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(A) versatile, wireless, flexible potentiostat platform for electrochemical wearable biosensors
Zabeeb, Arsalan Sungkyunkwan university 2020 국내석사
Wearable flexible biosensors are a prominent candidate for the e-health care system. Specifically, for Sensor internet of thing (SIoT) encompassing skin-attachable stretchable/flexible hardware, onbody electroanalytical analysis, user interface, and cloud database through a mobile device. However, existing benchtop commercial and standalone potentiostats exhibit constraints in terms of onbody electroanalytical analysis capability and hardware flexibility. Which are vital for wearable wireless flexible biosensors respectively. Herein, i present flexible versatile potentiostat capable of performing, linear sweep, cyclic voltammetry, chronoamperometry, square wave voltammetry, and electrochemical impedance spectroscopy. The hardware design contains off-the-shelf components and Bluetooth low energy (BLE) module for wireless connectivity. All mounted on a flexible printed circuit board (FPCB) which induces hardware conformity essential for wearable wireless flexible biosensing systems. Comparative experiments performed with commercial benchtop potentiostat proved its analytical performance of R^2=0.9898 with an operating electrical range of ±1.0 Volts and ±180uA, sufficient for most sensors.