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Biya S, Negash N, Hailu T, Tesfaye G, Yaya EE. Highly sensitive square wave voltammetric method for determination of brucine in artificial urine samples based on choline chloride modified glassy carbon electrode. Heliyon 2023; 9:e14544. [PMID: 37101509 PMCID: PMC10123166 DOI: 10.1016/j.heliyon.2023.e14544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
This paper demonstrates a highly sensitive Voltammetric sensor for determination of brucine (BRU) in artificial urine sample based on choline chloride modified glassy carbon electrode (ChCl/GCE). The simple and cost effective modification was performed by electrodeposition of choline chloride on glassy carbon electrode surface using cyclic voltammetry technique. The modified electrode surface was characterized by electrochemical, spectroscopic and microscopic imaging. The electrode yields a well-resolved peak current for the irreversible oxidation of brucine in the first scan and a pair of quasi-reversible peaks during the second scan. The CV study indicates that brucine undergoes an adsorption controlled electrochemical process with equal number of electrons and protons transfer on the ChCl/GCE. The SWV result shows that the reduction peak current of BRU at the ChCl/GCE was linear in the range of 0.001 μM-10 μM with limit of detection 8 × 10-5 μM, limit of quantification 2.6 × 10-4 μM and sensitivity of 116.4 μA/μM. The ChCl/GCE also showed an excellent selectivity, reproducibility and long-time stability towards the electrochemical reduction of Brucine. Moreover, the practical applicability of the fabricated ChCl/GCE was examined in order to determine BRU in artificial urine samples with recovery ranging from 95.5 to 102.7%. The validity of the developed method was confirmed by chromatographic techniques, high-performance liquid chromatography (HPLC) and the results obtained are consistent the HPLC method.
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Wang B, Hong J, Liu C, Zhu L, Jiang L. An Electrochemical Molecularly Imprinted Polymer Sensor for Rapid β-Lactoglobulin Detection. SENSORS (BASEL, SWITZERLAND) 2021; 21:8240. [PMID: 34960338 PMCID: PMC8703442 DOI: 10.3390/s21248240] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 12/28/2022]
Abstract
Facile detection of β-lactoglobulin is extraordinarily important for the management of the allergenic safety of cow's milk and its dairy products. A sensitive electrochemical sensor based on a molecularly imprinted polymer-modified carbon electrode for the detection of β-lactoglobulin was successfully synthesized. This molecularly imprinted polymer was prepared using a hydrothermal method with choline chloride as a functional monomer, β-lactoglobulin as template molecule and ethylene glycol dimethacrylate as crosslinking agent. Then, the molecularly imprinted polymer was immobilized on polyethyleneimine (PEI)-reduced graphene oxide (rGO)-gold nanoclusters (Au-NCs) to improve the sensor's selectivity for β-lactoglobulin. Under optimal experimental conditions, the designed sensor showed a good response to β-lactoglobulin, with a linear detection range between 10-9 and 10-4 mg/mL, and a detection limit of 10-9 mg/mL (S/N = 3). The developed electrochemical sensor showed a high correlation in the detection of β-lactoglobulin in four different milk samples from the market, indicating that the sensor can be used with actual sample.
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Affiliation(s)
- Bixuan Wang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China;
| | - Jingyi Hong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China; (J.H.); (C.L.); (L.J.)
| | - Chun Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China; (J.H.); (C.L.); (L.J.)
| | - Liying Zhu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China;
| | - Ling Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China; (J.H.); (C.L.); (L.J.)
