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Lee Y, Ahn S, Cho H, Ogunro V, Bae S. Solventless solid‐phase extraction using Zn ion‐imprinted polymer detected by colorimetric method. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yelin Lee
- Department of Chemistry Seoul Women's University Seoul Korea
| | - Soyoung Ahn
- Department of Chemistry Seoul Women's University Seoul Korea
| | - Hansang Cho
- Department of Mechanical and Engineering Science University of North Carolina‐Charlotte Charlotte North Carolina USA
| | - Vincent Ogunro
- Department of Civil and Environmental Engineering University of North Carolina‐Charlotte Charlotte North Carolina USA
| | - Sunyoung Bae
- Department of Chemistry Seoul Women's University Seoul Korea
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2
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Development and Application of Molecularly Imprinted Polymers for the Selective Extraction of Chlordecone from Bovine Serum. SEPARATIONS 2021. [DOI: 10.3390/separations8120237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The widespread use of chlordecone (CLD), an organochlorine pesticide, until the 1990s to protect banana crops in the French West Indies led to significant pollution of water and soil and, subsequently, of bovine intended for human consumption. Carcasses are submitted to official controls based on perirenal fat CLD determination. In order to allow for pre-slaughter controls, a selective analytical method based on a molecularly imprinted polymer (MIP) associated to the LC/MS-MS method was developed to determine the level of CLD in bovine serum that can be collected before slaughter. Different synthesis conditions were therefore assayed by varying the nature of the monomer and of the porogen, and the most promising MIP in terms of selective retention for CLD (extraction recovery close to 100%) was completely characterized by solid-phase extraction (repeatability of the extraction procedure, of the synthesis, and of the cartridge filling) in pure medium. The capacity of the MIP was determined at 0.13 µmol g−1 of MIP. After application of a spiked bovine serum sample on the MIP, the selective retention was maintained (87 and 21%, respectively, on the MIP and on the corresponding non-imprinted polymer). Moreover, extraction on the MIP led to a cleaner extract compared to those issued from a conventional C18 sorbent.
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Zouaoui F, Bourouina-Bacha S, Bourouina M, Alcacer A, Bausells J, Jaffrezic-Renault N, Zine N, Errachid A. Electrochemical Impedance Spectroscopy Microsensor Based on Molecularly Imprinted Chitosan Film Grafted on a 4-Aminophenylacetic Acid (CMA) Modified Gold Electrode, for the Sensitive Detection of Glyphosate. Front Chem 2021; 9:621057. [PMID: 34046395 PMCID: PMC8145283 DOI: 10.3389/fchem.2021.621057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 04/06/2021] [Indexed: 12/20/2022] Open
Abstract
A novel electrochemical impedance spectroscopy (EIS) microsensor was implemented for the dosage of traces of glyphosate, in real and synthetic water samples. Molecularly imprinted chitosan was covalently immobilized on the surface of the microelectrode previously modified with 4-aminophenylacetic acid (CMA). The characterization of the resulting microelectrodes was carried out by using cyclic voltammetry measurement (CV), scanning electron microscopy (SEM), and electrochemical impedance spectrometry (EIS). EIS responses of the CS-MIPs/CMA/Au microsensor toward GLY was well-proportional to the concentration in the range from 0.31 × 10-9 to 50 × 10-6 mg/mL indicating a good correlation. The detection limit of GLY was 1 fg/mL (S/N = 3). Moreover, this microsensor showed good reproducibility and repeatability, high selectivity, and can be used for the detection of GLY in river water.
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Affiliation(s)
- Fares Zouaoui
- Institut des Sciences Analytiques, Université de Lyon, Villeurbanne, France.,Département de Génie des Procédés, Faculté de Technologie, Université de Bejaia, Bejaia, Algeria
| | - Saliha Bourouina-Bacha
- Département de Génie des Procédés, Faculté de Technologie, Université de Bejaia, Bejaia, Algeria
| | - Mustapha Bourouina
- Département de Génie des Procédés, Faculté de Technologie, Université de Bejaia, Bejaia, Algeria.,Departement de Chimie, Faculté des Sciences Exactes, Université de Bejaia, Bejaia, Algeria
| | - Albert Alcacer
- Institute of Microelectronics of Barcelona IMB-CNM-CSIC, Autonomous University of Barcelona, Barcelona, Spain
| | - Joan Bausells
- Institute of Microelectronics of Barcelona IMB-CNM-CSIC, Autonomous University of Barcelona, Barcelona, Spain
| | | | - Nadia Zine
- Institut des Sciences Analytiques, Université de Lyon, Villeurbanne, France
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Recent developments in non-enzymatic (bio)sensors for detection of pesticide residues: Focusing on antibody, aptamer and molecularly imprinted polymer. Talanta 2021; 232:122397. [PMID: 34074393 DOI: 10.1016/j.talanta.2021.122397] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 12/13/2022]
Abstract
The utilization of pesticides has been increased in recent years due to population growth and increasing urbanization. The constant use of pesticides has resulted in contamination of the environment and agricultural products with serious human health concerns associated with their use. Therefore, detection and quantification of pesticides by sensitive and selective methods is highly required in food safety management. Traditional detection methods cannot realize highly sensitive, selective and on-site detection, which limits their application. (Bio)sensors and (bio)assays are emerging tools with unique properties such as rapid, sensitive, efficient and portable detection. Among them, enzyme-based biosensors have been widely developed and some have even been commercialized. However, they suffer from some limitations such as instability and low reproducibility that originate from the nature of enzyme. Non-enzymatic (bio)sensors overcome the current limitations of enzyme-based detection methods and provide great potential for efficient, highly sensitive and low-cost detection assays using smart and miniaturized devices. In this study, we provide an overview of recent advances and new trends in optical and electrochemical non-enzymatic (bio)sensors for the detection of pesticides by focusing on antibody, aptamer and molecularly imprinted polymer (MIP) as recognition elements. Performance, advantages and drawbacks of the developed (bio)sensors are discussed well. The main advantage these recognition elements is their stability over an extended period of time compared to the enzymes. Furthermore, the combination of nanomaterials in these (bio)sensors can significantly improve their performance.
