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Meng M, Ren J, Zhang C, Du W, Wang J. Polyvinylidene Fluoride-Based Nanowire-Imprinted Membranes with High Flux for Efficient and Selective Separation of Artemisinin/Artemether. Molecules 2024; 29:3868. [PMID: 39202947 PMCID: PMC11357418 DOI: 10.3390/molecules29163868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/28/2024] [Accepted: 08/13/2024] [Indexed: 09/03/2024] Open
Abstract
A traditional phase transformation method is commonly used to prepare molecular imprinting membranes for selective separation. However, traditional molecularly imprinted polymers are mostly micron-sized particles, and the imprinting sites in their membrane are easily embedded, leading to a reduced adsorption capacity and decreased selectivity. In this study, an ultra-long nanowire with a diameter of about 15 nm was synthesized for the separation of artemisinin (ART), and its adsorption capacity was as high as 198.29 mg g-1 after imprinting polymerization. Molecular imprinting membranes were prepared, using polyvinylidene fluoride (PVDF), polyethersulfone (PES), and polysulfone (PSF) as the membrane matrix, for comparison. The average membrane pore size of PVDF-MIM was about 480 nm, and PVDF-MIM had the highest adsorption capacity (69 mg g-1) for ART. The optimal flow rate for PVDF-MIM's dynamic adsorption of ART was 7 mL min-1. Under this optimal flow rate, selectivity experiments were carried out to obtain the separation factor of PVDF-MIM (α = 8.37), which was much higher than the corresponding values of PES-MIM and PSF-MIM. In addition, the hydrophobicity and low flux of PES-MIM and PSF-MIM lead to higher non-specific adsorption. The hydrophobicity of PVDF-MIM is lower than that of PES-MIM and PSF-MIM, which greatly reduces the non-specific adsorption of the membrane, thus increasing the selectivity of the membranes. Therefore, the effective density of the imprinting sites in the pores and the membrane structure are the main factors determining the efficient separation of molecularly imprinted membranes.
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Affiliation(s)
- Minjia Meng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; (J.R.); (C.Z.); (W.D.)
| | | | | | | | - Jixiang Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; (J.R.); (C.Z.); (W.D.)
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Dykstra G, Chapa I, Liu Y. Reagent-Free Lactate Detection Using Prussian Blue and Electropolymerized-Molecularly Imprinted Polymers-Based Electrochemical Biosensors. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38691422 DOI: 10.1021/acsami.3c19448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Sweat lactate, a promising biomarker for assessing physical performance and health conditions, calls for noninvasive, convenient, and affordable detection methods. This study leverages molecularly imprinted polymers (MIPs) as a synthetic biorecognition element for lactate detection due to their affordability and high stability. Traditional MIPs-based electrochemical sensors often require external redox probes such as ferricyanide/ferrocyanide in the solution to signal the binding between analytes and MIPs, which restricts their applicability. To address this, our study introduces an innovative approach utilizing a layer of Prussian blue (PB) nanoparticles as the internal redox probe on screen-printed carbon electrodes (SPCE), followed by a layer of electropolymerized MIP (eMIP) for molecular recognition, enabling reagent-free lactate detection. The real-time growth of eMIP and the processes of template elution and lactate rebinding were examined and validated using electrochemical surface plasmon resonance (EC-SPR) spectroscopy. The sensor's performance was thoroughly investigated using Differential Pulsed Voltammetry (DPV) and Electrochemical Impedance Spectroscopy (EIS) with samples spiked in 0.1 M KCl solution and artificial sweat. The developed sensors demonstrated a fast and selective response to lactate, detecting concentrations from 1 to 35 mM with a Limit of Detection (LOD) of 0.20 mM, defined by a signal-to-noise ratio of 3 in the DPV measurements. They also exhibited excellent reproducibility, reusability, and a shelf life of up to 10 months under ambient conditions. These eMIP/PB/SPCE-based lactate sensors show considerable potential as point-of-care (POC) devices for sweat lactate detection, and the technology could be adapted for reagent-free detection of a broad spectrum of molecules.
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Affiliation(s)
- Grace Dykstra
- Department of Chemical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Isabel Chapa
- Department of Chemical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Yixin Liu
- Department of Chemical Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
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3
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Athab ZH, Halbus AF, Mohammed SB, Atiyah AJ, Ismael HI, Saddam NS, Baqir SJ, Alesary HF, Algburi S, Al-Ansari N. Comparison activity of pure and chromium-doped nickel oxide nanoparticles for the selective removal of dyes from water. Sci Rep 2024; 14:4032. [PMID: 38369532 PMCID: PMC10874945 DOI: 10.1038/s41598-024-53490-6] [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: 09/19/2023] [Accepted: 02/01/2024] [Indexed: 02/20/2024] Open
Abstract
The current study involves a synthesis of a composite of nickel oxide nanoparticles (NiONPs) with a chromium dopant to yield (Cr/NiONPs). Synthesis of nickel oxide was performed by the co-precipitation method. The synthesis of the composite was conducted by the impregnation method. FTIR, EDX, SEM, and XRD were used to characterize the synthesized materials. The synthesised materials' point zero charges (PZC) were performed using the potentiometric titration method. The obtained results show that the PZC for neat nickel oxide was around 5, and it was around 8 for Cr/NiONPs. The adsorption action of the prepared materials was examined by applying them to remove Reactive Red 2 (RR2) and Crystal Violate (CV) dyes from solutions. The outcomes demonstrated that Cr/NiONPs were stronger in the removal of dyes than NiONPs. Cr/NiONPs achieved 99.9% removal of dyes after 1 h. Adsorption isotherms involving Freundlich and Langmuir adsorption isotherms were also conducted, and the outcomes indicated that the most accurate representation of the adsorption data was offered by Langmuir adsorption isotherms. Additionally, it was discovered that the adsorption characteristics of the NiONPs and Cr/NiONPs correspond well with the pseudo-second-order kinetic model. Each of the NiONPs and Cr/NiONPs was reused five times, and the results display that the effectiveness of the removal of RR2 dye slightly declined with the increase in reuse cycles; it lost only 5% of its original efficiency after the 5 cycles. Generally, Cr/NiONPs showed better reusability than NiONPs under the same conditions.
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Affiliation(s)
- Zahraa H Athab
- Environmental Research and Studies Center, University of Babylon, Hilla, Iraq
| | - Ahmed F Halbus
- Department of Chemistry, College of Science, University of Babylon, Hilla, Iraq.
| | | | - Abbas J Atiyah
- Department of Chemistry, College of Science, University of Babylon, Hilla, Iraq
| | | | | | - Sadiq J Baqir
- Almustaqbal University College, Babylon, Hilla, Iraq
| | - Hasan F Alesary
- Department of Chemistry, College of Science, University of Kerbala, Karbala, Iraq
| | - Sameer Algburi
- College of Engineering Techniques, Al-Kitab University, Kirkuk, 36015, Iraq
| | - Nadhir Al-Ansari
- Department of Civil, Environmental and Natural Resources Engineering, Lulea University of Technology, Luleå, Sweden.
