Three-dimensional reduced graphene oxide aerogel modified electrode for the sensitive quercetin sensing and its application

Materials Science & Engineering. C, Materials for Biological Applications
Xueliang NiuGuangjiu Li

Abstract

Quercetin belongs to flavonoid drug that has favorable properties such as antiviral, anticancer, anti-allergic and anti-tumor. Therefore a sensitive method is highly required for quercetin determination. In this paper, a three-dimensional reduced graphene oxide aerogel (3D-rGA) with excellent porous framework was synthesized via one-step hydrothermal technique. The characteristics and performances of 3D-rGA were checked by SEM, TEM, BET, XRD, Raman, FT-IR, XPS and electrochemical methods, which exhibited good properties including unique porous structure, large surface area and excellent conductivity. 3D-rGA was further used as the modifier on carbon ionic liquid electrode (CILE) to construct a modified electrode, which was applied to sensitive and selective determination of quercetin. Electrochemical responses of quercetin were accelerated with a pair of symmetrical cyclic voltammetric peaks in good shape appeared and the electrochemical parameters were calculated. The sensitive oxidation response of quercetin from differential pulse voltammetry was verified. Under the selected conditions, electroanalysis of quercetin was established by plotting the oxidation peak currents against quercetin concentrations with linear regression...Continue Reading

Citations

Apr 13, 2019·Journal of Separation Science·Shuling ZhaoXiaoyan Liu
May 21, 2019·Critical Reviews in Analytical Chemistry·Goksu OzcelikaySibel A Ozkan
Sep 3, 2019·Small·Jing YangWei Liu
Oct 23, 2020·Journal of Food Science and Technology·Ayat Mohammad-RazdariMaryam Siadat

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