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Sorout M, Bhogal S. Current trends of functional monomers and cross linkers used to produce molecularly imprinted polymers for food analysis. Crit Rev Food Sci Nutr 2024:1-21. [PMID: 38907585 DOI: 10.1080/10408398.2024.2365337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2024]
Abstract
Molecularly imprinted polymers (MIPs) as artificial synthetic receptors are in high demand for food analysis due to their inherent molecular recognition abilities. It is common practice to employ functional monomers with basic or acidic groups that can interact with analyte molecules via hydrogen bonds, covalent bonds, and other interactions (π-π, dipole-ion, hydrophobic, and Van der Waals). Therefore, selecting the appropriate functional monomer and cross-linker is crucial for determining how precisely they interact with the template and developing the polymeric network's three-dimensional structure. This study summarizes the advancements made in MIP's functional monomers and cross-linkers for food analysis from 2018 to 2023. The subsequent computational design of MIP has been thoroughly explained. The discussion has concluded with a look at the difficulties and prospects for MIP in food analysis.
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Affiliation(s)
- Mohit Sorout
- Department of Chemistry, Chandigarh University, Mohali, India
| | - Shikha Bhogal
- Department of Chemistry, Chandigarh University, Mohali, India
- University Centre for Research and Development, Chandigarh University, Mohali, India
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2
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Ayari MG, Favetta P, Warszycki D, Vasseur V, Hervé V, Degardin P, Carbonnier B, Si-Tahar M, Agrofoglio LA. Molecularly Imprinted Hydrogels Selective to Ribavirin as New Drug Delivery Systems to Improve Efficiency of Antiviral Nucleoside Analogue: A Proof-of-Concept Study with Influenza A Virus. Macromol Biosci 2021; 22:e2100291. [PMID: 34773718 DOI: 10.1002/mabi.202100291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 11/10/2021] [Indexed: 01/21/2023]
Abstract
This study describes the synthesis and evaluation of different imprinted hydrogels using ribavirin as template molecule. Ribavirin serves as a model molecule because it possesses a broad-spectrum antiviral effect against RNA viruses, which are expected as emerging viruses. The choice of monomers enables to stabilize the pre-polymerization complex and to synthesize biocompatible polymers. Predictive studies as well as experimental works conclude similar results on best ribavirin:monomers ratios. Thus, materials exhibit high selective cavities toward ribavirin. These affinities allow to show release profiles drastically different from the non-imprinted ones at two temperatures. The imprinted materials show a sustained profile able to release antiviral for more than 24 h. The hydrogels obtained are biocompatible with model cells retained, human lung epithelial BEAS-2B cells. Cell viability is excellent and pro-inflammatory response is insignificant when imprinted polymers are incubated with cells. Finally, viral tests carried out on Influenza A infected lung cells show that imprinted delivery systems delivering 1 to 3 µg of antiviral have the same efficiency as a medium containing 30 µg mL-1 of active agent. As a very interesting result, the molecularly imprinted polymers as drug delivery systems allow to increase the local concentration of antiviral, to improve their delivery when its bioavailability is low.
