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. 2024 Nov 29;22:743. doi: 10.1186/s12951-024-03035-w

Scheme. 1.

Scheme. 1

Schematic illustration of the proposed electrochemical aptasensor for HER2 detection in breast cancer. (A) Design and synthesis of the functionalized COF-immobolized HRP. (B) Schematic of the screening process for novel redox mediator. (C) Detection principle and clinical application of the aptasensor. Created with Figdraw