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Li M, Zheng Y, Lei J, Chen J, Li M, Xu X, Gou Q, Grabow JU. Fluorination effects on non-covalent binding forces: A rotational study on the 2-(trifluoromethyl)acrylic acid-water complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 317:124425. [PMID: 38754207 DOI: 10.1016/j.saa.2024.124425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/23/2024] [Accepted: 05/07/2024] [Indexed: 05/18/2024]
Abstract
This study explores the effects of the -CF3 group on non-covalent interactions through a comprehensive rotational investigation of the 2-(trifluoromethyl)acrylic acid-water complex. Employing Fourier transform microwave spectroscopy complemented by quantum chemical calculations, two isomers, i.e., s-cis and s-trans structures, have been observed in the pulsed jet. Based on relative intensity measurements, the s-cis to the s-trans population ratio was experimentally estimated to be ∼ 1:1.2. Subsequently, a comparison of the non-covalent interactions was carried out between the three similar complexes, acrylic acid-water, methacrylic acid-water, and 2-(trifluoromethyl)acrylic acid-water, offering quantitative insights into fluorination affecting the strength of the formed hydrogen bonds important, e.g., in molecular recognition.
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Affiliation(s)
- Meng Li
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331 Chongqing, China; Institut für Physikalische Chemie & Elektrochemie, Gottfried-Wilhelm-Leibniz-Universität, Hannover, Callinstr. 3A, 30167 Hannover, Germany
| | - Yang Zheng
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331 Chongqing, China
| | - Juncheng Lei
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331 Chongqing, China
| | - Junhua Chen
- School of Pharmacy, Guizhou Medical University, Guiyang 550025, Guizhou, China
| | - Meiyue Li
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331 Chongqing, China
| | - Xuefang Xu
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331 Chongqing, China.
| | - Qian Gou
- School of Chemistry and Chemical Engineering, Chongqing University, Daxuecheng South Rd. 55, 401331 Chongqing, China.
| | - Jens-Uwe Grabow
- Institut für Physikalische Chemie & Elektrochemie, Gottfried-Wilhelm-Leibniz-Universität, Hannover, Callinstr. 3A, 30167 Hannover, Germany.
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Luo Y, Yang L, Jiang L, Huang C, Shen X. Preparation of wax-based molecularly imprinted monolith for pipette-tip solid-phase extraction: a hybrid method. Mikrochim Acta 2023; 190:151. [PMID: 36952093 DOI: 10.1007/s00604-023-05726-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 03/01/2023] [Indexed: 03/24/2023]
Abstract
The development of molecularly imprinted monolith (MIM) for pipette-tip solid-phase extraction (PT-SPE) for sample pretreatment is challenging . In this work, a wax-based molecularly imprinted monolith (WMIM) was successfully prepared with a hybrid method by integration of the traditional packing SPE column and MIM, including preparation of the salt column inside the pipette, polymerization of wax-based imprinted column (WIC) outside the pipette, and immobilization of WIC inside the pipette tip. To ensure the penetration of samples and solvents during the PT-SPE, micrometer-range interconnected macropores were tailor-made via the salt-template sacrifice method. For the production of high affinity imprinted sites within the WIC, octadecanoic acid was used as functional monomer in the paraffin matrix. In terms of the adsorption property, the synthesized WIC exhibited a specific affinity to cardiovascular drugs, with an imprinting factor (IF) of 4.8 for the target analyte. Moreover, the WMIM-based PT-SPE was coupled with fluorescence spectrophotometry for the target propranolol determination (the excitation and emission wavelengths were 294 nm and 343 nm, respectively). This analytical method showed high recovery of target detection in different real samples (R > 90%), good sensitivity, and accuracy (R2 = 0.99, LOD = 0.03 ng mL-1). We believe this work could provide a significant contribution for the fabrication of MIM and promote an emerging trend of developing elution-free materials for sample pretreatment.
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Affiliation(s)
- Yaoyu Luo
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, 430030, Hubei, China
| | - Liuqian Yang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, 430030, Hubei, China
| | - Long Jiang
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, 430030, Hubei, China
| | - Chuixiu Huang
- Department of Forensic Medicine, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, 430030, Hubei, China.
| | - Xiantao Shen
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, 430030, Hubei, China.
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Ferreira VRA, Azenha MA, Pereira CM, Silva AF. Molecularly Imprinted Methyl-Modified Hollow TiO 2 Microspheres. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238510. [PMID: 36500600 PMCID: PMC9735797 DOI: 10.3390/molecules27238510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/18/2022] [Accepted: 11/28/2022] [Indexed: 12/07/2022]
Abstract
The possibility of generating organically modified hollow TiO2 microspheres via a simple sol-gel synthesis was demonstrated for the first time in this work. A mixture of titania precursors, including an organically modified precursor, was used to obtain methyl-modified hollow TiO2 microspheres selective for bilirubin by the molecular imprinting technique (Methyl-HTM-MIM). Methyl-HTM-MIM were prepared by a sol-gel method using titanium (IV) isopropoxide (TTIP), and methyltitanium triisopropoxide (MTTIP) as precursors. Two ratios of titania precursors were tested (1/6 and 1/30 molMTTIP/molTTIP). With the characterization results obtained by the SEM and ATR-FTIR techniques, it was possible to establish that only the 1/30 molMTTIP/molTTIP ratio allowed for the preparation of hollow spheres with a reasonably homogeneous methylated-TiO2 shell. It was possible to obtain a certain degree of organization of the hybrid network, which increased with calcination temperatures. By adjusting isothermal adsorption models, imprinting parameters were determined, indicating that the new methylated microspheres presented greater selectivity for bilirubin than the totally inorganic hollow TiO2 microspheres. The effectiveness of the molecular imprinting technique was proven for the first time in an organically modified titania material, with imprinting factor values greater than 1.4, corresponding to a significant increase in the maximum adsorption capacity of the template represented by the molecularly imprinted microspheres. In summary, the results obtained with the new methyl-HTM-MIM open the possibility of exploring the application of these microspheres for selective sorption (separation or sensing, for example) or perhaps even for selective photocatalysis, particularly for the degradation of organic compounds.
