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Wen Y, Zhao S, Yu Z, Gong W, Lu S, Li H, Wang J. Preparation of molecularly imprinted polymer for the specific adsorption and selective extraction of alkylresorcinols from whole wheat flour. Food Chem 2024; 454:139815. [PMID: 38820642 DOI: 10.1016/j.foodchem.2024.139815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/14/2024] [Accepted: 05/22/2024] [Indexed: 06/02/2024]
Abstract
Alkylresorcinols are important biomarkers for evaluating whole wheat foods. However, their structures encompass a broad spectrum of homologs, making isolating and analyzing individual alkylresorcinol notably challenging. Herein, we synthesized highly selective molecularly imprinted polymers (MIPs) utilizing a facile and cost-effective precipitation polymerization method and 5-heneicosylresorcinol (ARC21:0) as the template molecule. Various crucial preparation parameters were systematically optimized, such as different porogens, functional monomers, imprinting ratios, and polymerization time. The polymers were characterized through scanning electron microscopy and Fourier transform infrared spectroscopy, and their adsorption performances were thoroughly evaluated. MIPs exhibited a notably enhanced adsorption capacity compared with that of non-imprinted polymers, reaching an optimal adsorption amount of 71.75 mg·mL-1 and imprinting factor of 2.02. Altogether, the synthesized MIPs showed superior affinity and selectivity for ARC21:0, as confirmed by their selective extraction, suggesting their potential applications in the analysis, separation, and monitoring of ARC21:0 in whole wheat foods.
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Affiliation(s)
- Yangyang Wen
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Shichao Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Zhenjia Yu
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Weiwei Gong
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Shiyi Lu
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing, 100048, China
| | - Hongyan Li
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing, 100048, China.
| | - Jing Wang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing, 100048, China.
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Fazl F, Gholivand MB. Characterization and optimization of magnetic molecularly imprinted nanofibers for determination of sunitinib in human serum and capsule samples. Talanta 2024; 279:126588. [PMID: 39047626 DOI: 10.1016/j.talanta.2024.126588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 06/15/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024]
Abstract
This article reports a spectrofluorometric method for the determination of sunitinib (STB) drug based on molecularly imprinted nanofibers fabricated by the electrospinning method and modified by magnetic nanoparticles as sorbent. The characterization of magnetic molecularly imprinted nanofibers (MMINs) was carried out using X-ray diffraction (XRD), scanning electron microscope (SEM), and transmission electron microscopy (TEM), which confirmed the successful synthesis of MMINs with well-distributed magnetite nanoparticles. Drug adsorption and desorption were optimized and important parameters such as sample pH, nanofiber mass, adsorption and desorption time, eluent solvent and sample volume were analyzed. The results demonstrated that the MMINs act as a selective sorbent for STB and can be readily collected through an external magnetic field. Methanol was used as the best eluent solvent for STB desorption from MNIN. A linear correlation was observed between the STB concentrations and fluorescence intensities in the range of 0.01-15.0 mg L-1. The detection limit for this method was 0.002 mg L-1. The relative standard deviation (RSD) of 2.6 % for 1.0 mg L-1 and 1.1 % for 10 mg L-1 of STB (n = 3) were obtained, which indicates that the developed method is precise in determining STB. Human serum and capsule analysis show the applicability of the proposed sensor for real samples.
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Affiliation(s)
- Fariba Fazl
- Department of Analytical Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
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Wu X, Sun L, Wang T, Wang Y, Zhao J, Fu Y. Functionalized nano cellulose double-template imprinted aerogel microsphere for the targeted enrichment of taxanes. Int J Biol Macromol 2024; 273:132998. [PMID: 38866290 DOI: 10.1016/j.ijbiomac.2024.132998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/25/2024] [Accepted: 06/05/2024] [Indexed: 06/14/2024]
Abstract
Paclitaxel, a diterpenoid isolated from the bark of Taxus wallichiana var. chinensis (Pilger) Florin, is currently showing significant therapeutic effects against a variety of cancers. Baccatin III (Bac) and 10-Deacetylbaccatin III (10-DAB) are in great demand as important precursors for the synthesis of paclitaxel. This work aims to develop a simple, rapid and highly selective, safe, and non-polluting molecularly imprinted material for 10-DAB and Bac enrichment. In this study, we innovatively prepared molecularly imprinted materials with nanocellulose aerogel microspheres and 2-vinylpyridine (2-VP) as a bifunctional monomer, and 10-DAB and Bac as bis-template molecules. In particular, functionalized nanocellulose dual-template molecularly imprinted aerogel microsphere (FNCAG-DMIM) were successfully synthesized by the bifunctional introduction of functional nanocellulose aerogel microsphere (FNCAG) modified with Polyethyleneimine (PEI) as a carrier and functional monomer, which provided a large number of recognition sites for bimodal molecules. FNCAG-DMIM showed high specificity for 10-DAB and Bac specific assays. Under the optimal experimental conditions, the adsorption capacities of FNCAG-DMIM for 10-DAB and Bac reached 52.27 mg g-1 and 53.81 mg g-1, respectively. In addition, it showed good reliability and practicality in the determination of real samples. The present study extends the research on the synthesis of natural functional monomers by molecularly imprinted materials and opens up new horizons for the targeted isolation of plant compounds by dual-template molecularly imprinted materials.
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Affiliation(s)
- Xiaodan Wu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; The College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, PR China
| | - Linan Sun
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; The College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, PR China
| | - Tao Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; The College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, PR China
| | - Ying Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; The College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, PR China
| | - Jingru Zhao
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, 150040 Harbin, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; The College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 150040 Harbin, PR China
| | - Yujie Fu
- The College of Forestry, Beijing Forestry University, 100083 Beijing, PR China.
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Kamel AH, Abd-Rabboh HSM. Electrochemical sensors based on molecularly imprinted polymers for the detection of chlorophenols as emergent distributing chemicals (EDCs): a review. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:4024-4040. [PMID: 38860820 DOI: 10.1039/d4ay00386a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
Environmental pollutants like chlorophenol chemicals and their derivatives are commonplace. These compounds serve as building blocks in the production of medicines, biocides, dyes, and agricultural chemicals. Chlorophenols enter the environment through several different pathways, including the breakdown of complex chlorinated hydrocarbons, industrial waste, herbicides, and insecticides. Chlorophenols are destroyed thermally and chemically, creating dangerous chemicals that pose a threat to public health. Water in particular is affected, and thorough monitoring is required to find this source of pollution because it can pose a major hazard to both human and environmental health. For the detection of chlorophenols, molecularly imprinted polymers (MIPs) have been incorporated into a variety of electrochemical sensing systems and assay formats. Due to their long-term chemical and physical stability as well as their simple and affordable synthesis process, MIPs have become intriguing synthetic alternatives over the past few decades. In this review, we concentrate on the commercial potential of the MIP technology. Additionally, we want to outline the most recent advancements in their incorporation into electrochemical sensors with a high commercial potential for detecting chlorophenols.
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Affiliation(s)
- Ayman H Kamel
- Department, College of Science, University of Bahrain, Sokheer 32038, Kingdom of Bahrain.
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo 11566, Egypt.
| | - Hisham S M Abd-Rabboh
- Chemistry Department, College of Science, King Khalid University, PO Box 9004, Abha, 62223, Saudi Arabia
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Monir M, Elsayed RE, Azzam RA, Madkour TM. Novel High-Performance Functionalized and Grafted Bio-Based Chitosan Adsorbents for the Efficient and Selective Removal of Toxic Heavy Metals from Contaminated Water. Polymers (Basel) 2024; 16:1718. [PMID: 38932067 PMCID: PMC11207307 DOI: 10.3390/polym16121718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/05/2024] [Accepted: 06/14/2024] [Indexed: 06/28/2024] Open
Abstract
Novel functionalized and/or grafted crosslinked chitosan adsorbents were synthesized and used to remove several toxic heavy metal ions such as nickel, lead, chromium, and cadmium ions from contaminated water. The chitosan biopolymer was functionalized by maleic anhydride (CS_MA) acting also as a crosslinking agent. Glutaraldehyde-crosslinked chitosan (CS_GA) grafted with poly(methyl methacrylate) (CS_MMA) was also synthesized. The synthesized adsorbents were characterized using a variety of analytical techniques such as SEM, TGA, and FTIR, which confirmed their chemical structures and morphology. The adsorption capacity of the adsorbents was analyzed under various conditions of contact time, adsorbent dose, initial concertation, temperature, and pH and evaluated against those of pure chitosan (CS) and the crosslinked chitosan(CS_GA). The ultimate removal conditions were 0.5 g/100 mL adsorbent dose, an initial metal ion concentration of 50 ppm, a temperature of 45 °C, and pH 9. CS_MMA had the highest removal percentages for all metal ions, ranging from 92% to 94%. The adsorption was demonstrated to fit a pseudo-first-order model that followed a Langmuir adsorption isotherm. The results highlight the capacity of the synthesized polymers to efficiently remove major toxic contaminants at low cost from contaminated water, present especially in low-income areas, without harming the environment.
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Affiliation(s)
- Mohammad Monir
- Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, AUC Avenue, New Cairo, Cairo 11835, Egypt; (M.M.); (R.E.E.)
| | - Rasha E. Elsayed
- Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, AUC Avenue, New Cairo, Cairo 11835, Egypt; (M.M.); (R.E.E.)
| | - Rasha A. Azzam
- Department of Chemistry, Faculty of Science, Helwan University, Cairo 11795, Egypt;
| | - Tarek M. Madkour
- Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, AUC Avenue, New Cairo, Cairo 11835, Egypt; (M.M.); (R.E.E.)
