Innovative screen-printed electrodes on cork composite substrates applied to sulfadiazine electrochemical sensing

This work reports the first use of cork as substrate to produce 3-electrode electrochemical devices, which may be very important conduct sustainable worldwide biochemical testing in point-of-care. It consists laminated covered by a thin-film an insulating resin and printed system format. Silver ink was used print electrical tracks reference electrode, while carbon working auxiliary electrodes. The analytical performance cork-based devices compared other common supports, PET ceramics form screen-printed electrodes (SPEs). displayed higher current values better reversibility features were able undergo stable modification with conductive nanomaterials. They further applied detect sulfadiazine (SDZ), antibiotic human that is also environmental contaminant, modifying electrode molecularly imprinted polymer (MIP) layer obtained electropolymerization pyrrol. results confirmed ability MIP film SDZ selectively showed reproducible increasing signals for concentrations SDZ, from 8.0 186.0 ?M. Direct comparison commercial SPEs greater sensitivity SPEs, 10× lower limits detection. Overall, are valuable alternative currently available systems, considering environment cost gains this approach. These especially times where global became necessary improved public health management.