文献类型：期刊文献

英文题名：Highly Sensitive and Flexible Copper Oxide/Graphene Non-Enzymatic Glucose Sensor by Laser Direct Writing

作者：Li, Qi[1];Yang, Dasheng[1];Gao, Yang[1,2];Wang, Ziyang[1];Yin, Ruixue[1];Xuan, Fuzhen[1,3]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China;[3]East China Univ Sci & Technol, Shanghai Collabrat Ctr High end Equipment Reliabil, Shanghai 200237, Peoples R China

年份：2023

卷号：2

期号：6

外文期刊名：ADVANCED SENSOR RESEARCH

收录：WOS:【ESCI(收录号:WOS:001283940100003)】；

基金：Q.L. and D.Y. contributed equally to this work. This project was supported by the National Key Research and Development Program of China (GrantNo. 2020YFB2008500), the National Natural Science Foundation of China(Grant Nos. 51835003, 52205154, and 61804054), and the Open Project Program of Wuhan National Laboratory for Optoelectronics (Grant No.2020WNLOKF007)r No Statement Availabler No Statement Available

语种：英文

外文关键词：copper oxide; flexible sensors; glucose detection; graphene; laser direct writing

摘要：Accurate and convenient detection of human blood glucose levels is an effective method for early diagnosis of diabetes and prevention of complications. The flexible and wearable electrochemical glucose sensor with low cost, fast responsiveness, good stability, reliability, and high sensitivity has attracted much attention in monitoring glucose concentration. The preparation of a conductive layer with catalytic activity on a flexible substrate is the key to making a wearable glucose sensor. Here, graphene composite materials sintered with copper oxide (CuO) nanoparticles are successfully prepared on a polyimide film by laser direct writing method and fabricated a flexible non-enzymatic glucose sensor using laser-engraved graphene (LEG) as a conductive electrode. The CuO/LEG sensor exhibits a high sensitivity of 619.43 mu A mm-1 cm-2 in 0-3 mm glucose and 462.96 mu A mm-1 cm-2 in 0-8 mm glucose. In addition, the CuO/LEG sensor shows good reproducibility, high anti-interference capability, and long-term stability. It also presents good bending stability, which can maintain 82.40% initial current after 100 times bending. Moreover, the CuO/LEG sensor has an obvious step-ampere response in the detection of sweat samples, indicating the great potential of wearable sweat sensors. A high-performance copper oxide (CuO)/laser-engraved graphene (LEG) based non-enzymatic glucose sensor is prepared by laser direct writing method. The CuO/LEG sensor exhibits a high sensitivity of 619.43 mu A mm-1 cm-2 in 0-3 mm glucose and 462.96 mu A mm-1 cm-2 in 0-8 mm glucose. Moreover, the CuO/LEG sensor also shows good selectivity, reproducibility, long-term stability, and bending stability. image