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Feng X, Jin S, Li D, Fu G. Controlled synthesis of open-mouthed epitope-imprinted polymer nanocapsules with a PEGylated nanocore and their application for fluorescence detection of target protein. RSC Adv 2022; 12:19561-19570. [PMID: 35865605 PMCID: PMC9258328 DOI: 10.1039/d2ra02298b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 06/27/2022] [Indexed: 11/21/2022] Open
Abstract
Epitope imprinting is an effective way to create artificial receptors for protein recognition. Surface imprinting with immobilized templates and sacrificial supports can generate high-quality imprinted cavities of homogeneous orientation and good accessibility, but it is still challenging to fabricate nanoscale imprinted materials by this approach. Herein, we propose a method for the controlled synthesis of open-mouthed epitope-imprinted polymer nanocapsules (OM-MIP NCs) by limiting the imprinting polymerization on the template-bearing side of the Janus nanoparticles (JNPs). Concurrent bromoacetyl (Ac–Br) and 2-bromoisobutyryl (iB–Br) functionalization of the major portion of SiO2 nanoparticles is achieved via the molten-wax-in-water Pickering emulsion approach. The cysteinyl-derived epitope templates are immobilized through the Ac–Br groups, and then surface imprinting is fulfilled via ATRP initiated by the iB–Br groups. The SiO2 supports are partially etched and then PEGlated, affording OM-MIP NCs with a PEGylated nanocore. The inside nanocore can facilitate collection of the NCs by centrifugation, and its PEGylation can inhibit non-specific binding. The surface imprinting can be optimized through the ATRP time, and the etching can be tailored via the concentration of NH4HF2 employed. For proof-of-concept, with a C-terminus nonapeptide of bovine serum albumin (BSA) chosen as a model epitope and polymerizable carbon dots added to the pre-polymerization solution, fluorescent OM-MIP NCs were fabricated for BSA sensing. The as-synthesized NCs exhibited satisfactory detection performance, with an imprinting factor of 6.1, a limit of detection of 38.1 nM, a linear range of 0.25–6 μM, and recoveries of 98.0 to 104.0% in bovine serum samples. Surface epitope imprinting over the one side of Janus SiO2 NPs via ATRP affords open-mouthed epitope-imprinted nanocapsules with imprinted cavities of homogeneous orientation and good accessibility for fluorescence detection of target protein.![]()
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Affiliation(s)
- Xingjia Feng
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University Tianjin 300071 China +86 22 23501443
| | - Siyu Jin
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University Tianjin 300071 China +86 22 23501443
| | - Dongru Li
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University Tianjin 300071 China +86 22 23501443
| | - Guoqi Fu
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University Tianjin 300071 China +86 22 23501443
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Teixeira SPB, Reis RL, Peppas NA, Gomes ME, Domingues RMA. Epitope-imprinted polymers: Design principles of synthetic binding partners for natural biomacromolecules. SCIENCE ADVANCES 2021; 7:eabi9884. [PMID: 34714673 PMCID: PMC8555893 DOI: 10.1126/sciadv.abi9884] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 09/07/2021] [Indexed: 05/27/2023]
Abstract
Molecular imprinting (MI) has been explored as an increasingly viable tool for molecular recognition in various fields. However, imprinting of biologically relevant molecules like proteins is severely hampered by several problems. Inspired by natural antibodies, the use of epitopes as imprinting templates has been explored to circumvent those limitations, offering lower costs and greater versatility. Here, we review the latest innovations in this technology, as well as different applications where MI polymers (MIPs) have been used to target biomolecules of interest. We discuss the several steps in MI, from the choice of epitope and functional monomers to the different production methods and possible applications. We also critically explore how MIP performance can be assessed by various parameters. Last, we present perspectives on future breakthroughs and advances, offering insights into how MI techniques can be expanded to new fields such as tissue engineering.
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Affiliation(s)
- Simão P. B. Teixeira
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Rui L. Reis
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Nicholas A. Peppas
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, TX 78712-1801, USA
- Institute for Biomaterials, Drug Delivery, and Regenerative Medicine, University of Texas at Austin, Austin, TX 78712-1801, USA
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX 78712-1801, USA
- Department of Pediatrics, Dell Medical School, University of Texas at Austin, Austin, TX 78712-1801, USA
- Department of Surgery and Perioperative Care, Dell Medical School, University of Texas at Austin, Austin, TX 78712-1801, USA
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, Austin, TX 78712-1801, USA
| | - Manuela E. Gomes
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Rui M. A. Domingues
- 3B’s Research Group, I3Bs—Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark—Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, Braga, Guimarães, Portugal
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Pasquardini L, Bossi AM. Molecularly imprinted polymers by epitope imprinting: a journey from molecular interactions to the available bioinformatics resources to scout for epitope templates. Anal Bioanal Chem 2021; 413:6101-6115. [PMID: 34018035 PMCID: PMC8440283 DOI: 10.1007/s00216-021-03409-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/26/2021] [Accepted: 05/11/2021] [Indexed: 01/07/2023]
Abstract
The molecular imprinting of proteins is the process of forming biomimetics with entailed protein-recognition by means of a template-assisted synthesis. Protein-imprinted polymers (pMIPs) have been successfully employed in separations, assays, sensors, and imaging. From a technical point of view, imprinting a protein is both costly, for protein expression and purification, and challenging, for the preservation of the protein's structural properties. In fact, the imprinting process needs to guarantee the preservation of the same protein three-dimensional conformation that later would be recognized. So far, the captivating idea to imprint just a portion of the protein, i.e., an epitope, instead of the whole, proved successful, offering reduced costs, compatibility with many synthetic conditions (solvents, pH, temperatures), and fine-tuning of the peptide sequence so to target specific physiological and functional conditions of the protein, such as post-translational modifications. Here, protein-protein interactions and the biochemical features of the epitopes are inspected, deriving lessons to prepare more effective pMIPs. Epitopes are categorized in linear or structured, immunogenic or not, located at the protein's surface or buried in its core and the imprinting strategies are discussed. Moreover, attention is given to freely available online bioinformatics resources that might offer key tools to gain further rationale amid the selection process of suitable epitopes templates.
