Fig. 2From: Nanomaterials-based portable electrochemical sensing and biosensing systems for clinical and biomedical applicationsPicture of the portable electrochemical detection of glucose incorporating with smartphone (a); Software interface of APP (b); Electrodes setup (c); FESEM image of the sensing element gold nanoparticles dispersed on CuO nanowires (d) (Zhao et al. 2021)Back to article page