Issue 20, 2023

A sensitive enzyme-free electrochemical sensor based on a rod-shaped bimetallic MOF anchored on graphene oxide nanosheets for determination of glucose in huangshui

Abstract

In this work, we propose a bimetallic Ni–Co based MOF attached to graphene oxide (GO) by a one-step hydrothermal approach which may be employed as an electrochemical enzyme-free glucose sensor. Due to the obvious synergistic catalysis of Ni and Co, as well as the combination of NiCo-MOF and GO, NiCo-MOF/GO not only enhances energy transfer and electrocatalytic performance but also provides a larger surface area and more active sites. Electrochemical studies show that NiCo-MOF/GO exhibits outstanding electrochemical activity, with a sensitivity of 11 177 μA mM−1 cm−2 and 4492 μA mM−1 cm−2 in the linear ranges of 1–497 μM and 597–3997 μM, a detection limit of 0.23 μM, and a response time of 2 seconds. More importantly, the newly fabricated sensor is successfully applied for glucose determination in huangshui. This method provides a novel strategy for the controlled fermentation process and product quality of Chinese baijiu.

Graphical abstract: A sensitive enzyme-free electrochemical sensor based on a rod-shaped bimetallic MOF anchored on graphene oxide nanosheets for determination of glucose in huangshui

Supplementary files

Article information

Article type
Paper
Submitted
08 dec 2022
Accepted
22 mar 2023
First published
15 maj 2023

Anal. Methods, 2023,15, 2417-2426

A sensitive enzyme-free electrochemical sensor based on a rod-shaped bimetallic MOF anchored on graphene oxide nanosheets for determination of glucose in huangshui

Y. Ma, Y. Leng, D. Huo, D. Zhao, J. Zheng, H. Yang, P. Zhao, F. Li and C. Hou, Anal. Methods, 2023, 15, 2417 DOI: 10.1039/D2AY01977A

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