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Affiliation(s)
- Mohamed G Ayari
- ICOA, Univ. Orléans, CNRS UMR 7311, Rue de Chartres, Orléans, 45067, France
| | - Patrick Favetta
- ICOA, Univ. Orléans, CNRS UMR 7311, Rue de Chartres, Orléans, 45067, France
| | - Dawid Warszycki
- Department of Medicinal Chemistry, Institute of Pharmacology, Polish Academy of Sciences (IPPAS), 12 Smetna Street, Kraków, 31-3343, Poland
| | - Virginie Vasseur
- CEPR, Inserm U1100, Univ. Tours, 10 Boulevard Tonnellé, Tours, 37032, France
| | - Virginie Hervé
- CEPR, Inserm U1100, Univ. Tours, 10 Boulevard Tonnellé, Tours, 37032, France
| | - Pierre Degardin
- ICOA, Univ. Orléans, CNRS UMR 7311, Rue de Chartres, Orléans, 45067, France
| | - Benjamin Carbonnier
- ICMPE, CNRS UMR 7182, Université Paris Est, 2-8 rue Henri Dunant, Thiais, 94320, France
| | - Mustapha Si-Tahar
- CEPR, Inserm U1100, Univ. Tours, 10 Boulevard Tonnellé, Tours, 37032, France
| | - Luigi A Agrofoglio
- ICOA, Univ. Orléans, CNRS UMR 7311, Rue de Chartres, Orléans, 45067, France
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3
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Luliński P, Janczura M, Sobiech M, Giebułtowicz J. Magnetic Molecularly Imprinted Nano-Conjugates for Effective Extraction of Food Components-A Model Study of Tyramine Determination in Craft Beers. Int J Mol Sci 2021; 22:9560. [PMID: 34502468 PMCID: PMC8430699 DOI: 10.3390/ijms22179560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 12/16/2022] Open
Abstract
In this paper, magnetic molecularly imprinted nano-conjugates were synthesized to serve as selective sorbents in a model study of tyramine determination in craft beer samples. The molecularly imprinted sorbent was characterized in terms of morphology, structure, and composition. The magnetic dispersive solid phase extraction protocol was developed and combined with liquid chromatography coupled with mass spectrometry to determine tyramine. Ten samples of craft beers were analyzed using a validated method, revealing tyramine concentrations in the range between 0.303 and 126.5 mg L-1. Tyramine limits of detection and quantification were 0.033 mg L-1 and 0.075 mg L-1, respectively. Therefore, the fabricated molecularly imprinted magnetic nano-conjugates with a fast magnetic responsivity and desirable adsorption performance could be an effective tool for monitoring tyramine levels in beverages.
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Affiliation(s)
- Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland; (P.L.); (M.J.)
| | - Marta Janczura
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland; (P.L.); (M.J.)
| | - Monika Sobiech
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland; (P.L.); (M.J.)
| | - Joanna Giebułtowicz
- Department of Bioanalysis and Drugs Analysis, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland;
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Mueller A. A Note about Crosslinking Density in Imprinting Polymerization. Molecules 2021; 26:5139. [PMID: 34500573 PMCID: PMC8434133 DOI: 10.3390/molecules26175139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 11/17/2022] Open
Abstract
Imprinting polymerization is an exciting technique since it leads to specific binding sites, which are the basis of a variety of applications, such as sensors, detectors, and catalysts. The specific binding sites are created using templates and then fixing the structure of the binding site with crosslinking. The literature review of imprinting polymerizations shows that the crosslinking density governs the physical properties of the resulting molecularly imprinted polymer (MIP). It is also a factor governing the capacity and the selectivity of MIPs. Reviewing polymer science data and theory, the crosslinking density commonly used in MIP synthesis is unusually high. The data reviewed here suggest that more research is needed to determine the optimal crosslinking density for MIPs.
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Affiliation(s)
- Anja Mueller
- Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, MI 48859, USA
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5
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Sobiech M, Giebułtowicz J, Luliński P. Application of Magnetic Core-Shell Imprinted Nanoconjugates for the Analysis of Hordenine in Human Plasma-Preliminary Data on Pharmacokinetic Study after Oral Administration. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:14502-14512. [PMID: 33227193 PMCID: PMC7735731 DOI: 10.1021/acs.jafc.0c05985] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/03/2020] [Accepted: 11/07/2020] [Indexed: 05/06/2023]
Abstract
In this paper, we developed and validated a new analytical method to determine the pharmacokinetic profile of hordenine in plasma samples of human volunteers after oral administration of hordenine-rich dietary supplements. For this purpose, a magnetic molecularly imprinted sorbent was fabricated and characterized. The application of a magnetic susceptible material facilitates pretreatment step while working with a highly complex sample, reducing time and costs. An optimized, fast, and reliable separation step was combined with liquid chromatography tandem mass spectrometry, providing an analytical method for analysis of hordenine in human plasma after dietary supplement intake. The method was validated (lower limit of quantification of 0.05 μg/L), enabling the pharmacokinetic profile of hordenine to be determined. The highest concentration of hordenine was noted after 65 ± 14 min, reaching the value of 16.4 ± 7.8 μg/L. The average t1/2 was 54 ± 19 min. The apparent volume of distribution was 6000 ± 2600 L (66 ± 24 L/kg when adjusted for weight).