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Chen Y, Zhao F, Zeng B. Fabrication of surface molecularly imprinted electrochemical sensor for the sensitive quantification of chlortetracycline with ionic liquid and MWCNT improving performance. Talanta 2021; 239:123130. [PMID: 34920256 DOI: 10.1016/j.talanta.2021.123130] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/03/2021] [Accepted: 12/05/2021] [Indexed: 01/24/2023]
Abstract
Chlortetracycline (CTC) is a widely used broad-spectrum antibiotic, its residue likely occurs in the environment and foods, bringing some negative effects to human health. Hence the detection and quantification of CTC in environmental and food samples is relevant. Herein, a novel electrochemical sensor based on surface molecularly imprinted polymer (SMIP) was constructed for the quantitative detection of CTC. The SMIP was synthesized by using ionic liquid (IL) functionalized MWCNT (MWCNT-IL) as supporter, 1-carboxymethyl-3-vinylimidazolium bromide (IL1) as functional monomer, CTC as template, ethylene glycol dimethyl acrylate as crosslinker, and azobisisobutyronitrile as initiator. The obtained composite IL1-SMIP exhibited high adsorption capacity for CTC and the imprinting factor was ca. 4.1. It was found that IL played an important role in improving the property of SMIP, which was also evaluated by DFT-based calculation. The resulting sensor IL1-SMIP/MWCNT-IL/GCE showed high selectivity, sensitivity and reproducibility. CTC could be quantified from 0.4 μM to 55 μM with a detection limit of 0.08 μM (S/N = 3) under the optimized conditions. The practical applicability of the sensor was demonstrated successfully by determining CTC in real samples.
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Affiliation(s)
- Yanran Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei Province, PR China
| | - Faqiong Zhao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei Province, PR China
| | - Baizhao Zeng
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, Hubei Province, PR China.
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Mary YS, Mary YS, Armaković S, Armaković SJ, Yadav R, Celik I, Mane P, Chakraborty B. Stability and reactivity study of bio-molecules brucine and colchicine towards electrophile and nucleophile attacks: Insight from DFT and MD simulations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116192] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Liu Z, Zhong F, Guo Y, Liu M. A Novel Strategy to Prepare Palladium‐silver Nano‐alloy by Methanol Reduction for Brucine Electrochemical Detection. ELECTROANAL 2020. [DOI: 10.1002/elan.202060430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhiguang Liu
- Institute of Environmental Science Shanxi University Taiyuan 030006 China
| | - Faqiang Zhong
- Institute of Environmental Science Shanxi University Taiyuan 030006 China
| | - Yujing Guo
- Institute of Environmental Science Shanxi University Taiyuan 030006 China
| | - Min Liu
- China Institute of Nuclear Information and Economics Beijing 100048 China
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Xi W, Zhai J, Zhang Y, Tian L, Zhang Z. Integrating brucine with carbon nanotubes toward electrochemical sensing of hydroxylamine. Mikrochim Acta 2020; 187:343. [PMID: 32444900 DOI: 10.1007/s00604-020-04315-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 05/08/2020] [Indexed: 11/30/2022]
Abstract
Based on the intrinsic electrochemical features of brucine integrated with carbon nanotubes (brucine/SWNTs), dimeric quinoid brucine was electrochemically generated by electroactivation of a brucine/SWNTs-modified GC electrode and used as a novel electrocatalyst for efficient electro-oxidation of hydroxylamine (HA). The electrocatalytic activity was investigated with cyclic voltammetry in the range pH 2.0 to pH 11.0, and the best electrocatalytic performance of the electrocatalyst was obtained at pH 10.0. By taking advantage of the electrocatalytic activity of the dimeric quinoid brucine toward HA, we have developed an electrochemical sensor for HA measurements based on a brucine/SWNTS-modified GC electrode using amperometry with the applied potential of + 0.1 V (vs. Ag/AgCl). Under the optimized conditions, the current response toward HA concentration shows a linear relationship in the dynamic ranges of 0.1-10 μM and 10-1000 μM with a detection limit of 0.021 μM based on the 3σ criterion. The sensor was used to assay HA in pharmaceuticals including hydroxyurea tablets and pralidoxime iodide injections with satisfactory results. The spike-and-recovery for samples of tap water (n = 9) and lake water (n = 9) was within 97.17-100.16%. Graphical abstract Schematic illustration of electrochemical sensing of hydroxylamine (HA) enabled by integrating brucine with single-walled carbon nanotube (brucine/SWNTs) based on electro-activation of brucine/SWNTs-modified GC electrode.
