Synergistic effects of layer-by-layer films for highly selective and sensitive electrochemical detection of trans-resveratrol.

Xin Yang, Qianjuan Guo, Jinhua Yang, Shuli Chen, Feilong Hu, Yangjian Hu, Hongwei Lin

Food chemistry 2021 Feb 15

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Trans-resveratrol (TRA) possesses a variety of pharmacological activities, making important to explore simple, inexpensive, and reliable analytical methods for identification and quantification of it. We report on the synergistic effects originated from layer-by-layer films of graphene (Gr)-gold nanoparticles (Au) and molecularly imprinted polymers (MIPs) modified glassy carbon electrode (GCE) for electrochemical detection of TRA. To construct the TRA electrochemical sensor (GCE|Gr-Au/MIPs), the films of Gr-Au, MIPs were step by step formed onto GCE via in-situ and controllable electrodeposition and polymerization processes. The compositions, morphologies, and electrochemical properties of obtained films were investigated by various methods. Under the optimized experimental conditions, the electrochemical sensor showed superior performance toward selective and sensitive determination of TRA with K3[Fe(CN)6] as electrochemical signal probe. The electrochemical sensor was applied to determine TRA in real samples with good accuracy and recovery, verifying the broad and practical application prospects for foods and medicines analysis. Copyright © 2020. Published by Elsevier Ltd.

Citation

Xin Yang, Qianjuan Guo, Jinhua Yang, Shuli Chen, Feilong Hu, Yangjian Hu, Hongwei Lin. Synergistic effects of layer-by-layer films for highly selective and sensitive electrochemical detection of trans-resveratrol. Food chemistry. 2021 Feb 15;338:127851