NDLI: Green Synthesis of Molecularly Imprinted Polymers for Dispersive Magnetic Solid-Phase Extraction of Erythrosine B Associated with Smartphone Detection in Food Samples.

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Green Synthesis of Molecularly Imprinted Polymers for Dispersive Magnetic Solid-Phase Extraction of Erythrosine B Associated with Smartphone Detection in Food Samples.

Content Provider	Europe PMC
Author	Elfadil, Dounia Della Pelle, Flavio Compagnone, Dario Amine, Aziz
Editor	Casimiro, Maria Helena Monteiro, Bernardo
Copyright Year	2022
Abstract	Monitoring synthetic colorants in foods is important due to their potential toxicity and pathogenicity. We propose here a new and simple method for the extraction and determination of erythrosine B (ERT-B) in food samples. A composite of polydopamine-based molecularly imprinted polymers coating magnetic nanoparticles (Fe₃O₄@PDA@MIP) was synthesized using a green approach and exploited for the magnetic dispersive solid-phase extraction (MDSPE) of ERT-B. Fe₃O₄@PDA@MIP provides a rapid extraction of ERT-B, exhibiting good reusability and preconcentration ability. Moreover, the MIP showed a relatively good imprinting factor (3.0 ± 0.05), demonstrating excellent selectivity against patent blue (an interfering dye) and other food matrix components. The proposed MDSPE was coupled to colorimetric smartphone-based detection that allowed us to obtain similar performances of UV-Vis spectroscopy detection. The smartphone-based optical detection facilitated the determination of ERT-B in the 0.5-10 mg/L range, with a limit of detection of 0.04 mg/L. The developed method was successfully employed to determine ERT-B in food samples (juice, candy, and candied cherries) with good recovery values (82-97%).
Journal	Materials (Basel)
Volume Number	15
DOI	10.3390/ma15217653
PubMed Central reference number	PMC9655850
Issue Number	21
PubMed reference number	36363243
e-ISSN	19961944
Language	English
Publisher	Molecular Diversity Preservation International (MDPI)
Publisher Date	2022-10-31
Access Restriction	Open
Subject Keyword	synthetic colorants food samples magnetic dispersive solid-phase extraction polydopamine molecularly imprinted polymers
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science

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