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Affiliation(s)
- Weiyan Xi
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Jiali Zhai
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Yunjing Zhang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Lei Tian
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Zipin Zhang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China.
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Gui R, Guo H, Jin H. Preparation and applications of electrochemical chemosensors based on carbon-nanomaterial-modified molecularly imprinted polymers. NANOSCALE ADVANCES 2019; 1:3325-3363. [PMID: 36133548 PMCID: PMC9419493 DOI: 10.1039/c9na00455f] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 07/29/2019] [Indexed: 05/25/2023]
Abstract
The past few decades have witnessed a rapid development in electrochemical chemosensors (ECCSs). The integration of carbon nanomaterials (CNMs) and molecularly imprinted polymers (MIPs) has endowed ECCSs with high selectivity and sensitivity toward target detection. Due to the integrated merits of MIPs and CNMs, CNM-modified MIPs as ECCSs have been widely reported and have excellent detection applications. This review systematically summarized the general categories, preparation strategies, and applications of ECCSs based on CNM-modified MIPs. The categories include CNM-modified MIPs often hybridized with various materials and CNM-encapsulated or CNM-combined imprinting silica and polymers on working electrodes or other substrates. The preparation strategies include the polymerization of MIPs on CNM-modified substrates, co-polymerization of MIPs and CNMs on substrates, drop-casting of MIPs on CNM-modified substrates, self-assembly of CNMs/MIP complexes on substrates, and so forth. We discussed the in situ polymerization, electro-polymerization, and engineering structures of CNM-modified MIPs. With regard to potential applications, we elaborated the detection mechanisms, signal transducer modes, target types, and electrochemical sensing of targets in real samples. In addition, this review discussed the present status, challenges, and prospects of CNM-modified MIP-based ECCSs. This comprehensive review is desirable for scientists from broad research fields and can promote the further development of MIP-based functional materials, CNM-based hybrid materials, advanced composites, and hybrid materials.
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Affiliation(s)
- Rijun Gui
- College of Chemistry and Chemical Engineering, Intellectual Property Research Institute, Qingdao University Shandong 266071 PR China +86 532 85953981 +86 532 85953981
| | - Huijun Guo
- Advanced Fiber and Composites Research Institute, Jilin Institute of Chemical Technology Jilin 132022 PR China
| | - Hui Jin
- College of Chemistry and Chemical Engineering, Intellectual Property Research Institute, Qingdao University Shandong 266071 PR China +86 532 85953981 +86 532 85953981
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Sobiech M, Bujak P, Luliński P, Pron A. Semiconductor nanocrystal-polymer hybrid nanomaterials and their application in molecular imprinting. NANOSCALE 2019; 11:12030-12074. [PMID: 31204762 DOI: 10.1039/c9nr02585e] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Quantum dots (QDs) are attractive semiconductor fluorescent nanomaterials with remarkable optical and electrical properties. The broad absorption spectra and high stability of QD transducers are advantageous for sensing and bioimaging. Molecular imprinting is a technique for manufacturing synthetic polymeric materials with a high recognition ability towards a target analyte. The high selectivity of the molecularly imprinted polymers (MIPs) is a result of the fabrication process based on the template-tailored polymerization of functional monomers. The three-dimensional cavities formed in the polymer network can serve as the recognition elements of sensors because of their specificity and stability. Appending specific molecularly imprinted layers to QDs is a promising strategy to enhance the stability, sensitivity, and selective fluorescence response of the resulting sensors. By merging the benefits of MIPs and QDs, inventive optical sensors are constructed. In this review, the recent synthetic strategies used for the fabrication of QD nanocrystals emphasizing various approaches to effective functionalization in aqueous environments are discussed followed by a detailed presentation of current advances in QD conjugated MIPs (MIP-QDs). Frontiers in manufacturing of specific imprinted layers of these nanomaterials are presented and factors affecting the specific behaviour of an MIP shell are identified. Finally, current limitations of MIP-QDs are defined and prospects are outlined to amplify the capability of MIP-QDs in future sensing.
