Fig. 1From: Identifying tumor cell-released extracellular vesicles as biomarkers for breast cancer diagnosis by a three-dimensional hydrogel-based electrochemical immunosensorIllustration of the electrochemical immunosensor for LC3+ EVs. (a) Synthesis of cAb-beads. (b) Enrichment of LC3+ EVs with cAb-beads. (c) Fabrication process of immunosensor. (LC3 cAb: LC3 capture antibody; LC3 dAb: LC3 detection antibody). Created with BioRender.comBack to article page