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. Author manuscript; available in PMC: 2019 Jul 27.
Published in final edited form as: Biosens Bioelectron. 2019 Mar 11;133:39–47. doi: 10.1016/j.bios.2019.02.069

Fig. 2.

Fig. 2.

(A) pH sensor calibration curve (Error bars in each curve are standard deviations (SD) between 6 data points). (B) Lactate sensor 3D calibration curve. (C) Glucose sensor 3D calibration curve.