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Muñoz AM, Orozco VH, Hoyos LM, Giraldo LF, Pérez CA. Rational Design of Molecularly Imprinted Polymers for Curcuminoids Binding: Computational and Experimental Approaches for the Selection of Functional Monomers. J Chem Inf Model 2024; 64:5127-5139. [PMID: 38888100 DOI: 10.1021/acs.jcim.4c00775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Molecularly imprinted polymers (MIPs) have emerged as bespoke materials with versatile molecular applications. In this study, we propose a proof of concept for a methodology employing molecular dynamics (MD) simulations to guide the selection of functional monomers for curcuminoid binding in MIPs. Curcumin, demethoxycurcumin, and bisdemethoxycurcumin are phenolic compounds widely employed as spices, pigments, additives, and therapeutic agents, representing the three main curcuminoids of interest. Through MD simulations, we investigated prepolymerization mixtures composed of various functional monomers, including acrylamide (ACA), acrylic acid (AA), methacrylic acid (MAA), and N-vinylpyrrolidone (NVP), with ethylene glycol dimethacrylate (EGDMA) as the cross-linker and acetonitrile as the solvent. Curcumin was selected as the template molecule due to its structural similarity to the other curcuminoids. Notably, the prepolymerization mixture containing NVP as the functional monomer demonstrated superior molecular recognition capabilities toward curcumin. This observation was supported by higher functional monomer molecules surrounding the template, a lower total nonbonded energy between the template and monomer, and a greater number of hydrogen bonds in the aggregate. These findings suggest a stronger affinity between the functional monomer NVP and the template. We synthesized, characterized, and conducted binding tests on the MIPs to validate the MD simulation results. The experimental binding tests confirmed that the MIP-NVP exhibited higher binding capacity. Consequently, based on MD simulations, our computational methodology effectively guided the selection of the functional monomer, leading to MIPs with binding capacity for curcuminoids. The outcomes of this study provide a valuable reference for the rational design of MIPs through MD simulations, facilitating the selection of components for MIPs. This computational approach holds the potential for extension to other templates, establishing a robust methodology for the rational design of MIPs.
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Affiliation(s)
- Ana M Muñoz
- Laboratorio de Investigación en Polímeros (LIPOL), Instituto de Química, Universidad de Antioquia, 050010 Medellín, Colombia
| | - Víctor H Orozco
- Laboratorio de Investigación en Polímeros (LIPOL), Instituto de Química, Universidad de Antioquia, 050010 Medellín, Colombia
| | - Lina M Hoyos
- Grupo de Investigación Biología de Sistemas, Escuela de Ciencias de la Salud, Universidad Pontificia Bolivariana, 050031 Medellín, Colombia
| | - Luis F Giraldo
- Laboratorio de Investigación en Polímeros (LIPOL), Instituto de Química, Universidad de Antioquia, 050010 Medellín, Colombia
| | - Cesar A Pérez
- Laboratorio de Investigación en Polímeros (LIPOL), Instituto de Química, Universidad de Antioquia, 050010 Medellín, Colombia
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Molecularly-Imprinted SERS: A Potential Method for Bioanalysis. Sci Pharm 2022. [DOI: 10.3390/scipharm90030054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The most challenging step in developing bioanalytical methods is finding the best sample preparation method. The matrix interference effect of biological sample become a reason of that. Molecularly imprinted SERS become a potential analytical method to be developed to answer this challenge. In this article, we review recent progress in MIP SERS application particularly in bioanalysis. Begin with the explanation about molecular imprinting technique and component, SERS principle, the combination of MIP SERS, and follow by various application of MIP SERS for analysis. Finally, the conclusion and future perspective were also discussed.