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Affiliation(s)
- Monika Sobiech
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Piotr Bujak
- Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland.
| | - Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, 02-097 Warsaw, Poland
| | - Adam Pron
- Warsaw University of Technology, Faculty of Chemistry, Noakowskiego 3, 00-664 Warsaw, Poland.
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Abstract
The PVP and its derivatives have been broadly applied in polymers, organic
syntheses, and catalysis processes. The crosslinked PVP is a well-known polymer support
for numerous reagents and catalysts. Cross-linked PVPs are commercially available polymers
and have attracted much attention over the past due to their interesting properties
such as the facile functionalization, high accessibility of functional groups, being nonhygroscopic,
easy to prepare, easy filtration, and swelling in many organic solvents. A
brief explanation of the reported applications of PVPs in different fields followed by the
discussion on the implementation of methodologies for catalytic efficiency of PVP-based
reagents in the organic synthesis is included. The aim is to summarize the literature under
a few catalytic categories and to present each as a short scheme involving reaction conditions.
In the text, discussions on the synthesis and the structural determination of some typical polymeric reagents
are presented, and the mechanisms of some organic reactions are given. Where appropriate, advantages
of reagents in comparison with the previous reports are presented. This review does not include patent literature.
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Affiliation(s)
- Nader Ghaffari Khaligh
- Nanotechnology and Catalysis Research Center, Institute of Postgraduate Studies, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Hanna S. Abbo
- Department of Chemistry, University of Basrah, Basrah, Iraq
| | - Mohd Rafie Johan
- Nanotechnology and Catalysis Research Center, Institute of Postgraduate Studies, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Zhou T, Ding L, Che G, Jiang W, Sang L. Recent advances and trends of molecularly imprinted polymers for specific recognition in aqueous matrix: Preparation and application in sample pretreatment. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.02.028] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Gui R, Jin H, Guo H, Wang Z. Recent advances and future prospects in molecularly imprinted polymers-based electrochemical biosensors. Biosens Bioelectron 2018; 100:56-70. [DOI: 10.1016/j.bios.2017.08.058] [Citation(s) in RCA: 262] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 08/08/2017] [Accepted: 08/27/2017] [Indexed: 01/13/2023]
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12
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Sensitive detection of brucine an anti-metastatic drug for hepatocellular carcinoma at carbon nanotubes – nafion composite based biosensor. Biosens Bioelectron 2017; 98:371-377. [DOI: 10.1016/j.bios.2017.07.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/04/2017] [Accepted: 07/05/2017] [Indexed: 01/13/2023]
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Wu Y, Ma Y, Pan J, Gu R, Luo J. Porous and Magnetic Molecularly Imprinted Polymers via Pickering High Internal Phase Emulsions Polymerization for Selective Adsorption of λ-Cyhalothrin. Front Chem 2017; 5:18. [PMID: 28401145 PMCID: PMC5368171 DOI: 10.3389/fchem.2017.00018] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 03/03/2017] [Indexed: 11/23/2022] Open
Abstract
A novel macroporous magnetic molecularly imprinted polymer (MMIPs) of was prepared by W/O Pickering (high internal phase emulsions) HIPEs polymerization, and then it was adopted as adsorbent for selective adsorption of λ-cyhalothrin (LC). In static conditions, adsorption capacity of LC increased rapidly in the first 60 min and reached to equilibrium in ~2.0 h. Excellent conformity of the second-order model confirmed the chemical nature of the interaction between the LC and imprinted sites. The fitting adsorption isotherm was a Langmuir type, and the maximum monolayer adsorption capacity at 298 K was 404.4 μmol g−1. Thermodynamic parameters suggested the specific adsorption at 298 K was an exothermic, spontaneous, and entropy decreased process. Competitive recognition studies of the MMIPs were performed with diethyl phthalate (DEP) and the structurally similar compound fenvalerate (FL), and the MMIPs, which displayed high selectivity for LC.