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Molecularly imprinted polymer amalgamation on narrow-gapped Archimedean-spiral interdigitated electrodes: resistance to electrolyte fouling in acidic medium. Mikrochim Acta 2021; 188:144. [PMID: 33791872 DOI: 10.1007/s00604-021-04794-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 03/18/2021] [Indexed: 10/21/2022]
Abstract
A conventional photolithography technique was used to fabricate three types of Archimedean-spiral interdigitated electrodes (AIDEs) containing concentric interlocking electrodes with different electrode and gap sizes, i.e., 150 μm (D1), 100 μm (D2), and 50 μm (D3). The precision of the fabrication was validated by surface topography using scanning electron microscopy, high power microscopy, 3D-nano profilometry, and atomic force microscopy. These AIDEs were fabricated with a tolerance of ± 6 nm in dimensions. The insignificant current variation at the pico-ampere range for all bare AIDEs further proved the reproducibility of the device. The large gap sized AIDE (D1) is insensitive to acidic medium, whereas D2 and D3 are insensitive to alkali medium. D2 was the best with regard to its electrical characterization. Furthermore, uniformly synthesized molecularly imprinted polymer (MIP) nanoparticles prepared with human blood clotting factor IX and its aptamer were in the size range 140 to 160 nm, attached on the sensing surface and characterized. The average thickness of deposited MIP film was 1.7 μm. EDX data shows the prominent peaks for silicon and aluminum substrates as 61.79 and 22.52%, respectively. The MIP nanoparticles-deposited sensor surface was characterized by applying it in electrolyte solutions, and smooth curves with the current flow were observed at pH lower than 8 and discriminated against alkali media. This study provides a new MIP amalgamated AIDE with nano-gapped fingers enabling analysis of other biomaterials due to its operation in an ideal buffer range.
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Gutiérrez-Climente R, Clavié M, Dumy P, Mehdi A, Subra G. Sol-gel process: the inorganic approach in protein imprinting. J Mater Chem B 2021; 9:2155-2178. [PMID: 33624655 DOI: 10.1039/d0tb02941f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Proteins play a central role in the signal transmission in living systems since they are able to recognize specific biomolecules acting as cellular receptors, antibodies or enzymes, being themselves recognized by other proteins in protein/protein interactions, or displaying epitopes suitable for antibody binding. In this context, the specific recognition of a given protein unlocks a range of interesting applications in diagnosis and in targeted therapies. Obviously, this role is already fulfilled by antibodies with unquestionable success. However, the design of synthetic artificial systems able to endorse this role is still challenging with a special interest to overcome limitations of antibodies, in particular their production and their stability. Molecular Imprinted Polymers (MIPs) are attractive recognition systems which could be an alternative for the specific capture of proteins in complex biological fluids. MIPs can be considered as biomimetic receptors or antibody mimics displaying artificial paratopes. However, MIPs of proteins remains a challenge due to their large size and conformational flexibility, their complex chemical nature with multiple recognition sites and their low solubility in most organic solvents. Classical MIP synthesis conditions result in large polymeric cavities and unspecific binding sites on the surface. In this review, the potential of the sol-gel process as inorganic polymerization strategy to overcome the drawbacks of protein imprinting is highlighted. Thanks to the mild and biocompatible experimental conditions required and the use of water as a solvent, the inorganic polymerization approach better suited to proteins than organic polymerization. Through numerous examples and applications of MIPs, we proposed a critical evaluation of the parameters that must be carefully controlled to achieve sol-gel protein imprinting (SGPI), including the choice of the monomers taking part in the polymerization.
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Affiliation(s)
| | | | - Pascal Dumy
- IBMM, Univ. Montpellier, CNRS, ENSCM, France.
| | - Ahmad Mehdi
- ICGM, Univ. Montpellier, CNRS, ENSCM, France
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7
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Rodriguez EL, Poddar S, Iftekhar S, Suh K, Woolfork AG, Ovbude S, Pekarek A, Walters M, Lott S, Hage DS. Affinity chromatography: A review of trends and developments over the past 50 years. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1157:122332. [PMID: 32871378 PMCID: PMC7584770 DOI: 10.1016/j.jchromb.2020.122332] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/08/2020] [Accepted: 08/12/2020] [Indexed: 12/16/2022]
Abstract
The field of affinity chromatography, which employs a biologically-related agent as the stationary phase, has seen significant growth since the modern era of this method began in 1968. This review examines the major developments and trends that have occurred in this technique over the past five decades. The basic principles and history of this area are first discussed. This is followed by an overview of the various supports, immobilization strategies, and types of binding agents that have been used in this field. The general types of applications and fields of use that have appeared for affinity chromatography are also considered. A survey of the literature is used to identify major trends in these topics and important areas of use for affinity chromatography in the separation, analysis, or characterization of chemicals and biochemicals.
