Improvement of sensitive CuO NFs-ITO nonenzymatic glucose sensor based on in situ electrospun fiber

► CuO NFs sensor prepared by electrospun method has a high sensitivity to glucose. ► Direct electron transfer between CuO and ITO ensures fast response to glucose. ► Sensor shows a stable amperometric response to glucose. ► CuO NFs/ITO electrode has a potential application for the routine analysis of glucose.