Frontiers in ion imprinting of alkali- and alkaline-earth metal ions – Recent advancements and application to environmental, food and biomedical analysis

Budnicka, Monika; Sobiech, Monika; Kolmas, Joanna; Luliński, Piotr

doi:10.1016/j.trac.2022.116711

Cited by 12 publications

(7 citation statements)

References 105 publications

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“…It was found that the compounds, possessing a single di-silane unit, could form stable complexes with s-block metal salts, utilizing strong tetrel bonds, with comparable coordination ability to organic crown ethers [ 112 , 113 ]. Those compounds can be considered extremely interesting for ion-imprinted materials, providing an alternative to ion-imprinted organic polymers [ 114 ].…”

Section: Brief Outlook Of Chemistry Of Siloxanesmentioning

confidence: 99%

A Fusion of Molecular Imprinting Technology and Siloxane Chemistry: A Way to Advanced Hybrid Nanomaterials

2023

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Molecular imprinting technology is a well-known strategy to synthesize materials with a predetermined specificity. For fifty years, the “classical” approach assumed the creation of “memory sites” in the organic polymer matrix by a template molecule that interacts with the functional monomer prior to the polymerization and template removal. However, the phenomenon of a material’s “memory” provided by the “footprint” of the chemical entity was first observed on silica-based materials nearly a century ago. Through the years, molecular imprinting technology has attracted the attention of many scientists. Different forms of molecularly imprinted materials, even on the nanoscale, were elaborated, predominantly using organic polymers to induce the “memory”. This field has expanded quickly in recent years, providing versatile tools for the separation or detection of numerous chemical compounds or even macromolecules. In this review, we would like to emphasize the role of the molecular imprinting process in the formation of highly specific siloxane-based nanomaterials. The distinct chemistry of siloxanes provides an opportunity for the facile functionalization of the surfaces of nanomaterials, enabling us to introduce additional properties and providing a way for vast applications such as detectors or separators. It also allows for catalyzing chemical reactions providing microreactors to facilitate organic synthesis. Finally, it determines the properties of siloxanes such as biocompatibility, which opens the way to applications in drug delivery and nanomedicine. Thus, a brief outlook on the chemistry of siloxanes prior to the discussion of the current state of the art of siloxane-based imprinted nanomaterials will be provided. Those aspects will be presented in the context of practical applications in various areas of chemistry and medicine. Finally, a brief outlook of future perspectives for the field will be pointed out.

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Section: Brief Outlook Of Chemistry Of Siloxanesmentioning

confidence: 99%

A Fusion of Molecular Imprinting Technology and Siloxane Chemistry: A Way to Advanced Hybrid Nanomaterials

2023

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“…Though many reviews of MIPs about specific aspects have been reported, there are few reviews about the classification, preparation, and application [ 13 , 14 , 15 , 16 , 17 , 18 , 19 ]. With the rapid development and application of new MIPs, now is an appropriate time to summarize the recent progress [ 20 , 21 , 22 , 23 , 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Application Progress of Imprinted Polymers

et al. 2023

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Due to the specific recognition performance, imprinted polymers have been widely investigated and applied in the field of separation and detection. Based on the introduction of the imprinting principles, the classification of imprinted polymers (bulk imprinting, surface imprinting, and epitope imprinting) are summarized according to their structure first. Secondly, the preparation methods of imprinted polymers are summarized in detail, including traditional thermal polymerization, novel radiation polymerization, and green polymerization. Then, the practical applications of imprinted polymers for the selective recognition of different substrates, such as metal ions, organic molecules, and biological macromolecules, are systematically summarized. Finally, the existing problems in its preparation and application are summarized, and its prospects have been prospected.