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Affiliation(s)
| | - Saumen Poddar
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Sazia Iftekhar
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Kyungah Suh
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Ashley G Woolfork
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Susan Ovbude
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Allegra Pekarek
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Morgan Walters
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Shae Lott
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA.
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8
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Bouvarel T, Delaunay N, Pichon V. Selective extraction of cocaine from biological samples with a miniaturized monolithic molecularly imprinted polymer and on-line analysis in nano-liquid chromatography. Anal Chim Acta 2020; 1096:89-99. [DOI: 10.1016/j.aca.2019.10.046] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 10/25/2022]
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9
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Turiel E, Martín-Esteban A. Molecularly imprinted polymers-based microextraction techniques. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.06.016] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Wang P, Sun X, Su X, Wang T. Advancements of molecularly imprinted polymers in the food safety field. Analyst 2018; 141:3540-53. [PMID: 26937495 DOI: 10.1039/c5an01993a] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Molecularly imprinted technology (MIT) has been widely employed to produce stable, robust and cheap molecularly imprinted polymer (MIP) materials that possess selective binding sites for recognition of target analytes in food, such as pesticides, veterinary drugs, mycotoxins, illegal drugs and so on. Because of high selectivity and specificity, MIPs have drawn great attention in the food safety field. In this review, the recent developments of MIPs in various applications for food safety, including sample preparation, chromatographic separation, sensing, immunoassay etc., have been summarized. We particularly discuss the advancements and limitations in these applications, as well as attempts carried out for their improvement.
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Affiliation(s)
- Peilong Wang
- Institute of Quality Standards & Testing Technology for Agriculture Products, China Agricultural Academy of Science, Beijing 100081, P.R. China.
| | - Xiaohua Sun
- Institute of Chemistry, China Academy of Science, Beijing 100190, P.R. China and Institute of New Energy, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Xiaoou Su
- Institute of Quality Standards & Testing Technology for Agriculture Products, China Agricultural Academy of Science, Beijing 100081, P.R. China.
| | - Tie Wang
- Institute of Chemistry, China Academy of Science, Beijing 100190, P.R. China
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11
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Molecularly imprinted polymers for the determination of organophosphorus pesticides in complex samples. Talanta 2018; 176:465-478. [DOI: 10.1016/j.talanta.2017.08.067] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/16/2017] [Accepted: 08/20/2017] [Indexed: 11/20/2022]
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12
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Garcia-Soto MJ, Haupt K, Gonzato C. Synthesis of molecularly imprinted polymers by photo-iniferter polymerization under visible light. Polym Chem 2017. [DOI: 10.1039/c7py01113j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new prospect for the synthesis of molecularly imprinted polymers: photo-iniferter polymerization under visible light.
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Affiliation(s)
- Mariano J. Garcia-Soto
- Sorbonne Universités
- Université de Technologie de Compiègne
- CNRS Enzyme and Cell Engineering Laboratory
- Compiègne
- France
| | - Karsten Haupt
- Sorbonne Universités
- Université de Technologie de Compiègne
- CNRS Enzyme and Cell Engineering Laboratory
- Compiègne
- France
| | - Carlo Gonzato
- Sorbonne Universités
- Université de Technologie de Compiègne
- CNRS Enzyme and Cell Engineering Laboratory
- Compiègne
- France
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13
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Molecularly imprinted polymer nanomaterials and nanocomposites by controlled/living radical polymerization. Prog Polym Sci 2016. [DOI: 10.1016/j.progpolymsci.2016.04.001] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Kellens E, Bové H, Conradi M, D’Olieslaeger L, Wagner P, Landfester K, Junkers T, Ethirajan A. Improved Molecular Imprinting Based on Colloidal Particles Made from Miniemulsion: A Case Study on Testosterone and Its Structural Analogues. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00130] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Evelien Kellens
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan D, 3590 Diepenbeek, Belgium
| | - Hannelore Bové
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan D, 3590 Diepenbeek, Belgium
| | - Matthias Conradi
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan D, 3590 Diepenbeek, Belgium
| | - Lien D’Olieslaeger
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan D, 3590 Diepenbeek, Belgium
| | - Patrick Wagner
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan D, 3590 Diepenbeek, Belgium
| | - Katharina Landfester
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Tanja Junkers
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan D, 3590 Diepenbeek, Belgium
| | - Anitha Ethirajan
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan D, 3590 Diepenbeek, Belgium
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15
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Ayankojo AG, Tretjakov A, Reut J, Boroznjak R, Öpik A, Rappich J, Furchner A, Hinrichs K, Syritski V. Molecularly Imprinted Polymer Integrated with a Surface Acoustic Wave Technique for Detection of Sulfamethizole. Anal Chem 2016; 88:1476-84. [DOI: 10.1021/acs.analchem.5b04735] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Akinrinade George Ayankojo
- Department
of Materials Science, Tallinn University of Technology, Ehitajate
tee 5, 19086 Tallinn, Estonia
| | - Aleksei Tretjakov
- Department