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Effting LM, Urbano A, do Lago AC, de Figueiredo EC, Tarley CRT. Synthesis of novel oxytetracycline-molecularly imprinted polymer using a semi-covalent chemical imprinting approach for magnetic dispersive solid phase extraction of tetracyclines in water and milk samples. Food Chem 2024; 437:137854. [PMID: 37944389 DOI: 10.1016/j.foodchem.2023.137854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 10/10/2023] [Accepted: 10/23/2023] [Indexed: 11/12/2023]
Abstract
In the present study, a highly efficient analytical method based on preconcentration of tetracyclines (TCs) in water and milk samples using a magnetic molecularly imprinted polymer (Fe3O4/SiO2/MIP) synthesized by means of a novel semi-covalent synthesis for TCs and determination by HPLC-DAD was proposed. Fe3O4/SiO2/MIP showed specific superficial area of 216.0 m2/g, superior to Fe3O4/SiO2/NIP (non-imprinted material) (103.6 m2/g). Using the Fe3O4/SiO2/MIP, the magnetic dispersive solid phase extraction (MDSPE) for four TCs (chlortetracycline, doxycycline, oxytetracycline, and tetracycline) was based on the preconcentration of 40.0 mL of sample (pH 4.0) vortex-assisted with 10 mg of Fe3O4/SiO2/MIP during 60 s. The method presented a limit of detection (LOD) in the range 0.26-0.60 µg/L, and preconcentration factor in the range 52.3-87.4-fold for the TCs. The method was applied to determine TCs in samples of lake water and cow milk with recovery results ranging from 96.0 to 102.0 %.
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Affiliation(s)
- Letícia Maria Effting
- Laboratório de Desenvolvimento de Métodos Analíticos (LADEMA), Departamento de Química, Universidade Estadual de Londrina (UEL), 86057-970 Londrina, PR, Brazil
| | - Alexandre Urbano
- Departamento de Física, Universidade Estadual de Londrina (UEL), 86057-970 Londrina, PR, Brazil
| | - Ayla Campos do Lago
- Laboratório de Análises de Toxicantes e Fármacos, Faculdade de Ciências Farmacêuticas, Universidade Federal de Alfenas, 37130-000 Alfenas, MG, Brazil
| | - Eduardo Costa de Figueiredo
- Laboratório de Análises de Toxicantes e Fármacos, Faculdade de Ciências Farmacêuticas, Universidade Federal de Alfenas, 37130-000 Alfenas, MG, Brazil
| | - César Ricardo Teixeira Tarley
- Laboratório de Desenvolvimento de Métodos Analíticos (LADEMA), Departamento de Química, Universidade Estadual de Londrina (UEL), 86057-970 Londrina, PR, Brazil; Instituto Nacional de Ciência e Tecnologia de Bioanalítica - (INCTbio), Universidade Estadual de Campinas (UNICAMP), 13083-970 Campinas, SP, Brazil.
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Nabeel MI, Hussain D, Ahmad N, Najam-Ul-Haq M, Musharraf SG. Recent advancements in the fabrication and photocatalytic applications of graphitic carbon nitride-tungsten oxide nanocomposites. NANOSCALE ADVANCES 2023; 5:5214-5255. [PMID: 37767045 PMCID: PMC10521255 DOI: 10.1039/d3na00159h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 08/18/2023] [Indexed: 09/29/2023]
Abstract
The present review focuses on the widely used graphitic carbon nitride (g-C3N4)-tungsten oxide (WO3) nanocomposite in photocatalytic applications. These catalysts are widely employed due to their easy preparation, high physicochemical stability, nontoxicity, electron-rich properties, electronic band structure, chemical stability, low cost, earth-abundance, high surface area, and strong absorption capacity in the visible range. These sustainable properties make them predominantly attractive and unique from other photocatalysts. In addition, graphitic carbon nitride (g-C3N4) is synthesized from nitrogen-rich precursors; therefore, it is stable in strong acid solutions and has good thermal stability up to 600 °C. This review covers the historical background, crystalline phases, density-functional theory (DFT) study, synthesis method, 0-D, 1-D, 2-D, and 3-D materials, oxides/transition/nontransition metal-doped, characterization, and photocatalytic applications of WO3/g-C3N4. Enhancing the catalytic performance strategies such as composite formation, element-doping, heterojunction construction, and nanostructure design are also summarized. Finally, the future perspectives and challenges for WO3/g-C3N4 composite materials are discussed to motivate young researchers and scientists interested in developing environment-friendly and efficient catalysts.
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Affiliation(s)
- Muhammad Ikram Nabeel
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi Karachi-75270 Pakistan
| | - Dilshad Hussain
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi Karachi-75270 Pakistan
| | - Naseer Ahmad
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi Karachi-75270 Pakistan
| | | | - Syed Ghulam Musharraf
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi Karachi-75270 Pakistan
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Luna Quinto M, Khan S, Vega-Chacón J, Mortari B, Wong A, Taboada Sotomayor MDP, Picasso G. Development and Characterization of a Molecularly Imprinted Polymer for the Selective Removal of Brilliant Green Textile Dye from River and Textile Industry Effluents. Polymers (Basel) 2023; 15:3709. [PMID: 37765563 PMCID: PMC10535355 DOI: 10.3390/polym15183709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/28/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
In this paper, we present an alternative technique for the removal of Brilliant Green dye (BG) in aqueous solutions based on the application of molecularly imprinted polymer (MIP) as a selective adsorbent for BG. The MIP was prepared by bulk radical polymerization using BG as the template; methacrylic acid (MAA) as the functional monomer, selected via computer simulations; ethylene glycol dimethacrylate (EGDMA) as cross-linker; and 2,2'-azobis(2-methylpropionitrile) (AIBN) as the radical initiator. Scanning electron microscopy (SEM) analyses of the MIP and non-molecularly imprinted polymer (NIP)-used as the control material-showed that the two polymers exhibited similar morphology in terms of shape and size; however, N2 sorption studies showed that the MIP displayed a much higher BET surface (three times bigger) compared to the NIP, which is clearly indicative of the adequate formation of porosity in the former. The data obtained from FTIR analysis indicated the successful formation of imprinted polymer based on the experimental procedure applied. Kinetic adsorption studies revealed that the data fitted quite well with a pseudo-second order kinetic model. The BG adsorption isotherm was effectively described by the Langmuir isotherm model. The proposed MIP exhibited high selectivity toward BG in the presence of other interfering dyes due to the presence of specific recognition sites (IF = 2.53) on its high specific surface area (112 m2/g). The imprinted polymer also displayed a great potential when applied for the selective removal of BG in real river water samples, with recovery ranging from 99 to 101%.
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Affiliation(s)
- Miguel Luna Quinto
- Technology of Materials for Environmental Remediation Group (TecMARA), Faculty of Sciences, National University of Engineering, Lima 15333, Peru; (M.L.Q.); (S.K.); (J.V.-C.)
| | - Sabir Khan
- Technology of Materials for Environmental Remediation Group (TecMARA), Faculty of Sciences, National University of Engineering, Lima 15333, Peru; (M.L.Q.); (S.K.); (J.V.-C.)
- Institute of Chemistry, State University of São Paulo (UNESP), Araraquara 14800-900, SP, Brazil; (B.M.); (A.W.); (M.D.P.T.S.)
- National Institute of Alternative Technologies for Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara 14800-900, SP, Brazil
- Department of Natural Sciences, Mathematics, and Statistics, Federal Rural University of the Semi-Arid, Mossoro 59625-900, RN, Brazil
| | - Jaime Vega-Chacón
- Technology of Materials for Environmental Remediation Group (TecMARA), Faculty of Sciences, National University of Engineering, Lima 15333, Peru; (M.L.Q.); (S.K.); (J.V.-C.)
| | - Bianca Mortari
- Institute of Chemistry, State University of São Paulo (UNESP), Araraquara 14800-900, SP, Brazil; (B.M.); (A.W.); (M.D.P.T.S.)
| | - Ademar Wong
- Institute of Chemistry, State University of São Paulo (UNESP), Araraquara 14800-900, SP, Brazil; (B.M.); (A.W.); (M.D.P.T.S.)
- National Institute of Alternative Technologies for Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara 14800-900, SP, Brazil
| | - Maria Del Pilar Taboada Sotomayor
- Institute of Chemistry, State University of São Paulo (UNESP), Araraquara 14800-900, SP, Brazil; (B.M.); (A.W.); (M.D.P.T.S.)
- National Institute of Alternative Technologies for Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara 14800-900, SP, Brazil
| | - Gino Picasso
- Technology of Materials for Environmental Remediation Group (TecMARA), Faculty of Sciences, National University of Engineering, Lima 15333, Peru; (M.L.Q.); (S.K.); (J.V.-C.)
