Work

Ultrasensitive electrochemical sensor for vanillin based on CuS doped highly conductive carbon materials

Year: 2025

Type: article

Abstract: Herein, a sensitive and selective electrochemical sensor modified with CuS doped highly conductive carbon materials (HCC) were succes s fully used to detect vanillin (VAN), which manufactured in a low temperature one step process. Experimental analysis by differential pulse voltammetry (DPV) and cyclic voltammetry (CV) under optimised conditions revealed excellent rate characteristics due to sub-micron spherical particles on the surface of CuS nanoparticles and synergistic effects with the excellent electrical conductivity of HCC. The prepared functionalized CuS-HCC/GCE has an ultra high specific surface area (10.85 mm 2 ) and selective VAN determination, whose detection limit and linear range of VAN sensor are 61 pM and 0.1 nM-120 μM respectively, and has a terrific recovery rate in food samples (96.7 % to 103.8 %). These results show that this work has provided a new promising food sensor for detecting VAN.

Source: Food Chemistry

DOI: 10.1016/j.foodchem.2025.144093

Authors: Hui Wang, Jiejun Li, Pengcheng Zhao, Junjie Fei, Yixi Xie

Institution: Xiangtan University

Language: English

Topic: Electrochemical sensors and biosensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,930

Funders: National Natural Science Foundation of China, Natural Science Foundation of Hunan Province, Hunan Association for Science and Technology