of Materials Science, Tallinn University of Technology, Ehitajate
tee 5, 19086 Tallinn, Estonia
| | - Jekaterina Reut
- Department
of Materials Science, Tallinn University of Technology, Ehitajate
tee 5, 19086 Tallinn, Estonia
| | - Roman Boroznjak
- Department
of Materials Science, Tallinn University of Technology, Ehitajate
tee 5, 19086 Tallinn, Estonia
| | - Andres Öpik
- Department
of Materials Science, Tallinn University of Technology, Ehitajate
tee 5, 19086 Tallinn, Estonia
| | - Jörg Rappich
- Helmholtz-Zentrum
Berlin für Materialien und Energie GmbH, Institut für Silizium-Photovoltaik, Kekuléstr. 5, 12489 Berlin, Germany
| | - Andreas Furchner
- Leibniz-Institut für Analytische Wissenschaften−ISAS−e.V., Schwarzschildstraße 8, 12489 Berlin, Germany
| | - Karsten Hinrichs
- Leibniz-Institut für Analytische Wissenschaften−ISAS−e.V., Schwarzschildstraße 8, 12489 Berlin, Germany
| | - Vitali Syritski
- Department
of Materials Science, Tallinn University of Technology, Ehitajate
tee 5, 19086 Tallinn, Estonia
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Svoboda P, Combes A, Petit J, Nováková L, Pichon V, group BMAALS. Synthesis of a molecularly imprinted sorbent for selective solid-phase extraction of β-N-methylamino-l-alanine. Talanta 2015; 144:1021-9. [DOI: 10.1016/j.talanta.2015.07.052] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 07/10/2015] [Accepted: 07/17/2015] [Indexed: 10/23/2022]
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17
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Yang T, Zhang XY, Zhang XX, Chen ML, Wang JH. Chromium(III) Binding Phage Screening for the Selective Adsorption of Cr(III) and Chromium Speciation. ACS APPLIED MATERIALS & INTERFACES 2015; 7:21287-21294. [PMID: 26346061 DOI: 10.1021/acsami.5b05606] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The screening of suitable sorption medium is the key for highly selective solid phase extraction (SPE) of heavy metals. Herein, we demonstrate a universal protocol for producing selective SPE adsorbent through an evolutional approach based on phage display peptide library. By choosing chromium(III) as the model target, immobilized Cr(III) resins are first prepared using Ni-NTA affinity resins for the interaction with NEB heptapeptide phage library. After three rounds of positive biopanning against target Cr(III) and negative biopanning against foreign metal species, Cr(III) binding phages with high selectivity are obtained. The binding affinity and selectivity are further assessed with ELISA. The phages bearing peptide (YKASLIT) is finally chosen and immobilized on cytopore beads for Cr(III) preconcentration. The retained Cr(III) is efficiently recovered by 0.10 mol L(-1) HNO3 and quantified with ICP-MS. By loading 4000 μL of sample solution at pH 7.0 for 2 h and stripping with 400 μL of 0.10 mol L(-1) HNO3, a linear range of 0.05-0.50 μg L(-1) is achieved along with an enrichment factor of 7.1. The limit of detection is derived to be 15 ng L(-1) (3σ, n = 7) with a RSD of 3.6% (0.25 μg L(-1), n = 7). The procedure is validated by analyzing chromium content in a certified reference material GBW08608 (simulate water). In addition, chromium speciation in real water samples is demonstrated. Cr(VI) is first converted into Cr(III), and the latter subjected to the sorption onto the Cr(III) binding phage, followed by elution and quantification of the total chromium amount, and finally speciation is achieved by difference.
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Affiliation(s)
- Ting Yang
- Research Center for Analytical Sciences, Northeastern University , Box 332, Shenyang 110819, China
| | - Xiao-Yu Zhang
- Research Center for Analytical Sciences, Northeastern University , Box 332, Shenyang 110819, China
| | - Xiao-Xiao Zhang
- Research Center for Analytical Sciences, Northeastern University , Box 332, Shenyang 110819, China
| | - Ming-Li Chen
- Research Center for Analytical Sciences, Northeastern University , Box 332, Shenyang 110819, China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Northeastern University , Box 332, Shenyang 110819, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300071, China
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18
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Figueiredo L, Erny GL, Santos L, Alves A. Applications of molecularly imprinted polymers to the analysis and removal of personal care products: A review. Talanta 2015; 146:754-65. [PMID: 26695327 DOI: 10.1016/j.talanta.2015.06.027] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 06/09/2015] [Accepted: 06/13/2015] [Indexed: 12/25/2022]
Abstract
Personal-care products (PCPs) involve a variety of chemicals whose persistency along with their constant release into the environment raised concern to their potential impact on wildlife and humans health. Regarded as emergent contaminants, PCPs demonstrated estrogenic activity leading to the need of new methodologies to detect and remove those compounds from the environment. Molecular imprinting starts with a complex between a template molecule and a functional monomer, which is then polymerized in the presence of a cross-linker. After template removal, the polymer will contain specific cavities. Based on a good selectivity towards the template, molecularly imprinted polymers (MIPs) have been investigated as efficient materials for the analysis and extraction of the so called emergent pollutants contaminants. Rather than lowering the limit of detections, the key theoretical advantage of MIP over existing methodologies is the potential to target specific chemicals. This unique feature, sometime named specificity (as synonym to very high selectivity) allows to use cheap, simple and/or rapid quantitative techniques such as fast separation with ultra-violet (UV) detection, sensors or even spectrometric techniques. When a high degree of selectivity is achieved, samples extracted with MIPs can be directly analyzed without the need of a separation step. However, while some papers clearly demonstrated the specificity of their MIP toward the targeted PCP, such prove is often lacking, especially with real matrices, making it difficult to assess the success of the different approaches. This review paper focusses on the latest development of MIPs for the analysis of personal care products in the environment, with particular emphasis on design, preparation and practical applications of MIPs.