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Affiliation(s)
- Yunlong Wu
- School of Chemistry and Chemical Engineering, Jiangsu University Zhenjiang, China
| | - Yue Ma
- School of Chemistry and Chemical Engineering, Jiangsu University Zhenjiang, China
| | - Jianming Pan
- School of Chemistry and Chemical Engineering, Jiangsu University Zhenjiang, China
| | - Runxing Gu
- School of Chemistry and Chemical Engineering, Jiangsu University Zhenjiang, China
| | - Jialu Luo
- School of Chemistry and Chemical Engineering, Jiangsu University Zhenjiang, China
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Luo J, Huang J, Wu Y, Sun J, Wei W, Liu X. Synthesis of hydrophilic and conductive molecularly imprinted polyaniline particles for the sensitive and selective protein detection. Biosens Bioelectron 2017; 94:39-46. [PMID: 28249205 DOI: 10.1016/j.bios.2017.02.035] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 02/14/2017] [Accepted: 02/22/2017] [Indexed: 12/20/2022]
Abstract
In this work, a novel kind of water-dispersible molecular imprinted conductive polyaniline particles was prepared through a facile and efficient macromolecular co-assembly of polyaniline with amphiphilic copolymer, and applied as the molecular recognition element to construct protein electrochemical sensor. In our strategy, an amphiphilic copolymer P(AMPS-co-St) was first synthesized using 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) and styrene (St) as monomer, which could co-assemble with PANI in aqueous solution to generate PANI particles driven by the electrostatic interaction. During this process, ovalbumin (OVA) as template protein was added and trapped into the PANI NPs particles owing to their interactions, resulting in the formation of molecular imprinted polyaniline (MIP-PANI) particles. When utilizing the MIP-PANI particles as recognition element, the resultant imprinted PANI sensor not only exhibited good selectivity toward template protein (the imprinting factor α is 5.31), but also a wide linear range over OVA concentration from 10-11 to 10-6mgmL-1 with a significantly lower detection limit of 10-12mgmL-1, which outperformed most of reported OVA detecting methods. In addition, an ultrafast response time of less than 3min has also been demonstrated. The superior performance is ascribed to the water compatibility, large specific surface area of PANI particles and the electrical conductivity of PANI which provides a direct path for the conduction of electrons from the imprinting sites to the electrode surface. The outstanding sensing performance combined with its facile, quick, green preparation procedure as well as low production cost makes the MIP-PANI particles attractive in specific protein recognition and sensing.
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Affiliation(s)
- Jing Luo
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Jing Huang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yunan Wu
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jun Sun
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wei Wei
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xiaoya Liu
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
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Yáñez-Sedeño P, Campuzano S, Pingarrón JM. Electrochemical sensors based on magnetic molecularly imprinted polymers: A review. Anal Chim Acta 2017; 960:1-17. [PMID: 28193351 DOI: 10.1016/j.aca.2017.01.003] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 12/30/2016] [Accepted: 01/02/2017] [Indexed: 12/20/2022]
Abstract
Participation of magnetic component in molecularly imprinted polymers (MIPs) has facilitated enormously the incorporation of these polymeric materials on electrode surfaces allowing the design of electrochemical sensors with very attractive analytical characteristics in terms of simplicity, reproducibility, low fabrication cost, high sensitivity and selectivity and rapid assay time. The magnetically susceptible resultant MIPs (MMIPs) allowed a simple and fast elution of the template molecules from MMIPs, are easily and faster collected without filtration, centrifugation or other complex operations and are also faster assembled and removed from the electrode surface by simply using an external magnetic field. A wide range of different (nano)materials such as gold nanoparticles (AuNPs), graphene oxide, single-walled and multi-walled carbon nanotubes (SWCNTs and MWCNTs) as well as different electrode modifiers (ionic liquids (ILs) and surfactants/dispersants) have been incorporated into the MMIPs to improve the analytical performance of the resulting electrochemical sensors which have demonstrated great promise for determination of relevant analytes in environmental, food and clinical analyses.