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Affiliation(s)
- Monika Sobiech
- Department
of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Joanna Giebułtowicz
- Department
of Bioanalysis and Drugs Analysis, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Piotr Luliński
- Department
of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
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Venkataraman AK, Clegg JR, Peppas NA. Polymer Composition Primarily Determines the Protein Recognition Characteristics of Molecularly Imprinted Hydrogels. J Mater Chem B 2020; 8:7685-7695. [PMID: 33456778 PMCID: PMC7807727 DOI: 10.1039/d0tb01627f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Synthetic hydrogels with the ability to recognize and bind target proteins are useful for a number of applications, including biosensing and therapeutic agent delivery. One popular method for fabricating recognitive hydrogels is molecular imprinting. A long-standing hypothesis of the field is that these molecularly imprinted polymers (MIPs) retain the chemical and geometric profile of their protein template, resulting in subsequent ability to recognize the template in solution. Here, we systematically determined the influence of network composition, as well as the identity, amount, and extraction of imprinting templates, on the protein binding of MIPs. Network composition (i.e. the relative number of ionizable and hydrophobic groups) explained the extent of protein adsorption in all cases. The identity and amount of imprinting template, albeit a protein or synthetic polymer (PEG) of similar molecular weight, did not significantly influence the amount of protein bound. While the purification method influenced the extent of template adsorption, it did so by chemically modifying the network (acrylamide hydrolysis, increasing the acid content by up to 21%) and not by voiding occupied MIP pores. Therefore, our results indicate that material composition determines the extent to which MIPs bind template and non-template proteins.
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Affiliation(s)
| | - John R. Clegg
- Department of Biomedical Engineering, University of Texas, Austin, TX, 78712, USA
| | - Nicholas A. Peppas
- Department of Biomedical Engineering, University of Texas, Austin, TX, 78712, USA
- McKetta Department of Chemical Engineering, University of Texas, Austin, TX, 78712, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine University of Texas, Austin, TX, 78705, USA
- Department of Pediatrics, Dell Medical School, Austin, TX, 78712, USA
- Department of Surgery and Perioperative Care, Dell Medical School, Austin, TX, 78712, USA
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas, Austin, TX, 78712, USA
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Sobiech M, Giebułtowicz J, Luliński P. Theoretical and experimental proof for selective response of imprinted sorbent - analysis of hordenine in human urine. J Chromatogr A 2019; 1613:460677. [PMID: 31727352 DOI: 10.1016/j.chroma.2019.460677] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/09/2019] [Accepted: 11/04/2019] [Indexed: 12/25/2022]
Abstract
The objective of this paper was to extend comprehensive theoretical and experimental investigations at the molecular level to identify factors responsible for the high selectivity of imprinted sorbents. This knowledge was utilized in a new analytical strategy devoted to the analysis of hordenine in human urine after beer consumption. Among the various polymeric compositions tested, the most effective material was built up from methacrylic acid and ethylene glycol dimethacrylate (MIP1), showing a satisfactory binding capacity (4.44 ± 0.15 µmol g-1) and high specificity towards hordenine (AF = 5.90). The comprehensive analyses of porosity data and surface measurements revealed differences between imprinted polymers. The characterization of binding sites of MIP1 revealed a heterogeneous population with two values of Kd (2.75 and 370 μmol L-1) and two values of Bmax (1.82 and 99 μmol g-1) for higher and lower affinity respectively. The extensive theoretical analyses of interactions between various analytes and the MIP model cavity showed the highest binding energy for hordenine (ΔEB1 = -175.17 kcal mol-1). The method was validated for selectivity, lowest limit of quantification, calibration curve performance, precision, accuracy, matrix effect, carry-over and stability in urine. Extracts were prepared according to guidelines of the European Medicines Agency. The validation criteria were fulfilled, and the method was satisfactorily applied to urine samples collected prior to, and 2 h after, consumption of 2 L of beer, revealing the presence of hordenine at the mean level of 129 ± 27 ng mL-1. Additionally, ability of the sorbent to purify the urine sample was assessed using flow injection analysis tandem mass spectrometry, for comparison with other extraction techniques.
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Affiliation(s)
- Monika Sobiech
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Joanna Giebułtowicz
- Department of Bioanalysis and Drugs Analysis, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland.