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Affiliation(s)
- L Figueiredo
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - G L Erny
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
| | - L Santos
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - A Alves
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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19
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Initiator-free synthesis of molecularly imprinted polymers by polymerization of self-initiated monomers. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.04.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Figueiredo L, Santos L, Alves A. Synthesis of a Molecularly Imprinted Polymer for Melamine Analysis in Milk by HPLC with Diode Array Detection. ADVANCES IN POLYMER TECHNOLOGY 2015. [DOI: 10.1002/adv.21506] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Leandro Figueiredo
- LEPABE - Laboratory for Process Engineering, Environment; Biotechnology and Energy; Faculdade de Engenharia da Universidade do Porto; 4200-465 Porto Portugal
| | - Lúcia Santos
- LEPABE - Laboratory for Process Engineering, Environment; Biotechnology and Energy; Faculdade de Engenharia da Universidade do Porto; 4200-465 Porto Portugal
| | - Arminda Alves
- LEPABE - Laboratory for Process Engineering, Environment; Biotechnology and Energy; Faculdade de Engenharia da Universidade do Porto; 4200-465 Porto Portugal
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Farzaneh S, Asadi E, Abdouss M, Barghi-Lish A, Azodi-Deilami S, Khonakdar HA, Gharghabi M. Molecularly imprinted polymer nanoparticles for olanzapine recognition: application for solid phase extraction and sustained release. RSC Adv 2015. [DOI: 10.1039/c4ra12725k] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to prepare efficient imprinted polymer nanoparticles from an olanzapine template for the controlled release of olanzapine as a therapeutic drug for CNS diseases.
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Affiliation(s)
- Sina Farzaneh
- Department of Polymer Engineering
- South Tehran Branch, Islamic Azad University Tehran
- Iran 1777613651
| | - Ebadullah Asadi
- Department of Chemistry
- Amirkabir University of Technology
- Tehran
- Iran
| | - Majid Abdouss
- Department of Chemistry
- Amirkabir University of Technology
- Tehran
- Iran
| | - Azam Barghi-Lish
- Department of Chemistry
- Faculty of Sciences
- Islamic Azad University, Rasht Branch
- Rasht
- Iran
| | | | | | - Mehdi Gharghabi
- Department of Toxicology-Pharmacology
- School of Pharmacy
- Tehran University of Medical Sciences
- Tehran
- Iran
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22
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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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Yang Y, Yu J, Yin J, Shao B, Zhang J. Molecularly imprinted solid-phase extraction for selective extraction of bisphenol analogues in beverages and canned food. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:11130-11137. [PMID: 25350221 DOI: 10.1021/jf5037933] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This study aimed to develop a selective analytical method for the simultaneous determination of seven bisphenol analogues in beverage and canned food samples by using a new molecularly imprinted polymer (MIP) as a sorbent for solid-phase extraction (SPE). Liquid chromatography coupled to triple-quadruple tandem mass spectrometry (LC-MS/MS) was used to identify and quantify the target analytes. The MIP-SPE method exhibited a higher level of selectivity and purification than the traditional SPE method. The developed procedures were further validated in terms of accuracy, precision, and sensitivity. The obtained recoveries varied from 50% to 103% at three fortification levels and yielded a relative standard deviation (RSD, %) of less than 15% for all of the analytes. The limits of quantification (LOQ) for the seven analytes varied from 0.002 to 0.15 ng/mL for beverage samples and from 0.03 to 1.5 ng/g for canned food samples. This method was used to analyze real samples that were collected from a supermarket in Beijing. Overall, the results revealed that bisphenol A and bisphenol F were the most frequently detected bisphenols in the beverage and canned food samples and that their concentrations were closely associated with the type of packaging material. This study provides an alternative method of traditional SPE extraction for screening bisphenol analogues in food matrices.