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García Y, Vera M, Giraldo JD, Garrido-Miranda K, Jiménez VA, Urbano BF, Pereira ED. Microcystins Detection Methods: A Focus on Recent Advances Using Molecularly Imprinted Polymers. Anal Chem 2021; 94:464-478. [PMID: 34874146 DOI: 10.1021/acs.analchem.1c04090] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yadiris García
- Departamento de Química Analítica e Inorgánica Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, 4030000 Concepción, Chile
| | - Myleidi Vera
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, 4030000 Concepción, Chile
| | - Juan D Giraldo
- Instituto de Acuicultura, Universidad Austral de Chile, Sede Puerto Montt, Los Pinos s/n Balneario Pelluco, 5480000 Puerto Montt, Chile
| | - Karla Garrido-Miranda
- Center of Waste Management and Bioenergy, Scientific and Technological Bioresource Nucleus, BIOREN-UFRO, Universidad de La Frontera, P.O. Box 54-D, 4811230 Temuco, Chile
| | - Verónica A Jiménez
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano, 4260000 Talcahuano, Chile
| | - Bruno F Urbano
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, 4030000 Concepción, Chile
| | - Eduardo D Pereira
- Departamento de Química Analítica e Inorgánica Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, 4030000 Concepción, Chile
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Elucidating doxycycline loading and release performance of imprinted hydrogels with different cross-linker concentrations: a computational and experimental study. JOURNAL OF POLYMER RESEARCH 2021. [PMCID: PMC8494458 DOI: 10.1007/s10965-021-02740-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Effective non-covalent molecular imprinting on a polymer depends on the extent of non-bonded interactions between the template and other molecules before polymerization. Here, we first determine functional monomers that can yield a doxycycline-imprinted hydrogel based on the hydrogen bond interactions at the prepolymerization step, revealed by molecular dynamics (MD) simulations, molecular docking, and simulated annealing methods. Then, acrylic acid (AA)-based doxycycline (DOX) imprinted (MIP) and non-imprinted (NIP) hydrogels are synthesized in cross-linker ethylene glycol dimethacrylate (EGDMA) ratios of 1.0, 1.5, 2.0, and 3.0 mol%. Here, molecularly imprinted polymer with 3.0 mol% EGDMA has the highest imprinting factor (1.58) and best controlled drug release performance. At this point, full-atom MD simulations of DOX–AA solutions at different EGDMA concentrations reveal that AA and EGDMA compete to interact with DOX. However, at 3.0 mol% EGDMA, AA attains numerous stable hydrogen bond interactions with the drug. This study demonstrates that the concentration of the cross-linker and functional monomer can be adjusted to increase the success of imprinting, where the interplay between these two parameters can be successfully revealed by MD simulations.
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Martín-Esteban A. Green molecularly imprinted polymers for sustainable sample preparation. J Sep Sci 2021; 45:233-245. [PMID: 34562063 DOI: 10.1002/jssc.202100581] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/18/2021] [Accepted: 09/19/2021] [Indexed: 12/21/2022]
Abstract
The use of molecularly imprinted polymers in sample preparation as selective sorbent materials has received great attention during the last years leading to analytical methods with unprecedented selectivity. However, with the progressive implementation of Green Analytical Chemistry principles, it is necessary to critically review the greenness of synthesis and further use of molecularly imprinted polymers in sample preparation. Accordingly, in the present review, the different steps and strategies for the preparation of molecularly imprinted polymers, the used reagents, as well as their incorporation to microextraction techniques are reviewed from a green perspective and recent alternatives to make the use of molecularly imprinted polymers more sustainable are provided.
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Affiliation(s)
- Antonio Martín-Esteban
- Departamento de Medio Ambiente y Agronomía, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria-Consejo Superior de Investigaciones Científicas (INIA-CSIC), Madrid, Spain
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Nicholls IA, Golker K, Olsson GD, Suriyanarayanan S, Wiklander JG. The Use of Computational Methods for the Development of Molecularly Imprinted Polymers. Polymers (Basel) 2021; 13:2841. [PMID: 34502881 PMCID: PMC8434026 DOI: 10.3390/polym13172841] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/16/2021] [Accepted: 08/19/2021] [Indexed: 12/29/2022] Open
Abstract
Recent years have witnessed a dramatic increase in the use of theoretical and computational approaches in the study and development of molecular imprinting systems. These tools are being used to either improve understanding of the mechanisms underlying the function of molecular imprinting systems or for the design of new systems. Here, we present an overview of the literature describing the application of theoretical and computational techniques to the different stages of the molecular imprinting process (pre-polymerization mixture, polymerization process and ligand-molecularly imprinted polymer rebinding), along with an analysis of trends within and the current status of this aspect of the molecular imprinting field.