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Ramajayam K, Ganesan S, Ramesh P, Beena M, Kokulnathan T, Palaniappan A. Molecularly Imprinted Polymer-Based Biomimetic Systems for Sensing Environmental Contaminants, Biomarkers, and Bioimaging Applications. Biomimetics (Basel) 2023; 8:245. [PMID: 37366840 DOI: 10.3390/biomimetics8020245] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/20/2023] [Accepted: 06/02/2023] [Indexed: 06/28/2023] Open
Abstract
Molecularly imprinted polymers (MIPs), a biomimetic artificial receptor system inspired by the human body's antibody-antigen reactions, have gained significant attraction in the area of sensor development applications, especially in the areas of medical, pharmaceutical, food quality control, and the environment. MIPs are found to enhance the sensitivity and specificity of typical optical and electrochemical sensors severalfold with their precise binding to the analytes of choice. In this review, different polymerization chemistries, strategies used in the synthesis of MIPs, and various factors influencing the imprinting parameters to achieve high-performing MIPs are explained in depth. This review also highlights the recent developments in the field, such as MIP-based nanocomposites through nanoscale imprinting, MIP-based thin layers through surface imprinting, and other latest advancements in the sensor field. Furthermore, the role of MIPs in enhancing the sensitivity and specificity of sensors, especially optical and electrochemical sensors, is elaborated. In the later part of the review, applications of MIP-based optical and electrochemical sensors for the detection of biomarkers, enzymes, bacteria, viruses, and various emerging micropollutants like pharmaceutical drugs, pesticides, and heavy metal ions are discussed in detail. Finally, MIP's role in bioimaging applications is elucidated with a critical assessment of the future research directions for MIP-based biomimetic systems.
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Affiliation(s)
- Kalaipriya Ramajayam
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Selvaganapathy Ganesan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Purnimajayasree Ramesh
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
- School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Maya Beena
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
- School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Thangavelu Kokulnathan
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 106, Taiwan
| | - Arunkumar Palaniappan
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
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Fang L, Tang K, Wei D, Zhang Y, Zhou Y. Photocatalytic degradation of norfloxacin by magnetic molecularly imprinted polymers: influencing factors and mechanisms. ENVIRONMENTAL TECHNOLOGY 2023; 44:1438-1449. [PMID: 34738505 DOI: 10.1080/09593330.2021.2003442] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
Novel magnetic molecularly imprinted polymers (MMIP) were prepared for selective removal of norfloxacin by effectively utilizing photocatalytic degradation and magnetic separation techniques. The imprinted material with titanium layer and multihole surface showed an excellent photocatalytic property. In this paper, the kinetics of photocatalytic degradation of norfloxacin by MMIP was explored, and the influences of environmental factors, including solution pH, humic acid, common ions and water media on photocatalytic performance of MMIP were elucidated. The results showed that MMIP had good adaptability and could degrade norfloxacin within 60 min, but the degradation rate constant decreased in surface water. Based on the identification of intermediate products, the possible degradation pathways of norfloxacin were analysed, speculating that it might be degraded into small molecules in the form of de-piperazine ring, de-carboxyl group and de-fluorine. Moreover, the mineralization ratio of norfloxacin could reach 84.2% after ultraviolet irradiation for 150 min, and the low cobalt release of MMIP enhanced the security of the material. The results of adsorption and degradation cycle tests showed that MMIP obtained by molecular imprinting technology had excellent performance in sustainable use for micro organic pollutants removal.
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Affiliation(s)
- Lei Fang
- Key Laboratory of Drinking Water Safety and Distribution Technology of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, People's Republic of China
| | - Kaijie Tang
- Key Laboratory of Drinking Water Safety and Distribution Technology of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, People's Republic of China
| | - Dong Wei
- Key Laboratory of Drinking Water Safety and Distribution Technology of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, People's Republic of China
| | - Yan Zhang
- Key Laboratory of Drinking Water Safety and Distribution Technology of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, People's Republic of China
| | - Yongchao Zhou
- Key Laboratory of Drinking Water Safety and Distribution Technology of Zhejiang Province, College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, People's Republic of China
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Malik S, Khan A, Khan H, Rahman G, Ali N, Khan S, Sotomayor MDPT. Biomimetic Electrochemical Sensors Based on Core-Shell Imprinted Polymers for Targeted Sunset Yellow Estimation in Environmental Samples. BIOSENSORS 2023; 13:bios13040429. [PMID: 37185506 PMCID: PMC10136464 DOI: 10.3390/bios13040429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/16/2023] [Accepted: 03/23/2023] [Indexed: 05/17/2023]
Abstract
Magnetic molecularly imprinted polymers (MMIPs) contain the predesigned specialized recognition capability that can be chosen to build credible functional materials, that are easy to handle and have a good degree of specificity. Hence, the given piece of work is intended to design a novel electrochemical sensor incorporating magnetite-based molecularly imprinted polymers. The building materials consisted of a cross-linker (EGDMA), reaction-initiator (AIBN), monomer (methylene succinic acid-MSA), and template molecule (Sunset Yellow-SY dye). MMIPs exhibited a diameter of 57 nm with an irregular shape due to the presence of cavities based on SEM analysis. XRD patterns exhibited crystallinity, as well as amorphous peaks that are attributed to polymeric and non-polymeric frameworks of MMIPs. The crystallite size of the MMIPs from XRD analysis was found to be 16.28 nm based on the Debye-Scherrer's equation. Meanwhile, the FTIR bands showed the synthesis of MMIPs using monomer and methylene succinic acid. The sorption data at the optimized operating conditions (pH 2, sorbent dosage 3 mg, time 18 min) showed the highest sorption capacity of 40 mg/g. The obtained data best fitted to the Langmuir sorption isotherm and followed the pseudo-second-order kinetics. The magneto-sensors were applied for ultrasensitive, rapid, and simple sensing of SY dye. The electrochemical experiments were run at the operating condition range of (scan rate 10-50 mV/s, tads 0-120 s, pH 5-9, potential range 1-1.5 V for CV and 1-1.3 V for SWAdASV). The linear range of detection was set to 1.51 × 10-6 M to 1.51 × 10-6 M posing LOD and LOQ values of 8.6242 × 10-5 M and 0.0002874 M, respectively. The regression analysis value for the calibration was found to be 0.950. Additionally, high adsorption efficiency, selectivity, reusability, and strong structural stability of the magneto-sensors showed potential use for SY detection in real samples. These characteristics make MMIPs a viable electrochemical substrate for the detection of chemical contaminants in the environment and in health-related products.
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Affiliation(s)
- Sumeet Malik
- Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa 25120, Pakistan
| | - Adnan Khan
- Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa 25120, Pakistan
| | - Hamayun Khan
- Department of Chemistry, Islamia College Peshawar, Khyber Pakhtunkhwa 25120, Pakistan
| | - Gul Rahman
- Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa 25120, Pakistan
| | - Nauman Ali
- Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa 25120, Pakistan
| | - Sabir Khan
- Chemistry Institute, São Paulo State University (UNESP), Araraquara 14801-900, SP, Brazil
- Department of Natural Sciences, Mathematics and Statistics, Federal Rural University of the Semi-Arid, Mossoró 59625-900, RN, Brazil
- TecMARA, Faculty of Sciences, National University of Engineering, Av. Tupac Amaru 210, Rimac 15333, Lima, Peru
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da Conceição P, Dos Santos Neto AG, Khan S, Tanaka AA, Santana AEG, Del Pilar Taboada-Sotomayor M, Goulart MOF, Santos ACF. Extraction-assisted voltammetric determination of homocysteine using magnetic nanoparticles modified with molecularly imprinted polymer. Mikrochim Acta 2023; 190:159. [PMID: 36973457 DOI: 10.1007/s00604-023-05738-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 03/10/2023] [Indexed: 03/29/2023]
Abstract
A magnetic graphite-epoxy composite (m-GEC) electrochemical sensor is presented based on magnetic imprinted polymer (mag-MIP) to determine homocysteine (Hcy). Mag-MIP was synthesized via precipitation polymerization, using functionalized magnetic nanoparticles (Fe3O4) together with the template molecule (Hcy), the functional monomer 2-hydroxyethyl methacrylate (HEMA), and the structural monomer trimethylolpropane trimethacrylate (TRIM). For mag-NIP (magnetic non-imprinted polymer), the procedure was the same in the absence of Hcy. Morphological and structural properties of the resultant mag-MIP and mag-NIP were examined using TEM, FT-IR, and Vibrating Sample Magnetometer. Under optimized conditions, the m-GEC/mag-MIP sensor showed a linear range of 0.1-2 µmol L-1, with a limit of detection (LOD) of 0.030 µmol L-1. In addition, the proposed sensor responded selectively to Hcy compared to several interferents present in biological samples. The recovery values determined by differential pulse voltammetry (DPV) were close to 100% for natural and synthetic samples, indicating good method accuracy. The developed electrochemical sensor proves to be a suitable device for determining Hcy, with advantages related to magnetic separation and electrochemical analysis.
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Affiliation(s)
- Poliana da Conceição
- Programa de Pós-graduação em Química e Biotecnologia (PPGQB), Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Campus A.C. Simões, Tabuleiro dos Martins, AL, 57072-970, Maceió, Brazil
| | - Antonio Gomes Dos Santos Neto
- Departamento de Química, Universidade Federal do Maranhão, Avenida dos Portugueses, MA, 1966, 65080-805, São Luís, Brazil
| | - Sabir Khan
- Instituto de Química, INCT-DATREM, Universidade Estadual Paulista, Rua Prof. Francisco Degni, 55, Araraquara, SP, Brazil
| | - Auro A Tanaka
- Departamento de Química, Universidade Federal do Maranhão, Avenida dos Portugueses, MA, 1966, 65080-805, São Luís, Brazil
- National Institute of Science and Technology of Bioanalytics (INCT-Bio), Campinas, Brazil
| | - Antônio Euzébio G Santana
- Programa de Pós-graduação em Química e Biotecnologia (PPGQB), Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Campus A.C. Simões, Tabuleiro dos Martins, AL, 57072-970, Maceió, Brazil
| | | | - Marília O F Goulart
- Programa de Pós-graduação em Química e Biotecnologia (PPGQB), Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Campus A.C. Simões, Tabuleiro dos Martins, AL, 57072-970, Maceió, Brazil
- National Institute of Science and Technology of Bioanalytics (INCT-Bio), Campinas, Brazil
| | - Ana Caroline Ferreira Santos
- Programa de Pós-graduação em Química e Biotecnologia (PPGQB), Instituto de Química e Biotecnologia, Universidade Federal de Alagoas, Campus A.C. Simões, Tabuleiro dos Martins, AL, 57072-970, Maceió, Brazil.
