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Schematic illustration of the novel phenylboronic acid copolymer-based electrochemical biosensor coupled with in vivo microdialysis for measurement of SA in the brain of a live mouse. The recognition of SA changed the conformation and wettability of the copolymer through synergetic hydrogen-bonding interactions, enabling sensitive electrochemical impedance spectroscopy detection. Adapted with permission [55]. Copyright 2017, ACS.
