Figure 7.

(A) The BPE‐ECL device for single cell surface antigen analysis and schematic diagram its positive extreme analysis interface. Reproduced with permission from Ref. [41]. Copyright 2018, American Chemical Society; (B) Asymmetric WNE based BPE strategy for monitoring electrochemical reaction dynamics at single live cells. Reproduced with permission from Ref. [14]. Copyright 2012, American Chemical Society; (C) Schematic illustration of the WNE‐based BPE‐ECL strategy for imaging analysis of cytosol at single cells. Reproduced with permission from Ref. [42]. Copyright 2020, Wiley.