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-hydroxymethylfurfural in foods

IF 9.8 1区农林科学 Q1 CHEMISTRY, APPLIED Food Chemistry Pub Date : 2025-04-11 DOI:10.1016/j.foodchem.2025.144249

Yahao Liu , Ying Gu , Lunzhao Yi , Kun Ge

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Abstract

Problem of research

Owing to insufficient stability and low detection accuracy, current 5-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 (NiRs@AgNPs) were developed for self-calibration colourimetric/SERS dual-mode detection of 5-HMF in foods.

Remarkable methodology

NiRs@AgNPs integrated magnetism 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 oxidised 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⁻¹, with limits of detections of 0.05 and 0.02 mg L⁻¹ for the colourimetric and SERS modes, respectively.

Significance of study

The dual-mode strategy improves reliability and expands the applicability of 5-HMF detection in complex food matrices by overcoming single-mode limitations.

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具有磁性、过氧化物酶样和表面增强拉曼散射活性的三功能银纳米修饰磁性刺状镍棒用于食品中5-羟甲基糠醛的自校准双模式检测

研究目的本研究开发了新型三功能银纳米粒子修饰的磁性刺状镍棒（NiRs@AgNPs），用于食品中 5-HMF 的自校准比色/SERS 双模式检测。通过抑制过氧化物酶样活性和抑制氧化 TMB 的形成，5-HMF 触发了双模式信号还原（SERS/UV-Vis）。研究意义该双模式策略克服了单一模式的局限性，提高了在复杂食品基质中检测 5-HMF 的可靠性并扩大了其适用范围。

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来源期刊

Food Chemistry 工程技术-食品科技

CiteScore

16.30

自引率

10.20%

发文量

3130

审稿时长

122 days

期刊介绍： Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.