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Affiliation(s)
- Yunjia Yang
- Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Research Centre for Preventive Medicine , Beijing 100013, China
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24
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Dai H, Xiao D, He H, Li H, Yuan D, Zhang C. Synthesis and analytical applications of molecularly imprinted polymers on the surface of carbon nanotubes: a review. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1376-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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25
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Li B, Xu J, Hall AJ, Haupt K, Tse Sum Bui B. Water-compatible silica sol-gel molecularly imprinted polymer as a potential delivery system for the controlled release of salicylic acid. J Mol Recognit 2014; 27:559-65. [DOI: 10.1002/jmr.2383] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2013] [Revised: 03/11/2014] [Accepted: 04/11/2014] [Indexed: 11/12/2022]
Affiliation(s)
- Bin Li
- CNRS Enzyme and Cell Engineering Laboratory; Compiègne University of Technology; Rue Roger Couttolenc, CS 60319 60203 Compiègne Cedex France
| | - Jingjing Xu
- CNRS Enzyme and Cell Engineering Laboratory; Compiègne University of Technology; Rue Roger Couttolenc, CS 60319 60203 Compiègne Cedex France
| | - Andrew J. Hall
- Medway School of Pharmacy; Universities of Greenwich and Kent at Medway; Chatham UK
| | - Karsten Haupt
- CNRS Enzyme and Cell Engineering Laboratory; Compiègne University of Technology; Rue Roger Couttolenc, CS 60319 60203 Compiègne Cedex France
| | - Bernadette Tse Sum Bui
- CNRS Enzyme and Cell Engineering Laboratory; Compiègne University of Technology; Rue Roger Couttolenc, CS 60319 60203 Compiègne Cedex France
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26
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Moein MM, Javanbakht M, Akbari-adergani B. Molecularly imprinted polymer cartridges coupled on-line with high performance liquid chromatography for simple and rapid analysis of human insulin in plasma and pharmaceutical formulations. Talanta 2014; 121:30-6. [DOI: 10.1016/j.talanta.2013.12.011] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 12/02/2013] [Accepted: 12/04/2013] [Indexed: 12/16/2022]
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27
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Adamusova H, Bosakova Z, Coufal P, Pacakova V. Analysis of estrogens and estrogen mimics in edible matrices--a review. J Sep Sci 2014; 37:885-905. [PMID: 24488827 DOI: 10.1002/jssc.201301234] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 01/23/2014] [Accepted: 01/23/2014] [Indexed: 01/12/2023]
Abstract
This review provides a brief survey of the biological effects of selected endocrine-disrupting compounds that are formed after internal exposure of organisms. Further, the present analytical methods available for the determination of these compounds in foodstuffs are critically evaluated. The attention is primarily devoted to the methods for sample pretreatment, which are the main source of errors and are usually the most time-consuming step of the whole analysis. This review is focused on selected natural and synthetic estrogens, estrogen conjugates, and chemical additives used in the plastic industry that can act as estrogen mimics.
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Affiliation(s)
- Hana Adamusova
- Department of Analytical Chemistry, Charles University in Prague, Prague, Czech Republic
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Development of a selective solid phase extraction method for nitro musk compounds in environmental waters using a molecularly imprinted sorbent. Talanta 2013; 110:128-34. [DOI: 10.1016/j.talanta.2013.02.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 02/01/2013] [Accepted: 02/11/2013] [Indexed: 11/24/2022]
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31
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Identification of the nitroaromatic explosives in post-blast samples by online solid phase extraction using molecularly imprinted silica sorbent coupled with reversed-phase chromatography. Anal Bioanal Chem 2013; 405:5237-47. [DOI: 10.1007/s00216-013-6921-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 03/13/2013] [Accepted: 03/15/2013] [Indexed: 10/27/2022]
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32
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Martín-Esteban A. Molecularly-imprinted polymers as a versatile, highly selective tool in sample preparation. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2012.09.023] [Citation(s) in RCA: 237] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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33
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A Novel Molecularly Imprinted Polymer for the Selective Removal of Chlorophyll from Heavily Pigmented Green Plant Extracts prior to Instrumental Analysis. J CHEM-NY 2013. [DOI: 10.1155/2013/540240] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A novel molecularly imprinted polymer (MIP) powder designed for the selective removal of interfering chlorophyll pigment from heavily pigmented green plant extracts during pesticide residue analysis or analysis for bioactives in natural product research is reported. The polymer powder imprinted with chlorophyllawas synthesized by copolymerizing the functional and cross-linking monomers, methacrylic acid (MAA) and ethylene glycol dimethacrylate (EGDMA), respectively. During batch rebinding experiments, the MIP effectively removed chlorophyll from neat chlorophyll standards, green medicinal plants, and spinach extracts with determined absorbance as high as 2.501 absorbance units (Au) to as low as 0.084 Au after the optimum quantity of the MIP (170 mg mL−1) was added as the adsorbent prior to instrumental analysis. The determined 0.084 Au absorbance was far below the absorbance of 2% chlorophyll (0.401 Au) regarded as the cut-off point for interfering chlorophyll. Thus the newly developed polymer presents itself as a suitable adsorbent for the selective removal of chlorophyll from heavily pigmented, chlorophyll containing extracts.