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Dai Y, Xu W, Hong J, Zheng Y, Fan H, Zhang J, Fei J, Zhu W, Hong J. A molecularly imprinted ratiometric fluorescence sensor based on blue/red carbon quantum dots for the visual determination of thiamethoxam. Biosens Bioelectron 2023; 238:115559. [PMID: 37542976 DOI: 10.1016/j.bios.2023.115559] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 07/28/2023] [Accepted: 07/29/2023] [Indexed: 08/07/2023]
Abstract
Neonicotinoids such as thiamethoxam (TMX) were widely used in agricultural production and tended to accumulate in the environment, potentially harming human and ecosystem health. To enable widespread monitoring of TMX residues, it was essential to design a reliable and sensitive detection method. Here, we developed a novel smartphone-enablled molecularly imprinted ratiometric fluorescence sensing system for selective on-site detection of TMX. It was based on blue-emission carbon dots (CDs) wrapped with a molecularly imprinted layer (B-CDs@MIPs), which provided the response signal, while red-emission CDs (R-CDs) served as an internal reference. The fluorescence signal ratio of the sensor increased with the TMX concentration, resulting in an obvious fluorescence color change from red to blue. The sensor exhibited a satisfactory limit of detection (LOD) of 13.5 nM in fluorescence analysis while LOD of 70.1 nM in visual determination. In addition, the sensing system was validated using food and environment samples, exhibiting recoveries from 91.40% to 105.7%, indicating excellent reliability for TMX detection in actual samples. Thus, the sensing system developed in this study offered promising prospects for visual detection of pesticide residues in complex environmental samples.
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Affiliation(s)
- Yin Dai
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Wei Xu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Junqiang Hong
- Department of Radiotherapy, Fujian Medical University Affiliated Xiamen Humanity Hospital, Xiamen, Fujian, 361000, China
| | - Yani Zheng
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Huizhu Fan
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jun Zhang
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jianwen Fei
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Wanying Zhu
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Junli Hong
- School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu, 211166, China.
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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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Hazarika D, Yang JC, Lim SJ, Park SY, Park J. Determination of ovalbumin sensing response of protein-imprinted bilayered hydrogel strips via measurement of mechanically driven bending angles based on swelling-induced deformation. Mikrochim Acta 2023; 190:265. [PMID: 37336828 DOI: 10.1007/s00604-023-05845-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/20/2023] [Indexed: 06/21/2023]
Abstract
Novel detection method has been developed to explore changes in mechanical bending angles on a bilayer of polyethylene terephthalate (PET) and molecularly imprinted polymer (MIP). For an ovalbumin (OVA)-imprinted hydrogel layer, functional monomers were employed to achieve sufficient binding effect in the polymer matrix. The OVA amount added in the MIP precursor solution and the dimensions of OVA-imprinted hydrogel (MIH) strips were controlled to maximize the change in bending angles as an OVA sensing response within a valid detection range. The sensing behaviors were determined by monitoring the difference in the bending angles via protein adsorption based on the swelling-induced deformation of the OVA-extracted hydrogel (E-MIH) strip. The equilibrium adsorption capacity of the E-MIH strip was calculated via the Bradford protein assay. The detection limit, quantification limit, and imprinting factor were calculated. To compare the selectivity coefficients, the adsorption behaviors of three proteins were investigated. Finally, the reusability of the E-MIH strip was explored via repeated adsorption and extraction. Based on the results, the E-MIH strips demonstrated a promising protein sensing platform monitoring mechanical bending angles affected by swelling deformation.
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Affiliation(s)
- Deepshikha Hazarika
- Department of Polymer Science & Engineering, Kyungpook National University, 80 Daehak-ro, Daegu, 41566, Republic of Korea
| | - Jin Chul Yang
- Department of Polymer Science & Engineering, Kyungpook National University, 80 Daehak-ro, Daegu, 41566, Republic of Korea
| | - Seok Jin Lim
- Department of Polymer Science & Engineering, Kyungpook National University, 80 Daehak-ro, Daegu, 41566, Republic of Korea
| | - Soo-Young Park
- Department of Polymer Science & Engineering, Kyungpook National University, 80 Daehak-ro, Daegu, 41566, Republic of Korea.
| | - Jinyoung Park
- Department of Polymer Science & Engineering, Kyungpook National University, 80 Daehak-ro, Daegu, 41566, Republic of Korea.
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Su Y, Kang Y, Huang Q, Zhang J, Liu J, Hu Z, Liu Z, Liu Y. Cr(VI) anion-imprinted polymer synthesized on mesoporous silicon via synergistic action of bifunctional monomers for precise identification and separation of Cr(VI) from aqueous solution by fixed-bed adsorption. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 87:2061-2078. [PMID: 37186615 PMCID: wst_2023_127 DOI: 10.2166/wst.2023.127] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The novel Cr(VI) anion-imprinted polymer (Cr(VI)-IIP) was prepared by a surface imprinting technique with bifunctional monomers pre-assembly system based on mesoporous silicon (SBA-15). The synthesized Cr(VI)-IIP was characterized by Fourier transmission infrared spectra (FT-IR), energy dispersive spectrometer (EDS), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray powder diffractometer, N2 adsorption-desorption and thermogravimetric analysis (TGA), proving to be with a highly ordered mesoporous structure, as well as favorable thermal stability. The saturated adsorption amount was 96.32 mg/g, which was 2.7 times higher than that of non-imprinted polymer (NIP). Kinetic experiments showed that the adsorption equilibrium state was obtained within 70 min. In addition, in the selectivity experiments, Cr(VI)-IIP exhibited strong specific recognition ability for Cr(VI) and could realize the separation of Cr(VI) and Cr(III) from an aqueous solution. The dynamic adsorption experiments exhibited that the dynamic adsorption efficiency of Cr(VI)-IIP was as high as 71.57%. Meanwhile, the dynamic regeneration experiments showed that the adsorption amount of Cr(VI)-IIP did not decrease significantly after repeating for five times. All of the findings suggested that Cr(VI)-IIP could achieve precise identification as well as efficient separation of Cr(VI) from aqueous solution.
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Affiliation(s)
- Ya Su
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China E-mail:
| | - Yumeng Kang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China E-mail:
| | - Qinya Huang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China E-mail:
| | - Jiahao Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China E-mail:
| | - Jinhua Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China E-mail:
| | - Zhaoyong Hu
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Zhanchao Liu
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
| | - Yan Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China E-mail:
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Zhang X, Wang M, Zhang Y, Zhao P, Cai J, Yao Y, Liang J. Preparation of Molecularly Imprinted Cysteine Modified Zinc Sulfide Quantum Dots Based Sensor for Rapid Detection of Dopamine Hydrochloride. Molecules 2023; 28:molecules28093646. [PMID: 37175056 PMCID: PMC10180347 DOI: 10.3390/molecules28093646] [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: 03/17/2023] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
By combining surface molecular imprinting technology with cysteine-modified ZnS quantum dots, an elegant, molecularly imprinted cysteine-modified Mn2+: ZnS QDs (MIP@ZnS QDs) based fluorescence sensor was successfully developed. The constructed fluorescence sensor is based on a molecularly imprinted polymer (MIP) coated on the surface cysteine-modified ZnS quantum dots and used for rapid fluorescence detection of dopamine hydrochloride. The MIP@ZnS quantum dots possess the advantages of rapid response, high sensitivity, and selectivity for the detection of dopamine hydrochloride molecules. Experimental results show that the adsorption equilibrium time of MIP@ZnS QDs for dopamine hydrochloride molecules is 12 min, and it can selectively capture and bind dopamine in the sample with an imprinting factor of 29.5. The fluorescence quenching of MIP@ZnS QDs has a good linear (R2 = 0.9936) with the concentration of dopamine hydrochloride ranged from 0.01 to 1.0 μM, and the limit of detection is 3.6 nM. In addition, The MIP@ZnS QDs demonstrate good recyclability and stability and are successfully employed for detection of dopamine hydrochloride in urine samples with recoveries was 95.2% to 103.8%. The proposed MIP@ZnS QDs based fluorescent sensor provides a promising approach for food safety detection and drug analysis.
