Magnetic molecularly imprinted polymers as a fluorescent sensor for selective detection of Sudan I in chili powder

Xu, Rui; Lin, Jintong; Wang, Yanjie; Cui, Yahan; Liu, Ding; Chen, Yanhua

doi:10.1039/d3ay00591g

Anal. Methods

2023

DOI: 10.1039/d3ay00591g

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Magnetic molecularly imprinted polymers as a fluorescent sensor for selective detection of Sudan I in chili powder

Rui Xu

Jintong Lin

Yanjie Wang

et al.

Abstract: A novel strategy to design and prepare magnetic molecularly imprinted polymers (MMIPs) is proposed in this manuscript for low-cost and fast detection of Sudan I.

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2024

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Cited by 2 publications

References 46 publications

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Fluorescent probe based on GO/g‐C₃N₄‐PEG@Cu NPs/MIP for the detection of dopamine in banana

Wang,

Pang,

et al. 2024

Luminescence

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Graphene oxide (GO) and copper nanoparticles (Cu NPs) were incorporated to modulate and enhance the fluorescence properties of pegylated graphite phase carbon nitride (g‐C3N4‐PEG). Combined with the specific recognition capability of a molecular imprinted polymer (MIP), a highly sensitive and selective fluorescent molecular imprinted probe for dopamine detection was developed. The fluorescent g‐C3N4‐PEG was synthesized from melamine and modified with GO and Cu NPs to obtain GO/g‐C3N4‐PEG@Cu NPs. Subsequently, MIP was prepared on the surface of GO/g‐C3N4‐PEG@Cu NPs using dopamine as the template molecule. Upon elution of the template molecule, a dopamine‐specific GO/g‐C3N4‐PEG@Cu NPs/MIP fluorescence probe was obtained. The fluorescence intensity of the probe was quenched through the adsorption of different concentrations of dopamine by the MIP, thus establishing a novel method for the detection of dopamine. The linear range of dopamine detection was from 5 × 10−11 to 6 × 10−8 mol L−1, with a detection limit of 2.32 × 10−11 mol L−1. The sensor was utilised for the detection of dopamine in bananas, achieving a spiked recovery rate between 90.3% and 101.3%. These results demonstrate that the fluorescence molecular imprinted sensor developed in this study offers a highly sensitive approach for dopamine detection in bananas.

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Fluorescent probe based on GO/g‐C₃N₄‐PEG@Cu NPs/MIP for the detection of dopamine in banana

Wang,

Pang,

et al. 2024

Luminescence

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show abstract

A novel enrichment and sensitive method for rapid determination of 4 sulfonamide antibiotics residues in fish

Huang,

Chen,

Wei

et al. 2024

LWT

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Magnetic molecularly imprinted polymers as a fluorescent sensor for selective detection of Sudan I in chili powder

Abstract: A novel strategy to design and prepare magnetic molecularly imprinted polymers (MMIPs) is proposed in this manuscript for low-cost and fast detection of Sudan I.

Cited by 2 publications

References 46 publications

Fluorescent probe based on GO/g‐C₃N₄‐PEG@Cu NPs/MIP for the detection of dopamine in banana

Fluorescent probe based on GO/g‐C₃N₄‐PEG@Cu NPs/MIP for the detection of dopamine in banana

A novel enrichment and sensitive method for rapid determination of 4 sulfonamide antibiotics residues in fish

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Magnetic molecularly imprinted polymers as a fluorescent sensor for selective detection of Sudan I in chili powder

Abstract: A novel strategy to design and prepare magnetic molecularly imprinted polymers (MMIPs) is proposed in this manuscript for low-cost and fast detection of Sudan I.

Cited by 2 publications

References 46 publications

Fluorescent probe based on GO/g‐C3N4‐PEG@Cu NPs/MIP for the detection of dopamine in banana

Fluorescent probe based on GO/g‐C3N4‐PEG@Cu NPs/MIP for the detection of dopamine in banana

A novel enrichment and sensitive method for rapid determination of 4 sulfonamide antibiotics residues in fish

Contact Info

Product

Resources

About

Fluorescent probe based on GO/g‐C₃N₄‐PEG@Cu NPs/MIP for the detection of dopamine in banana

Fluorescent probe based on GO/g‐C₃N₄‐PEG@Cu NPs/MIP for the detection of dopamine in banana