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Affiliation(s)
| | - Alessandra Maria Bossi
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.
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Gómez-Arribas LN, Darder MDM, García N, Rodriguez Y, Urraca JL, Moreno-Bondi MC. Hierarchically Imprinted Polymer for Peptide Tag Recognition Based on an Oriented Surface Epitope Approach. ACS APPLIED MATERIALS & INTERFACES 2020; 12:49111-49121. [PMID: 32990425 DOI: 10.1021/acsami.0c14846] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
FLAG tag (DYKDDDDK) is a short peptide commonly used for the purification of recombinant proteins. The high price of the affinity columns and their limited reusability are a shortcoming for their widespread use in biotechnology applications. Molecularly imprinted polymers (MIPs) can circumvent some of the limitations of bioaffinity columns for such applications, including long-term stability, reusability, and cost. We report herein the synthesis of MIPs selective to the FLAG tag by hierarchical imprinting. Using the epitope imprinting approach, a 5-amino acid peptide DYKDC was selected as a template and was covalently immobilized on the surface of microporous silica beads, previously functionalized with different aminosilanes, namely, 3-(2-aminoethylamino)propyldimethoxymethylsilane, AEAPMS, and N-(2-aminoethyl)-2,2,4-trimethyl-1-aza-2-silacyclopentane, AETAZS. We investigated the effect of the type of silane on the production of homogeneous silane-grafted layers with the highest extent of silanol condensation as possible using 29Si CP/MAS NMR. We observed that the right orientation of the imprinted cavities can substantially improve analyte recoveries from the MIP. After template and silica removal, the DYKDC-MIPs were used as sorbents for solid-phase extraction (molecularly imprinted solid-phase extraction) of the FLAG peptide, showing that the polymer prepared with AETAZS-bound silica beads contained binding sites more selective to the tag (RMIP-AZA = 87.4% vs RNIP-AZA = 4.1%, n = 3, RSD ≤ 4.2%) than those prepared using AEAPMS (RMIP-DM = 73.4% vs RNIP-DM = 23.2%, n = 3, RSD ≤ 4.0%) as a functionalization agent. An extensive computational molecular modeling study was also conducted, shedding some light on the interaction mechanism between the FLAG peptide and the imprinted template in the binding cavities.
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Affiliation(s)
- Lidia N Gómez-Arribas
- Chemical Optosensors and Applied Photochemistry Group (GSOLFA), Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Madrid 28040, Spain
| | - María Del Mar Darder
- Chemical Optosensors and Applied Photochemistry Group (GSOLFA), Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Madrid 28040, Spain
| | - Nuria García
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), Calle Juan de la Cierva 3, Madrid 28006, Spain
| | - Yoel Rodriguez
- Department of Natural Sciences, Hostos Community College of CUNY, 500 Grand Concourse, Bronx, New York 10451 New York, United States
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York 10029 New York, United States
| | - Javier L Urraca
- Chemical Optosensors and Applied Photochemistry Group (GSOLFA), Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Madrid 28040, Spain
| | - María C Moreno-Bondi
- Chemical Optosensors and Applied Photochemistry Group (GSOLFA), Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Madrid 28040, Spain
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Regan B, Boyle F, O'Kennedy R, Collins D. Evaluation of Molecularly Imprinted Polymers for Point-of-Care Testing for Cardiovascular Disease. SENSORS (BASEL, SWITZERLAND) 2019; 19:E3485. [PMID: 31395843 PMCID: PMC6720456 DOI: 10.3390/s19163485] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 07/29/2019] [Accepted: 08/06/2019] [Indexed: 12/13/2022]
Abstract
Molecular imprinting is a rapidly growing area of interest involving the synthesis of artificial recognition elements that enable the separation of analyte from a sample matrix and its determination. Traditionally, this approach can be successfully applied to small analyte (<1.5 kDa) separation/ extraction, but, more recently it is finding utility in biomimetic sensors. These sensors consist of a recognition element and a transducer similar to their biosensor counterparts, however, the fundamental distinction is that biomimetic sensors employ an artificial recognition element. Molecularly imprinted polymers (MIPs) employed as the recognition elements in biomimetic sensors contain binding sites complementary in shape and functionality to their target analyte. Despite the growing interest in molecularly imprinting techniques, the commercial adoption of this technology is yet to be widely realised for blood sample analysis. This review aims to assess the applicability of this technology for the point-of-care testing (POCT) of cardiovascular disease-related biomarkers. More specifically, molecular imprinting is critically evaluated with respect to the detection of cardiac biomarkers indicative of acute coronary syndrome (ACS), such as the cardiac troponins (cTns). The challenges associated with the synthesis of MIPs for protein detection are outlined, in addition to enhancement techniques that ultimately improve the analytical performance of biomimetic sensors. The mechanism of detection employed to convert the analyte concentration into a measurable signal in biomimetic sensors will be discussed. Furthermore, the analytical performance of these sensors will be compared with biosensors and their potential implementation within clinical settings will be considered. In addition, the most suitable application of these sensors for cardiovascular assessment will be presented.
