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. 2019 Aug 15;21(4):81. doi: 10.1007/s10544-019-0412-y

Fig. 13.

Fig. 13

The use of follicular pathway in bodily fluid sampling provided a calibration-free glucose monitoring platform. a Schematic illustration of the glucose preferential pathway (hair follicles). b A screen-printed array fixed onto a volunteer’s forearm. The array was connected to a potentiostat. c The platform enabled good tracking of the blood glucose as compared to commercial platform. Pictures retrieved from Lipani et al. 2018