- National Institute of Science and Technology of Bioanalytics (INCT-Bio), Campinas, Brazil.
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Arjomandi-Behzad L, Rofouei MK, Badiei A, Ghasemi JB. Simultaneous removal of crystal violet and methyl green in water samples by functionalised SBA-15. INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY 2022; 102:5919-5935. [DOI: 10.1080/03067319.2020.1804895] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/25/2020] [Indexed: 06/19/2023]
Affiliation(s)
| | | | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Jahan B. Ghasemi
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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Development of a Chemically Modified Electrode with Magnetic Molecularly Imprinted Polymer (MagMIP) for 17-β-Estradiol Determination in Water Samples. ELECTROCHEM 2022. [DOI: 10.3390/electrochem3040053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The present work consisted of the development of an electrode based on carbon paste modified with magnetic molecularly imprinted polymer (CPE-MagMIP) for 17-β-estradiol (E2) detection. The incorporation of magnetic material (MagMIP) improved sensor performance, an increase of over 317%. The proposed method resulted in a linear response range from 0.5 to 14.0 μM, and the detection limit (LOD) and quantification limit (LOQ) were equal to 0.13 and 0.44 μM, respectively. Under optimized conditions, the developed sensor obtained satisfactory parameters in E2 determination in water samples, demonstrating selectivity, accuracy, and precision, making it a promising method for monitoring E2 in environmental samples.
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Pardeshi S, Dhodapkar R. Advances in fabrication of molecularly imprinted electrochemical sensors for detection of contaminants and toxicants. ENVIRONMENTAL RESEARCH 2022; 212:113359. [PMID: 35525288 DOI: 10.1016/j.envres.2022.113359] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 04/01/2022] [Accepted: 04/20/2022] [Indexed: 05/27/2023]
Abstract
Worldwide growing concerns about water contamination and pollution have increased significant interest in trace level sensing of variety of contaminants. Thus, there is demand for fabrication of low cost, miniaturized sensing device for in-situ detection of contaminants from the complex environmental matrices capable of providing selective and sensitive detection. Molecularly imprinted polymers (MIPs) has portrayed a substantial potential for selective recognition of various toxicants from a variety of environmental matrices, thus widely used as artificial recognition element in the electrochemical sensors (ECS) owing to their chemical stability, easy and low cost synthesis. The combination of nanomaterials modifiers with MIPs has endowed MIP-ECS with significantly improved sensing performance in the recent years, as the nanomaterial provide properties such as increased surface area, increased conductivity and electrocatalytic activity with enhanced electron transport phenomena, whereas MIPs provide selective recognition effect. In the present review, we have summarized the advances of MIP-ECS electrochemical sensors reported in last six years (2017-2022) for sensing of variety of contaminates including drugs, metal ions, hormones and emerging contaminates. Scope of computational modelling in design of sensitive and selective MIP-ECS is reviewed. We have focused particularly on the synthetic protocols for MIPs preparation including bulk, precipitation, electropolymerization, sol-gel and magnetic MIPs. Moreover, use of various nanomaterial as modifiers and sensitizers and their effects on the sensing performance of resulting MIP-ECS is described. Finally, the potential challenges and future prospects in the research area of MIP-ECS have been discussed.
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Affiliation(s)
- Sushma Pardeshi
- Environmental Biotechnology and Genomics Division, CSIR- National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India
| | - Rita Dhodapkar
- Environmental Biotechnology and Genomics Division, CSIR- National Environmental Engineering Research Institute (NEERI), Nagpur, 440020, India.
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17
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Experimental and theoretical studies of a magnetic mesoporous molecularly imprinted polymer for selective adsorption of estrogens from aqueous solutions. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Malik S, Khan A, Rahman G, Ali N, Khan H, Khan S, Sotomayor MDPT. Core-shell magnetic molecularly imprinted polymer for selective recognition and detection of sunset yellow in aqueous environment and real samples. ENVIRONMENTAL RESEARCH 2022; 212:113209. [PMID: 35378121 DOI: 10.1016/j.envres.2022.113209] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/01/2022] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
Magnetic Molecularly imprinted polymers (MMIPs) have been recently recognized as an exceptional tool for monitoring and decontamination of environmental and biological samples of diverse nature. Based on the potential applications as sorbents and biomimetic sensors, herein, a core-shell magnetic-molecularly imprinted polymer (MMIP) was developed as a selective material for separation and sensing of sunset yellow (SY) dye in an aqueous environment and real samples. The MMIP was synthesized via precipitation polymerization using SY as a template, MAA as a functional monomer (chosen based on simulation studies), EGDMA as a cross-linking agent, and AIBN as an initiator. To elaborate the specificity of MMIP, a comparative agent, magnetic non-imprinted polymer (MNIP) was also synthesized. The XRD results showed that the MMIP showed both crystalline and amorphous structure attributed to the presence and polymeric and non-polymeric groups. The FTIR spectra confirmed synthesis of intermediate and final MMIP product. The SEM results showed spherical morphology and porous structure of the MMIP with an average particle size of 0.636 μm in diameter. The MMIP was first employed as a sorbent for the removal of SY from the aqueous environment. The binding experiments performed at optimized operating conditions (pH 2; time 30 min; sorbent dosage 3 mg; sorbate concentration 80 ppm) showed more selectivity when compared with MNIP. The data fitted best to Langmuir's sorption isotherm (Qo 359.8 mg/g) and followed the pseudo-second-order kinetic model. The synthesized MMIP was also used as an electrochemical sensor for detection of SY dye in the aqueous environment, which exhibited a linear range of detection as (1.51 × 10-6 - 1.5 × 10-3 M). The limit of detection (LOD) and limit of quantification (LOQ) were found to be 0.00413 M and 0.0137 M, respectively. While the R2 value was found to be 0.997 at optimized analytical conditions. These results suggested that the synthesized MMIP can be applied for the selective separation and quantification of SY dye in sample of diverse nature.
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Affiliation(s)
- Sumeet Malik
- Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa, 25120, Pakistan
| | - Adnan Khan
- Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa, 25120, Pakistan.
| | - Gul Rahman
- Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa, 25120, Pakistan
| | - Nauman Ali
- Institute of Chemical Sciences, University of Peshawar, Khyber Pakhtunkhwa, 25120, Pakistan
| | - Hamayun Khan
- Department of Chemistry, Islamia College University, Peshawar, KP, 25120, Pakistan
| | - Sabir Khan
- Laboratory of Physical Chemistry Research, Faculty of Sciences, National University of Engineering, Av. Tupac Amaru 210, Rimac, Lima, Peru; Institute of Chemistry, São Paulo State University (UNESP) and National Institute of Alternative Technologies for Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), 14801-970, Araraquara, SP, Brazil
| | - Maria D P T Sotomayor
- Institute of Chemistry, São Paulo State University (UNESP) and National Institute of Alternative Technologies for Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), 14801-970, Araraquara, SP, Brazil.
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Chen Y, Tang Y, Liu Y, Zhao F, Zeng B. Kill two birds with one stone: Selective and fast removal and sensitive determination of oxytetracycline using surface molecularly imprinted polymer based on ionic liquid and ATRP polymerization. JOURNAL OF HAZARDOUS MATERIALS 2022; 434:128907. [PMID: 35452985 DOI: 10.1016/j.jhazmat.2022.128907] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 06/14/2023]
Abstract
Oxytetracycline (OTC) residue in food and environment has potential threats to ecosystem and human health, thus its sensitive monitoring and effective elimination are very important. In this work, a new molecularly imprinted polymer (MIP) composite was prepared through atom transfer radical polymerization by using OTC as template, gold nanoparticles modified carbon nanospheres (Au-CNS) as supporter, ionic liquids (IL) as functional monomer and cross-linking agent. The obtained MIP-IL@Au-CNS composite was characterized by Fourier transform infrared absorption spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy. It displayed high imprinting factor (5.50) and adsorption capacity (56.7 mg g-1), and could achieved the adsorption equilibrium in short time (about 15 min). Results also illustrated that the adsorption process basically conformed to the quasi-second-order kinetic model and Freundlich model, and MIP-IL@Au-CNS could be recycled at least 5 times. Furthermore, a sensitive OTC electrochemical sensor was developed by combining MIP-IL@Au-CNS with IL-modified carbon nanocomposites (IL@N-rGO-MWCNT). The resulting sensor demonstrated a linear response to OTC in the wide range of 0.02-20 μM, and the detection limit was down to 5 nM. It also had the advantages of high selectivity, fast elution/regeneration and simple construction procedure. The sensor had been applied to the detection of real samples, and acceptable recovery (96.4%-106%) and RSD (3.2%-6.2%) were obtained. This work expands the application of IL-based MIP in pollutant monitoring and enriching.