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8
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Woźnica M, Luliński P. Design of selective molecularly imprinted sorbent for the optimized solid-phase extraction of S-pramipexole from the model multicomponent sample of human urine. J Sep Sci 2019; 42:1412-1422. [PMID: 30681270 DOI: 10.1002/jssc.201801101] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 01/15/2019] [Accepted: 01/16/2019] [Indexed: 01/04/2023]
Abstract
The objective of this article was to design the selective molecularly imprinted sorbent dedicated to the solid-phase extraction of S-pramipexole from the complex matrix such as human urine. For that purpose, S-2,6-diamino-4,5,6,7-tetrahydrobenzothiazole was used as the template acting as the structural analog of S-pramipexole and five various monomers were employed in the presence of ethylene glycol dimethacrylate to produce molecularly imprinted polymers. The binding capabilities of resulted polymers revealed that the highest imprinting effect was noted for polymer prepared from the itaconic acid. The comprehensive analysis of morphology and the characterization of binding sites showed not only negligible differences in the extension of surfaces of imprinted and nonimprinted polymers but also higher heterogeneity of binding sites in the imprinted material. Comprehensive optimization of the molecularly imprinted solid-phase extraction allowed to select the most appropriate solvents for loading, washing, and elution steps. Subsequent optimization of mass of sorbent and volumes of solvents allowed to achieve satisfactory total recoveries of S-pramipexole from the model multicomponent real sample of human urine that equals to 91.8 ± 3.2% for imprinted sorbent with comparison to only 37.1 ± 1.1% for Oasis MCX.
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Affiliation(s)
- Marcin Woźnica
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland
| | - Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland
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Wan Y, Wang M, Fu Q, Wang L, Wang D, Zhang K, Xia Z, Gao D. Novel dual functional monomers based molecularly imprinted polymers for selective extraction of myricetin from herbal medicines. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1097-1098:1-9. [DOI: 10.1016/j.jchromb.2018.08.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/12/2018] [Accepted: 08/28/2018] [Indexed: 12/20/2022]
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10
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Development of a validated strategy for the determination of tryptamine in human cerebrospinal fluid in the presence of competitors using molecularly imprinted polymers. J Sep Sci 2017; 40:1824-1833. [DOI: 10.1002/jssc.201601349] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/30/2017] [Accepted: 02/02/2017] [Indexed: 12/20/2022]
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11
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Luliński P, Bamburowicz-Klimkowska M, Dana M, Szutowski M, Maciejewska D. Efficient strategy for the selective determination of dopamine in human urine by molecularly imprinted solid-phase extraction. J Sep Sci 2016; 39:895-903. [DOI: 10.1002/jssc.201501159] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/21/2015] [Accepted: 12/21/2015] [Indexed: 12/23/2022]
Affiliation(s)
- Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy; Medical University of Warsaw; Warsaw Poland
| | | | - Mariusz Dana
- Department of Organic Chemistry, Faculty of Pharmacy; Medical University of Warsaw; Warsaw Poland
| | - Mirosław Szutowski
- Department of Toxicology, Faculty of Pharmacy; Medical University of Warsaw; Warsaw Poland
| | - Dorota Maciejewska
- Department of Organic Chemistry, Faculty of Pharmacy; Medical University of Warsaw; Warsaw Poland
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12
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Molecularly imprinted polymeric micro- and nano-particles for the targeted delivery of active molecules. Future Med Chem 2015; 7:123-38. [PMID: 25686002 DOI: 10.4155/fmc.14.140] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Molecular imprinting (MI) represents a strategy to introduce a 'molecular memory' in a polymeric system obtaining materials with specific recognition properties. MI particles can be used as drug delivery systems providing a targeted release and thus reducing the side effects. The introduction of molecular recognition properties on a polymeric drug carrier represents a challenge in the development of targeted delivery systems to increase their efficiency. This review will summarize the limited number of drug delivery MI particles described in the literature along with an overview of potential solutions for a larger exploitation of MI particles as targeted drug delivery carriers. Molecularly imprinted drug carriers can be considered interesting candidates to significantly improve the efficiency of a controlled drug treatment.
