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. Author manuscript; available in PMC: 2019 Mar 15.
Published in final edited form as: Biosens Bioelectron. 2017 Oct 13;101:181–187. doi: 10.1016/j.bios.2017.10.019

Fig. 1.

Fig. 1

(A) Exploded view of the smartphone-based glucose sensing system showing the smartphone case, permanently-attached passive sensor strip, enzyme-loaded pellet, pellet-dispending stylus, and electronic readout circuits. (B) Dispensing carbon-composite pellets loaded with GOx onto the bare carbon working electrode for electrochemical analysis. (C) Block diagram of the electronic readout circuits.