Abstract

The construction and development of enzyme-free sensors made of non-precious metals that are extremely sensitive to glucose is of great importance for treatment of diabetes. A room temperature reaction method was used to grow ZIF-67@GO nanocubes on nickel foam substrates, followed by a hydrothermal method to construct Co(OH)2 nanomaterials. From this NF/ZIF-67@GO/Co(OH)2 enzyme-free glucose sensor with a unique structure was designed. The results and the charge transfer process of glucose's catalytic oxidation detection were systematically investigated in the composite material. The experimental results show that this sensor exhibits good electrochemical activity for glucose detection. It has a linear range of 0.1 μM-8.546 mM, a very high sensitivity of 2412.7 μA mM−1 cm−2, and its low detection limit is 0.934 M (signal-to-noise ratio of 3). These results indicate that the sensor is capable of accurately and sensitively detecting glucose concentration and has great potential for use in practical applications. The synthesis method is simple, fast, low-cost and easy to apply to electrochemical electrodes. Besides, the material has reproducibility, stability and good selectivity.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.