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Henry N, Favetta P, Delépée R, Seigneuret JM, Agrofoglio LA. Synthesis of a molecularly imprinted polymer to isolate glucosamine from plant extracts by an ionic-non-covalent dual approach. Int J Cosmet Sci 2015; 37:196-206. [PMID: 25400098 DOI: 10.1111/ics.12182] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Accepted: 11/06/2014] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The objective of this study was to synthesize a novel glucosamine-imprinted sorbent based on ionic and non-covalent dual approach to purify glucosamine from chicory root extracts. METHODS The synthesis of the molecularly imprinted polymer was optimized in terms of choice of monomers, porogen, cross-linker and initiator to have the best recognition as possible for targeted molecule. The sorbent obtained was characterized by nitrogen sorption (BET), scanning electron microscopy (SEM) and solid-phase extraction (SPE) to plot adsorption isotherms. The selectivity of polymer between glucosamine and interfering salt as ammonium sulphate was calculated. Extraction procedure was optimized in terms of loading, washing and elution solvents, to have the best recovery of glucosamine. Compounds were analysed by HPLC-UV after chemical derivatization. RESULTS The results showed that the optimal conditions of extracting glucosamine on this new type of sorbent were as follows: percolation of plant extract in EtOH/aqueous HCl pH 3, washing of cartridge with water and elution of compound of interest with aqueous acetic acid solution at 5%. The recoveries of glucosamine were around 53% and 70%, from aqueous standard solution and aqueous chicory roots extracts, respectively, on the molecularly imprinted polymer. And, only 11% and 7% of the ammonium sulphate were recovered from standard solution and chicory roots extract, respectively. CONCLUSION The use of the MIP as solid-phase extraction sorbent was able to extract preferentially glucosamine from structural analogues and ammonium salt. Assays on chicory roots extracts were carried out, and the MIP showed good results allowing the transfer methodology at semi-industrial scale for cosmetic companies. The optimized protocol of extraction of glucosamine allowed using only eco-friendly solvents, as ethanol, water and acetic acid.
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Affiliation(s)
- N Henry
- Institut de Chimie Organique et Analytique, UMR CNRS 7311, Université d'Orléans, 45067 Orléans, France
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Whitcombe MJ, Kirsch N, Nicholls IA. Molecular imprinting science and technology: a survey of the literature for the years 2004-2011. J Mol Recognit 2014; 27:297-401. [PMID: 24700625 DOI: 10.1002/jmr.2347] [Citation(s) in RCA: 275] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/28/2013] [Accepted: 12/01/2013] [Indexed: 12/11/2022]
Abstract
Herein, we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004-2011. In total, 3779 references to the original papers, reviews, edited volumes and monographs from this period are included, along with recently identified uncited materials from prior to 2004, which were omitted in the first instalment of this series covering the years 1930-2003. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by sections describing fundamental aspects of molecular imprinting including the development of novel polymer formats. Thereafter, literature describing efforts to apply these polymeric materials to a range of application areas is presented. Current trends and areas of rapid development are discussed.
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Sobiech M, Żołek T, Luliński P, Maciejewska D. A computational exploration of imprinted polymer affinity based on voriconazole metabolites. Analyst 2014; 139:1779-88. [PMID: 24516859 DOI: 10.1039/c3an01721d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The aim of this study was to create a new computational model capable of evaluating the affinity of imprinted materials to the specific target. A 1-(2,4-difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone (L1), the main metabolite of voriconazole (L2)--a modern antifungal drug, was proposed as a template. In a computational analysis of polymerization systems composed of the template, the monomers and the cross-linker molecules the appropriate porogens were simulated. A non-covalent approach for the formation of a polymer matrix from eight functional monomers was employed in the theoretical and experimental studies. The binding affinities towards the template were measured for eight synthesized polymers. The experimental results confirmed that the proposed theoretical model properly showed isopropenylbenzene 1 as the most suitable monomer to synthesize the polymer with the best affinity to L1. The novel computational protocol was more suitable to predict the properties of polymer systems than the simple analysis of template-monomer interactions. On the basis of the polymerization complex P(MC1) (template-isopropenylbenzene 1-cross-linker), the adsorption cavity was modeled and the intermolecular interactions of the template molecule and the other voriconazole metabolites inside the cavity were analyzed to get an insight into the polymer matrix selectivity.
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Affiliation(s)
- M Sobiech
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland.
