Molecularly imprinted photopolymers combined with smartphone-based optical sensing for selective detection of bisphenol A in foods

Elfadil, Dounia; Amine, Aziz

doi:10.1007/s00216-024-05212-0

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2024

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Cited by 4 publications

References 47 publications

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Validation of a smartphone-compatible MIP-based sensor for bisphenol A determination in wastewater samples

Yarynka,

Honcharenko,

Gorbach

et al. 2024

Anal Bioanal Chem

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Validation of a smartphone-compatible MIP-based sensor for bisphenol A determination in wastewater samples

Yarynka,

Honcharenko,

Gorbach

et al. 2024

Anal Bioanal Chem

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Applications of molecularly imprinted polymers (MIPs) based solid-phase extraction in the field of food analysis

Huang,

Ma,

2024

Reference Module in Chemistry, Molecular Sciences and Chemical Engineering

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Ratiometric Molecularly Imprinted Particle Probes for Reliable Fluorescence Signaling of Carboxylate-Containing Molecules

Sun,

Gawlitza,

Valderrey

et al. 2024

ACS Appl. Mater. Interfaces

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In addition to sensitivity, selectivity, and portability, chemical sensing systems must generate reliable signals and offer modular configurability to address various small molecule targets, particularly in environmental applications. We present a versatile, modular strategy utilizing ratiometric molecularly imprinted particle probes based on BODIPY indicators and dyes for recognition and internal referencing. Our approach employs polystyrene core particles doped with a red fluorescent BODIPY as an internal standard, providing built-in reference for environmental influences. A molecularly imprinted polymer (MIP) recognition shell, incorporating a green-fluorescent BODIPY indicator monomer with a thiourea binding site for carboxylate-containing analytes, is grafted from the core particles in the presence of the analyte as the template. The dual-fluorescent MIP probe detects fexofenadine as the model analyte with a change in green emission signal referenced against a stable red signal, achieving a detection limit of 0.13 μM and a broad dynamic range from 0.16 μM to 1.2 mM, with good discrimination against other antibiotics in acetonitrile. By selecting a versatile dye scaffold and recognition element, this approach can be extended to other carboxylate-containing analytes and/or wavelength combinations, potentially serving as a robust multiplexing platform.

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Molecularly imprinted photopolymers combined with smartphone-based optical sensing for selective detection of bisphenol A in foods

Cited by 4 publications

References 47 publications

Validation of a smartphone-compatible MIP-based sensor for bisphenol A determination in wastewater samples

Validation of a smartphone-compatible MIP-based sensor for bisphenol A determination in wastewater samples

Applications of molecularly imprinted polymers (MIPs) based solid-phase extraction in the field of food analysis

Ratiometric Molecularly Imprinted Particle Probes for Reliable Fluorescence Signaling of Carboxylate-Containing Molecules

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