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Affiliation(s)
- Ian A. Nicholls
- Bioorganic & Biophysical Chemistry Laboratory, Linnaeus University Centre for Biomaterials Chemistry, Department of Chemistry & Biomedical Sciences, Linnaeus University, SE-391 82 Kalmar, Sweden; (K.G.); (G.D.O.); (S.S.); (J.G.W.)
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García Y, Úsuga BA, Campos CH, Alderete JB, Jiménez VA. NanoMIPs Design for Fucose and Mannose Recognition: A Molecular Dynamics Approach. J Chem Inf Model 2021; 61:2048-2061. [PMID: 33784106 DOI: 10.1021/acs.jcim.0c01446] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Nanoscale molecularly imprinted polymers (nanoMIPs) are powerful molecular recognition tools with broad applications in the diagnosis, prognosis, and treatment of complex diseases. In this work, fully atomistic molecular dynamics (MD) simulations are used to assist the design of nanoMIPs with recognition capacity toward l-fucose and d-mannose as prototype disease biomarkers. MD simulations were conducted on prepolymerization mixtures containing different molar ratios of the monomers N-isopropylacrylamide (NIPAM), methacrylamide (MAM), and (4-acrylamidophenyl)(amino)methaniminium acetate (AB) and fixed molar ratios of the cross-linker ethylene glycol dimethacrylate (EGDMA) in explicit acetonitrile as the porogenic solvent. Prepolymerization mixtures containing ternary mixtures of NIPAM (50%), MAM (25%), and AB (25%) exhibit the best imprinting potential for both l-fucose and d-mannose, as they maximize (i) the stability of template-monomer plus template-cross-linker interactions, (ii) the number of functional monomers plus cross-linkers organized around the template, and (iii) the number of hydrogen bonds participating in template recognition. The studied prepolymerization mixtures exhibit an overall increased recognition capacity toward d-mannose over l-fucose, which is attributed to the higher hydrogen-bonding capacity of the former template. Our results are valuable to guide the synthesis of efficient nanoMIPs for sugar recognition and provide a computational framework extensible to any other template, monomer, or cross-linker combination, thus constituting a promising strategy for the rational design of molecularly imprinted materials.
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Affiliation(s)
- Yadiris García
- Instituto de Química de Recursos Naturales, Universidad de Talca, Avenida Lircay S/N, Talca, Chile 3460000
| | - Brandon A Úsuga
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano 7100, Talcahuano, Chile 4300866
| | - Cristian H Campos
- Departamento de Físico-Química, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción, Chile 4070371
| | - Joel B Alderete
- Instituto de Química de Recursos Naturales, Universidad de Talca, Avenida Lircay S/N, Talca, Chile 3460000
| | - Verónica A Jiménez
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano 7100, Talcahuano, Chile 4300866
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Olsson GD, Wiklander JG, Nicholls IA. Using Molecular Dynamics in the Study of Molecularly Imprinted Polymers. Methods Mol Biol 2021; 2359:241-268. [PMID: 34410675 DOI: 10.1007/978-1-0716-1629-1_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Molecular dynamics (MD) simulations of prepolymerization mixtures can provide detailed insights concerning the molecular-level mechanisms underlying the performance of molecularly imprinted polymers (MIPs) and can be used for the in silico screening of candidate polymer systems. Here, we describe the use of MD simulations of all-atom, all-component MIP prepolymerization mixtures and procedures for the evaluation of the simulation data using the Amber simulation software suite.
