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. Author manuscript; available in PMC: 2017 Jan 28.
Published in final edited form as: Nature. 2016 Jan 28;529(7587):509–514. doi: 10.1038/nature16521

Extended Data Figure 2. The characterizations of the modified electrodes.

Extended Data Figure 2

a, Cyclic voltammetry of the amperometric glucose and lactate sensors using Prussian blue as a mediator in PBS (pH 7.2). Scan range, −0.2 V to 0.5 V; scan rate, 50 mV s−1. b, Potential stability of a PVB-coated Ag/AgCl electrode and a solid-state Ag/AgCl reference electrode (versus commercial aqueous Ag/AgCl electrode) in different NaCl solutions. c, d, The stability of a PVB-coated reference electrode in solutions containing 50 mM NaCl and 10 mM of different anionic (c) and cationic (d) solutions. Data recording was paused for 30 s for each solution change in b–d.