A disposable and sensitive non-enzymatic glucose sensor based on a 3D-Mn-doped NiO nanoflower-modified flexible electrode
Huisi Yang, Yian Hu, Xinxue Yin, Jiaqing Huang, Cailin Qiao, Zhikun Hu, Congjuan He, Danqun Huo, Changjun Hou
Abstract
has low redox potential. Therefore, the electrode has a linear range of 3-5166 μM for glucose detection, with a detection limit as low as 0.28 μM, showing excellent selectivity and reproducibility. The composite-modified electrode provides accurate detection results with real human serum samples, which are in full agreement with those of commercial blood glucose meters. In addition, we tested the glucose content in tea and sorghum fermentation broth at different stages, further expanding the application range of the Mn-NiO sensors. The nano-enzyme sensor fabricated herein offers a new idea for further integration into wearable flexible electronic devices for accurate glucose detection.