and polypyrrole is known to have hydrophilic properties. This was supported by contact angle measurements, where 10 µL of water was dripped onto the surface of bare carbon paper and electrodeposited MIP film. In the first case, a contact angle of (147.97 ± 0.22)° was obtained, while after covering with a MIP layer, this angle decreased to (92.17 ± 0.31)° (Figure ). Therefore, penetration of redox probe solution into the pores of electrode material was easier. The changes of the EIS spectra caused by template extraction and subsequent MTZ binding were most pronounced in the region related to diffusion of the redox probe.