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Affiliation(s)
- Paloma Yáñez-Sedeño
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040, Madrid, Spain.
| | - Susana Campuzano
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040, Madrid, Spain.
| | - José M Pingarrón
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040, Madrid, Spain.
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Zhao L, Yang J, Ye H, Zhao F, Zeng B. Preparation of hydrophilic surface-imprinted ionic liquid polymer on multi-walled carbon nanotubes for the sensitive electrochemical determination of imidacloprid. RSC Adv 2017. [DOI: 10.1039/c6ra25969c] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A hydrophilic ionic liquid monomer was immobilized on carboxylated MWNTs by ion exchange, then reversible addition–fragmentation chain transfer precipitation polymerization was performed in the presence of a template, imidacloprid.
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Affiliation(s)
- Lijuan Zhao
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Juan Yang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Huili Ye
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Faqiong Zhao
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Baizhao Zeng
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
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Luo J, Ma Q, Wei W, Zhu Y, Liu R, Liu X. Synthesis of Water-Dispersible Molecularly Imprinted Electroactive Nanoparticles for the Sensitive and Selective Paracetamol Detection. ACS APPLIED MATERIALS & INTERFACES 2016; 8:21028-21038. [PMID: 27463123 DOI: 10.1021/acsami.6b05440] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A novel kind of water-dispersible molecularly imprinted electroactive nanoparticles was prepared combining macromolecular self-assembly with molecularly imprinting technique employing paracetamol (PCM) as template molecule. An amphiphilic electroactive copolymer (P(NVC-EHA-AA), PNEA) containing carbazole group was first synthesized through a one-pot free radical copolymerization. The coassembly of the electroactive copolymers with the template molecules (PCM) in aqueous solution generated nanoparticles embedded with PCM, leading to the formation of molecularly imprinted electroactive nanoparticles (MIENPs). A robust MIP film was formed on the surface of electrode by electrodeposition of MIENPs and subsequent electropolymerization of the carbazole units in MIENPs. After the extraction of PCM molecules, a MIP sensor was successfully constructed. It should be noted that electropolymerization of the electroactive units in MIENPs creates cross-conjugated polymer network, which not only locks the recognition sites but also significantly accelerates the electron transfer and thus enhances the response signal of the MIP sensor. These advantages endowed the MIP sensor with good selectivity and high sensitivity for PCM detection. The MIP sensor could recognize PCM from its possible interfering substances with good selectivity. Under the optimal conditions, two linear ranges from 1 μM to 0.1 mM and 0.1 to 10 mM with a detection limit of 0.3 μM were obtained for PCM detection. The MIP sensor also showed good stability and repeatability, which has been successfully used to analyze PCM in tablets and human urine samples with satisfactory results.
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Affiliation(s)
- Jing Luo
- The Key Laboratory of Food Colloids, Biotechnology, Ministry of Education, School of Chemical, Material Engineering, Jiangnan University , Wuxi, Jiangsu, China 214122
| | - Qiang Ma
- The Key Laboratory of Food Colloids, Biotechnology, Ministry of Education, School of Chemical, Material Engineering, Jiangnan University , Wuxi, Jiangsu, China 214122
| | - Wei Wei
- The Key Laboratory of Food Colloids, Biotechnology, Ministry of Education, School of Chemical, Material Engineering, Jiangnan University , Wuxi, Jiangsu, China 214122
| | - Ye Zhu
- The Key Laboratory of Food Colloids, Biotechnology, Ministry of Education, School of Chemical, Material Engineering, Jiangnan University , Wuxi, Jiangsu, China 214122
| | - Ren Liu
- The Key Laboratory of Food Colloids, Biotechnology, Ministry of Education, School of Chemical, Material Engineering, Jiangnan University , Wuxi, Jiangsu, China 214122