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“…38,39 On the one hand, ion imprinting technology is used to prepare ion-imprinted polymers (IIPs) with precise size, shape, and function of recognition sites based on enzyme−substrate and antigen− antibody interactions developed in nature to enable specific recognition of target ions in complex environments. 40,41 Due to the advantages of simple preparation, fixed hole size, fast adsorption rates, high selectivity, strong regeneration ability, and good environmental stability, they are widely used in solidphase extraction, membrane separation, and sensors for metal ions. 42 On the other hand, the yolk−shell nanostructures confer good performance as ideal carriers and nanoreactors due to their large void space and specific surface area.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The structure–property relationship of adsorbents can provide useful guidance for designing and developing potential adsorbents. , The exploration of high-performance adsorbents is the key to improving the coefficient of performance by adjusting the number and accuracy of identification sites and the pore structure of adsorbents. , On the one hand, ion imprinting technology is used to prepare ion-imprinted polymers (IIPs) with precise size, shape, and function of recognition sites based on enzyme–substrate and antigen–antibody interactions developed in nature to enable specific recognition of target ions in complex environments. , Due to the advantages of simple preparation, fixed hole size, fast adsorption rates, high selectivity, strong regeneration ability, and good environmental stability, they are widely used in solid-phase extraction, membrane separation, and sensors for metal ions . On the other hand, the yolk–shell nanostructures confer good performance as ideal carriers and nanoreactors due to their large void space and specific surface area. − In particular, the presence of cavities not only allows maximum exposure of the active site for effective utilization but also accelerates molecular or ion transfer, and the shell acts as a protection against agglomeration and loss of core material. , In addition, magnetic nanorods are regarded as one of the most promising adsorbent carriers because of their synergetic characteristics of self-stirring and magnetic separation, which not only reduce the solubility loss of the adsorbent but also significantly promote the mass transfer and efficiency of the adsorption process. − As a consequence, based on these advantages, the construction of IIPs with a yolk–shell nanostructure on the surface of magnetic nanorods will significantly improve the performance of the adsorbent.…”

Section: Introductionmentioning

confidence: 99%

Rapid and Selective Gold Stripping from Electronic Waste with Yolk–Shell-Structured Ion-Imprinted Magnetic Mesoporous Nanorobots for Efficient Water Decontamination

Pan

Liu

Luo

et al. 2023

ACS Sustainable Chem. Eng.

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Green, efficient and sustainable treatment of secondary resources such as electronic waste (e-waste) has significant strategic, economic and environmental value for the future social development, but it remains a serious task. Here, an intelligent yolk–shell-structured ion-imprinted magnetic mesoporous nanorobot (MMNR-IIP-YS) was assessed for rapid and selective gold stripping from leaching solutions from e-waste leachates and employed for water decontamination by targeting organic contaminants. MMNR-IIP-YS exhibited a competitive adsorption capacity (65.01 mg g–1) which was 2.69 times that of the non-imprinted polymer (24.16 mg g–1) at 298 K and possesses superior adsorption rate, excellent selectivity, long-term stability, and recycling ability. Interestingly, a closed-loop miniplant was established for sustainable treatment of e-waste, revealing that MMNR-IIP-YS was capable of extracting 98.51% of gold from actual waste leachates and showing efficient and stable degradation efficiency of toxic organics and dyes. These findings have the potential for application in industrial-scale treatment of e-waste and suggest an appealing strategy based on self-propelled nanorobots for future development of sustainable waste utilization systems.

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Frontiers in ion imprinting of alkali- and alkaline-earth metal ions – Recent advancements and application to environmental, food and biomedical analysis

Cited by 12 publications

References 105 publications

A Fusion of Molecular Imprinting Technology and Siloxane Chemistry: A Way to Advanced Hybrid Nanomaterials

A Fusion of Molecular Imprinting Technology and Siloxane Chemistry: A Way to Advanced Hybrid Nanomaterials

Preparation and Application Progress of Imprinted Polymers

Rapid and Selective Gold Stripping from Electronic Waste with Yolk–Shell-Structured Ion-Imprinted Magnetic Mesoporous Nanorobots for Efficient Water Decontamination

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