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34
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HUANG YH, XU Y, HE QH, CAO YS, DU BB. Determination of Sulfadiazine Residues in Pork by Molecular Imprinted Column Coupling with High Performance Liquid Chromatography. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2012. [DOI: 10.1016/s1872-2040(11)60558-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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35
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Ton XA, Acha V, Haupt K, Tse Sum Bui B. Direct fluorimetric sensing of UV-excited analytes in biological and environmental samples using molecularly imprinted polymer nanoparticles and fluorescence polarization. Biosens Bioelectron 2012; 36:22-8. [PMID: 22541891 DOI: 10.1016/j.bios.2012.03.033] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Revised: 03/01/2012] [Accepted: 03/21/2012] [Indexed: 11/15/2022]
Abstract
A rapid, robust, sensitive and economic sensing method, based on a molecularly imprinted polymer (MIP) synthetic antibody mimic, and fluorescence polarization analysis, for the direct detection of UV-excited fluorescent analytes in food and environmental samples was developed. Fluoroquinolone (FQ) antibiotics were used as fluorescent model analytes. Water-compatible MIP nanoparticles were synthesized with enrofloxacin (ENRO) as the imprinting template. Fluorescence polarization measurements then allow the direct determination of the amount of ENRO and other structurally related piperazine-based fluoroquinolones that bind to the MIP. No separation step was required since this technique distinguishes in situ analyte molecules bound to the MIP from the free analyte in solution. This assay was successfully applied for the first time to determine FQs in real samples, i.e. tap water and milk, without any prior concentration step, by simply adding a known amount of MIP. No interference by the sample components was observed even though the excitation was in the UV region. In tap water, a low limit of detection of 0.1 nM for ENRO was achieved with 5 μg mL(-1) of MIP. In milk, ENRO and danofloxacin, whose MRLs have been fixed at 0.28 μM and 0.08 μM, respectively, could be selectively measured and distinguished from other families of antibiotics. The procedure is very easy and practical as it consists of simply precipitating the milk proteins with acetonitrile and adding buffer and MIP to the supernatant before reading the polarization values with a spectrofluorimeter.
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Affiliation(s)
- Xuan-Anh Ton
- Compiègne University of Technology, UMR CNRS 6022, Compiègne, France.
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36
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Tse Sum Bui B, Haupt K. Preparation and evaluation of a molecularly imprinted polymer for the selective recognition of testosterone--application to molecularly imprinted sorbent assays. J Mol Recognit 2012; 24:1123-9. [PMID: 22038819 DOI: 10.1002/jmr.1162] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Biomimetic testosterone receptors were synthesized via molecular imprinting for use as antibody mimics in immunoassays. As evaluated by radioligand binding assays, imprinted polymers prepared in acetonitrile were very specific for testosterone because the nonimprinted control polymers bound virtually no radiolabeled testosterone. The polymers present an appreciable affinity, with association constants of K(a) = 3.3 x 10(7) M(- 1) (high-affinity binding sites). The binding characteristics of the polymers were also evaluated in aqueous environment to study their viabilities as alternatives to antibodies in molecularly imprinted sorbent assays. Compared with the testosterone-specific antibodies present in commercial kits, our molecularly imprinted polymers are somewhat less sensitive but show a high selectivity.
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Affiliation(s)
- Bernadette Tse Sum Bui
- Compiègne University of Technology, UMR CNRS 6022, B.P. 20529, 60205, Compiègne Cedex, France.
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37
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Cichna-Markl M. Sample clean-up by sol-gel immunoaffinity chromatography for the determination of bisphenol A in food and urine. Methods 2011; 56:186-91. [PMID: 21871961 DOI: 10.1016/j.ymeth.2011.08.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Revised: 08/10/2011] [Accepted: 08/11/2011] [Indexed: 10/17/2022] Open
Abstract
Bisphenol A (2,2-bis(4-hydroxyphenyl)propane, BPA) is an industrial chemical mainly used as a monomer in the synthesis of polycarbonates and epoxy resins. BPA has been shown to elicit estrogenic effects via binding to the nuclear estrogen receptors α and β. Food is considered as the major source of BPA exposure for the general human population. When incorporated into the body, BPA is metabolised in the liver, mainly to BPA glucuronide, and excreted via the urine. The present paper presents analytical methods for the determination of BPA concentrations in foodstuffs and the determination of free and total (free plus conjugated) BPA in urine samples. The paper provides protocols for the preparation and operation of sol-gel immunoaffinity columns and their application to remove interfering matrix compounds and to enrich BPA. In addition, the paper points out major sources of systematic errors in BPA analysis and describes how they can be avoided.
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Affiliation(s)
- Margit Cichna-Markl
- Department of Analytical Chemistry, University of Vienna, Währinger Straße 38, A-1090 Vienna, Austria.
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38
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Abstract
So far, solid phase extraction, the use of MycoSep columns and immunoaffinity chromatography are the most common clean-up methods in mycotoxin analysis. Among these methods, immunoaffinity chromatography offers the highest selectivity and therefore the highest efficiency in removing interfering matrix compounds and enriching the analyte. Common immunoaffinity columns are prepared by covalently binding the antibodies to a solid support material which, due to the harsh conditions applied, frequently lowers their affinity for the antigen. The review article presents new strategies which have been developed to overcome this problem: sol-gel immunoaffinity chromatography, immuno-ultrafiltration, the use of aptamers as selective ligands and the application of molecularly imprinted polymers. The present paper covers the principles as well as the application of these approaches for sample clean-up in mycotoxin analysis.
