Special chemical reactions combined with SERS techniques for improving detection of trace and Raman-inactive food contaminants: Principles and applications

Pu, Hongbin; Ouyang, Qihong; Sun, Da-Wen

doi:10.1016/j.tifs.2024.104416

Trends in Food Science & Technology

2024

DOI: 10.1016/j.tifs.2024.104416

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Special chemical reactions combined with SERS techniques for improving detection of trace and Raman-inactive food contaminants: Principles and applications

Hongbin Pu,

Qihong Ouyang,

Da-Wen Sun

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Cited by 7 publications

References 128 publications

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Graphene Oxide/Zinc Phthalocyanine Selective Singlet Oxygen Visible‐Light Nanosensor for Raman‐Inactive Compounds

Zvyagina,

Shiryaeva,

Afonyushkina

et al. 2024

Small Methods

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A novel phthalocyanine‐based hybrid nanofilm is for the first time successfully applied as an oxidative platform for surface enhanced Raman spectroscopy (SERS) sensing to fine‐resolve Raman‐inactive compounds. The hybrid is formed by self‐assembly of zinc(II) 2,3,9,10,16,17,23,24‐Octa[(3′,5′‐dicarboxy)‐phenoxy]phthalocyaninate (ZnPc*) with the solid‐supported monolayer of graphene oxide (GO) mediated by zinc acetate metal cluster. Atomic force microscopy, UV–vis and fluorescence spectroscopies confirm that this simple coordination motive in combination with molecular structure of ZnPc* prevents contact quenching of the light‐excited triplet state through aromatic stacking with GO particles. Fluorescence probing with Sensor Green and terephthalic acid as specific indicators of active oxygen intermediates shows that the hybrid nanofilm initiates selective singlet oxygen generation under visible light. Direct one‐electron oxidation of tetramethylbenzidine (TMB) (1.0×10−7 m) on the hybrid surface in the presence of 100 nm silver nanoparticles as plasmonic hot‐spots under 450–640‐nm light irradiation yields well‐resolved resonance Raman spectrum of the oxidized form TMB+1. Using these hybrid nanofilms as visible light platforms for redox reaction of target analytes without additional oxidizing agents, the range of Raman‐detectable compounds can be significantly expanded through a rapid ultrasensitive SERS screening of substances currently considered Raman‐inactive.

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Graphene Oxide/Zinc Phthalocyanine Selective Singlet Oxygen Visible‐Light Nanosensor for Raman‐Inactive Compounds

Zvyagina,

Shiryaeva,

Afonyushkina

et al. 2024

Small Methods

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show abstract

Experimental and Numerical Investigations of Surface-Enhanced Raman Scattering (SERS) Sensors for Trace Mancozeb Detection: A Step Toward the Prevention of Reproductive Disorders Caused by this Hazardous Substance

Sahbafar,

Mohsennezhad,

Zeinalizad

et al. 2024

Plasmonics

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Ultrasensitive detection of contaminants in milk using a novel NMS-Ag modified water-resistant paper substrate

Su,

Li,

et al. 2024

Food Chemistry

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Special chemical reactions combined with SERS techniques for improving detection of trace and Raman-inactive food contaminants: Principles and applications

Cited by 7 publications

References 128 publications

Graphene Oxide/Zinc Phthalocyanine Selective Singlet Oxygen Visible‐Light Nanosensor for Raman‐Inactive Compounds

Graphene Oxide/Zinc Phthalocyanine Selective Singlet Oxygen Visible‐Light Nanosensor for Raman‐Inactive Compounds

Experimental and Numerical Investigations of Surface-Enhanced Raman Scattering (SERS) Sensors for Trace Mancozeb Detection: A Step Toward the Prevention of Reproductive Disorders Caused by this Hazardous Substance

Ultrasensitive detection of contaminants in milk using a novel NMS-Ag modified water-resistant paper substrate

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