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Affiliation(s)
- Xin Zhang
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China
- Research Center of Henan Provincial Agricultural Biomass Resource Engineering and Technology, Nanyang 473061, China
| | - Meng Wang
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Yating Zhang
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Pan Zhao
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Jiamei Cai
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Yunjian Yao
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Jiarong Liang
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China
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Wright KM, Bowyer MC, McCluskey A, Holdsworth CI. Molecular Imprinting of Benzylpiperazine: A Comparison of the Self-Assembly and Semi-Covalent Approaches. Int J Mol Sci 2023; 24:ijms24065117. [PMID: 36982195 PMCID: PMC10048891 DOI: 10.3390/ijms24065117] [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: 01/19/2023] [Revised: 03/02/2023] [Accepted: 03/04/2023] [Indexed: 03/30/2023] Open
Abstract
Molecularly imprinted polymers (MIPs) for benzylpiperazine (BZP, 1), an illicit designer drug, were developed by using both self-assembly and semi-covalent approaches. From an array of potential functional monomers (FMs) and using a combination of pre-synthetic interaction studies (by molecular modelling and NMR analysis) and binding assays, the highest performing self-assembly 1-MIPs were confirmed to result from methacrylic acid (7) as FM, ethylene glycol dimethacrylate (EGDMA) or trimethylolpropane trimethacrylate (TRIM) as crosslinkers and chloroform as the porogen and rebinding solvent at template (T): FM ratios of 1:1 and 1:2, giving imprinting factors (IF) 3 to 7. The semi-covalent 1-MIPs were designed using benzylpiperazine (4-vinylphenyl) carbamate (16) as the template-monomer adduct in combination with either EDGMA or TRIM. Our comparative analysis showed the semi-covalent polymers to have a stronger affinity for 1 (significantly lower Kd values and higher IFs) and faster uptake than the self-assembly systems. Both approaches have comparable cross-reactivity: marginal to low against cocaine (17) and morphine (18) and high against ephedrine (19) and phenylpiperazine (20). They also have comparable selectivity: highly selective towards 1 against 17, moderate against 18 and non-selective against 19. EGDMA-based self-assembly MIPs displayed a greater imprinting effect (higher IFs and NIP-to-MIP Kd ratios) than TRIM-based MIPs, while the TRIM-based semi-covalent MIP outperformed its EGDMA-based equivalent. By virtue of its modest selectivity against the test illicit drugs, 1-MIPs could potentially be used as a dummy MIP for the broad-based capture and enrichment of illicit drug blends for subsequent laboratory analysis.
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Affiliation(s)
- Kathleen M Wright
- Sanitarium Health Food Company, 1 Sanitarium Drive, Berkeley Vale, NSW 2261, Australia
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Michael C Bowyer
- Academic Division, University of Newcastle, Ourimbah, NSW 2258, Australia
| | - Adam McCluskey
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Clovia I Holdsworth
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
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Li M, Wang P, Luo S, Wu Y, Tian X, Pan J. Construction of Anti-Biofouling Imprinted Sorbents Based on Anisotropic Polydopamine Nanotubes for Fast and Selective Capture of 2′-Deoxyadenosine. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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11
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Epitope-imprinted Polydopamine and Reduced Graphene Oxide-Based Sensing Interface for Label-free Detection of Gliadin. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.105090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Magnetic molecularly imprinted polymers based on eco-friendly deep eutectic solvent for recognition and extraction of three glucocorticoids in lotion. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Dai Y, Jiang W, Zheng Y, He P, Zhu R, Fei J, Xu W, Liu C, Hong J. Recyclable molecularly imprinted polymers based on Fe3O4@SiO2 and PAMAM dendrimers for the determination of myosmine in cigarettes. Mikrochim Acta 2022; 189:467. [DOI: 10.1007/s00604-022-05529-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 10/04/2022] [Indexed: 11/25/2022]
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14
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Bel Haj Mohamed N, Ouni S, Bouzid M, Bouzidi M, Bonilla-Petriciolet A, Haouari M. Synthesis and preparation of acid capped CdSe nanocrystals as successful adsorbent and photocatalyst for the removal of dyes from water and its statistical physics analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:72747-72763. [PMID: 35610458 DOI: 10.1007/s11356-022-20990-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
In this study, mercaptosuccinic acid capped CdSe nanocrystals were successfully synthesized and used as photocatalyst for the effective removal of methylene blue (MB) inaqueous solution under visible light and sunlight irradiations including its analysis with statistical physics theory. Dye adsorption properties of these nanocrystals were investigated via experimental kinetics and equilibrium studies. These experimental data were modeled via the application of statistical physics theory to explain the corresponding adsorption mechanism and to characterize the steric and energetic parameters involved in the dye removal. A maximum adsorption capacity of 27.07 mg g-1 (80% of dye removal) was observed in 10 min using an initial concentration of 30 mg L-1. Statistical physics calculations indicated that the adsorption energy was lower than 40 kJ mol-1. It was also established that the dye adsorption was associated to the electrostatic interactions and hydrogen bonding where dye aggregation and multi-molecular adsorption were expected. Overall, the dye removal was a spontaneous, feasible and exothermic. It was concluded that adsorption properties of CdSe-MSA nanocrystals improved the dye photo-catalytic degradation efficiency under visible light thus achieving up to 80% degradation efficiency in 60 min. The synergic effect of adsorption and photo-catalytic degradation performance was mainly due to the surface area (136.43 m2 g-1), small size (3.7 nm), and structural defects (selenium vacancies Se, interstitial of cadmium ICd) of CdSe nanocrystals, which enhanced both the response of these nanomaterials to visible light and their photo-catalytic activity. In summary, these nanocrystals are promising materials to be used in wastewater treatment under sunlight for the removal of organic compounds like dyes.
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Affiliation(s)
- Naim Bel Haj Mohamed
- Faculty of Sciences, Laboratory of Spectroscopic Characterization and Optical Materials (LaSCOM), University of Sfax, B.P. 1171, 3000, Sfax, Tunisia.
