A highly sensitive and selective electrochemical sensor based on PIL-Br@ZIF-8/MXenes nanocomposite for 4-aminophenol detection in diverse food matrices
Year: 2025
Type: article
Abstract: The sensitive detection of trace food contaminants is imperative for food safety. This work reports the rational design of a poly (ionic liquid) bromide@zeolitic imidazolate framework-8/MXenes (PIL-Br@ZIF-8/MXenes) nanocomposite, in which a ZIF-8 core is functionalized with a poly (ionic liquid) shell and then assembled with MXenes into a 3D conductive network. This architecture leverages the synergistic properties of its components: the porous ZIF-8 provides superior molecular load capacity, the MXenes offer exceptional electrical conductivity and additional active sites, and the PIL-Br enhances ion transport, thereby significantly improving the electrode's sensitivity and selectivity. The developed sensor demonstrates excellent performance for 4-aminophenol detection across five diverse food matrices, with a broad linear range (0.5–75 μM) and an ultralow limit of detection (2.822 nM). Our study provides a novel and effective strategy for fabricating advanced sensing platforms for food safety monitoring. • An electrochemical sensor for the detection of 4-aminophenol in food residues was developed. • The sensor has high sensitivity, good selectivity and anti-jamming ability. • The sensor was used for the detection of 9 food samples. • The practicability of the UV–Vis method was verified in the detection of complex food samples.
Source: LWT
Authors: Ziliang Wan, Zulv Huang, Tianying Peng, Saiwen Liu, Jin Zhang, Chao Chen
Institution: Hunan City University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,240
Awards: G1082714161, G2596910019, G3991830504
OpenAlex ID: W4416399023