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Affiliation(s)
- Brian Regan
- School of Biotechnology, Dublin City University, Dublin 9, Ireland.
| | - Fiona Boyle
- School of Biotechnology, Dublin City University, Dublin 9, Ireland
| | - Richard O'Kennedy
- School of Biotechnology, Dublin City University, Dublin 9, Ireland
- Research Complex, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
| | - David Collins
- School of Biotechnology, Dublin City University, Dublin 9, Ireland
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Komiyama M, Mori T, Ariga K. Molecular Imprinting: Materials Nanoarchitectonics with Molecular Information. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180084] [Citation(s) in RCA: 161] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Makoto Komiyama
- WPI-MANA, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8577, Japan
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, P. R. China
| | - Taizo Mori
- WPI-MANA, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Katsuhiko Ariga
- WPI-MANA, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
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10
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Cenci L, Bertolla M, Anesi A, Ambrosi E, Guella G, Bossi AM. Micro- versus nano-sized molecularly imprinted polymers in MALDI-TOF mass spectrometry analysis of peptides. Anal Bioanal Chem 2017; 409:6253-6261. [DOI: 10.1007/s00216-017-0569-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/12/2017] [Accepted: 08/04/2017] [Indexed: 11/24/2022]
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11
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Bole AL, Manesiotis P. Advanced Materials for the Recognition and Capture of Whole Cells and Microorganisms. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5349-5366. [PMID: 26662854 DOI: 10.1002/adma.201503962] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 09/23/2015] [Indexed: 06/05/2023]
Abstract
Selective cell recognition and capture has recently attracted significant interest due to its potential importance for clinical, diagnostic, environmental, and security applications. Current methods for cell isolation from complex samples are largely dependent on cell size and density, with limited application scope as many of the target cells do not exhibit appreciable differences in this respect. The most recent and forthcoming developments in the area of selective recognition and capture of whole cells, based on natural receptors, as well as synthetic materials utilising physical and chemical properties of the target cell or microorganism, are highlighted. Particular focus is given to the development of cell complementary surfaces using the cells themselves as templating agents, by means of molecular imprinting, and their combination with sensing platforms for rapid cell detection in complex media. The benefits and challenges of each approach are discussed and a perspective of the future of this research area is given.
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Affiliation(s)
- Amanda L Bole
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, N. Ireland, UK
| | - Panagiotis Manesiotis
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, N. Ireland, UK
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12
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Yang X, Dong X, Zhang K, Yang F, Guo Z. A molecularly imprinted polymer as an antibody mimic with affinity for lysine acetylated peptides. J Mater Chem B 2016; 4:920-928. [DOI: 10.1039/c5tb02620b] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Molecularly imprinted polymer with affinity for acetylated lysines prepared by the combination of epitope and surface-confined imprinting strategy.
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Affiliation(s)
- Xu Yang
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- China
| | - Xiangchao Dong
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- China
| | - Kai Zhang
- Department of Biochemistry and Molecular Biology & Tianjin Key Laboratory of Medical Epigenetics
- Tianjin Medical University
- Tianjin 300070
- China
| | - Fangfang Yang
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Nankai University
- Tianjin 300071
- China
| | - Zhenchang Guo
- Department of Biochemistry and Molecular Biology & Tianjin Key Laboratory of Medical Epigenetics
- Tianjin Medical University
- Tianjin 300070
- China
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13
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Molecularly imprinted polymers for separating and sensing of macromolecular compounds and microorganisms. Biotechnol Adv 2015; 34:30-46. [PMID: 26656748 DOI: 10.1016/j.biotechadv.2015.12.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 11/26/2015] [Accepted: 12/01/2015] [Indexed: 12/22/2022]
Abstract
The present review article focuses on gathering, summarizing, and critically evaluating the results of the last decade on separating and sensing macromolecular compounds and microorganisms with the use of molecularly imprinted polymer (MIP) synthetic receptors. Macromolecules play an important role in biology and are termed that way to contrast them from micromolecules. The former are large and complex molecules with relatively high molecular weights. The article mainly considers chemical sensing of deoxyribonucleic acids (DNAs), proteins and protein fragments as well as sugars and oligosaccharides. Moreover, it briefly discusses fabrication of chemosensors for determination of bacteria and viruses that can ultimately be considered as extremely large macromolecules.