| | - Sabri Ouni
- Faculty of Sciences of Monastir, Laboratory of Advanced Materials and Interfaces (LIMA), University of Monastir, Monastir, Tunisia
| | - Mohamed Bouzid
- Faculty of Sciences of Monastir, Laboratory of Quantum and Statistical Physics, LR18ES18, University of Monastir, Monastir, Tunisia
| | - Mohamed Bouzidi
- Physics Department, Faculty of Science, University of Ha'il, Ha'il, Saudi Arabia
- Faculty of Sciences of Monastir, Research Unit on Hetero-Epitaxies and Applications, University of Monastir, Monastir, Tunisia
| | | | - Mohamed Haouari
- Faculty of Sciences of Monastir, Laboratory of Advanced Materials and Interfaces (LIMA), University of Monastir, Monastir, Tunisia
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Goyal A, Sakata T. Development of a Redox-Label-Doped Molecularly Imprinted Polymer on β-Cyclodextrin/Reduced Graphene Oxide for Electrochemical Detection of a Stress Biomarker. ACS OMEGA 2022; 7:33491-33499. [PMID: 36157772 PMCID: PMC9494674 DOI: 10.1021/acsomega.2c04423] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/26/2022] [Indexed: 06/16/2023]
Abstract
Cortisol is a major stress biomarker involved in the regulation of metabolic and immune responses. Readily accessible assays with sufficient quantitative and temporal resolution can assist in prevention, early diagnosis, and management of chronic diseases. Whereas conventional assays are costly in terms of time, labor, and capital, an electrochemical approach offers the possibility of miniaturization and detection at the point-of-care. Here, we investigate the biosensor application of molecularly imprinted polypyrrole (PPy) doped with hexacyanoferrate (HCF) and coupled to reduced graphene oxide functionalized with β-cyclodextrin (β-CD). β-CD provides an inclusion site for lipophilic cortisol and was electrochemically grafted simultaneous with reduction of GO. Next, PPy was electrochemically deposited in presence of cortisol template with HCF dopant ions serving as intrinsic redox probe. Thus, the sensor response was evaluated via changes of redox peak current in cyclic voltammetry and demonstrated a broad logarithmic detection range (5 pg/mL to 5000 ng/mL, R 2 = 0.995), with a sensitivity of 8.809 μA log-1 (ng/mL) cm-2 and LOD of 19.3 pM. The sensor was shown to be specific toward cortisol in reference to salivary cortisol concentration in saliva over structural analogues. The sensor was exhibited to determine cortisol in artificial saliva at normal and elevated levels. The good performance and facile electrochemical fabrication of this antibody- and external label-free interface are promising for the development of affordable point-of-care biosensors.
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16
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Alabbad EA, Bashir S, Liu JL. Efficient removal of direct yellow dye using chitosan crosslinked isovanillin derivative biopolymer utilizing triboelectric energy produced from homogeneous catalysis. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.06.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Zhang X, Jiao P, Ma Y, Wei Y. Molecular Imprinted ZnS Quantum Dots-Based Sensor for Selective Sulfanilamide Detection. Polymers (Basel) 2022; 14:3540. [PMID: 36080615 PMCID: PMC9459902 DOI: 10.3390/polym14173540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/25/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022] Open
Abstract
Combining molecular imprinted polymers and water-soluble manganese-doped zinc sulfide quantum dots (Mn2+: ZnS QDs), a new molecule imprinted polymers-based fluorescence sensor was designed. The molecule imprinted quantum dots (MIP@QDs) were constructed by coating molecular imprinted polymers layer on the surface of ZnS: Mn2+ QDs using the surface molecular imprinting technology. The developed MIP@QDs-based sensor was used for rapid and selective fluorescence sensing of sulfanilamide in water samples. The binding experiments showed that the MIP@QDs has rapid fluorescent responses, which are highly selective of and sensitive to the detection of sulfanilamide. The respond time of the MIP@QDs was 5 min, and the imprinting factor was 14.8. Under optimal conditions, the developed MIP@QDs-based sensor shows a good linearity (R2 = 0.9916) over a sulfanilamide concentration range from 2.90 × 10-8 to 2.90 × 10-6 mol L-1, with a detection limit of 3.23 × 10-9 mol L-1. Furthermore, the proposed MIP@QDs-based sensor was applied to the determination of sulfanilamide in real samples, with recoveries of 96.80%-104.33%, exhibiting good recyclability and stability. Experimental results showed that the prepared MIP@QDs has the potential to serve as a selective and sensitive sensor for the fluorescence sensing of sulfonamides in water samples.
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Affiliation(s)
- Xin Zhang
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China
- Research Center of Henan Provincial Agricultural Biomass Resource Engineering and Technology, Nanyang 473061, China
| | - Pengfei Jiao
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Yihan Ma
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Yuping Wei
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China
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Yuan Y, Zhu C, Hang Q, Zhao L, Xiong Z, Zhao J. Hydrophilic molecularly imprinted membranes based on GO-loading for simultaneously selective recognition and detection of three amphenicols drugs in pork and milk. Food Chem 2022; 384:132542. [DOI: 10.1016/j.foodchem.2022.132542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/21/2022] [Accepted: 02/21/2022] [Indexed: 11/04/2022]
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Synthesis, Characterization, and Application of Magnetized Lanthanum (III)-Based Metal-Organic Framework for the Organic Dye Removal from Water. ADSORPT SCI TECHNOL 2022. [DOI: 10.1155/2022/3513829] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A hybrid composite based on metal-organic framework (MOF) was chemically fabricated by embedding the magnetic Fe3O4 nanoparticles within amino-functionalized porous La-MOF (MOF/NH2) to produce a highly efficient and reusable composite of MOF/NH2/Fe3O4. Different proper techniques were used for the characterization of surface morphology and chemical arrangement of the prepared MOF/NH2/Fe3O4 composite. The characterization results using various techniques including Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscope (SEM), Brunauer, Emmett, and Teller analysis (BET), and vibrating sample magnetometer (VSM) approved the successful fabrication of MOF with amino arms on its surface besides the well magnetization using magnetic nanoparticles. The MOF/NH2/Fe3O4 composite showed enhanced adsorption capacity (618 mg/g) toward methyl orange (MO) anionic dye which is higher than many commercial reported adsorbents due to the presence of many types of adsorption sites (NH2 groups and lanthanum sites), large surface area of MOF, and the synergetic effect of magnetic nanoparticles. Moreover, the MOF/NH2/Fe3O4 composite showed selective adsorption of MO dye from dye mixtures owing to the electrostatic attraction. Also, the MOF/NH2/Fe3O4 composite retained over 90% of its efficiency for the dye removal even after six successive cycles. So, the present study provided a practical strategy for the design of functional MOF hybrid composites. Furthermore, due to the adaptability of its architectural form, it is a potential adsorbent material for industrial wastewater treatment uses.
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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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Yan Y, Jiang L, Zhang S, Shen X, Huang C. Specific “light-up” sensor made easy: An aggregation induced emission monomer for molecular imprinting. Biosens Bioelectron 2022; 205:114113. [DOI: 10.1016/j.bios.2022.114113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/13/2022] [Accepted: 02/16/2022] [Indexed: 11/02/2022]
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22
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Bagheri H, Pasha MA, Lakouraj MM, Hasantabar V, Mohseni M. Highly efficient, bioactive, and bifunctional sorbent p-n-p visible light heterogeneous photocatalyst utilizing ultra-fine ZnS nanoparticles embedded in a polymeric nanocomposite. RSC Adv 2022; 12:15950-15972. [PMID: 35733686 PMCID: PMC9134219 DOI: 10.1039/d2ra01810a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 05/17/2022] [Indexed: 11/30/2022] Open
Abstract
This study reports the successful synthesis of a ZnS@GO@Pani polymeric nanocomposite (NC) via chemical polymerization. The product was used for simultaneous photocatalytic degradation-adsorption of malachite green (MG), a carcinogenic and widely used dye. The physicochemical properties of the prepared NC were characterized by various techniques. Morphological and XRD results confirmed the fine size of ZnS nanoparticles (NPs) with an approximate mean size of 5 nm, uniformly distributed within the polymeric matrix. For comparative purposes, photocatalytic dye degradation-adsorption of this nanohybrid was explored both in the dark and under natural light. It was observed that 0.1 g of the ternary NC in MG aqueous solution (20 ppm) leads to dye adsorption within 15 minutes with an efficiency of 70% under dark conditions. Also, MG removal efficiency of up to 90% was achieved in 15 minutes under natural light owing to integrated photocatalytic degradation-adsorption mechanisms. Adsorption isotherm studies were performed considering Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich (D-R) models. The results showed that the Freundlich isotherm with R 2 = 0.988 is well consistent with the experimental data. Integrated photocatalytic degradation-adsorption kinetics were modeled with pseudo-first-order (PFO) and pseudo-second-order (PSO) models where PSO with R 2 = 0.999 best fitted the data, implying the predominant role of chemical adsorption in the dye removal process. Antibacterial tests revealed superior antibacterial activity of the prepared ZnS@GO@Pani NC against both Gram-negative and Gram-positive bacteria, demonstrating the remarkable synergistic effect of ZnS NPs embedded in the GO@Pani matrix. Accordingly, the prepared NC could be regarded as a promising candidate for wastewater treatment applications. The leaching and regeneration studies also confirmed that the prepared NC is a non-toxic dye removal agent with good reusability.
