Fig. 4: Remote monitoring and flexible integrated device.
From: Flexible organic integrated electronics for self-powered multiplexed ocular monitoring
a Circuit diagram connected with NFC chip and self-powered OECT sensor. b RFID response to the glucose and Ca2+ sensor under different concentrations. c The calibrated concentration of glucose and Ca2+ in human tears. The tears are collected before breakfast and 1.5 h after breakfast separately. d The normalized current response of the flexible integrated device.
