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Page 10 of 44 Jung et al. Soft Sci 2024;4:15 https://dx.doi.org/10.20517/ss.2024.02
Figure 3. Response mechanisms of non-enzymatic electrochemical sensors. (A) Scheme for aptamer-based electrochemical sensors of
competitive format and sandwich format; (B) An electrochemical aptamer-based sensor blinds and releases a target molecule; (C)
Scheme for the synthesis and re-binding of molecular imprinted polymers; (D) Representation of an electrochemical sensor for ion
measurement having a polymeric ion-selective membrane, showing the movement of ion and charge separation that results in the
surface potential which is measured.
