Fig. 3: Testing of electrodes.
From: High-precision flexible sweat self-collection sensor for mental stress evaluation

A Different concentration under NIP. B Verification of MIP function. C MIP layer gradient with the solution itself as the conductive layer (D) and the fitting curve. E MIP concentration gradient of PCSH conductive layer (F) and the fitting curve. G Repeated experiments in the PCSH-mediated layer proved the superiority of PCSH. H Interference experiments with impurities hardly affect the concentration identification of MIP. I The stability test was carried out after storage at different times.