Fig. 4: Myoelectric Properties of PIC-G-Ag electrode.
From: 3D printable and myoelectrically sensitive hydrogel for smart prosthetic hand control
a Adhesion mechanism and optical photograph of PIC-G gels attaching tightly on the skin. b SEM images of micrometer-scale gaps existing at the interface between commercial electrode and pigskin while no such gaps at the interface of PIC-G gel to pigskin as well as to Ag electrode. c Adhesion strengths of PIC-G gels against pigskin or Ag electrode. d Schematic of the electron-ion transducing from epidermis to electrode and the equivalent circuit model. e–g Interfacial resistance of PIC-G gels as a function of LiCl, MBAA, and photopolymerization time. h Comparison between this work and reported sEMG electrodes in terms of contact impendency and adhesive force, with the blue bar representing the impedance of human skin (6–10 kΩ). i, j sEMG signal quality of the PIC-G-Ag electrode under cyclic deformation in comparison to the commercial electrode