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Luliński P, Sobiech M, Zołek T, Maciejewska D. A separation of tyramine on a 2-(4-methoxyphenyl)ethylamine imprinted polymer: an answer from theoretical and experimental studies. Talanta 2014; 129:155-64. [PMID: 25127579 DOI: 10.1016/j.talanta.2014.05.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 05/12/2014] [Accepted: 05/18/2014] [Indexed: 10/25/2022]
Abstract
A 2-(4-methoxyphenyl)ethylamine imprinted polymer (MIP) was successfully applied for the selective separation of tyramine. A computational analysis was used to predict the affinity of the polymer matrix towards tyramine and a preliminary experimental evaluation was made for the target analyte. Then the experimental analysis of polymer towards tyramine was continued. The binding sites were characterized with employment of the Langmuir and Freudlich models. After the optimization of solid phase extraction towards tyramine, the most appropriate systems for the extraction steps were chosen: methanol-water 85:15 v/v for the loading and the washing as well as 0.04 M aq. ammonium acetate-methanol 30:70 v/v for the elution steps. The biogenic compounds as tryptamine, serotonin, octopamine, synephrine, and l-tyrosine were used for the selectivity study on the basis of binding capacities of the analytes on the imprinted and the non-imprinted polymers. The theoretical approach to obtained results allowed to explain the adsorption selectivity of the tested polymer. Finally, the complex matrix of bovine serum albumin was used to show the usefulness of imprinted material for bioanalysis. The obtained recoveries showed the superiority of MIP over the commercial sorbent C18. Total recoveries of tyramine from spiked bovine serum albumin sample were determined as: 95±2%, 14±3%, and 1.9±0.4% for the imprinted, non-imprinted, and commercial C18 sorbents, respectively.
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Affiliation(s)
- Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Monika Sobiech
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Teresa Zołek
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Dorota Maciejewska
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland.
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Luliński P, Klejn D, Maciejewska D. 3,3′-Diindolylmethane imprinted polymers: synthesis, characterization and analytical procedure for template isolation from biological matrix. POLYM INT 2013. [DOI: 10.1002/pi.4572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy; Medical University of Warsaw; Banacha 1 02-097 Warsaw Poland
| | - Dorota Klejn
- Department of Organic Chemistry, Faculty of Pharmacy; Medical University of Warsaw; Banacha 1 02-097 Warsaw Poland
| | - Dorota Maciejewska
- Department of Organic Chemistry, Faculty of Pharmacy; Medical University of Warsaw; Banacha 1 02-097 Warsaw Poland
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Luliński P, Maciejewska D. Effect of functional monomers and porogens on morphology, structure and recognition properties of 2-(4-methoxyphenyl)ethylamine imprinted polymers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:1162-9. [DOI: 10.1016/j.msec.2012.12.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 10/09/2012] [Accepted: 12/02/2012] [Indexed: 10/27/2022]
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Zhang T, Liu F, Li K. Evaluation of aminoquinoline-imprinted polymers and the recognition mechanism. J Appl Polym Sci 2013. [DOI: 10.1002/app.39094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Luliński P, Maciejewska D. Effective separation of dopamine from bananas on 2-(3,4-dimethoxyphenyl)ethylamine imprinted polymer. J Sep Sci 2012; 35:1050-7. [PMID: 22589167 DOI: 10.1002/jssc.201100910] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A 2-(3,4-dimethoxyphenyl)ethylamine imprinted polymer (MIP(pt) ) was prepared via the precipitation polymerization together with a nonimprinted polymer (NIP). The morphology of particles was investigated by scanning electron microscopy and the specific surface areas were estimated by methylene blue adsorption (60.5 ± 3.5 and 36.9 ± 1.2 m(2)/g for MIP(pt) and NIP, respectively). The binding experiments were performed to determine the binding capacity of MIP(pt)/NIP particles toward dopamine. Next, the effects of solvents on loading, washing, and eluting steps were examined on solid-phase extraction (SPE). Methanol-water 85:15 v/v (loading step), methanol (washing step), and 0.04 M aqueous ammonium acetate-methanol 30:70 v/v (eluting step) were selected as the most effective systems. Described SPE protocol was successfully applied for separation of dopamine on 2-(3,4-dimethoxyphenyl)ethylamine imprinted particles. Finally, the molecularly imprinted polymer was used for determination of dopamine in spiked banana extract. The total recovery of dopamine from MIP(pt) was equal to 88.5 ± 4.6%, but from NIP was only 12.8 ± 2.3%. The developed material and method were demonstrated to be applicable for the separation of dopamine from bananas. The commercial sorbent C18 was not suitable to such application.
