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Synthesis and Characterization of Imprinted Sorbents

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A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: closed (20 May 2022) | Viewed by 7242

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Special Issue Editor

Dr. Piotr Luliński

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Guest Editor

Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
Interests: molecularly imprinted polymers; solid-phase extraction; sample preparation; magnetic imprinted sorbents; material characterization; drug delivery devices

Special Issue Information

Dear Colleagues,

Major technological developments in the last few decades have introduced novel instrumental techniques into the field of analytical chemistry, enabling us to determine the compounds that occur at very low concentrations. Nevertheless, the presence of interfering compounds in complex samples affected analytical performance. To overcome this problem, new analytical strategies that lower the limits of quantification, improve accuracy, enhance selectivity, and minimize matrix effects are necessary. Those strategies employ the pre-treatment steps to separate selected analytes before analysis. Here, the solid-phase extraction is the most frequently used technique. However, the low selectivity of commercial sorbents has limited its practical application. The attractive alternatives are molecularly imprinted polymers, which are recognized as selective sorbents because of their synthetic process, proceeding in the presence of the template molecule. Various synthetic approaches can produce imprinted sorbents in different formats, such as bulk materials, monoliths, core-shell microspheres, magnetic sorbents, and various nanostructured materials. Their plethora of formats together with their high selectivity and durability, resulted in the unprecedented development of imprinted sorbents, revealing their potential in the sample separation techniques. Along with synthesis, the comprehensive characterization of the morphology, composition, and structure of imprinted sorbents is required before final application. Thus, this Special Issue is a forum for researchers who design imprinted sorbents, characterize them, and elaborate new separation methods using those materials or applying imprinted sorbents for analytical methods, as well as for researchers who evaluate the sorption properties of imprinted sorbents using theoretical analyses.

This Special Issue is focused on current state-of-art and novel trends in the construction, characterization, and application of imprinted sorbents. It is my pleasure to invite you to submit a manuscript to this Special Issue. All types of papers such as short communications, full papers, and reviews are welcome.

Dr. Piotr Luliński
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

molecularly imprinted polymer
ion-imprinted polymer
imprinted sorbent
magnetic susceptible material
core-shell microparticles
imprinted sorption nanostructure
hybrid silica sorbent
composite imprinted material
imprinted nanoconjugates
surface imprinting technique
dual-template imprinting
enantioseparation
chiral sorbent
solid-phase extraction
dispersive solid-phase extraction
microextraction
stir bar sorptive extraction
material characterization
sorbent design
imprinted sorbent application
theoretical analysis
biomedical analysis
environmental analysis
food analysis

Published Papers (3 papers)

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Research

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11 pages, 2284 KiB

Open AccessArticle

Core-Shell Imprinted Particles for Adenovirus Binding

by Sandra Dietl, Paul Walther, Harald Sobek and Boris Mizaikoff

Materials 2021, 14(24), 7692; https://doi.org/10.3390/ma14247692 - 13 Dec 2021

Cited by 1 | Viewed by 1927

Abstract

Virus-imprinted polymers were synthesized via surface imprinting strategies to produce core-shell imprinted particles selective for human adenovirus type 5. High binding affinity of the target virus towards the resulting imprinted layer was confirmed and unspecific binding was reduced in presence of blocking agents, i.e., via bovine serum albumin and skim milk in combination with Tween 20. In addition, the imprinted materials were applied for adenovirus extraction from cell culture supernatants. High levels of virus binding with negligible binding of matrix proteins confirmed the suitability of these materials for binding and extraction of the target virus from complex matrices. Full article

(This article belongs to the Special Issue Synthesis and Characterization of Imprinted Sorbents)

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25 pages, 5297 KiB

Open AccessArticle

Multivariate Assessment of Procedures for Molecularly Imprinted Polymer Synthesis for Pesticides Determination in Environmental and Agricultural Samples

by Mariusz Marć, Marta Bystrzanowska, Katarzyna Pokajewicz and Marek Tobiszewski

Materials 2021, 14(22), 7078; https://doi.org/10.3390/ma14227078 - 22 Nov 2021

Cited by 6 | Viewed by 1609

Abstract

In the case of quantitative and qualitative analysis of pesticides in environmental and food samples, it is required to perform a sample pre-treatment process. It allows to minimalize the impact of interferences on the final results, as well as increase the recovery rate. Nowadays, apart from routinely employed sample preparation techniques such as solid-phase extraction (SPE) or solid-phase microextraction (SPME), the application of molecularly imprinted polymers (MIPs) is gaining greater popularity. It is mainly related to their physicochemical properties, sorption capacity and selectivity, thermo-mechanical resistance, as well as a wide range of polymerization techniques allowing to obtain the desired type of sorption materials, adequate to a specific type of pesticide. This paper targets to summarize the most popular and innovative strategies since 2010, associated with the MIPs synthesis and analytical procedures for pesticides determination in environmental and food samples. Application of multi-criteria decision analysis (MCDA) allows for visualization of the most beneficial analytical procedures in case of changing the priority of each step of analysis (MIPs synthesis, sample preparation process—pesticides extraction, chromatographic analysis) bearing in mind metrological and environmental issues. Full article

(This article belongs to the Special Issue Synthesis and Characterization of Imprinted Sorbents)

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Review

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32 pages, 2859 KiB

Open AccessReview

Imprinting Technology for Effective Sorbent Fabrication: Current State-of-Art and Future Prospects

by Marta Janczura, Piotr Luliński and Monika Sobiech

Materials 2021, 14(8), 1850; https://doi.org/10.3390/ma14081850 - 08 Apr 2021

Cited by 55 | Viewed by 2996

Abstract

In the last 10 years, we have witnessed an extensive development of instrumental techniques in analytical methods for determination of various molecules and ions at very low concentrations. Nevertheless, the presence of interfering components of complex samples hampered the applicability of new analytical strategies. Thus, additional sample pre-treatment steps were proposed to overcome the problem. Solid sorbents were used for clean-up samples but insufficient selectivity of commercial materials limited their utility. Here, the application of molecularly imprinted polymers (MIPs) or ion-imprinted polymers (IIPs) in the separation processes have recently attracted attention due to their many advantages, such as high selectivity, robustness, and low costs of the fabrication process. Bulk or monoliths, microspheres and core-shell materials, magnetically susceptible and stir-bar imprinted materials are applicable to different modes of solid-phase extraction to determine target analytes and ions in a very complex environment such as blood, urine, soil, or food. The capability to perform a specific separation of enantiomers is a substantial advantage in clinical analysis. The ion-imprinted sorbents gained interest in trace analysis of pollutants in environmental samples. In this review, the current synthetic approaches for the preparation of MIPs and IIPs are comprehensively discussed together with a detailed characterization of respective materials. Furthermore, the use of sorbents in environmental, food, and biomedical analyses will be emphasized to point out current limits and highlight the future prospects for further development in the field. Full article

(This article belongs to the Special Issue Synthesis and Characterization of Imprinted Sorbents)

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