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Giovannoli C, Passini C, Anfossi L, Nardo FD, Spano G, Maurino V, Baggiani C. Comparison of binding behavior for molecularly imprinted polymers prepared by hierarchical imprinting or Pickering emulsion polymerization. J Sep Sci 2015; 38:3661-8. [DOI: 10.1002/jssc.201500511] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 07/31/2015] [Accepted: 07/31/2015] [Indexed: 01/23/2023]
Affiliation(s)
| | - Cinzia Passini
- Department of Chemistry; University of Torino; via Giuria 5 Torino Italy
| | - Laura Anfossi
- Department of Chemistry; University of Torino; via Giuria 5 Torino Italy
| | - Fabio Di Nardo
- Department of Chemistry; University of Torino; via Giuria 5 Torino Italy
| | - Giulia Spano
- Department of Chemistry; University of Torino; via Giuria 5 Torino Italy
| | - Valter Maurino
- Department of Chemistry; University of Torino; via Giuria 5 Torino Italy
| | - Claudio Baggiani
- Department of Chemistry; University of Torino; via Giuria 5 Torino Italy
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15
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Cenci L, Andreetto E, Vestri A, Bovi M, Barozzi M, Iacob E, Busato M, Castagna A, Girelli D, Bossi AM. Surface plasmon resonance based on molecularly imprinted nanoparticles for the picomolar detection of the iron regulating hormone Hepcidin-25. J Nanobiotechnology 2015; 13:51. [PMID: 26311037 PMCID: PMC4549936 DOI: 10.1186/s12951-015-0115-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 08/10/2015] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Molecularly imprinted polymer (MIP) technique is a powerful mean to produce tailor made synthetic recognition sites. Here precipitation polymerization was exploited to produce a library of MIP nanoparticles (NPs) targeting the N terminus of the hormone Hepcidin-25, whose serum levels correlate with iron dis-metabolisms and doping. Biotinylated MIP NPs were immobilized to NeutrAvidin™ SPR sensor chip. The response of the MIP NP sensor to Hepcidin-25 was studied. FINDINGS Morphological analysis showed MIP NPs of 20-50 nm; MIP NP exhibited high affinity and selectivity for the target analyte: low nanomolar Kds for the interaction NP/Hepcidin-25, but none for the NP/non regulative Hepcidin-20. The MIP NP were integrated as recognition element in SPR allowing the detection of Hepcidin-25 in 3 min. Linearity was observed with the logarithm of Hepcidin-25 concentration in the range 7.2-720 pM. LOD was 5 pM. The response for Hepcidin-20 was limited. Hepcidin-25 determination in real serum samples spiked with known analyte concentrations was also attempted. CONCLUSION The integration of MIP NP to SPR allowed the determination of Hepcidin-25 at picomolar concentrations in short times outperforming the actual state of art. Optimization is still needed for real sample measurements in view of future clinical applications.
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Affiliation(s)
- Lucia Cenci
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.
| | - Erika Andreetto
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.
| | - Ambra Vestri
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.
| | - Michele Bovi
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.
| | - Mario Barozzi
- Center for Materials and Microsystems CMM-MNF, FBK Fondazione Bruno Kessler, Via Sommarive 18, 38123, Povo-Trento, Italy.
| | - Erica Iacob
- Center for Materials and Microsystems CMM-MNF, FBK Fondazione Bruno Kessler, Via Sommarive 18, 38123, Povo-Trento, Italy.
| | - Mirko Busato
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.
| | - Annalisa Castagna
- Department of Medicine, University of Verona, Section of Internal Medicine B, 37134, Verona, Italy.
| | - Domenico Girelli
- Department of Medicine, University of Verona, Section of Internal Medicine B, 37134, Verona, Italy.
| | - Alessandra Maria Bossi
- Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134, Verona, Italy.
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16
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Polyanina DA, Beklemishev MK. Molecularly imprinted inorganic supports in high-performance liquid chromatography and solid-phase extraction. JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1134/s1061934815030156] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Yang F, Lin S, Dong X. An artificial receptor synthesized by surface-confined imprinting for the recognition of acetylation on histone H4 K16. Chem Commun (Camb) 2015; 51:7673-6. [DOI: 10.1039/c4cc09787d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecularly imprinted artificial receptor with high selectivity for the recognition of acetylation on histone H4 K16.
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Affiliation(s)
- Fangfang Yang
- Department of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Shen Lin
- Department of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
| | - Xiangchao Dong
- Department of Chemistry
- Nankai University
- Tianjin 300071
- P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
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18
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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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Bio-mimetic sensors based on molecularly imprinted membranes. SENSORS 2014; 14:13863-912. [PMID: 25196110 PMCID: PMC4179059 DOI: 10.3390/s140813863] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 07/16/2014] [Accepted: 07/21/2014] [Indexed: 12/16/2022]
Abstract
An important challenge for scientific research is the production of artificial systems able to mimic the recognition mechanisms occurring at the molecular level in living systems. A valid contribution in this direction resulted from the development of molecular imprinting. By means of this technology, selective molecular recognition sites are introduced in a polymer, thus conferring it bio-mimetic properties. The potential applications of these systems include affinity separations, medical diagnostics, drug delivery, catalysis, etc. Recently, bio-sensing systems using molecularly imprinted membranes, a special form of imprinted polymers, have received the attention of scientists in various fields. In these systems imprinted membranes are used as bio-mimetic recognition elements which are integrated with a transducer component. The direct and rapid determination of an interaction between the recognition element and the target analyte (template) was an encouraging factor for the development of such systems as alternatives to traditional bio-assay methods. Due to their high stability, sensitivity and specificity, bio-mimetic sensors-based membranes are used for environmental, food, and clinical uses. This review deals with the development of molecularly imprinted polymers and their different preparation methods. Referring to the last decades, the application of these membranes as bio-mimetic sensor devices will be also reported.
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20
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21
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Poma A, Guerreiro A, Caygill S, Moczko E, Piletsky S. Automatic reactor for solid-phase synthesis of molecularly imprinted polymeric nanoparticles (MIP NPs) in water. RSC Adv 2014; 4:4203-4206. [PMID: 26722622 DOI: 10.1039/c3ra46838k] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
We report the development of an automated chemical reactor for solid-phase synthesis of MIP NPs in water. Operational parameters are under computer control, requiring minimal operator intervention. In this study, "ready for use" MIP NPs with sub-nanomolar affinity are prepared against pepsin A, trypsin and α-amylase in only 4 hours.