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Affiliation(s)
- Yanran Chen
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, PR China
| | - Yun Tang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, PR China
| | - Yiwei Liu
- 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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Ali F, Shah Z, Khan A, Saadia M, AlOthman ZA, Cheong WJ. Synthesis, column packing and liquid chromatography of molecularly imprinted polymers for the acid black 1, acid black 210, and acid Brown 703 dyes. RSC Adv 2022; 12:19611-19623. [PMID: 35865557 PMCID: PMC9258683 DOI: 10.1039/d2ra02357a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 06/23/2022] [Indexed: 01/29/2023] Open
Abstract
Molecularly imprinted polymers have been synthesized for the acid black 1, acid black 210, and acid brown 703 dyes using methacrylic acid, ethylene glycol, and azobisisobutyronitrile as the monomer, cross-linker, and initiator, respectively, in the ratio of 1 : 10 : 44 (template:monomer:cross-linker). The MIPs were used for the selective removal of their corresponding dyes. The selective nature of the MIPs towards their respective dyes was confirmed by a homemade liquid chromatography system. The resultant polymer materials were packed in a stainless steel column and checked for the separation of mixtures of dyes in liquid chromatography. The dyes complementary in structure to the imprinted cavities in the MIPs had long retention times, showing the highly selective nature of the MIPs. The pH, quantity of the MIPs, time, and concentration of the dyes were optimized for the highly efficient removal of the newly synthesized MIP adsorbents in batch adsorption studies. First-order, second-order, and intra-particle diffusion models were applied to all the three MIP-based adsorbents for their kinetic investigations towards the dyes. All the three MIPs selectively absorbed their target template molecule in the presence of four other template dyes having closely related structures with % RSD < 4% for the three batch experiments. The synthesized MIPs were characterized by FTIR, SEM imaging and liquid chromatography. FTIR results strongly confirmed the presence of hydrogen bonding interactions (600–900) between the template and the individual monomers present in the unwashed MIPs. Liquid chromatography revealed the highly selective nature of the MIPs towards their template molecules. The synthesized polymeric substances possess excellent thermal, chemical, and mechanical stability and can be reused several hundred times. The MIPs were applied in the removal of dyes from spiked water samples (river water, tap water and distilled water) where the % removal of the dyes by their corresponding MIPs was greater than 90%. MIP synthesis for the recently emerging dyes, a new method for their characterization in liquid chromatography by packing packing the MIP particles in a stainless steel column, and their application in environmental remediation.![]()
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Affiliation(s)
- Faiz Ali
- Department of Chemistry, University of Malakand Chakdara Dir(L) 18800 Khyber Pakhtunkhwa Pakistan
| | - Zuber Shah
- Department of Chemistry, University of Malakand Chakdara Dir(L) 18800 Khyber Pakhtunkhwa Pakistan
| | - Alamgir Khan
- Department of Chemistry, University of Malakand Chakdara Dir(L) 18800 Khyber Pakhtunkhwa Pakistan
| | - Maria Saadia
- Department of Chemistry, University of Malakand Chakdara Dir(L) 18800 Khyber Pakhtunkhwa Pakistan
| | - Zeid A AlOthman
- Department of Chemistry, College of Science, King Saud University Riyadh 11451 Saudi Arabia
| | - Won Jo Cheong
- Department of Chemistry, Inha University 100 Inharo, Namku Incheon 402-751 South Korea
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21
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Cui M, Zhao H, Wen X, Li N, Ren J, Zhang C. Facile synthesis of nickel phosphate nanorods as biomimetic enzyme with excellent electrocatalytic activity for highly sensitive detection of superoxide anion released from living cells. J Pharm Biomed Anal 2022; 212:114653. [DOI: 10.1016/j.jpba.2022.114653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 01/27/2022] [Accepted: 02/05/2022] [Indexed: 01/01/2023]
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Gavrilaș S, Ursachi CȘ, Perța-Crișan S, Munteanu FD. Recent Trends in Biosensors for Environmental Quality Monitoring. SENSORS (BASEL, SWITZERLAND) 2022; 22:1513. [PMID: 35214408 PMCID: PMC8879434 DOI: 10.3390/s22041513] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 05/07/2023]
Abstract
The monitoring of environmental pollution requires fast, reliable, cost-effective and small devices. This need explains the recent trends in the development of biosensing devices for pollutant detection. The present review aims to summarize the newest trends regarding the use of biosensors to detect environmental contaminants. Enzyme, whole cell, antibody, aptamer, and DNA-based biosensors and biomimetic sensors are discussed. We summarize their applicability to the detection of various pollutants and mention their constructive characteristics. Several detection principles are used in biosensor design: amperometry, conductometry, luminescence, etc. They differ in terms of rapidity, sensitivity, profitability, and design. Each one is characterized by specific selectivity and detection limits depending on the sensitive element. Mimetic biosensors are slowly gaining attention from researchers and users due to their advantages compared with classical ones. Further studies are necessary for the development of robust biosensing devices that can successfully be used for the detection of pollutants from complex matrices without prior sample preparation.
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Affiliation(s)
| | | | | | - Florentina-Daniela Munteanu
- Faculty of Food Engineering, Tourism and Environmental Protection, “Aurel Vlaicu” University of Arad, Tourism and Environmental Protection, 2-4 E. Drăgoi Str., 310330 Arad, Romania; (S.G.); (C.Ș.U.); (S.P.-C.)
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Configuration of molecularly imprinted polymers for specific uptake of pharmaceutical in aqueous media through radical polymerization method. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02908-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Metwally MG, Benhawy AH, Khalifa RM, El Nashar RM, Trojanowicz M. Application of Molecularly Imprinted Polymers in the Analysis of Waters and Wastewaters. Molecules 2021; 26:6515. [PMID: 34770924 PMCID: PMC8587002 DOI: 10.3390/molecules26216515] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 10/24/2021] [Accepted: 10/25/2021] [Indexed: 11/16/2022] Open
Abstract
The increase of the global population and shortage of renewable water resources urges the development of possible remedies to improve the quality and reusability of waste and contaminated water supplies. Different water pollutants, such as heavy metals, dyes, pesticides, endocrine disrupting compounds (EDCs), and pharmaceuticals, are produced through continuous technical and industrial developments that are emerging with the increasing population. Molecularly imprinted polymers (MIPs) represent a class of synthetic receptors that can be produced from different types of polymerization reactions between a target template and functional monomer(s), having functional groups specifically interacting with the template; such interactions can be tailored according to the purpose of designing the polymer and based on the nature of the target compounds. The removal of the template using suitable knocking out agents renders a recognition cavity that can specifically rebind to the target template which is the main mechanism of the applicability of MIPs in electrochemical sensors and as solid phase extraction sorbents. MIPs have unique properties in terms of stability, selectivity, and resistance to acids and bases besides being of low cost and simple to prepare; thus, they are excellent materials to be used for water analysis. The current review represents the different applications of MIPs in the past five years for the detection of different classes of water and wastewater contaminants and possible approaches for future applications.
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Affiliation(s)
- Mahmoud G. Metwally
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (M.G.M.); (A.H.B.); (R.M.K.)
| | - Abdelaziz H. Benhawy
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (M.G.M.); (A.H.B.); (R.M.K.)
| | - Reda M. Khalifa
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (M.G.M.); (A.H.B.); (R.M.K.)
| | - Rasha M. El Nashar
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt; (M.G.M.); (A.H.B.); (R.M.K.)
| | - Marek Trojanowicz
- Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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Hassan Pour B, Haghnazari N, Keshavarzi F, Ahmadi E, Zarif BR. A sensitive sensor based on molecularly imprinted polypyrrole on reduced graphene oxide modified glassy carbon electrode for nevirapine analysis. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:4767-4777. [PMID: 34569556 DOI: 10.1039/d1ay00500f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A molecularly imprinted polymer (MIP) sensor was offered for nevirapine (NVP) analysis based on the electropolymerization of pyrrole (Py) on electrochemically reduced graphene oxide (ErGO) immobilized on a glassy carbon electrode (GCE). Electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and atomic force microscope (AFM) were applied to characterize the proposed sensor (MIP/ErGO/GCE). The electrochemical operation of this sensor for NVP analysis was tested using differential pulse voltammetry (DPV) and cyclic voltammetry (CV) methods in an alkaline medium. The prepared MIP/ErGO/GCE exhibited better analytical performance than other modified electrodes toward NVP detection. The offered sensor depicted a linearity range between 0.005 µM and 400 µM with a limit of detection (LOD) of 2 nM under optimal conditions. Notably, the offered sensor illustrated excellent selectivity, good reproducibility, acceptable repeatability, and reliable long-term performance. These experiments depicted the constructed sensor as a favorable and good sensing element towards NVP monitoring in pharmaceutical and serum samples.