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Affiliation(s)
- Hanieh Bagheri
- Department of Solid-State Physics, Faculty of Basic Science, University of Mazandaran 47416-95447 Babolsar Iran
| | - Mohammad Akbarzadeh Pasha
- Department of Solid-State Physics, Faculty of Basic Science, University of Mazandaran 47416-95447 Babolsar Iran
| | - Moslem Mansour Lakouraj
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran Babolsar 47416-95447 Iran
| | - Vahid Hasantabar
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran Babolsar 47416-95447 Iran
| | - Mojtaba Mohseni
- Department of Molecular and Cell Biology, University of Mazandaran Babolsar 47416-95447 Iran
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23
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Dual responsive molecularly imprinted polymers based on UiO-66-DOX for selective targeting tumor cells and controlled drug release. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111219] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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24
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Zhou M, Wang P, Song Y, Li H, Luo J, Pan J. Hybrid hydrogel microspheres loading single-hole hollow imprinted particles for fast and selective uptake of 2′-deoxyadenosine. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120472] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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25
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Lv B, Xu K, Fang C, Yang Q, Li N, Jiang P, Wang W. Study on the performance of laterite in removing graphene oxide contaminants from aqueous solution. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198211060481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
To remove graphene oxide contaminant from aqueous solution, laterite was used as an adsorbent to conduct batch adsorption experiments on graphene oxide aqueous solutions. The effects of pH, adsorbent mass, graphene oxide initial concentration, contact time, and temperature on graphene oxide adsorption by laterite were studied predominantly. The results show that graphene oxide adsorption by laterite strongly depends on pH, the kinetic data conforms to the second-order kinetic model, and the isotherm data are in line with Langmuir and Freundlich models. Moreover, temperature increment is more conducive to improving the adsorption capacity. Combined with scanning electron microscopy, transmission electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and Raman microscopic tests, the internal changes of samples before and after adsorption were further revealed. The comprehensive analysis of the above experimental results shows that laterite is a good material, which can effectively remove graphene oxide contamination from aqueous solutions.
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Affiliation(s)
- Beifeng Lv
- School of Civil Engineering, Shaoxing University, Shaoxing, P.R. China
| | - Kaitong Xu
- School of Civil Engineering, Shaoxing University, Shaoxing, P.R. China
| | - Chulei Fang
- School of Civil Engineering, Shaoxing University, Shaoxing, P.R. China
| | - Qingqian Yang
- School of Civil Engineering, Shaoxing University, Shaoxing, P.R. China
| | - Na Li
- School of Civil Engineering, Shaoxing University, Shaoxing, P.R. China
| | - Ping Jiang
- School of Civil Engineering, Shaoxing University, Shaoxing, P.R. China
| | - Wei Wang
- School of Civil Engineering, Shaoxing University, Shaoxing, P.R. China
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26
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Azizi A, Shahhoseini F, Langille EA, Akhoondi R, Bottaro CS. Micro-gel thin film molecularly imprinted polymer coating for extraction of organophosphorus pesticides from water and beverage samples. Anal Chim Acta 2021; 1187:339135. [PMID: 34753563 DOI: 10.1016/j.aca.2021.339135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/05/2021] [Accepted: 09/15/2021] [Indexed: 11/17/2022]
Abstract
Molecularly imprinted polymers (MIPs) have become an important class of materials for selective and efficient adsorption of target analytes. Despite versatility of MIPs for fabrication in numerous formats, these materials have been primarily reported as solid phase extraction packing materials. An effective thin film MIP prepared on stainless steel substrate is reported here for high throughput enrichment of organophosphorus pesticides (OPPs) from water and beverage samples followed by liquid chromatography tandem mass spectrometry (LC-MS/MS) analysis. The key factors controlling performance as well as best practices for optimized fabrication of thin film MIPs are presented. A pseudo-phase diagram is introduced to evaluate and predict the effect of the ratio of porogen (solvent, 1-octanol) volume to relative crosslinker mass on the desired polymer features (i.e., porosity, surface area, capacity, and selectivity). At low porogen ratios, a macroporous polymer with insignificant selectivity is formed, whereas at high porogen ratios a micro-gel polymer with superior selectivity towards targets is obtained. The porosity and morphology determined with nitrogen adsorption and scanning electron microscopy were attributed to specific regions in the pseudo-phase diagram. Other factors influencing selectivity and stability of the polymer, such as type of the template and its ratios with monomer (methacrylic acid) and crosslinker (ethylene glycol dimethacrylate) were optimized. The prepared thin film MIPs were characterized using adsorption isotherms and adsorption kinetics, and evaluated for matrix effects (high humic acid content) and cross-reactivity in presence of other pesticides and pharmaceuticals. The optimized method provided limits of quantitation (LOQs) ranged from 0.002 to 0.02 ng mL-1 in water and from 0.095 to 0.48 ng g-1 in apple juice. Regarding inter-device variability (CV∼10% without normalization), excellent linearity (R2 > 0.99), satisfactory accuracies (90-110%) and precisions (<15%) were obtained.
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Affiliation(s)
- Ali Azizi
- Department of Chemistry, Memorial University of Newfoundland, Canada
| | | | - Evan A Langille
- Department of Chemistry, Memorial University of Newfoundland, Canada
| | - Reza Akhoondi
- Department of Chemistry, Memorial University of Newfoundland, Canada
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27
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Ayari MG, Favetta P, Warszycki D, Vasseur V, Hervé V, Degardin P, Carbonnier B, Si-Tahar M, Agrofoglio LA. Molecularly Imprinted Hydrogels Selective to Ribavirin as New Drug Delivery Systems to Improve Efficiency of Antiviral Nucleoside Analogue: A Proof-of-Concept Study with Influenza A Virus. Macromol Biosci 2021; 22:e2100291. [PMID: 34773718 DOI: 10.1002/mabi.202100291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 11/10/2021] [Indexed: 01/21/2023]
Abstract
This study describes the synthesis and evaluation of different imprinted hydrogels using ribavirin as template molecule. Ribavirin serves as a model molecule because it possesses a broad-spectrum antiviral effect against RNA viruses, which are expected as emerging viruses. The choice of monomers enables to stabilize the pre-polymerization complex and to synthesize biocompatible polymers. Predictive studies as well as experimental works conclude similar results on best ribavirin:monomers ratios. Thus, materials exhibit high selective cavities toward ribavirin. These affinities allow to show release profiles drastically different from the non-imprinted ones at two temperatures. The imprinted materials show a sustained profile able to release antiviral for more than 24 h. The hydrogels obtained are biocompatible with model cells retained, human lung epithelial BEAS-2B cells. Cell viability is excellent and pro-inflammatory response is insignificant when imprinted polymers are incubated with cells. Finally, viral tests carried out on Influenza A infected lung cells show that imprinted delivery systems delivering 1 to 3 µg of antiviral have the same efficiency as a medium containing 30 µg mL-1 of active agent. As a very interesting result, the molecularly imprinted polymers as drug delivery systems allow to increase the local concentration of antiviral, to improve their delivery when its bioavailability is low.
