An integrated carbon entrapped molecularly imprinted polymer (MIP) electrode for voltammetric detection of resveratrol in wine

Mugo, Samuel M.; Edmunds, Benjamin; Berg, Darren; Gill, Navpreet

doi:10.1039/c5ay01799h

Cited by 25 publications

(6 citation statements)

References 43 publications

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“…Notably, the peak current of DMIP/MXene/GE (curve c) was slightly larger than that of SMIP/MXene/GE (curve d) but much higher than that of NIP/MXene/GE (curve e). This was because the DMIP had a more irregular morphology than SMIP due to the addition of α-CD (Figure ), and compared to NIP, the formation of imprinted cavities in DMIP rendered more channels for the probes to arrive at the surface of the electrode . Nevertheless, when the DMIP/MXene/GE was incubated in the solution containing AR21 (0.5 and 25 μg·mL –1 ), the peak currents remarkably decreased (curves f and g), attributed to the recombination of AR21 molecules within the binding cavities, thereby impeding the redox reaction of the probe.…”

Section: Resultsmentioning

confidence: 99%

Molecularly Imprinted Electrochemical Sensor Based on α-Cyclodextrin Inclusion Complex and MXene Modification for Highly Sensitive and Selective Detection of Alkylresorcinols in Whole Wheat Foods

Wen,

Wang,

Gong

et al. 2024

J. Agric. Food Chem.

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Authenticating whole wheat foods poses a significant challenge for both the grain industry and consumers. Alkylresorcinols (ARs), serving as biomarkers of whole wheat, play a crucial role in assessing the authenticity of whole wheat foods. Herein, we introduce a novel molecularly imprinted electrochemical sensor with modifications involving a molecularly imprinted polymer (MIP) and MXene nanosheets, enabling highly sensitive and selective detection of ARs. Notably, we specifically chose 5heneicosylresorcinol (AR21), the predominant homologue in whole wheat, as the template molecule. α-Cyclodextrin and acrylamide served as dual functional monomers, establishing a robust multiple interaction between the MIP and AR21. As a result, the sensor exhibited a wide linear range of 0.005 to 100 μg•mL −1 and a low detection limit of 2.52 ng•mL −1 , demonstrating exceptional selectivity and stability. When applied to commercial whole wheat foods, the assay achieved satisfactory recoveries and accuracy, strongly validating the practicality and effectiveness of this analytical technique.

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Section: Resultsmentioning

confidence: 99%

Molecularly Imprinted Electrochemical Sensor Based on α-Cyclodextrin Inclusion Complex and MXene Modification for Highly Sensitive and Selective Detection of Alkylresorcinols in Whole Wheat Foods

Wen,

Wang,

Gong

et al. 2024

J. Agric. Food Chem.

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“…It had a detection limit of 20 µg/L with good linear standard addition calibrations with R 2 = 0.99 for concentrations between 0.1 and 5 mg/L. Compared to the conventional carbon MIP composite electrode, the CEMIP was found to be more sensitive due to the accessibility of the resveratrol cavities with a more efficient electron transfer due to their thin layer design [ 241 ].…”

Section: Electrochemistry Molecular Imprinting and Antioxidantsmentioning

confidence: 99%

The Importance of Developing Electrochemical Sensors Based on Molecularly Imprinted Polymers for a Rapid Detection of Antioxidants

et al. 2021

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This review aims to pin out the importance of developing a technique for rapid detection of antioxidants, based on molecular imprinting techniques. It covers three major areas that have made great progress over the years in the field of research, namely: antioxidants characterization, molecular imprinting and electrochemistry, alone or combined. It also reveals the importance of bringing these three areas together for a good evaluation of antioxidants in a simple or complex medium, based on selectivity and specificity. Although numerous studies have associated antioxidants with molecular imprinting, or antioxidants with electrochemistry, but even electrochemistry with molecular imprinting to valorize different compounds, the growing prominence of antioxidants in the food, medical, and paramedical sectors deserves to combine the three areas, which may lead to innovative industrial applications with satisfactory results for both manufacturers and consumers.

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“…For example, it could play a potential protective role against cardiovascular diseases [6]. RESV has several biological and pharmacological effects including anticancer, antiinflammatory, cardio-protective and antioxidant activities [7,8]. Also, its beneficial effects on diseases related to age, such as type two diabetes, cardiovascular diseases, cancer, and neurological diseases, are of great interest [5].…”

Section: Scheme 1 Chemical Structure Of Trans-resvmentioning

confidence: 99%

Voltammetric determination of resveratrol using poly(l-phenylalanine)-modified gold electrode

Güngör

Hassine

Burç

et al. 2020

Maced. J. Chem. Chem. Eng.

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In this study, we investigated the electrochemical modification of a gold electrode using poly(L-phenylalanine) and its applicability for the quantification of resveratrol (RESV). The gold electrode was modified with L-phenylalanine employing cyclic voltammetry (CV) in aqueous solution. The detection of RESV with the modified electrode was investigated by square wave voltammetry (SWV) in a phosphate buffer solution (PBS) (pH = 1.2). The analytical calibration curve for RESV showed a linear response with concentration in the oxidation peak current range from 50 to 1000 µM, with a limit of detection (LOD) of 35.16 µM and limit of quantitation (LOQ) of 105.5 µM. The application of the prepared electrochemical sensor was carried out with a standard addition method in red wine samples.

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An integrated carbon entrapped molecularly imprinted polymer (MIP) electrode for voltammetric detection of resveratrol in wine

Abstract: Depiction of a voltammetric MIP sensor for resveratrol analysis in wine.

Cited by 25 publications

References 43 publications

Molecularly Imprinted Electrochemical Sensor Based on α-Cyclodextrin Inclusion Complex and MXene Modification for Highly Sensitive and Selective Detection of Alkylresorcinols in Whole Wheat Foods

Molecularly Imprinted Electrochemical Sensor Based on α-Cyclodextrin Inclusion Complex and MXene Modification for Highly Sensitive and Selective Detection of Alkylresorcinols in Whole Wheat Foods

The Importance of Developing Electrochemical Sensors Based on Molecularly Imprinted Polymers for a Rapid Detection of Antioxidants

Voltammetric determination of resveratrol using poly(l-phenylalanine)-modified gold electrode

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