| | - Xiaoya Liu
- The Key Laboratory of Food Colloids, Biotechnology, Ministry of Education, School of Chemical, Material Engineering, Jiangnan University , Wuxi, Jiangsu, China 214122
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18
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Recent progress in molecularly imprinted media by new preparation concepts and methodological approaches for selective separation of targeting compounds. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.08.008] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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19
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Nakamura Y, Matsunaga H, Haginaka J. Preparation of molecularly imprinted polymers for strychnine by precipitation polymerization and multistep swelling and polymerization and their application for the selective extraction of strychnine from nux-vomica
extract powder. J Sep Sci 2016; 39:1542-50. [DOI: 10.1002/jssc.201600027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/12/2016] [Accepted: 02/14/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Yukari Nakamura
- School of Pharmacy and Pharmaceutical Sciences; Mukogawa Women's University; Nishinomiya Japan
| | - Hisami Matsunaga
- School of Pharmacy and Pharmaceutical Sciences; Mukogawa Women's University; Nishinomiya Japan
| | - Jun Haginaka
- School of Pharmacy and Pharmaceutical Sciences; Mukogawa Women's University; Nishinomiya Japan
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20
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Wang HS, Song M, Hang TJ. Functional Interfaces Constructed by Controlled/Living Radical Polymerization for Analytical Chemistry. ACS APPLIED MATERIALS & INTERFACES 2016; 8:2881-2898. [PMID: 26785308 DOI: 10.1021/acsami.5b10465] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The high-value applications of functional polymers in analytical science generally require well-defined interfaces, including precisely synthesized molecular architectures and compositions. Controlled/living radical polymerization (CRP) has been developed as a versatile and powerful tool for the preparation of polymers with narrow molecular weight distributions and predetermined molecular weights. Among the CRP system, atom transfer radical polymerization (ATRP) and reversible addition-fragmentation chain transfer (RAFT) are well-used to develop new materials for analytical science, such as surface-modified core-shell particles, monoliths, MIP micro- or nanospheres, fluorescent nanoparticles, and multifunctional materials. In this review, we summarize the emerging functional interfaces constructed by RAFT and ATRP for applications in analytical science. Various polymers with precisely controlled architectures including homopolymers, block copolymers, molecular imprinted copolymers, and grafted copolymers were synthesized by CRP methods for molecular separation, retention, or sensing. We expect that the CRP methods will become the most popular technique for preparing functional polymers that can be broadly applied in analytical chemistry.
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Affiliation(s)
- Huai-Song Wang
- Department of Pharmaceutical Analysis, China Pharmaceutical University , Nanjing, 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education , Nanjing 210009, China
| | - Min Song
- Department of Pharmaceutical Analysis, China Pharmaceutical University , Nanjing, 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education , Nanjing 210009, China
| | - Tai-Jun Hang
- Department of Pharmaceutical Analysis, China Pharmaceutical University , Nanjing, 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education , Nanjing 210009, China
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21
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Pardeshi S, Singh SK. Precipitation polymerization: a versatile tool for preparing molecularly imprinted polymer beads for chromatography applications. RSC Adv 2016. [DOI: 10.1039/c6ra02784a] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Minireview on recent advances of application of MIPs prepared by precipitation polymerization for recognition of target analytes in complex matrices.