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Affiliation(s)
- Mohamed G Ayari
- ICOA, Univ. Orléans, CNRS UMR 7311, Rue de Chartres, Orléans, 45067, France
| | - Patrick Favetta
- ICOA, Univ. Orléans, CNRS UMR 7311, Rue de Chartres, Orléans, 45067, France
| | - Dawid Warszycki
- Department of Medicinal Chemistry, Institute of Pharmacology, Polish Academy of Sciences (IPPAS), 12 Smetna Street, Kraków, 31-3343, Poland
| | - Virginie Vasseur
- CEPR, Inserm U1100, Univ. Tours, 10 Boulevard Tonnellé, Tours, 37032, France
| | - Virginie Hervé
- CEPR, Inserm U1100, Univ. Tours, 10 Boulevard Tonnellé, Tours, 37032, France
| | - Pierre Degardin
- ICOA, Univ. Orléans, CNRS UMR 7311, Rue de Chartres, Orléans, 45067, France
| | - Benjamin Carbonnier
- ICMPE, CNRS UMR 7182, Université Paris Est, 2-8 rue Henri Dunant, Thiais, 94320, France
| | - Mustapha Si-Tahar
- CEPR, Inserm U1100, Univ. Tours, 10 Boulevard Tonnellé, Tours, 37032, France
| | - Luigi A Agrofoglio
- ICOA, Univ. Orléans, CNRS UMR 7311, Rue de Chartres, Orléans, 45067, France
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28
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Yuan Y, Yuan X, Hang Q, Zheng R, Lin L, Zhao L, Xiong Z. Dummy molecularly imprinted membranes based on an eco-friendly synthesis approach for recognition and extraction of enrofloxacin and ciprofloxacin in egg samples. J Chromatogr A 2021; 1653:462411. [PMID: 34325296 DOI: 10.1016/j.chroma.2021.462411] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 06/30/2021] [Accepted: 07/09/2021] [Indexed: 12/29/2022]
Abstract
In this work, novel dummy molecularly imprinted membranes (MIMs) were fabricated using the nylon-66 (NY-66) membranes as the subtracts based on an eco-friendly "sandwich" technology with less consumption of organic reagents at mild conditions for recognition and extraction of enrofloxacin (ENR) and ciprofloxacin (CIP) in egg samples. The prepared MIMs were characterized by SEM, ATR-FTIR and TGA, showing the successful construction of uniform and porous polymers on the surface of membranes. A series of adsorption affinity tests were investigated, indicating the prepared materials had specific recognition capacity and excellent stability as novel sorbents. Furthermore, Box-Benhnken design (BBD) and single factor investigations were applied to optimize pretreatment procedures, coupling with Ultra High Performance Liquid Chromatograph (UHPLC) detection. The method showed a good correlation (r2>0.9999) within the linear range of 5.0~5000.0 µg kg-1, and limit of detection (LOD) of ENR and CIP were 0.3 and 0.7 µg kg-1, respectively. The mean recovery ranged from 84.5% to 97.0% within relative standard deviations (RSDs) of 10.2%. Finally, ENR and CIP were not detected in 3 batches of egg samples. The current study developed the dummy MIMs as sorbents combined with UHPLC analysis for extraction and detection of target analytes in food matrices.
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Affiliation(s)
- Yue Yuan
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Xucan Yuan
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Qian Hang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Runjiao Zheng
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Longyi Lin
- Faculty of life science and biopharmaceutics, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Longshan Zhao
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China
| | - Zhili Xiong
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road Shenhe District, Shenyang, Liaoning, 110016, PR China.
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Qian L, Liu W, Liu H, Nica V, Zhang S, Zhou Q, Song W, Zhang Q. Fabrication of Raspberry-like Cytochrome C Surface-Imprinted Nanoparticles Based on MOF Composites for High-Performance Protein Separation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:31010-31020. [PMID: 34160200 DOI: 10.1021/acsami.1c07107] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The development of high-performance protein-imprinted materials is vital to meet the requirements of proteomics research but remains a challenge. Herein, a new type of raspberry-like cytochrome C-imprinted nanoparticle was first designed and fabricated via surface imprinting technology combined with a template immobilization strategy. In particular, the state-of-the-art metal-organic framework (MOF)/carbon nanoparticle (CN) composites were selected as protein immobilization carriers for two advantages: (1) the composites reflected the intrinsic characteristics of MOFs including flexible design, facile preparation, and extensive interactions with proteins and (2) the utilization of composites also overcame the issue associated with the severe agglomeration of individual MOFs during the post-use process. Therefore, the as-prepared composites exhibited a regular raspberry-like shape with good dispersion (polydispersity index (PDI) < 0.25), high specific surface area (551.4 m2 g-1), and outstanding cytochrome C immobilization capacity (900 mg g-1). Furthermore, a zwitterionic monomer was chosen to participate in the synthesis of an imprinting layer to reduce the nonspecific binding with proteins. As a result, the unique design presented here in both the protein immobilization carrier and the selected polymer composition endowed the imprinted material (noted as CN@UIO-66@MIPs) with the excellent ability for cytochrome C enrichment with extremely high recognition ability (imprinting factor (IF) = 6.1), rapid adsorption equilibrium time (40 min), and large adsorption capacity (815 mg g-1). Furthermore, encouraged by the experimental results, we successfully used CN@UIO-66@MIPs to specifically capture cytochrome C in mixed protein solutions and biological samples, which proved them to be a potential candidate for protein separation and purification.
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Affiliation(s)
- Liwei Qian
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an 710072, China
| | - Wenqian Liu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Hanbin Liu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Valentin Nica
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- Department of Physics, "Alexandru Ioan Cuza" University of Iasi, Iasi 700506, Romania
| | - Sufeng Zhang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Qiusheng Zhou
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Wenqi Song
- School of Science, Xijing University, Xi'an 710123, China
| | - Qiuyu Zhang
- School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an 710072, China
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30
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Peng H, Li F, Zeng Y, Li M, Liao J, Lan T, Yang Y, Yang J, Liu N. A self-assembled supramolecular organic material for selective extraction of uranium from aqueous solution. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07753-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Wang Z, Wang X, Li X, Zhang H, Wei J, Zhou Y. Effect of structure matching in the adsorption process: The preparation of alkylbenzene-functionalized polypropylene nonwoven using surface modification for adsorbing nonylphenol. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104874] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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32
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Shahhoseini F, Langille EA, Azizi A, Bottaro CS. Thin film molecularly imprinted polymer (TF-MIP), a selective and single-use extraction device for high-throughput analysis of biological samples. Analyst 2021; 146:3157-3168. [PMID: 33999057 DOI: 10.1039/d0an02228d] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Enhancing selectivity, reducing matrix effects and increasing analytical throughput have been the main objectives in the development of biological sample preparation techniques. A thin film molecularly imprinted polymer (MIP) is employed for extraction and analysis of tricyclic antidepressants (TCAs) as a model class of compounds in human plasma for the first time to reach the abovementioned goals. The thin film MIPs prepared on a metal substrate can be used directly for extraction from biological matrices with no sample manipulation steps and no pre-conditioning. This method was validated with good linearity (R2 > 0.99 in 1.0-500.0 ng mL-1 range), excellent accuracy (90% -110%) and precision (RSD % value less than 15%) in pooled human plasma samples (N = 3). The limits of quantitation (LOQ) for TCAs in plasma samples were between 1.0-5.0 ng mL-1 which are lower than the therapeutic ranges of these drugs. Kinetic and isotherm studies showed the superior performance of MIP sorbent compared to a non-imprinted polymer (NIP) sorbent in extracting TCAs from a bovine serum albumin (BSA) solution. The optimized and validated method for pooled human plasma was utilized for monitoring the concentration of TCAs in three patient samples who had been prescribed TCAs. These selective single-use thin film extraction devices are promising for efficient and fast procedures for analyzing biological samples.