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Affiliation(s)
- Alessandro Poma
- Cranfield Health, Cranfield University, Cranfield, MK43 0AL, United Kingdom
| | - Antonio Guerreiro
- Cranfield Health, Cranfield University, Cranfield, MK43 0AL, United Kingdom
| | - Sarah Caygill
- Cranfield Health, Cranfield University, Cranfield, MK43 0AL, United Kingdom
| | - Ewa Moczko
- Cranfield Health, Cranfield University, Cranfield, MK43 0AL, United Kingdom
| | - Sergey Piletsky
- Cranfield Health, Cranfield University, Cranfield, MK43 0AL, United Kingdom
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22
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Affiliation(s)
- Romana Schirhagl
- Physics
Department, ETH-Zurich, Schafmattstrasse
16, 8046 Zurich
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23
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24
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Poma A, Guerreiro A, Whitcombe MJ, Piletska EV, Turner APF, Piletsky SA. Solid-Phase Synthesis of Molecularly Imprinted Polymer Nanoparticles with a Reusable Template - "Plastic Antibodies". ADVANCED FUNCTIONAL MATERIALS 2013; 23:2821-2827. [PMID: 26869870 PMCID: PMC4746745 DOI: 10.1002/adfm.201202397] [Citation(s) in RCA: 241] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Molecularly Imprinted Polymers (MIPs) are generic alternatives to antibodies in sensors, diagnostics and separations. To displace biomolecules without radical changes in infrastructure in device manufacture, MIPs should share their characteristics (solubility, size, specificity and affinity, localized binding domain) whilst maintaining the advantages of MIPs (low-cost, short development time and high stability) hence the interest in MIP nanoparticles. Herein we report a reusable solid-phase template approach (fully compatible with automation) for the synthesis of MIP nanoparticles and their precise manufacture using a prototype automated UV photochemical reactor. Batches of nanoparticles (30-400 nm) with narrow size distributions imprinted with: melamine (d = 60 nm, Kd = 6.3 × 10-8 m), vancomycin (d = 250 nm, Kd = 3.4 × 10-9 m), a peptide (d = 350 nm, Kd = 4.8 × 10-8 m) and proteins have been produced. Our instrument uses a column packed with glass beads, bearing the template. Process parameters are under computer control, requiring minimal manual intervention. For the first time we demonstrate the reliable re-use of molecular templates in the synthesis of MIPs (≥ 30 batches of nanoMIPs without loss of performance). NanoMIPs are produced template-free and the solid-phase acts both as template and affinity separation medium.
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Affiliation(s)
- Alessandro Poma
- Cranfield Health, Vincent Building, Cranfield University, Cranfield, Bedfordshire, MK43 0AL (UK)
| | - Antonio Guerreiro
- Cranfield Health, Vincent Building, Cranfield University, Cranfield, Bedfordshire, MK43 0AL (UK)
| | - Michael J Whitcombe
- Cranfield Health, Vincent Building, Cranfield University, Cranfield, Bedfordshire, MK43 0AL (UK)
| | - Elena V Piletska
- Cranfield Health, Vincent Building, Cranfield University, Cranfield, Bedfordshire, MK43 0AL (UK)
| | - Anthony P F Turner
- Cranfield Health, Vincent Building, Cranfield University, Cranfield, Bedfordshire, MK43 0AL (UK)
| | - Sergey A Piletsky
- Cranfield Health, Vincent Building, Cranfield University, Cranfield, Bedfordshire, MK43 0AL (UK)
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25
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26
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Baggiani C, Baravalle P, Giovannoli C, Anfossi L, Passini C, Giraudi G. Binding behaviour of molecularly imprinted polymers prepared by a hierarchical approach in mesoporous silica beads of varying porosity. J Chromatogr A 2011; 1218:1828-34. [DOI: 10.1016/j.chroma.2011.02.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 12/28/2010] [Accepted: 02/02/2011] [Indexed: 10/18/2022]
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27
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28
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Whitcombe MJ, Chianella I, Larcombe L, Piletsky SA, Noble J, Porter R, Horgan A. The rational development of molecularly imprinted polymer-based sensors for protein detection. Chem Soc Rev 2011; 40:1547-71. [DOI: 10.1039/c0cs00049c] [Citation(s) in RCA: 569] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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29
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Yoshimatsu K, LeJeune J, Spivak DA, Ye L. Peptide-imprinted polymer microspheres prepared by precipitation polymerization using a single bi-functional monomer. Analyst 2009; 134:719-24. [PMID: 19305921 DOI: 10.1039/b814967d] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A single bi-functional monomer, N,O-bismethacryloyl ethanolamine (NOBE), was used in precipitation polymerization system to synthesize molecularly imprinted polymer (MIP) microspheres. Highly specific binding sites were obtained for N-terminal protected neuropeptides, Boc-Leu-enkephalin and Pyr-Leu-enkephalin. The use of NOBE allowed binding sites to be formed in polymer microspheres that are able to recognize target peptides through the consensus C-terminal sequence. The interesting molecular binding results suggest a new approach for peptide analysis combining in situ chemical modification with MIP recognition under non-aqueous conditions.