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Affiliation(s)
- Gustaf D Olsson
- Bioorganic & Biophysical Chemistry Laboratory, Department of Chemistry & Biomedical Sciences, Centre for Biomaterials Chemistry, Linnaeus University, Kalmar, Sweden
| | - Jesper G Wiklander
- Bioorganic & Biophysical Chemistry Laboratory, Department of Chemistry & Biomedical Sciences, Centre for Biomaterials Chemistry, Linnaeus University, Kalmar, Sweden
| | - Ian A Nicholls
- Bioorganic & Biophysical Chemistry Laboratory, Department of Chemistry & Biomedical Sciences, Centre for Biomaterials Chemistry, Linnaeus University, Kalmar, Sweden.
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Nagy-Szakolczai A, Sváb-Kovács A, Krezinger A, Tóth B, Nyulászi L, Horvai G. The molecular imprinting effect of propranolol and dibenzylamine as model templates: Binding strength and selectivity. Anal Chim Acta 2020; 1125:258-266. [PMID: 32674772 DOI: 10.1016/j.aca.2020.05.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 05/04/2020] [Accepted: 05/26/2020] [Indexed: 10/24/2022]
Abstract
Recent studies have shown anomalies with the most studied non-covalent molecularly imprinted polymer, the propranolol imprinted one. This imprinted polymer, like many others, binds more template than the non-imprinted control polymer, but its selectivity in template adsorption is only slightly or not at all improved by imprinting, depending on the compound compared. The reasons for this anomaly are discovered here. Simple experiments show that acid homoassociation in the prepolymerisation complex is the likely cause of the anomaly. The specific conductivity of prepolymerization mixtures at different functional monomer to template ratios follows a pattern observed in homoassociating systems. Analysis of the optimal prepolymerization mixture shows that on average two molecules of the functional monomer are complexed to the basic template, even if the template lacks any other hydrogen bonding functional group than the amino group. Molecular modeling calculations provide the structure and stability of the homoassociated prepolymerization complexes. These results lead to a plausible interpretation of the anomaly, which may not be unique for the propranolol imprinted polymer, but may affect all imprinted polymers made for basic templates by using acidic functional monomers. The analytical applications of the new imprinting model are demonstrated.
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Affiliation(s)
- Anett Nagy-Szakolczai
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellert Ter 4., H-1111, Budapest, Hungary
| | - Anikó Sváb-Kovács
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellert Ter 4., H-1111, Budapest, Hungary
| | - Anikó Krezinger
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellert Ter 4., H-1111, Budapest, Hungary
| | - Blanka Tóth
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellert Ter 4., H-1111, Budapest, Hungary.
| | - László Nyulászi
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellert Ter 4., H-1111, Budapest, Hungary; MTA-BME Computation Driven Chemistry Research Group, Szent Gellert Ter 4., H-1111, Budapest, Hungary
| | - George Horvai
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellert Ter 4., H-1111, Budapest, Hungary.
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Ndizeye N, Suriyanarayanan S, Nicholls IA. Polymer synthesis in non-ionic deep eutectic solvents. Polym Chem 2019. [DOI: 10.1039/c9py01039d] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acetamide- and urea-derivative based non-ionic deep eutectic solvents in polymer synthesis.