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Affiliation(s)
- Fereshteh Shahhoseini
- Department of Chemistry, Memorial University of Newfoundland, St. John's, A1B 3X7, Canada.
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33
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Koh KY, Zhang S, Paul Chen J. Incorporation of lanthanum particles to polyethersulfone ultrafiltration membrane for specific phosphorus uptake: Method comparison and performance assessment. J Colloid Interface Sci 2021; 601:242-253. [PMID: 34082229 DOI: 10.1016/j.jcis.2021.05.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/26/2021] [Accepted: 05/05/2021] [Indexed: 12/23/2022]
Abstract
It is known that phosphorus is a major contributor to the occurrence of eutrophication. As such, it is of importance to remove it from water. Nanofiltration (NF) has low phosphorus selectivity and requires a relatively high pressure to achieve the separation, though it is capable of removing phosphorus. In this paper, we report our findings of method development on fabrication and application of a lanthanum (La)-incorporated polyethersulfone (PES)/sulfonated polyphenylenesulfone membrane for phosphorus treatment. The performances of membranes fabricated by the in situ and ex situ methods were examined in a series of batch adsorption and dead-end filtration experiments. The membrane fabricated by the in situ method demonstrated higher adsorption capacity (48.0 mg/g), faster kinetics (equilibrium in 6 h) and higher water permeance (>100 LMH/bar), which outperformed that by the ex situ method. Furthermore, the PES/La (in situ) membrane showed a comparable phosphate removal with a much higher permeance (about 20 times) than the NF90 (a nanofiltration commercial membrane). Moreover, the multiple cycles of filtration study showed that the membrane was reused satisfactorily in treating low-phosphate contaminated water and meeting the stringent phosphate standard limit of 0.15 mg/L. The removal of phosphate by the membranes was attributed to the mechanisms of ion exchange and electrostatic attraction/complexation. The study reported here provides a better approach in fabrication of functionalized membrane for water treatment, such as phosphate removal in either batch adsorption or membrane filtration process.
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Affiliation(s)
- Kok Yuen Koh
- Department of Civil and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore
| | - Sui Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576, Singapore.
| | - J Paul Chen
- Department of Civil and Environmental Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore.
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34
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Zhang Y, Chen Y, Kang ZW, Gao X, Zeng X, Liu M, Yang DP. Waste eggshell membrane-assisted synthesis of magnetic CuFe2O4 nanomaterials with multifunctional properties (adsorptive, catalytic, antibacterial) for water remediation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125874] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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35
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Abu-Alsoud GF, Bottaro CS. Porous thin-film molecularly imprinted polymer device for simultaneous determination of phenol, alkylphenol and chlorophenol compounds in water. Talanta 2021; 223:121727. [PMID: 33298259 DOI: 10.1016/j.talanta.2020.121727] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 12/18/2022]
Abstract
A porous water-compatible molecularly imprinted polymer (MIP) coating using catechol as a pseudo-template and a water-soluble functional monomer (4-vinyl benzoic acid) with ethylene glycol dimethacrylate as the crosslinker was developed for extraction of phenols from environmental water samples. The MIP devices were combined with ultra high performance liquid chromatography with a photodiode array detector (UHPLC-PDA) suitable for the simultaneous determination of trace levels of phenolic compounds with a wide range of polarities -phenol, alkylphenols and chlorophenols- in seawater and produced water. Parameters that influence extraction efficiency (salinity, pH, polymer mass, desorption solvent, and desorption time) were optimized to give method detection limits (LOD) ranging from 0.1 to 2 μg L-1 and linearity (R2>0.99) over at least three orders of magnitude for the hydrophobic phenols (e.g., 0.5-1000 μg L-1 for 2,4,6-trichlorophenol) and ~2 orders of magnitude for the light phenols (e.g., 10-120 μg L-1 for phenol, 5-120 μg L-1 for methylphenols and 2-chlorophenol, 0.5-120 μg L-1 3-methyl-4-chlorophenol and 2,4-dichlorophenol). The recoveries from authentic spiked samples ranged from 85 to 100% with %RSDs of 0.2-14% for seawater and 81-107% with %RSD of 0.1-11% for produced water. The resulting MIP-based extraction requires no pre-conditioning of the sorbent, and because the required sample size is small and sample manipulation is limited, the method is easy to multiplex for high throughput sample processing.
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Affiliation(s)
- Ghadeer F Abu-Alsoud
- Department of Chemistry, Memorial University of Newfoundland, St. John's, NL, A1B 3X7, Canada
| | - Christina S Bottaro
- Department of Chemistry, Memorial University of Newfoundland, St. John's, NL, A1B 3X7, Canada.
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36
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Xu H, Gao Y, Tao Q, Li A, Liu Z, Jiang Y, Liu H, Yang R, Liu Y. Synthesizing a surface-imprinted polymer based on the nanoreactor SBA-15 for optimizing the adsorption of salicylic acid from aqueous solution by response surface methodology. NEW J CHEM 2021. [DOI: 10.1039/d1nj00016k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The molecularly imprinted polymer prepared on the nanoreactor SBA-15 displayed excellent ordered mesoporous structure and superior adsorption property for salicylic acid.