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Affiliation(s)
- Bayazid Hassan Pour
- Department of Biology, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran.
| | - Nahid Haghnazari
- Department of Biology, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran.
| | - Fatemeh Keshavarzi
- Department of Biology, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran.
| | - Elahe Ahmadi
- Department of Chemistry, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran
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Mandani S, Rezaei B, Ensafi AA, Rezaei P. Ultrasensitive electrochemical molecularly imprinted sensor based on AuE/Ag-MOF@MC for determination of hemoglobin using response surface methodology. Anal Bioanal Chem 2021; 413:4895-4906. [PMID: 34236471 DOI: 10.1007/s00216-021-03453-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/30/2021] [Accepted: 06/02/2021] [Indexed: 10/20/2022]
Abstract
Considering the importance of determining the levels of hemoglobin (Hb) as a vital protein in red blood cells, in this work a highly sensitive electrochemical sensor was developed based on a gold electrode (AuE) modified with Ag metal-organic framework mesoporous carbon (Ag-MOF@MC) and molecularly imprinted polymers (MIPs). To that end, the MIP layer was formed on the Ag-MOF@MC by implanting Hb as the pattern molecule during the polymerization. The modified electrode was designed using electrochemical approaches including differential pulse voltammetry (DPV), electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV). Using a response level experimental design method, the most important parameters affecting the reaction of the sensing system including pH, incubation time, and scanning rate were optimized. Following the same route, the Hb concentration, pH, temperature, and elution times were optimized to prepare the imprinted polymer layer on the Ag-MOF@MC surface. By exploiting DPV techniques based on the optimal parameters, the electrochemical response of the AuE/Ag-MOF@MC-MIPs for Hb determination was recorded in a wide linear dynamic range (LDR) of 0.2 pM to 1000 nM, with a limit of detection (LOD) of 0.09 pM. Moreover, the Ag-MOF@MC-MIP sensing system showed good stability, high selectivity, and acceptable reproducibility for Hb determination. The sensing system was successfully applied for Hb determination in real blood samples, and the results were compared with those of the standard methods for Hb determination. Acceptable recovery (99.0%) and RDS% (4.6%) confirmed the applicability and reliability of the designed Hb sensing system.
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Affiliation(s)
- Sudabe Mandani
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Behzad Rezaei
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Ali Asghar Ensafi
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Parisa Rezaei
- Department of Medical Laboratory Science, School of Medicine, Isfahan University of Medical Sciences, Isfahan, 81745-33871, Iran
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Köse K, Kehribar DY, Uzun L. Molecularly imprinted polymers in toxicology: a literature survey for the last 5 years. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:35437-35471. [PMID: 34024002 DOI: 10.1007/s11356-021-14510-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 05/17/2021] [Indexed: 05/23/2023]
Abstract
The science of toxicology dates back almost to the beginning of human history. Toxic chemicals, which are encountered in different forms, are always among the chemicals that should be investigated in criminal field, environmental application, pharmaceutic, and even industry, where many researches have been carried out studies for years. Almost all of not only drugs but also industrial dyes have toxic side and direct effects. Environmental micropollutants accumulate in the tissues of all living things, especially plants, and show short- or long-term toxic symptoms. Chemicals in forensic science can be known by detecting the effect they cause to the body with the similar mechanism. It is clear that the best tracking tool among analysis methods is molecularly printed polymer-based analytical setups. Different polymeric combinations of molecularly imprinted polymers allow further study on detection or extraction using chromatographic and spectroscopic instruments. In particular, methods used in forensic medicine can detect trace amounts of poison or biological residues on the scene. Molecularly imprinted polymers are still in their infancy and have many variables that need to be developed. In this review, we summarized how molecular imprinted polymers and toxicology intersect and what has been done about molecular imprinted polymers in toxicology by looking at the studies conducted in the last 5 years.
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Affiliation(s)
- Kazım Köse
- Department of Joint Courses, Hitit University, Çorum, Turkey.
| | - Demet Yalçın Kehribar
- Department of Internal Medicine, Faculty of Medicine, Ondokuz Mayis University, Samsun, Turkey
| | - Lokman Uzun
- Department of Chemistry, Faculty of Science, Hacettepe University, Ankara, Turkey.
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Garcia SM, Wong A, Khan S, Sotomayor MDPT. A simple, sensitive and efficient electrochemical platform based on carbon paste electrode modified with Fe 3O 4@MIP and graphene oxide for folic acid determination in different matrices. Talanta 2021; 229:122258. [PMID: 33838769 DOI: 10.1016/j.talanta.2021.122258] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/21/2021] [Accepted: 02/24/2021] [Indexed: 10/21/2022]
Abstract
A new biomimetic sensor selective to folic acid based on a carbon paste modified with graphene oxide and Fe3O4 nanoparticles coated with molecularly imprinted polymer in the core@shell format (Fe3O4@MIPs) was obtained using the polyol method. The sensing phase was synthesized in a simple way and characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and Brunauer-Emmett-Teller (BET) surface area. In the binding experiments the selective material showed a high adsorption capacity (Q) of 30.4 mg g-1 for MMIP, while the Q value for MNIP (magnetic non-imprinted polymer) was 15.3 mg g-1 both of them following the Langmuir model to the adsorption procedure. After their efficiency was proven, these materials were used as modifiers in the electrochemical sensor (Fe3O4@MIP-GO/CPE). Under optimized conditions using the square-wave adsorptive voltammetry, the proposed sensor exhibited excellent response with a concentration linear range between 2.5 and 48 μmol L-1 and limit of detection of 0.65 μmol L-1 (S/σ = 3). The advantages obtained with the proposed method were high robustness, selectivity, and low cost being these characteristics due to the MIP; highly sensibility due to the high superficial area being the contribution of the magnetite in the core of material; and experimentally versatile since was possible carry out numerous reproductible analysis only make the renovation of the paste electrode surface by simple polishing. The sensor was applied successfully in pharmaceutical formulation and river water samples with recoveries percentages near 100%.
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Affiliation(s)
- Sara Manente Garcia
- Chemistry Institute, São Paulo State University (UNESP), 14801-970, Araraquara, SP, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, SP, Brazil
| | - Ademar Wong
- Chemistry Institute, São Paulo State University (UNESP), 14801-970, Araraquara, SP, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, SP, Brazil
| | - Sabir Khan
- Chemistry Institute, São Paulo State University (UNESP), 14801-970, Araraquara, SP, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, SP, Brazil
| | - Maria D P T Sotomayor
- Chemistry Institute, São Paulo State University (UNESP), 14801-970, Araraquara, SP, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, SP, Brazil.
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Wang Z, Zhang Z, Yan R, Fu X, Wang G, Wang Y, Li Z, Zhang X, Hou J. Facile fabrication of snowman-like magnetic molecularly imprinted polymer microspheres for bisphenol A via one-step Pickering emulsion polymerization. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104911] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Marfà J, Pupin RR, Sotomayor M, Pividori MI. Magnetic-molecularly imprinted polymers in electrochemical sensors and biosensors. Anal Bioanal Chem 2021; 413:6141-6157. [PMID: 34164705 DOI: 10.1007/s00216-021-03461-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/02/2021] [Accepted: 06/08/2021] [Indexed: 12/15/2022]
Abstract
Magnetic particles, as well as molecularly imprinted polymers, have revolutionized separation and bioanalytical methodologies in the 1980s due to their wide range of applications. Today, biologically modified magnetic particles are used in many scientific and technological applications and are integrated in more than 50,000 diagnostic instruments for the detection of a huge range of analytes. However, the main drawback of this material is their stability and high cost. In this work, we review recent advances in the synthesis and characterization of hybrid molecularly imprinted polymers with magnetic properties, as a cheaper and robust alternative for the well-known biologically modified magnetic particles. The main advantages of these materials are, besides the magnetic properties, the possibility to be stored at room temperature without any loss in the activity. Among all the applications, this work reviews the direct detection of electroactive analytes based on the preconcentration by using magnetic-MIP integrated on magneto-actuated electrodes, including food safety, environmental monitoring, and clinical and pharmaceutical analysis. The main features of these electrochemical sensors, including their analytical performance, are summarized. This simple and rapid method will open the way to incorporate this material in different magneto-actuated devices with no need for extensive sample pretreatment and sophisticated instruments.
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Affiliation(s)
- J Marfà
- Grup de Sensors i Biosensors, Departament de Química, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - R R Pupin
- Department of Analytical Chemistry, Institute of Chemistry, State University of São Paulo (UNESP), Araraquara, SP, 14801-970, Brazil
| | - Mpt Sotomayor
- Department of Analytical Chemistry, Institute of Chemistry, State University of São Paulo (UNESP), Araraquara, SP, 14801-970, Brazil
| | - M I Pividori
- Grup de Sensors i Biosensors, Departament de Química, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain. .,Institute of Biotechnology and Biomedicine, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.
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Nemiwal M, Zhang TC, Kumar D. Recent progress in g-C 3N 4, TiO 2 and ZnO based photocatalysts for dye degradation: Strategies to improve photocatalytic activity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 767:144896. [PMID: 33636763 DOI: 10.1016/j.scitotenv.2020.144896] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/26/2020] [Accepted: 12/26/2020] [Indexed: 05/27/2023]
Abstract
Water contamination by dyes is a matter of concern for human health and the environment. Various methods (membrane separation, coagulation and adsorption) have been explored to remove/degrade dyes. However, now the exploitation of semiconductor assisted materials using renewable solar energy has emerged as a potential candidate to resolve the issue. Although, single component photocatalysts (ZnO, TiO2, ZrO2) were experimented, due to their low efficiency and stability due to the high recombination rate electron-hole pair and inefficient visible light absorption, composites of semiconductor materials are being used. Semiconductor heterojunction systems are developed by coupling two or more semiconductor components. The synergistic effect of their properties, such as adsorption and improved charge carrier migration, is observed to increase overall stability. This review covers recent progress in advanced nanocomposite materials based on g-C3N4, TiO2 and ZnO used as photocatalysts with details of enhancing the photocatalytic properties by heterojunctions, crystallinity and doping. The conclusion at the end displays a summary, research gaps and future outlook. A holistic analysis of recent progress to demonstrate the efficient heterojunctions for photodegradation with optimal conditions, this review will be helpful for the development of efficient heterostructured systems for photodegradation. This review covers references from the year 2017-2020.
