Application of graphene in electrochemical sensors
Carbon nanomaterials usually have high specific surface area, excellent conductivity and biocompatibility, which perfectly meet the requirements of electrochemical sensing materials. As a typical representative of carbon materials with great potential, graphene has been recognized as an excellent electrochemical sensing material. Scholars all over the world are studying graphene, which undoubtedly plays an immeasurable role in the development of electrochemical sensors.
Wang et al. Used the prepared Ni NP / graphene nanocomposite modified electrode to detect glucose. Through the synthesis of new nanocomposites modified on the electrode, a series of experimental conditions were optimized. The results show that the sensor has low detection limit and high sensitivity. In addition, the interference experiment of the sensor was carried out, and the electrode showed good anti-interference performance for uric acid.
Ma et al. Prepared an electrochemical sensor based on 3D graphene Foams / flower like nano CuO. The sensor can be directly applied to ascorbic acid detection, with high sensitivity, fast response speed and less response time than 3S. The electrochemical sensor for rapid detection of ascorbic acid has great potential for application and is expected to be further applied in practical applications.
Li et al. Synthesized thiophene sulfur doped graphene, and prepared dopamine electrochemical sensor by enriching S-doped graphene surface micropores. The new sensor not only shows strong selectivity for dopamine and can eliminate the interference of ascorbic acid, but also has good sensitivity in the range of 0.20 ~ 12 μ The detection limit was 0.015 μ M。
Liu et al. Synthesized cuprous oxide nanocubes and graphene composites and modified them on the electrode to prepare a new electrochemical sensor. The sensor can detect hydrogen peroxide and glucose with good linear range and detection limit.
Guo et al. Successfully synthesized the composite of nano gold and graphene. Through the modification of the composite, a new isoniazid electrochemical sensor was constructed. The electrochemical sensor showed good detection limit and excellent sensitivity in the detection of isoniazid.
Post time: Jul-22-2021