Magnetic molecularly imprinted polymer photocatalysts: synthesis, applications and future perspective

Poonia, Komal; Raizada, Pankaj; Singh, Archana; Verma, Narinder; Ahamad, Tansir; Alshehri, Saad M.; Khan, Aftab Aslam Parwaz; Hussain, Chaudhery Mustansar

doi:10.1016/j.jiec.2022.05.029

Cited by 28 publications

(13 citation statements)

References 96 publications

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“…To overcome this deficiency, materials such as silica oxide (SiO 2 ) and MIP are used to modify the MNP. Magnetic molecular imprinted polymers (MIPs) consist of magnetic materials and non-magnetic polymers with the combined effect of their properties namely, selective recognition and magnetic separation [ 42 ].…”

Section: Synthesis Of Mmipmentioning

confidence: 99%

“…In addition, to compare the selectivity against the targeted template, a non-imprinted magnetic preparation (MNIP) was carried out by following all process steps but without adding template molecules. MNIP also exhibits a strong but nonspecific binding capacity due to the interaction between the template and the polymer [ 42 ].…”

Section: Synthesis Of Mmipmentioning

confidence: 99%

“…In this review, the bulk polymerization synthesis has the advantages of being fast and easy to synthesize, does not require additional solvents or sophisticated instruments and is low cost but has disadvantages. Disadvantages include: long processing time due to grinding and sieving processes, low binding site affinity, low binding site capability during template removal, large particle size and low molding capability [ 42 ].…”

Section: Synthesis Of Mmipmentioning

confidence: 99%

“…Second, the protein conformation is very flexible, which can cause changes during polymerization, so that the final binding site may not match the target analyte with the original structure. In addition, the large size of the protein makes it difficult to remove from the 3D crosslinking polymer, and the binding sites away from the surface are also inaccessible [ 42 ].…”

Section: Synthesis Of Mmipmentioning

confidence: 99%

“…MMIP as a sensor has also been developed and shows advantages over traditional techniques such as chemistry and bio sensing because it has various disadvantages including lack of signal expression ability, longer response time with lower selectivity, and easy denaturation [ 42 ]. The loading of the MIP layer on the nanocomposite surface, together with the incorporation of the fluorescent sensor material, converts the active binding sites into a readable signal.…”

Section: Synthesis Of Mmipmentioning

confidence: 99%

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Factors Affecting the Analytical Performance of Magnetic Molecularly Imprinted Polymers

et al. 2022

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During the last few years, separation techniques using molecular imprinting polymers (MIPs) have been developed, making certain improvements using magnetic properties. Compared to MIP, Magnetic molecularly imprinted polymers (MMIPs) have high selectivity in sample pre-treatment and allow for fast and easy isolation of the target analyte. Its magnetic properties and good extraction performance depend on the MMIP synthesis step, which consists of 4 steps, namely magnetite manufacture, magnetic coating using modified components, polymerization and template desorption. This review discusses the factors that will affect the performance of MMIP as a selective sorbent at each stage. MMIP, using Fe3O4 as a magnetite core, showed strong superparamagnetism; it was prepared using the co-precipitation method using FeCl3·6H2O and FeCl2·H2O to obtain high magnetic properties, using NH4OH solution added for higher crystallinity. In magnetite synthesis, the use of a higher temperature and reaction time will result in a larger nanoparticle size and high magnetization saturation, while a higher pH value will result in a smaller particle size. In the modification step, the use of high amounts of oleic acid results in smaller nanoparticles; furthermore, determining the correct molar ratio between FeCl3 and the shielding agent will also result in smaller particles. The next factor is that the proper ratio of functional monomer, cross-linker and solvent will improve printing efficiency. Thus, it will produce MMIP with high selectivity in sample pre-treatment.

