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

Elhachem, Marie; Cayot, Philippe; Abboud, Maher; Louka, Nicolas; Maroun, Richard G.; Bou-Maroun, Elias

doi:10.3390/antiox10030382

Cited by 9 publications

(4 citation statements)

References 247 publications

(133 reference statements)

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“…Finally, it should be mentioned that, although less applied than spectrophotometric assays, electrochemical assays can also be used to determine the antioxidant capacity of samples, with cyclic voltammetry, differential pulse voltammetry, and square wave voltammetry being the most widely used techniques [79]. In this sense, electrochemical detection combined with molecularly imprinted polymers (MIPs) is an innovative approach for the quick detection of antioxidants [80].…”

Section: Oxygen Radical Absorbance Capacity (Orac)mentioning

confidence: 99%

Recovery of Polyphenols from Agri-Food By-Products: The Olive Oil and Winery Industries Cases

Tapia-Quirós

Montenegro-Landívar

Reig

et al. 2022

Foods

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The production of olive oil and wine are two of the main agri-food economic activities in Southern Europe. They generate large amounts of solid and liquid wastes (e.g., olive pomace, olive mill wastewater, grape pomace, grape stems, wine lees, and wine processing wastewater) that represent a major environmental problem. Consequently, the management of these residues has become a big challenge for these industries, since they are harmful to the environment but rich in bioactive compounds, such as polyphenols. In recent years, the recovery of phenolic compounds has been proposed as a smart strategy for the valorization of these by-products, from a circular economy perspective. This review aims to provide a comprehensive description of the state of the art of techniques available for the analysis, extraction, and purification of polyphenols from the olive mill and winery residues. Thus, the integration and implementation of these techniques could provide a sustainable solution to the olive oil and winery sectors.

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Section: Oxygen Radical Absorbance Capacity (Orac)mentioning

confidence: 99%

Recovery of Polyphenols from Agri-Food By-Products: The Olive Oil and Winery Industries Cases

Tapia-Quirós

Montenegro-Landívar

Reig

et al. 2022

Foods

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“…Sometimes, it polymerizes (AO • + AO • → AO-AO) or gives a non-radical product when it is a diradical ( • AO • → AO’). Therefore, AOs protect the oxidizable species commonly found in pharmaceuticals, paramedical products, cosmetics, and foods [ 6 ]. Particular consideration is given to natural antioxidants, which can be easily found in our nutrition.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, molecularly imprinted silicas (MISs) are synthesized by the sol–gel process, based on two steps: hydrolysis and condensation. The main functional monomers are alkoxysilane molecules, such as (3-Aminopropyl)-triethoxysilane (APTES) and (3-Aminopropyl)-trimethoxysilane (PTMOS) [ 6 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

“…Then, the application of MIPs and their designs have evolved, and they have been used for antioxidant detection in many sectors (drugs, foods, biological fluids, etc.) [ 6 ]. The combination of MIPs with electrochemical techniques, especially voltammetry, has been applied for antioxidant detection, such as caffeic acid in wine, using different types of electrodes.…”

Section: Introductionmentioning

confidence: 99%

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Combination of Screen-Printed Carbon Electrode and Molecularly Imprinted Polymers for the Selective Determination of Phenolic Compounds in Wine

et al. 2022

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Caffeic acid (CA) is an efficient antioxidant found in wine and in plants and can be extracted from the by-products of the food industry. A molecularly imprinted polymer specific to caffeic acid (CA-MIP) was prepared by radical polymerization using N-phenylacrylamide as the functional monomer, ethylene glycol dimethacrylate as the cross-linker, and azobisisobutyronitrile as the initiator, in the presence of CA as the template molecule. The rebinding activities between the polymers and CA were promoted by an indirect method and characterized by cyclic voltammetry (CV) using a screen-printed carbon electrode (SPCE). It is a fast method, which only requires simple and portable instrumentation. The polymer showed a high selectivity toward CA and a good repeatability. CA-MIP was then applied in wine samples spiked with CA, and the results were compared to those obtained by a chromatographic method. With a limit of detection of 0.06 mM in wine, the recovery values confirmed that the method is suitable for further applications.

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Advances in the selection of functional monomers for molecularly imprinted polymers: A review

Niu,

Du,

et al. 2024

J of Separation Science

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Molecularly imprinted polymers, a type of special polymer materials, are widely used in biosensing and other fields due to their ability to specifically recognize target molecules, often called “artificial receptors.”. Nowadays, researchers are constantly exploring new design and synthesis methods for molecularly imprinted materials to improve the selectivity and sensitivity of molecularly imprinted materials. Among them, the selection of functional monomers has attracted great attention. This review comprehensively analyzes and discusses the selection methods of functional monomers. The most commonly used functional monomers among different types of templates are screened based on the structural properties of the template molecules, including the selection of functional monomers among ion‐imprinted polymers, protein‐imprinted polymers, and bacterial imprinted polymers. The rich binding sites and functional group types of multifunctional monomers are also highlighted to advance the development of molecular imprinting technology. The article further explores the current challenges and prospects in the selection of functional monomers and emphasizes multiplex experiments and computer simulations as important directions for future research. This review provides comprehensive information and constructive guidelines for researchers in selecting functional monomers in areas such as analytical chemistry and biosensors.

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

Cited by 9 publications

References 247 publications

Recovery of Polyphenols from Agri-Food By-Products: The Olive Oil and Winery Industries Cases

Recovery of Polyphenols from Agri-Food By-Products: The Olive Oil and Winery Industries Cases

Combination of Screen-Printed Carbon Electrode and Molecularly Imprinted Polymers for the Selective Determination of Phenolic Compounds in Wine

Advances in the selection of functional monomers for molecularly imprinted polymers: A review

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