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Affiliation(s)
- Meena Nemiwal
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur 302017, India.
| | - Tian C Zhang
- Department of Civil & Environmental Engineering, University of Nebraska-Lincoln, Peter Kiewit Institute, Omaha, NE 68182-0178, USA
| | - Dinesh Kumar
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India.
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Ruiz-Córdova GA, Villa JEL, Khan S, Picasso G, Del Pilar Taboada Sotomayor M. Surface molecularly imprinted core-shell nanoparticles and reflectance spectroscopy for direct determination of tartrazine in soft drinks. Anal Chim Acta 2021; 1159:338443. [PMID: 33867037 DOI: 10.1016/j.aca.2021.338443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/09/2021] [Accepted: 03/19/2021] [Indexed: 11/16/2022]
Abstract
The present work shows the synergistic application of reflectance spectroscopy and core-shell molecularly imprinted polymer (MIP) for rapid quantification of tartrazine in soft drinks. Studies evaluated the performance of the MIPs synthesized in the presence of silica nanoparticles unfunctionalized and functionalized with [3-(methacryloyloxy)propyl]trimethoxysilane. Although the use of functionalized silica nanoparticles promoted the highest adsorption capability of tartrazine, the material was found to be less selective when it was applied in real samples. Interestingly, the most accurate results were obtained via the application of the MIP synthesized in the presence of unfunctionalized silica nanoparticles (SiO2@MIP). The optimized core-shell MIP was also characterized by Raman spectroscopy and scanning electron microscopy. The use of direct reflectance spectroscopy in the analyte detection strategy after the template extraction from the MIPs resulted in faster and more accurate results than conventional UV-Visible spectroscopy. With regard to the analysis of the soft drink samples, no significant differences were found between the results obtained from the proposed reflectance spectroscopy-based technique and those obtained from the comparative high-performance liquid chromatography technique. Under optimized conditions, this method displayed a linear range of 1.0-12.5 μmol L-1 with LOD and LOQ values of 0.303 and 1.0 μmol L-1, respectively. The selectivity factor (β) ranged between 1.4 up to 264 showed better recognition of tartrazine in front of other dyes. Based on the results obtained, the proposed method is found to be suitable for rapid determination of tartrazine in food samples with complex matrices without the need of applying tedious sample preparation and cost-demanding instruments.
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Affiliation(s)
- Gerson A Ruiz-Córdova
- Laboratory of Physical Chemistry Research, Faculty of Sciences, National University of Engineering, Av. Tupac Amaru 210 Rimac, Lima, Peru; Department of Analytical Chemistry, Institute of Chemistry, São Paulo State University (UNESP), 14801-970, Araraquara, SP, Brazil
| | - Javier E L Villa
- Department of Analytical Chemistry, Institute of Chemistry, São Paulo State University (UNESP), 14801-970, Araraquara, SP, Brazil
| | - Sabir Khan
- Department of Analytical Chemistry, Institute of Chemistry, São Paulo State University (UNESP), 14801-970, Araraquara, SP, Brazil
| | - Gino Picasso
- Laboratory of Physical Chemistry Research, Faculty of Sciences, National University of Engineering, Av. Tupac Amaru 210 Rimac, Lima, Peru
| | - Maria Del Pilar Taboada Sotomayor
- Department of Analytical Chemistry, Institute of Chemistry, São Paulo State University (UNESP), 14801-970, Araraquara, SP, Brazil; National Institute of Alternative Technologies for Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, SP, Brazil.
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López R, Khan S, Wong A, Sotomayor MDPT, Picasso G. Development of a New Electrochemical Sensor Based on Mag-MIP Selective Toward Amoxicillin in Different Samples. Front Chem 2021; 9:615602. [PMID: 33816435 PMCID: PMC8017129 DOI: 10.3389/fchem.2021.615602] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/22/2021] [Indexed: 11/13/2022] Open
Abstract
This work describes an electrochemical sensor for the selective recognition and quantification of amoxicillin and a β-lactam antibiotic in real samples. This sensor consists of a carbon paste electrode (CPE) modified with mag-MIP (magnetic molecularly imprinted polymer), which was prepared by precipitation method via free radical using acrylamide (AAm) as functional monomer, N,N'-methylenebisacrylamide (MBAA) as a crosslinker, and potassium persulfate (KPS) as initiator, to functionalized magnetic nanoparticles. The magnetic non-imprinted polymers (mag-NIP) were prepared using the same experimental procedure without analyte and used for the preparation of a CPE for comparative studies. The morphological, structural, and electrochemical characteristics of the nanostructured material were evaluated using Field emission gun scanning electron microscopy (FEG-SEM), Transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), Vibrating sample magnetometry (VSM), X-ray diffraction (XRD), and voltammetric technique. Electrochemical experiments performed by square wave voltammetry show that the mag-MIP/CPE sensor had a better signal response compared to the non-imprinted polymer-modified electrode (mag-NIP/CPE). The sensor showed a linear range from 2.5 to 57 μmol L-1 of amoxicillin (r 2 = 0.9964), with a limit of detection and a limit of quantification of 0.75 and 2.48 μmol L-1, respectively. No significant interference in the electrochemical signal of amoxicillin was observed during the testing experiments in real samples (skimmed milk and river water). The proposed mag-MIP/CPE sensor could be used as a good alternative method to confront other techniques to determine amoxicillin in different samples.
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Affiliation(s)
- Rosario López
- Laboratory of Physical Chemistry Research, Faculty of Sciences, National University of Engineering, Lima, Peru
| | - Sabir Khan
- Laboratory of Physical Chemistry Research, Faculty of Sciences, National University of Engineering, Lima, Peru.,Analytical Department, Chemistry Institute, State University of São Paulo (UNESP), Araraquara, Brazil
| | - Ademar Wong
- Analytical Department, Chemistry Institute, State University of São Paulo (UNESP), Araraquara, Brazil.,National Institute for Alternative Technologies of Detection, Toxicological Evaluation & Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, Brazil
| | - María Del Pilar Taboada Sotomayor
- Analytical Department, Chemistry Institute, State University of São Paulo (UNESP), Araraquara, Brazil.,National Institute for Alternative Technologies of Detection, Toxicological Evaluation & Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, Brazil
| | - Gino Picasso
- Laboratory of Physical Chemistry Research, Faculty of Sciences, National University of Engineering, Lima, Peru
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Mortari B, Khan S, Wong A, Sotomayor MDPT. A spot test for direct quantification of acid green 16 adsorbed on a molecularly imprinted polymer through diffuse reflectance measurements. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:453-461. [PMID: 33437979 DOI: 10.1039/d0ay02069a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This work describes a novel technique for the direct quantification of Acid Green 16 (AG16) adsorbed on a molecularly imprinted polymer (MIP) through the application of diffuse reflectance spectrophotometry (DRS) directly in a solid material. The MIP was synthesized by a bulk method using 1-vinylimidazole as the functional monomer. To conduct DRS analysis, adsorption assays were performed through the application of the MIP in a solution containing different concentrations of AG16 for 120 minutes; subsequently, the MIP was left to dry and a certain quantity of the polymer was analyzed. Under optimized conditions, a linear concentration range of 1.0 μmol L-1 to 10.0 μmol L-1 and limits of detection and quantification of 0.3 μmol L-1 and 1.0 μmol L-1, respectively, were obtained. The repeatability and reproducibility of the method were evaluated and RSD values lower than 4% were obtained. Selectivity studies allowed finding imprinting factor values of 1.9, 2.6, 1.1, and 1.1 for AG16, Direct yellow 50, Acid Blue 1, and Brilliant Green, respectively. The proposed method was applied toward the analysis of river water and textile industry effluents. The advantage and novelty of the technique lie in the fact that the amount of the analyte adsorbed on the selective polymer is directly measured on the solid material for AG16 and not indirectly via the remaining solution as it has always been carried out in previous studies reported in the literature. The findings show that the proposed technique is relatively simple, novel and highly versatile for the quantification of analytes adsorbed on MIPs, as well as for the analysis of the material of interest and quantification of diverse analytes in different matrices.
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Affiliation(s)
- Bianca Mortari
- Institute of Chemistry, São Paulo State University - UNESP, Araraquara, SP, Brazil.
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Grothe RA, Lobato A, Mounssef B, Tasić N, Braga AAC, Maldaner AO, Aldous L, Paixão TRLC, Gonçalves LM. Electroanalytical profiling of cocaine samples by means of an electropolymerized molecularly imprinted polymer using benzocaine as the template molecule. Analyst 2021; 146:1747-1759. [DOI: 10.1039/d0an02274h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Cocaine samples were ‘finger-printed’ using e-MIPs, constructed on the surface of portable SPCEs. The SWV data with suitable chemometric analysis provides valuable information about the drugs’ provenience which is crucial to tackle drug traffic.