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Affiliation(s)
- M. Cichna-Markl
- Department of Analytical Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
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39
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Moein MM, Javanbakht M, Akbari-adergani B. Molecularly imprinted polymer cartridges coupled on-line with high performance liquid chromatography for simple and rapid analysis of dextromethorphan in human plasma samples. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:777-82. [DOI: 10.1016/j.jchromb.2011.02.031] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 02/18/2011] [Accepted: 02/19/2011] [Indexed: 10/18/2022]
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40
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Design of an imprinted clean-up method for mycophenolic acid in maize. J Chromatogr A 2011; 1218:1122-30. [DOI: 10.1016/j.chroma.2010.12.085] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2010] [Revised: 12/17/2010] [Accepted: 12/20/2010] [Indexed: 11/21/2022]
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41
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Barahona F, Turiel E, Cormack PAG, Martín-Esteban A. Synthesis of core-shell molecularly imprinted polymer microspheres by precipitation polymerization for the inline molecularly imprinted solid-phase extraction of thiabendazole from citrus fruits and orange juice samples. J Sep Sci 2011; 34:217-24. [DOI: 10.1002/jssc.201000277] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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42
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De Smet D, Dubruel P, Van Peteghem C, De Saeger S. Development of a molecularly imprinted polymer for patulin in apple juice. WORLD MYCOTOXIN J 2011. [DOI: 10.3920/wmj2010.1276] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The design of imprinted polymers selective towards patulin (PAT) and their application in food analysis are reported for the first time. Different templates, functional monomers and molar ratios were evaluated related to binding capacity and specificity. Besides the toxin itself, the implementation of structural analogues (2-hydroxynicotinic acid, 5-indanol and 3-hydroxyphtalic anhydride) as templates was evaluated. A molecularly imprinted solid-phase extraction (MISPE) procedure was optimised for the selective clean-up of apple juice samples. Depending on the spiked concentration, recoveries after MISPE and non-imprinted solid-phase extraction varied respectively from 60% to 66% and from 40% to 41%. Limit of detection and limit of quantification were 10.0 µg/kg and 33.3 µg/kg, respectively. Equilibrium experiments and Scatchard analysis disclosed the presence of two classes of binding sites in the imprinted polymer. The dissociation constant (KD) of the higher affinity binding sites was 3.3 µmol/l, while the KD of the lower affinity binding sites was 260.7 µmol/l. The performance of the molecularly imprinted polymer throughout the clean-up was compared to liquid-liquid extraction and a C18 sorbent. Cross-reactivity experiments demonstrated that MISPE was substantially more selective than C18 clean-up. Moreover chromatograms, with less interfering peaks, were observed with MISPE resulting in a sensitive and reliable quantification of PAT.
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Affiliation(s)
- D. De Smet
- Faculty of Pharmaceutical Sciences, Laboratory of Food Analysis, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
| | - P. Dubruel
- Faculty of Sciences, Polymer Chemistry and Biomaterials Research Group, Ghent University, Krijgslaan 281, 9000 Ghent, Belgium
| | - C. Van Peteghem
- Faculty of Pharmaceutical Sciences, Laboratory of Food Analysis, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
| | - S. De Saeger
- Faculty of Pharmaceutical Sciences, Laboratory of Food Analysis, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
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Bompart M, Haupt K, Ayela C. Micro and Nanofabrication of Molecularly Imprinted Polymers. Top Curr Chem (Cham) 2011; 325:83-110. [DOI: 10.1007/128_2011_308] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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45
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Haupt K, Linares AV, Bompart M, Bui BTS. Molecularly Imprinted Polymers. Top Curr Chem (Cham) 2011; 325:1-28. [DOI: 10.1007/128_2011_307] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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46
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Chromatography, Solid-Phase Extraction, and Capillary Electrochromatography with MIPs. Top Curr Chem (Cham) 2010; 325:267-306. [DOI: 10.1007/128_2010_100] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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47
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Tse Sum Bui B, Haupt K. Molecularly imprinted polymers: synthetic receptors in bioanalysis. Anal Bioanal Chem 2010; 398:2481-92. [PMID: 20845034 DOI: 10.1007/s00216-010-4158-x] [Citation(s) in RCA: 139] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Revised: 08/19/2010] [Accepted: 08/19/2010] [Indexed: 10/19/2022]
Abstract
Molecularly imprinted polymers (MIPs) are tailor-made synthetic materials possessing specific cavities designed for a target molecule. Since they recognise their target analyte with affinities and selectivities comparable to those of antibody-antigen, enzyme-substrate and ligand-receptor interactions, they are often referred to as synthetic receptors or plastic antibodies. In this review, we describe the great potential and recent developments of MIPs in affinity separations, with emphasis on their application to the solid-phase extraction (SPE) of analytes from complex matrices. Research efforts made in this field to obtain water-compatible polymers for their applicability in aqueous environments are described. We particularly discuss problems encountered in the use of MIPs in SPE and the attempts carried out to improve their efficiency.
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Abstract
The determination of chlorpyrifos at low ngL-1 levels in wastewater requires highly selective and sensitive analytical procedures. The removal of matrix components during sample preparation results in significant benefits towards reducing the matrix effects during GC analysis. Therefore this work describes a simple method to enrich and clean up chlorpyrifos from sewage water using molecularly imprinted solid phase extraction (MISPE). Final analysis was performed by gas chromatography. The performance of this method has been evaluated in water samples in terms of recovery, precision, and method quantification limit. Recovery for chlorpyrifos ranged between 99 and 105% with RSD values below 7.9%. The performance of the method was further emphasized by the study of different water samples. In these samples, chlorpyrifos were detected in concentration above method quantification limits ranging from 50 to 3000 ngL-1.
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50
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Molecularly imprinted polymers for sample preparation: A review. Anal Chim Acta 2010; 668:87-99. [DOI: 10.1016/j.aca.2010.04.019] [Citation(s) in RCA: 389] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 04/08/2010] [Accepted: 04/08/2010] [Indexed: 11/18/2022]
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