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Affiliation(s)
- Keiichi Yoshimatsu
- Pure and Applied Biochemistry, Chemical Center, Lund University, Box 124, S-221 00 Lund, Sweden
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30
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Schirmer C, Meisel H. Synthesis and Evaluation of Molecularly Imprinted Polymers (MIP) with Affinity for the Polypeptide Nisin. FOOD ANAL METHOD 2008. [DOI: 10.1007/s12161-008-9061-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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31
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Haginaka J. Monodispersed, molecularly imprinted polymers as affinity-based chromatography media. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 866:3-13. [PMID: 17669699 DOI: 10.1016/j.jchromb.2007.07.019] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2007] [Revised: 06/27/2007] [Accepted: 07/05/2007] [Indexed: 11/23/2022]
Abstract
This review article deals with preparation methods for spherical and monodispersed molecularly imprinted polymers (MIPs) in micrometer sizes. Those methods include suspension polymerization in water, liquid perfluorocarbon and mineral oil, seed polymerization and dispersion/precipitation polymerization. The other methods are the use of beaded materials such as a spherical silica or organic polymer for grafting MIP phases onto the surfaces of porous materials or filling the pores of silica with MIPs followed by dissolution of the silica. Furthermore, applications of MIP microspheres as affinity-based chromatography media, HPLC stationary phases and solid-phase extraction media, will be discussed for pharmaceutical, biomedical and environmental analysis.
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Affiliation(s)
- Jun Haginaka
- Faculty of Pharmaceutical Sciences, Mukogawa Women's University, 11-68 Koshien Kyuban-cho, Nishinomiya, Hyogo 663-8179, Japan.
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32
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Lu CH, Zhou WH, Han B, Yang HH, Chen X, Wang XR. Surface-imprinted core-shell nanoparticles for sorbent assays. Anal Chem 2007; 79:5457-61. [PMID: 17563116 DOI: 10.1021/ac070282m] [Citation(s) in RCA: 178] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this paper, we present a general protocol for the making of surface-imprinted core-shell nanoparticles via surface reversible addition-fragmentation chain-transfer (RAFT) polymerization using RAFT agent functionalized model silica nanoparticles as the chain-transfer agent. In this protocol, trichloro(4-chloromethylphenyl)silane was immobilized on the surface of SiO2 nanoparticles, forming chloromethylphenyl functionalized silica (silica-Cl). RAFT agent functionalized silica was subsequently produced by substitute reaction of silica-Cl with PhC(S)SMgBr. The grafting copolymerization of 4-vinylpyridine and ethylene glycol dimethacrylate using surface RAFT polymerization and in the presence of 2,4-dichlorophenoxyacetic acid as the template led to the formation of surface-imprinted core-shell nanoparticles. The resulting surface-imprinted core-shell nanoparticles bind the original template 2,4-D with an appreciable selectivity over structurally related compounds. The potential use of the surface-imprinted core-shell nanoparticles as the recognition element in the competitive fluorescent binding assay for 2,4-D was also demonstrated.
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Affiliation(s)
- Chun-Hua Lu
- The Key Lab of Analysis and Detection Technology for Food Safety of the MOE, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, P.R. China
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Tan CJ, Tong YW. Molecularly imprinted beads by surface imprinting. Anal Bioanal Chem 2007; 389:369-76. [PMID: 17563884 DOI: 10.1007/s00216-007-1362-4] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2007] [Revised: 05/08/2007] [Accepted: 05/10/2007] [Indexed: 11/25/2022]
Abstract
Molecular imprinting is a state-of-the-art technique for imparting molecular recognition properties to a synthetic polymeric matrix. Conventionally, the technique is easily carried out using bulk imprinting, where molecularly imprinted polymers (MIPs) are prepared in large chunks and post-treatment processes like grinding and sieving are then required. However, this strategy tends to produce sharp-edged, irregular MIP bits with a limited scope of direct application. In addition, due to the creation of binding sites within the polymeric bulk, the issue of the hindrance of adsorbate diffusion (especially in the case of macromolecules) during template rebinding makes the MIPs prepared through this approach unsuitable for practical applications. Thus over the years, many efforts to address the limitations of conventional molecular imprinting techniques have resulted in new imprinting methodologies. Systems like suspension and precipitation polymerization, where MIPs with tunable morphologies can be prepared, have been developed. Additionally, strategies like surface imprinting have also been employed. Ultimately, both of these approaches have been combined to prepare regularly shaped surface-imprinted MIP beads. Such an approach incorporates the advantages of both methodologies at the same time. Given their desirable physical morphologies and favorable adsorption kinetics, MIPs prepared in this manner show significant promise for industrial applications. Therefore, they will be the main focus of this review.
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Affiliation(s)
- Chau Jin Tan
- Department of Chemical & Biomolecular Engineering, National University of Singapore, 21 Lower Kent Ridge Road, Singapore 119077, Singapore
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34
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Janiak DS, Kofinas P. Molecular imprinting of peptides and proteins in aqueous media. Anal Bioanal Chem 2007; 389:399-404. [PMID: 17505819 DOI: 10.1007/s00216-007-1327-7] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2006] [Revised: 03/15/2007] [Accepted: 04/24/2007] [Indexed: 10/23/2022]
Abstract
Molecular imprinting has received significant attention in recent years, as it provides a viable method for creating synthetic receptors capable of selectively recognizing specific target molecules. Despite significant growth within the field, the majority of template molecules studied thus far have been characterized by their low molecular weight and insolubility in aqueous systems. In biological systems, molecular recognition events occur in aqueous media. Therefore, in order to create molecularly imprinted polymers capable of mimicking biological processes, it is necessary to synthesize artificial receptors which can selectively recognize their respective target biological macromolecules such as peptides and proteins in aqueous media. In this review, we discuss the challenges associated with the imprinting of peptides and proteins in aqueous media. In addition, we discuss the significant progress which has been made within the field.