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Affiliation(s)
- Natacha Ndizeye
- Bioorganic & Biophysical Chemistry Laboratory
- Centre for Biomaterials Chemistry
- Department of Chemistry & Biomedical Sciences
- Linnaeus University
- SE-391 82 Kalmar
| | - Subramanian Suriyanarayanan
- Bioorganic & Biophysical Chemistry Laboratory
- Centre for Biomaterials Chemistry
- Department of Chemistry & Biomedical Sciences
- Linnaeus University
- SE-391 82 Kalmar
| | - Ian A. Nicholls
- Bioorganic & Biophysical Chemistry Laboratory
- Centre for Biomaterials Chemistry
- Department of Chemistry & Biomedical Sciences
- Linnaeus University
- SE-391 82 Kalmar
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Nagy-Szakolczai A, Dorkó Z, Tóth B, Horvai G. New Methods to Study the Behavior of Molecularly Imprinted Polymers in Aprotic Solvents. Polymers (Basel) 2018; 10:E1015. [PMID: 30960940 PMCID: PMC6403568 DOI: 10.3390/polym10091015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/03/2018] [Accepted: 09/06/2018] [Indexed: 02/06/2023] Open
Abstract
This work presents three new experimental methods for studying molecular imprinting. The electric conductivity measurements of the pre-polymerization mixture of amine templates in an aprotic solvent provide evidence of ionic dissociation of the pre-polymerization complexes. The displacement measurement of the template propranolol from its molecularly imprinted polymer (MIP) using a quaternary ammonium ion in toluene, shows that this MIP behaves as an ion exchanger even in a non-polar solvent. The same experiment also shows that template binding to the MIP from toluene involves ionic interaction. The third experimental method introduced here serves to study the models of template binding on MIPs. To this end the binding isotherm of propranolol (PR) has been measured on a polymer mixture consisting of non-imprinted control polymer (NIP) and a stronger binding acidic polymer, respectively. All three methods are suitable for studying several other imprinting systems.
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Affiliation(s)
- Anett Nagy-Szakolczai
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellert ter 4., H-1111 Budapest, Hungary.
| | - Zsanett Dorkó
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellert ter 4., H-1111 Budapest, Hungary.
- MTA-BME Research Group of Technical Analytical Chemistry, Szent Gellert ter 4., H-1111 Budapest, Hungary.
| | - Blanka Tóth
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellert ter 4., H-1111 Budapest, Hungary.
| | - George Horvai
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellert ter 4., H-1111 Budapest, Hungary.
- MTA-BME Research Group of Technical Analytical Chemistry, Szent Gellert ter 4., H-1111 Budapest, Hungary.
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Preparation and Evaluation of Oseltamivir Molecularly Imprinted Polymer Silica Gel as Liquid Chromatography Stationary Phase. Molecules 2018; 23:molecules23081881. [PMID: 30060497 PMCID: PMC6222414 DOI: 10.3390/molecules23081881] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/13/2018] [Accepted: 07/25/2018] [Indexed: 11/16/2022] Open
Abstract
To improve the chromatographic performance of an oseltamivir (OS) molecularly imprinted polymer (MIP), silica gel coated with an MIP layer for OS (OSMIP@silica gel) was prepared by the surface molecular imprinting technology on the supporter of porous silica gel microspheres. A nonimprinted polymer with the silica gel (NIP@silica gel) was also prepared for comparison. The obtained particles were characterized through FT–IR, scanning electron microscopy, specific surface area analysis, and porosity measurements. The results indicated that the polymer was successfully synthesized and revealed the structural differences between imprinted and nonimprinted polymers. The results of static adsorption experiments showed that adsorption quantity of the OSMIP@silica gel for OS was higher than that for NIP@silica gel, and the OSMIP@silica gel had two kinds of affinity sites for OS but the NIP@silica gel had one. The chromatographic performance of the OSMIP@silica gel column had significant improvement. The imprinting factor of the OSMIP@silica gel column for OS was 1.64. Furthermore, the OSMIP@silica gel column showed good affinity and selectivity for template OS and another neuraminidase inhibitor, peramivir, but not for quinocetone. These results indicated that the prepared OSMIP could be used to simulate the activity center of neuraminidase, and the OSMIP@silica gel column could be also employed in future studies to search for more active neuraminidase inhibitor analogues from traditional Chinese herbs.
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Golker K, Olsson GD, Nicholls IA. The influence of a methyl substituent on molecularly imprinted polymer morphology and recognition – Acrylic acid versus methacrylic acid. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.04.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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