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Section: Synthesis Of Mmipmentioning

confidence: 99%

Section: Synthesis Of Mmipmentioning

confidence: 99%

Section: Synthesis Of Mmipmentioning

confidence: 99%

Section: Synthesis Of Mmipmentioning

confidence: 99%

Section: Synthesis Of Mmipmentioning

confidence: 99%

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Factors Affecting the Analytical Performance of Magnetic Molecularly Imprinted Polymers

et al. 2022

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Magnetic molecularly imprinted polymer for trace pharmaceutical analysis: Preconcentration and the electrochemical determination of sufentanil in biological fluids

Abedi,

Roostaie

2023

Vietnam Journal of Chemistry

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A magnetic molecularly imprinted electrochemical sensor was developed for selective determination of sufentanil (SUF) based on carbon paste electrode (CPE) modified with methacrylic acid‐ethylene glycol dimethacrylate‐coated Fe3O4 nanoparticles (Fe3O4@MAA‐EGDMA NPs). The structural properties, chemical structure, and electrochemical behaviors of the imprinted sensor were characterized by X‐ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FT‐IR), and square wave voltammetry (SWV), respectively. The prepared sensor revealed admirable recognition ability and selectivity for sufentanil. The substantial variables affecting the performance of extraction and SWV were considered and optimized by the batch mode experiment. Under optimal conditions, the method was capable of determining SUF in the range of 1.0×10‐9 to 6.0×10‐8 mol L‐1. The limit of detection (LOD) of sufentanil was found to be 0.2×10‐9 mol L‐1 (n = 10). The accuracy of the method was studied by recovery measurements on spiked samples. Admirable recovery results (96.0‐102.5%) with satisfactory relative standard deviation (RSD) were attained. According to the obtained results, the present method has high selectivity and reliability for the preconcentration and determination of sufentanil in various biological samples, including urine and plasma, without the use of sample pretreatments.

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Design of molecularly imprinted polymers (MIP) using computational methods: A review of strategies and approaches

Mohsenzadeh,

Ratautaite,

Brazys

et al. 2024

WIREs Comput Mol Sci

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This paper focuses on the computationally assisted design of molecularly imprinted polymers (MIP), emphasizing the selected strategies and chosen methods of approach. In summary, this paper provides an overview of the MIP fabrication procedure, focusing on key factors and challenges, where the fabrication of MIP includes a step‐by‐step process with extensive experimental procedures. This brings challenges in optimizing experimental conditions, such as the selection of monomer, cross‐linker, and their relevant molar ratios to the template and solvent. Next, the principles of computational methods are elucidated to explore their potential applicability in solving the challenges. The computational approach can tackle the problems and optimize the MIP's design. Finally, the atomistic, quantum mechanical (QM), and combined methods in the recent research studies are overviewed with stress on strategies, analyses, and results. It is demonstrated that optimization of pre‐polymerization mixture by employing simulations significantly reduces the trial‐and‐error experiments. Besides, higher selectivity and sensitivity of MIP are observed. The polymerization and resulting binding sites by computational methods are considered. Several models of binding sites are formed and analyzed to assess the affinities representing the sensitivity and selectivity of modeled cavities. Combined QM/atomistic methods showed more flexibility and versatility for realistic modeling with higher accuracy. This methodological advancement aligns with the principles of green chemistry, offering cost‐effective and time‐efficient solutions in MIP design.This article is categorized under: Structure and Mechanism > Molecular Structures Structure and Mechanism > Computational Materials Science Molecular and Statistical Mechanics > Molecular Interactions

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Magnetic molecularly imprinted polymer photocatalysts: synthesis, applications and future perspective

Cited by 28 publications

References 96 publications

Factors Affecting the Analytical Performance of Magnetic Molecularly Imprinted Polymers

Factors Affecting the Analytical Performance of Magnetic Molecularly Imprinted Polymers

Magnetic molecularly imprinted polymer for trace pharmaceutical analysis: Preconcentration and the electrochemical determination of sufentanil in biological fluids

Design of molecularly imprinted polymers (MIP) using computational methods: A review of strategies and approaches

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