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 8.5 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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引用次数: 0

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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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。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.