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Affiliation(s)
- Sushma Pardeshi
- Department of Forensic Chemistry
- Institute of Forensic Science
- Nagpur-440001
- India
| | - Sunit Kumar Singh
- Environmental Materials Division
- CSIR-National Environmental Engineering and Research Institute
- Nagpur-440020
- India
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22
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Molecularly imprinted polymer grown on multiwalled carbon nanotube surface for the sensitive electrochemical determination of amoxicillin. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.05.156] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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23
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Li Y, Zhao X, Li P, Huang Y, Wang J, Zhang J. Highly sensitive Fe 3 O 4 nanobeads/graphene-based molecularly imprinted electrochemical sensor for 17β-estradiol in water. Anal Chim Acta 2015; 884:106-13. [DOI: 10.1016/j.aca.2015.05.022] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 04/26/2015] [Accepted: 05/11/2015] [Indexed: 11/15/2022]
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24
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Li S, Yang K, Liu J, Jiang B, Zhang L, Zhang Y. Surface-Imprinted Nanoparticles Prepared with a His-Tag-Anchored Epitope as the Template. Anal Chem 2015; 87:4617-20. [DOI: 10.1021/ac5047246] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Senwu Li
- National Chromatographic R&A Center, Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Kaiguang Yang
- National Chromatographic R&A Center, Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Jianxi Liu
- National Chromatographic R&A Center, Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Bo Jiang
- National Chromatographic R&A Center, Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Lihua Zhang
- National Chromatographic R&A Center, Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Yukui Zhang
- National Chromatographic R&A Center, Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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25
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Zhao L, Zhao F, Zeng B. Synthesis of water-compatible surface-imprinted polymer via click chemistry and RAFT precipitation polymerization for highly selective and sensitive electrochemical assay of fenitrothion. Biosens Bioelectron 2014; 62:19-24. [PMID: 24973538 DOI: 10.1016/j.bios.2014.06.022] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 06/04/2014] [Accepted: 06/10/2014] [Indexed: 12/28/2022]
Abstract
A novel water-compatible fenitrothion imprinted polymer was prepared on Au nanoparticles (AuNPs) by click chemistry and reversible addition-fragmentation chain transfer (RAFT) precipitation polymerization (RAFTPP). The RAFT chain-transfer agent was synthesized on the surface of AuNPs using click chemistry, then an imprinted polymer with hydrophilic polymer brushes was prepared on the RAFT chain-transfer agent modified AuNPs by RAFTPP, mediated by hydrophilic polyethylene glycol macromolecular cochain-transfer agent. The obtained molecularly imprinted material showed improved accessibility to fenitrothion and recognition property in water medium. When the material was immobilized on an ionic liquid functionalized graphene coated glassy carbon electrode for the electrochemical determination of fenitrothion, the resulting electrochemical sensor presented linear response in the range of 0.01-5 μM, with a sensitivity of 6.1 μA/μM mm(2). The low limit of detection was 8 nM (S/N=3). The sensor was successfully applied to the determination of real samples and the recovery for standard added was 95-108%.
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Affiliation(s)
- Lijuan Zhao
- Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, PR China
| | - Faqiong Zhao
- Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, PR China
| | - Baizhao Zeng
- Key Laboratory of Analytical Chemistry for Biology and Medicine, (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, PR China.
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26
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Yang G, Zhao F. Electrochemical sensor for chloramphenicol based on novel multiwalled carbon nanotubes@molecularly imprinted polymer. Biosens Bioelectron 2014; 64:416-22. [PMID: 25280341 DOI: 10.1016/j.bios.2014.09.041] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 09/16/2014] [Accepted: 09/21/2014] [Indexed: 01/12/2023]
Abstract
Herein, we present a novel electrochemical sensor for the determination of chloramphenicol (CAP), which is based on multiwalled carbon nanotubes@molecularly imprinted polymer (MWCNTs@MIP), mesoporous carbon (CKM-3) and three-dimensional porous graphene (P-r-GO). Firstly, 3-hexadecyl-1-vinylimidazolium chloride (C16VimCl) was synthetized by using 1-vinylimidazole and 1-chlorohexadecane as precursors. Then, C16VImCl was used to improve the dispersion of MWCNT and as monomer to prepare MIP on MWCNT surface to obtain MWCNTs@MIP. After that, the obtained MWCNTs@MIP was coated on the CKM-3 and P-r-GO modified glassy carbon electrode to construct an electrochemical sensor for the determination of CAP. The parameters concerning this assay strategy were carefully considered. Under the optimal conditions, the electrochemical sensor offered an excellent response for CAP. The linear response ranges were 5.0 × 10(-9)-5 × 10(-7)mol L(-1) and 5.0 × 10(-7)-4.0 × 10(-6), respectively, and the detection limit was 1.0 × 10(-10)mol L(-1). The electrochemical sensor was applied to determine CAP in real samples with satisfactory results.
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Affiliation(s)
- Guangming Yang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China; Department of Resources and Environment, Baoshan University, Baoshan 678000, PR China
| | - Faqiong Zhao
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China.
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