Trifunctional silver nanoparticle modified magnetic prickly-like nickel rods with magnetism, peroxidase-like and surface-enhanced Raman scattering activity for self-calibration dual-mode detection of 5-hydroxymethylfurfu-ral in foods

被引：0
作者：
Liu, Yahao [1 ]
Gu, Ying [1 ]
Yi, Lunzhao [1 ,2 ]
Ge, Kun [1 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Food Sci & Engn, Kunming 650500, Peoples R China
[2] Yunnan State Farms Grp Co Ltd, Kunming 650233, Peoples R China
来源：
FOOD CHEMISTRY | 2025年 / 483卷
关键词：
5-Hydroxymethylfurfural; Trifunctional materials; Dual-mode sensor; Surface-enhanced Raman spectroscopy; NiR:@AgNPs/apt; SUBSTANCES; ACRYLAMIDE; SAFETY;
D O I：
10.1016/j.foodchem.2025.144249
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Problem of research: Oving to insufficient stability and low detection accuracy, current S-HMF detection technologies are limited in complex food matrices Aim of study: In this study, novel trifunctional Ag nanoparticle-modified magnetic prickly-like Ni rods (NiR-@AgNPs) were developed for self-calibration colourimetric/SERS dual-mode detection of 5-HMF in foods. Remarkable methodology: NiRs AgNPs integrated magnetizm with peroxidase-like and SERS activities through NiRs-AgNP synergy. Aptamer immobilization enabled specific 5-HMF recognition, with 5-HMF triggering dual-mode signal reduction (SERS/UV-Vis) through inhibited peroxidase-like activity and suppressed oxidized TMB formation. Remarkable results: The composite exhibited good linear responses for 5-HMF ranging from 0.1 to 6.0 and 0.05 to 7.5 mg L, with limits of detections of 0.05 and 0.02 mg L. for the colourimetric and SERS modes, respectively. Significance of study: The dual-mode strategy improves reliability and expands the applicability of 5-HMP detection in complex food matricer by overcoming single-mode limitations.
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页数：9
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