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Affiliation(s)
- Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland
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Henry N, Delépée R, Seigneuret JM, Agrofoglio LA. Synthesis of water-compatible imprinted polymers of in situ produced fructosazine and 2,5-deoxyfructosazine. Talanta 2012; 99:816-23. [DOI: 10.1016/j.talanta.2012.07.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 07/10/2012] [Accepted: 07/15/2012] [Indexed: 10/28/2022]
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Zeng H, Wang Y, Liu X, Kong J, Nie C. Preparation of molecular imprinted polymers using bi-functional monomer and bi-crosslinker for solid-phase extraction of rutin. Talanta 2012; 93:172-81. [DOI: 10.1016/j.talanta.2012.02.008] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 01/30/2012] [Accepted: 02/05/2012] [Indexed: 11/16/2022]
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Dana M, Luliński P, Maciejewska D. Synthesis of homoveratric acid-imprinted polymers and their evaluation as selective separation materials. Molecules 2011; 16:3826-44. [PMID: 21546882 PMCID: PMC6263264 DOI: 10.3390/molecules16053826] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 03/16/2011] [Accepted: 04/28/2011] [Indexed: 11/17/2022] Open
Abstract
A bulk polymerization method was used to easily and efficiently prepare homoveratric acid (3,4-dimethoxyphenylacetic acid)-imprinted polymers from eight basic monomers: 2-vinylpyridine, 4-vinylpyridine, 1-vinylimidazole, N-allylaniline, N-allylpiperazine, allylurea, allylthiourea, and allylamine, in the presence of homoveratric acid as a template in N,N-dimethylformamide as a porogen. The imprinted polymer prepared from allylamine had the highest affinity to the template, showing an imprinting factor of 3.43, and allylamine polymers MIP8/NIP8 were selected for further studies. Their binding properties were analyzed using the Scatchard method. The results showed that the imprinted polymers have two classes of heterogeneous binding sites characterized by two pairs of K(d), B(max) values: K(d)(1) = 0.060 μmol/mL, B(max)(1) = 0.093 μmol/mg for the higher affinity binding sites, and K(d)(2) = 0.455 μmol/mL, B(max)(2) = 0.248 μmol/mg for the lower affinity binding sites. Non-imprinted polymer has only one class of binding site, with K(d) = 0.417 μmol/mL and B(max) = 0.184 μmol/mg. A computational analysis of the energies of the prepolymerization complexes was in agreement with the experimental results. It showed that the selective binding interactions arose from cooperative three point interactions between the carboxylic acid and the two methoxy groups in the template and amino groups in the polymer cavities. Those results were confirmed by the recognition studies performed with the set of structurally related compounds. Allylamine polymer MIP8 had no affinity towards biogenic amines. The obtained imprinted polymer could be used for selective separation of homoveratric acid.
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Affiliation(s)
- Mariusz Dana
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland.
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Zołek T, Luliński P, Maciejewska D. A computational model for selectivity evaluation of 2-(3,4-dimethoxyphenyl)ethylamine (homoveratrylamine) imprinted polymers towards biogenic compounds. Anal Chim Acta 2011; 693:121-9. [PMID: 21504819 DOI: 10.1016/j.aca.2011.03.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 02/04/2011] [Accepted: 03/03/2011] [Indexed: 12/01/2022]
Abstract
A computational model was proposed to evaluate the affinity and selectivity of 2-(3,4-dimethoxyphenyl)ethylamine (homoveratrylamine) imprinted polymers. Four functional monomers: methacrylic acid, 1-vinylimidazole, 4-vinylpyridine, and allylamine were taken into account. Two dielectric constants were used for solvent simulations: a value of ɛ=2.38r(ij) for toluene was used in the analysis of prepolymerization complexes, and a value of ɛ=36r(ij) for methanol-water was used in the investigations of adsorption. Theoretical analysis predicted the highest affinity for the polymer synthesized from methacrylic acid. Experimental results confirmed the finding. The prepolymerization complex formed by homoveratrylamine and four methacrylic acid molecules was used to design the polymer cavity. The selectivity of the polymer was analyzed as a simulation of adsorption of six compounds in the cavity by docking procedure. Selected compounds are structurally related to the template or can be present in biological samples. The designed polymer has high selectivity towards homoveratrylamine. The proposed computational procedure could be used for successful evaluation of the imprinted polymers.
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Affiliation(s)
- Teresa Zołek
- Department of Organic Chemistry, Faculty of Pharmacy, The Medical University of Warsaw, Poland
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