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Affiliation(s)
- Renata A. Grothe
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo (USP)
- São Paulo – SP
- Brazil
| | - Alnilan Lobato
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo (USP)
- São Paulo – SP
- Brazil
| | - Bassim Mounssef
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo (USP)
- São Paulo – SP
- Brazil
| | - Nikola Tasić
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo (USP)
- São Paulo – SP
- Brazil
| | - Ataualpa A. C. Braga
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo (USP)
- São Paulo – SP
- Brazil
| | - Adriano O. Maldaner
- Instituto Nacional de Criminalística
- Polícia Federal Brasileira (PFB)
- Asa Sul, Brasília – DF
- Brazil
| | - Leigh Aldous
- Department of Chemistry
- King's College of London
- London
- UK
| | - Thiago R. L. C. Paixão
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo (USP)
- São Paulo – SP
- Brazil
| | - Luís Moreira Gonçalves
- Departamento de Química Fundamental
- Instituto de Química
- Universidade de São Paulo (USP)
- São Paulo – SP
- Brazil
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Zeb S, Ali N, Ali Z, Bilal M, Adalat B, Hussain S, Gul S, Ali F, Ahmad R, khan S, Iqbal HM. Silica-based nanomaterials as designer adsorbents to mitigate emerging organic contaminants from water matrices. JOURNAL OF WATER PROCESS ENGINEERING 2020. [DOI: 10.1016/j.jwpe.2020.101675] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Molecularly imprinted polymer-based electrochemical sensors for environmental analysis. Biosens Bioelectron 2020; 172:112719. [PMID: 33166805 DOI: 10.1016/j.bios.2020.112719] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/07/2020] [Accepted: 10/10/2020] [Indexed: 12/11/2022]
Abstract
The ever-increasing presence of contaminants in environmental waters is an alarming issue, not only because of their harmful effects in the environment but also because of their risk to human health. Pharmaceuticals and pesticides, among other compounds of daily use, such as personal care products or plasticisers, are being released into water bodies. This release mainly occurs through wastewater since the treatments applied in many wastewater treatment plants are not able to completely remove these substances. Therefore, the analysis of these contaminants is essential but this is difficult due to the great variety of contaminating substances. Facing this analytical challenge, electrochemical sensing based on molecularly imprinted polymers (MIPs) has become an interesting field for environmental monitoring. Benefiting from their superior chemical and physical stability, low-cost production, high selectivity and rapid response, MIPs combined with miniaturized electrochemical transducers offer the possibility to detect target analytes in-situ. In most reports, the construction of these sensors include nanomaterials to improve their analytical characteristics, especially their sensitivity. Moreover, these sensors have been successfully applied in real water samples without the need of laborious pre-treatment steps. This review provides a general overview of electrochemical MIP-based sensors that have been reported for the detection of pharmaceuticals, pesticides, heavy metals and other contaminants in water samples in the past decade. Special attention is given to the construction of the sensors, including different functional monomers, sensing platforms and materials employed to achieve the best sensitivity. Additionally, several parameters, such as the limit of detection, the linear concentration range and the type of water samples that were analysed are compiled.
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Nunes da Silva D, Leijoto de Oliveira H, Borges KB, Pereira AC. Sensitive Determination of 17β‐Estradiol using a Magneto Sensor Based on Magnetic Molecularly Imprinted Polymer. ELECTROANAL 2020. [DOI: 10.1002/elan.202060223] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Daniela Nunes da Silva
- Departamento de Ciências Naturais Universidade Federal de São João del-Rei (UFSJ) Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas 36301-160 São João del-Rei MG Brazil
| | - Hanna Leijoto de Oliveira
- Departamento de Ciências Naturais Universidade Federal de São João del-Rei (UFSJ) Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas 36301-160 São João del-Rei MG Brazil
| | - Keyller Bastos Borges
- Departamento de Ciências Naturais Universidade Federal de São João del-Rei (UFSJ) Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas 36301-160 São João del-Rei MG Brazil
| | - Arnaldo César Pereira
- Departamento de Ciências Naturais Universidade Federal de São João del-Rei (UFSJ) Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas 36301-160 São João del-Rei MG Brazil
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Ultrasonic mediated synthesis of arsenic imprinted polymer and their analytical practicality as a selective sorbent for removal of toxic As3+ ion from real samples. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02196-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Li J, Ma Y, Zeng Q, Wang M, Wang L. An Electropolymerized Molecularly Imprinted Electrochemical Sensor for the Selective Determination of Bisphenol A Diglycidyl Ether. ChemistrySelect 2020. [DOI: 10.1002/slct.202000230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jiayong Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 People's Republic of China
| | - Ya Ma
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 People's Republic of China
| | - Qiang Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 People's Republic of China
| | - Min Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 People's Republic of China
| | - Lishi Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 People's Republic of China
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Luna Quinto M, Khan S, Picasso G, Taboada Sotomayor MDP. Synthesis, characterization, and evaluation of a selective molecularly imprinted polymer for quantification of the textile dye acid violet 19 in real water samples. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121374. [PMID: 31672437 DOI: 10.1016/j.jhazmat.2019.121374] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 09/18/2019] [Accepted: 09/30/2019] [Indexed: 06/10/2023]
Abstract
A molecularly imprinted polymer (MIP) was developed for the determination of acid violet 19 (AV19) dye. The MIP was synthesized by polymerization using 1-vinyl imidazole (functional monomer) and 2,2'-azobis(2-methylpropionitrile) as the radical initiator. The functional monomer was previously selected by computational simulations. The MIP adsorption data could be fitted using the Langmuir model obtained a Qm value of 6.93 mg g-1 and 2.84 mg g-1 for the corresponding non-imprinted polymer (NIP) and the process followed pseudo-second-order kinetics (k2 0.2416 mg g-1 min-1 MIP). The BET specific surface areas were 229.6 m2 g-1 and 28.6 m² g-1, to MIP and NIP, respectively. Analyses showed that the material provided excellent selectivity towards acid violet 19 (AV19) when compared to other analytes including Acid Violet 17 (AV17), Tartrazine (TZ), Acid Red 14 (AR14), Patent blue-VF (PBV), Sunset yellow FCF (SY) and Acid Red 1 (AR1). The calculated Kd value for the MIP was 0.116 L g-1 and the imprinting factor was 2.89. This alternative and effective material for the enrichment, extraction, and determination of acid violet 19 presents in complex real samples was applied using two different rivers water and industrial effluent, with excellent recoveries values ranging between 85% up to 99%.
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Affiliation(s)
- Miguel Luna Quinto
- Laboratory of Physical Chemistry Research, Faculty of Sciences, National University of Engineering, Av. Tupac Amaru 210, Rimac, Lima, Peru
| | - Sabir Khan
- Department of Analytical Chemistry, Institute of Chemistry, State University of São Paulo (UNESP), 14801-970 Araraquara, SP, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, SP, Brazil
| | - Gino Picasso
- Laboratory of Physical Chemistry Research, Faculty of Sciences, National University of Engineering, Av. Tupac Amaru 210, Rimac, Lima, Peru.
| | - Maria Del Pilar Taboada Sotomayor
- Department of Analytical Chemistry, Institute of Chemistry, State University of São Paulo (UNESP), 14801-970 Araraquara, SP, Brazil; National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM), Araraquara, SP, Brazil.
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Mosleh S, Dashtian K, Ghaedi M, Amiri M. A Bi2WO6/Ag2S/ZnS Z-scheme heterojunction photocatalyst with enhanced visible-light photoactivity towards the degradation of multiple dye pollutants. RSC Adv 2019; 9:30100-30111. [PMID: 35530235 PMCID: PMC9072109 DOI: 10.1039/c9ra05372g] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 09/09/2019] [Indexed: 12/28/2022] Open
Abstract
A novel visible-light-driven Z-scheme heterojunction, Bi2WO6/Ag2S/ZnS, was synthesized and its photocatalytic activity was evaluated for the treatment of a binary mixture of dyes, and its physicochemical properties were characterized using FT-IR, XRD, DRS and FE-SEM techniques. The Bi2WO6/Ag2S/ZnS Z-scheme heterojunctions not only facilitate the charge separation and transfer, but also maintain the redox ability of their components. The superior photocatalytic activity demonstrated by the Z-scheme Bi2WO6/Ag2S/ZnS attributes its unique properties such as the rapid generation of electron–hole pairs, slow recombination rate, and narrow bandgap. The performance of the Bi2WO6/Ag2S/ZnS was evaluated for the simultaneous degradation of methyl green (MG) and auramine-O (AO) dyes, while the influences of the initial MG concentration (4–12 mg L−1), initial AO concentration (2–6 mg L−1), pH (3–9), irradiation time (60–120 min) and photocatalyst dosage (0.008–0.016 g L−1) were investigated through the response surface methodology. The desirability function approach was applied to optimize the process and results revealed that maximum photocatalytic degradation efficiency was obtained at optimum conditions including 6.08 mg L−1 of initial MG concentration, 4.04 mg L−1 of initial AO concentration, 7.25 of pH, 90.58 min of irradiation time and 0.013 g L−1 of photocatalyst dosage. In addition, a possible photocatalytic mechanism of the Bi2WO6/Ag2S/ZnS heterojunction was proposed based on the photoinduced charge carriers. A Z-scheme Bi2WO6/Ag2S/ZnS heterojunction was successfully synthesized as a novel visible-light-driven photocatalyst for the degradation of multiple dye pollutants.![]()
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Affiliation(s)
- Soleiman Mosleh
- Department of Gas and Petroleum
- Yasouj University
- Gachsaran 75918-74831
- Iran
| | | | | | - Maryam Amiri
- Chemistry Department
- Yasouj University
- Yasouj 75918-74831
- Iran
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