Synergistic effect of greenly synthesized nanoparticles embedded in molecular imprinted polymer for the detection of food preservative: Formalin

IF 8.5 1区农林科学 Q1 CHEMISTRY, APPLIED

Food Chemistry Pub Date : 2025-05-27 DOI:10.1016/j.foodchem.2025.144873

Shivani Maurya, Roli Verma

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Abstract

We report a neoteric study that accentuates the effectiveness of substrate-less molecular imprinted polymer (MIP) block acting as probe in detecting a carcinogenic food preservative, formalin (FOL). FOL is generally mixed with consumable products to increase their shelf-life. However, its ingestion has exposed human health to severe illnesses, comparable to chronic cancer. Present study demonstrates FOL detection through phenomenon of localized surface plasmon resonance (LSPR) alongside MIP. The LSPR spectra arising from the attributes of embedded NP's are recorded to characterize the MIP probe. There exists a wide linear range (R² > 0.9) from 150 μM to 3 mM with 15.5 μM as limit of detection and 0.01395 nm/μM as the probe's sensitivity. The probe shows high imprinting factor (IF) of 6.25, and recovery percentage greater than 97 % in real sample analysis. Overall, this study presents an efficient method of monitoring food adulteration and offers features like real-time monitoring, low fabrication cost, and portability.

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绿色合成纳米颗粒嵌入分子印迹聚合物对食品防腐剂福尔马林检测的协同效应

我们报告了一项新近的研究，该研究强调了无底物分子印迹聚合物（MIP）块作为检测致癌食品防腐剂福尔马林（FOL）的探针的有效性。FOL通常与消耗品混合以增加其保质期。然而，它的摄入使人类健康暴露于严重的疾病，堪比慢性癌症。本研究利用局域表面等离子体共振（LSPR）现象和MIP探测FOL。记录由嵌入的NP的属性产生的LSPR谱来表征MIP探针。探针的检出限为15.5 μM，灵敏度为0.01395 nm/μM，线性范围（R2 >； 0.9）为150 μM ~ 3 mM。探针印迹因子（IF）高达6.25，在实际样品分析中回收率大于97% %。总的来说，本研究提出了一种有效的监测食品掺假的方法，并具有实时监测、低制造成本和便携性等特点。

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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.