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Affiliation(s)
- Daniel S Janiak
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
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35
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Baggiani C, Anfossi L, Giovannoli C. Solid phase extraction of food contaminants using molecular imprinted polymers. Anal Chim Acta 2007; 591:29-39. [PMID: 17456421 DOI: 10.1016/j.aca.2007.01.056] [Citation(s) in RCA: 209] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2006] [Revised: 01/16/2007] [Accepted: 01/20/2007] [Indexed: 11/16/2022]
Abstract
Food contamination from natural or anthropogenic sources poses severe risks to human health. It is now largely accepted that continuous exposure to low doses of toxic chemicals can be related to several chronic diseases, including some type of cancer and serious hormonal dysfunctions. Contemporary analytical methods have the sensitivity required for contamination detection and quantification, but direct application of these methods on food samples can be rarely performed. In fact, the matrix introduces severe disturbances, and analysis can be performed only after some clean-up and preconcentration steps. Current sample pre-treatment methods, mostly based on the solid phase extraction technique, are very fast and inexpensive but show a lack of selectivity, while methods based on immunoaffinity extraction are very selective but expensive and not suitable for harsh environments. Thus, inexpensive, rapid and selective clean-up methods, relaying on "intelligent" materials are needed. Recent years have seen a significant increase of the "molecularly imprinted solid phase extraction" (MISPE) technique in the food contaminant analysis. In fact, this technique seems to be particularly suitable for extractive applications where analyte selectivity in the presence of very complex and structured matrices represents the main problem. In this review, several applications of MISPE in food contamination analysis will be discussed, with particular emphasis on the extraction of pesticides, drugs residua, mycotoxins and environmental contaminants.
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Affiliation(s)
- Claudio Baggiani
- Laboratory of Bioanalytical Chemistry, Department of Analytical Chemistry, University of Torino, Italy.
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36
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Warsinke A, Nagel B. Towards Separation‐Free Electrochemical Affinity Sensors by Using Antibodies, Aptamers, and Molecularly Imprinted Polymers—A Review. ANAL LETT 2006. [DOI: 10.1080/00032710600853903] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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37
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Theodoridis G, Lasáková M, Skeríková V, Tegou A, Giantsiou N, Jandera P. Molecular imprinting of natural flavonoid antioxidants: Application in solid-phase extraction for the sample pretreatment of natural products prior to HPLC analysis. J Sep Sci 2006; 29:2310-21. [PMID: 17120815 DOI: 10.1002/jssc.200500492] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
As shown in the past years, SPE based on molecularly imprinted polymers (MIPs) may provide significant enhancement of selectivity in sample preparation and analyte preconcentration. The objective of this work was the fabrication of MIPs for the specific adsorption of rutin and quercetin. The two flavonoids were used as the template molecules for the preparation of MIP phases in a self-assembly (noncovalent) approach. The produced MIPs were validated with regard to the imprinting efficiency as media for LC and SPE. The retention behavior of several flavonoid compounds was studied using as stationary phases imprinted, control nonimprinted polymers, and commercial silica-based materials. MIPs were applied as materials for the selective SPE and preconcentration of the flavonoids from white and red wine, orange juice, and tea. The collected fractions were analyzed by high-pressure LC. MIP-SPE facilitated specific analyte isolation and effective sample clean-up. The results show that molecularly imprinted SPE can be a useful tool for the simple, selective, and cost-effective pretreatment of samples containing natural antioxidants.
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Affiliation(s)
- Georgios Theodoridis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University, Thessaloniki, Greece.
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Abstract
Numerous innovations in high-throughput protein production and microarray surface technologies have enabled the development of addressable formats for proteins ordered at high spatial density. Protein array implementations have largely focused on antibody arrays for high-throughput protein profiling. However, it is also possible to construct arrays of full-length, functional proteins from a library of expression clones. The advent of protein-based microarrays allows the global observation of biochemical activities on an unprecedented scale, where hundreds or thousands of proteins can be simultaneously screened for protein-protein, protein-nucleic acid, and small molecule interactions. This technology holds great potential for basic molecular biology research, disease marker identification, toxicological response profiling and pharmaceutical target screening.
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Affiliation(s)
- Paul Bertone
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520, USA.
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Annenkov VV, Danilovtseva EN, Filina EA, Likhoshway YV. Interaction of silicic acid with poly(1-vinylimidazole). ACTA ACUST UNITED AC 2005. [DOI: 10.1002/pola.21190] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kandimalla VB, Ju H. Molecular imprinting: a dynamic technique for diverse applications in analytical chemistry. Anal Bioanal Chem 2004; 380:587-605. [PMID: 15480581 DOI: 10.1007/s00216-004-2793-9] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2004] [Revised: 06/22/2004] [Accepted: 07/29/2004] [Indexed: 10/26/2022]
Abstract
Continuous advances in analyzing complex matrices, improving reliability and simplicity, and performing multiple simultaneous assays with extreme sensitivity are increasing. Several techniques have been developed for the quantitative assays of analytes at low concentrations (e.g., high-pressure liquid chromatography, gas chromatography, immunoassay and the polymerase chain reaction technique). To achieve highly specific and sensitive analysis, high affinity, stable, and specific recognition agents are needed. Although biological recognition agents are very specific and sensitive they are labile and/or have a low density of binding sites. During the past decade molecular imprinting has emerged as an attractive and highly accepted tool for the development of artificial recognition agents. Molecular imprinting is achieved by the interaction, either noncovalent or covalent, between complementary groups in a template molecule and functional monomer units through polymerization or polycondensation. These molecularly imprinted polymers have been widely employed for diverse applications (e.g., in chromatographic separation, drug screening, chemosensors, catalysis, immunoassays etc.) owing to their specificity towards the target molecules and high stability against physicochemical perturbations. In this review the advantages, applications, and recent developments in molecular imprinting technology are highlighted.
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Affiliation(s)
- Vivek Babu Kandimalla
- Department of Chemistry, Key Laboratory of Analytical Chemistry for Life Science (Chinese Ministry of Education), Nanjing University, Nanjing 210093, China
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