An extended gate field-effect transistor (EG-FET) type non-enzymatic glucose sensor with inkjet-printed copper oxide nanoparticles

Abstract We develop a disposable and cost-effective non-enzymatic glucose sensor consisting of an extended gate field effect transistor (EG-FET) to obtain effortless operation. The is fabricated by printing, gold (Au) precursor ink copper oxide nanoparticles (CuO NPs) inks using commercial inkjet printer on flexible Polyimide (PI) substrate. First, sensing properties are tested electrochemically. shows sensitivity 728.5 μA cm −2 mM −1 detection limit 0.01 with correlation coefficient (R) 0.998. observed linear dynamic range from 0.5 7 mM. After that, the electrode adapted EG-FET. Two response ranges extend 0.1 4 low concentration 1295 , 5 30 high 164 observed. EG-FET approach can enhance sensitivities amplification for extending glucose. presented work demonstrates that simply printed CuO NPs sensors be used at cost wide-range devices. Article Highlights A has been successfully developed. thin electrodes film. evaluate extended-gate field-effect sensors. estimated . structure merit simple operation personal health care