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Affiliation(s)
- Haiqing Xu
- Key Laboratory of Regional Resource Exploitation and Medicinal Research
- Huaiyin Institute of Technology
- Huai'an 223003
- P. R. China
| | - Yuhang Gao
- Key Laboratory of Regional Resource Exploitation and Medicinal Research
- Huaiyin Institute of Technology
- Huai'an 223003
- P. R. China
| | - Qiantu Tao
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Aiping Li
- Key Laboratory of Regional Resource Exploitation and Medicinal Research
- Huaiyin Institute of Technology
- Huai'an 223003
- P. R. China
| | - Zhanchao Liu
- School of Materials Science and Engineering
- Jiangsu University of Science and Technology
- Zhenjiang
- China
| | - Yinhua Jiang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Hongwei Liu
- College of Civil Engineering
- Yancheng Institute of Technology
- Yancheng
- China
| | - Rongguang Yang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Yan Liu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
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37
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Lu YC, Xiao WW, Wang JY, Xiong XH. Rapid isolation and determination of bisphenol A in complicated matrices by magnetic molecularly imprinted electrochemical sensing. Anal Bioanal Chem 2020; 413:389-401. [PMID: 33145646 DOI: 10.1007/s00216-020-03006-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/16/2020] [Accepted: 10/12/2020] [Indexed: 01/27/2023]
Abstract
Because of its widespread distribution in the environment, bisphenol A (BPA) has become a global concern as an endocrine disruptor and a threat to human health through the food chain. Thus an efficient determination method is urgently needed for monitoring the levels of BPA. Herein, a novel electrochemical technique for the detection of BPA was performed by synchronous extraction and pre-concentration of BPA onto magnetic molecularly imprinted polymer (BMMIP), with subsequent readout on a magneto-actuated glassy carbon electrode (MGCE) by differential pulse voltammetry. Compared to the current methods of BPA determination, this BMMIP-based electrochemical sensor (BMMIPs@MGCE) not only simplifies the sample handling procedures substantially, without filtration, centrifugation, or other complex operations, but also can be easily renewed by a controllable magnetic field. As a sensor component, the core-shell BMMIPs exhibited excellent binding capacity (Qe = 82.5 mg g-1), short adsorption equilibrium time (30 s), and outstanding selectivity (k' = 7.239) towards BPA, as well as stability and recyclability. Importantly, the BMMIPs@MGCE sensor was successfully applied for the on-site monitoring and rapid detection of BPA in complicated real-world specimens, with good recoveries (81.31-119.77%) and a low limit of detection (0.133 μmol L-1). Therefore, the stable and low-cost BMMIPs@MGCE sensor provides a new approach for the rapid determination of BPA in the field of environmental control and food safety. Graphical abstract.
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Affiliation(s)
- Yi Chen Lu
- College of Food Science and Light Industry, Nanjing Tech University, Puzhu South Street No. 30, Nanjing, 211816, Jiangsu, China.
| | - Wei Wei Xiao
- College of Food Science and Light Industry, Nanjing Tech University, Puzhu South Street No. 30, Nanjing, 211816, Jiangsu, China
| | - Jun Yun Wang
- College of Food Science and Light Industry, Nanjing Tech University, Puzhu South Street No. 30, Nanjing, 211816, Jiangsu, China
| | - Xiao Hui Xiong
- College of Food Science and Light Industry, Nanjing Tech University, Puzhu South Street No. 30, Nanjing, 211816, Jiangsu, China.
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38
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Feroz M, Vadgama P. Molecular Imprinted Polymer Modified Electrochemical Sensors for Small Drug Analysis: Progress to Practical Application. ELECTROANAL 2020. [DOI: 10.1002/elan.202060276] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Momina Feroz
- Institute of Chemistry University of the Punjab 54590 Lahore Pakistan
| | - Pankaj Vadgama
- School of Engineering and Materials Science Queen Mary University of London Mile End Road London E1 4NS United Kingdom
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39
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Abu-Alsoud GF, Hawboldt KA, Bottaro CS. Assessment of cross-reactivity in a tailor-made molecularly imprinted polymer for phenolic compounds using four adsorption isotherm models. J Chromatogr A 2020; 1629:461463. [PMID: 32841770 DOI: 10.1016/j.chroma.2020.461463] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/15/2020] [Accepted: 08/07/2020] [Indexed: 02/07/2023]
Abstract
Cross-reactivity is an important feature of molecularly imprinted polymers (MIPs), and is central to successful use of a pseudo-template in molecular imprinting. The adsorption and cross-reactivity of a molecularly imprinted polymer (MIP) designed for recognition of phenols from water was assessed using four different isotherm models (Langmuir (LI), Freundlich (FI), Langmuir-Freundlich (L-FI), and Brunauer, Emmett, and Teller (BET)). The L-FI model succeeded in explaining the cross-reactivity behavior through the total number of binding sites, the affinity constants and heterogeneity indices of the small phenols (phenol (ph), 2-methylphenol (2-MP), 3-methylphenol (3-MP), 2-chlorophenol (2-CP), 2,4-dimethylphenol (DMP), 2,4-dichlorophenol (DCP), 4-chloro-3-methylphenol (CMP)) with evidence that the phenols compete for binding sites based on their hydrophobicity as well as π-π, π-σ and dipole-dipole intermolecular forces. The recognition of the large phenols (2,4,6-trichlorophenol (TCP), pentachlorophenol (PCP), 4-teroctylphenol (4-OP), 4-nonylphenol (4-NP), which have much higher binding affinities than the smaller phenolic compounds, was explained with the BET isotherm model that predicts that multiple layers adsorb to the adsorbed monolayer. The adsorption behavior with MIPs is also shown to be superior to corresponding non-imprinted polymers and applicability of MIPs for trace analysis is highlighted.
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Affiliation(s)
- Ghadeer F Abu-Alsoud
- Department of Chemistry, Memorial University of Newfoundland, St. John's, NL, A1B 3X7, Canada
| | - Kelly A Hawboldt
- Department of Process Engineering, Memorial University of Newfoundland, St. John's, NL, A1B 3X5, Canada
| | - Christina S Bottaro
- Department of Chemistry, Memorial University of Newfoundland, St. John's, NL, A1B 3X7, Canada.
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40
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Kazemi R, Potts EI, Dick JE. Quantifying Interferent Effects on Molecularly Imprinted Polymer Sensors for Per- and Polyfluoroalkyl Substances (PFAS). Anal Chem 2020; 92:10597-10605. [PMID: 32564597 DOI: 10.1021/acs.analchem.0c01565] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are emerging as harmful environmental micropollutants. Generally, PFAS species are quantified by mass spectrometry, for which a collected sample is taken to a centralized facility. Robust techniques to quantify PFAS in the field are necessary to diagnose environmental contamination at the earliest onset of pollution. Here, we developed a molecularly imprinted polymer (MIP) electrode for the detection of perfluorooctanesulfonate (PFOS) and explored the MIP surface and the effects of interfering molecules. MIPs were formed by the anodic deposition of o-phenylenediamine (o-PD) in the presence of PFOS template molecules on a glassy carbon macroelectrode. The performance of the resulting MIP electrode was evaluated by the current obtained from the oxidation of ferrocene carboxylic acid as the electrochemical probe. The MIP electrode was able to detect PFOS with a detection limit of 0.05 nM, which is lower than the health advisory limit of 0.14 nM reported by the U.S. EPA. To better understand PFOS association into the MIP, a Langmuir binding model was developed based on the changes in electrochemical responses of the MIP. Fitting the model to the experimental data gave an association constant (KA) of 4.95 × 1012 over a PFOS concentration range of 0 to 0.05 nM. The binding isotherm of other commonly found substances in contaminated water sources such as chloride, humic acid, perfluorooctanoic acid (PFOA), and perfluorobutanesulfonate (PFBS) was also investigated. In the case of chloride and humic acid, the calculated KA values of 9.05 × 107 and 6.01 × 105, respectively, indicate relatively weak adsorption of these species on the MIP. However, PFOA, which is the carboxylate analog of PFOS, revealed a very close KA value (3.41 × 1012) to PFOS. A greater KA value (1.43 × 1013) was obtained for PFBS, which possesses the same functional group and a smaller molecular size compared to PFOS. The presented platform emphasizes the necessity to develop new strategies to make MIP sensors more specific if practical applications are to be pursued.
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Affiliation(s)
- Rezvan Kazemi
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Emili I Potts
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Jeffrey E Dick
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States.,Lineberger Comprehensive Cancer Center, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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