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Zhao L, Tang X, Ni X, Zhang J, Ineza Urujeni G, Wang D, He H, Dramou P. Efficient and Selective Adsorption of cis-Diols via the Suzuki-Miyaura Cross-Coupling-Modified Phenylboronic-Acid Functionalized Covalent Organic Framework. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1884-1891. [PMID: 38190755 DOI: 10.1021/acs.langmuir.3c03249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
In this work, a functional group (boronic acid) was modified onto a covalent organic framework (COF) using the Suzuki-Miyaura cross-coupling reaction to obtain a phenylboronic acid-functionalized covalent organic framework (BrCOF-PBA). This product was used as a selective adsorbent and largely as an efficient solid-phase extractant of flavonoids containing cis-diol structures like quercetin (QUE). Five or six-membered cyclic esters generated from the COF were characterized, and some physicochemical studies were performed, resulting in excellent chemical stability and crystallinity, high specific surface area, stable pore structure, and regular pore size. Unique selectivity of BrCOF-PBA was observed toward QUE and exhibited a huge adsorption capacity (213.96 mg g-1) in a relatively short time (90 min). In contrast, the adsorption properties of morin (MOR) and kaempferol (KAE) with a certain degree of chemical similarity to QUE were only 27.62 and 21.76 mg g-1, respectively. BrCOF-PBA also demonstrated good reusability and robustness, making it an attractive composite material for further analytical applicability.
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Affiliation(s)
- Linjie Zhao
- Department of Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Xue Tang
- Department of Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Xu Ni
- Department of Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Jingjing Zhang
- Department of Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | | | - Dan Wang
- Department of Chemistry, China Pharmaceutical University, Nanjing 211198, China
| | - Hua He
- Department of Chemistry, China Pharmaceutical University, Nanjing 211198, China
- Key Laboratory of Biomedical Functional Materials, China Pharmaceutical University, Nanjing 211198, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 211198, China
| | - Pierre Dramou
- Department of Chemistry, China Pharmaceutical University, Nanjing 211198, China
- Key Laboratory of Biomedical Functional Materials, China Pharmaceutical University, Nanjing 211198, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 211198, China
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Nguyen VT, Giang HH, Tran TTN, Van TK, Tran T. Synthesis and Characteristics of Polymer-Mediated Curcumin Molecular Imprinting for Quantitative Determination of Curcumin in Food Samples. J Chromatogr A 2024; 1713:464567. [PMID: 38103474 DOI: 10.1016/j.chroma.2023.464567] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/21/2023] [Accepted: 12/07/2023] [Indexed: 12/19/2023]
Abstract
In this study, a molecularly imprinted polymer (MIP)-based extraction process for determining curcumin in food samples was carried out. MIP and NIP were thermally synthesized in acetonitrile solvent (porogen) using methacrylic acid as a functional monomer, ethylene glycol dimethacrylate as a cross-linking agent, azobisisobutyronitrile as an initiator, and curcumin as a template molecule. Parameters affecting the synthesis process, such as temperature, the ratio of the components in the reaction, and the extraction solvent, were investigated. The characteristics of the synthesized material were examined using infrared spectroscopy and scanning electron microscopy. The maximum adsorption capacity of the material was found to be 1.34 mg/g MIP with an adsorption efficiency of 89.96% for MIP and 12.35% for NIP. The MIP material exhibited high selectivity for curcumin compared to other compounds such as quercetin (18.00%), rutin (14.74%), and ketoconazole (0.00%). The analysis method for curcumin using the MIP material was performed with validated parameters including linear range (1 - 25 mg/L, r2 = 0.9997), accuracy (recovery rate of 90.90 %), precision (RSDR = 0.338 %, RSDr = 1.591 %), detection limit (0.051 mg/L), and quantification limit (0.156 mg/L). The validation results indicated that the HPLC-DAD method was entirely suitable for analyzing the curcumin content in food samples.
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Affiliation(s)
- Van-Trong Nguyen
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Vietnam.
| | - Hoang Huu Giang
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Vietnam
| | - T T Nha Tran
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Vietnam
| | - Thanh-Khue Van
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Vietnam
| | - ThanhThuy Tran
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Vietnam
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Huang Y, Xu Y, Wang M, Fu X, Chen Y, Hu T, Feng G, Yu C, Xia Z. Strategy of Choosing Templates in Molecular Imprinting to Expand the Recognition Width for Family-Selectivity. Anal Chem 2023. [PMID: 37428886 DOI: 10.1021/acs.analchem.3c01487] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
The class-selective molecular-imprinted polymers (MIPs) have shown the recognition ability to multiple targeted molecules through using one or multiple templates. However, choosing the right templates, the core problem, still lacks a systemic guide and decision-making. In this work, we propose a strategy of selecting templates through expanding the recognition width for the improvement of class-selectivity. First, three families of genotoxic impurity (GTI) were selected as model objects, and the spatial size and binding energy of each GTI-monomer complexes were obtained and compared by computational simulation. The two indexes of energy width (WE) and size width (WL) were introduced to compare the similarity and differences on the two recognition factors, binding strength and spatial size, among these GTIs in each family. Through shortening the width to increase similarity on binding energy and size, the dual templates in the aromatic amines (AI) family and sulfonic acid esters (SI) family were successfully selected. Correspondingly, the prepared dual-template MIPs in the two GTI families can simultaneously recognize all the GTIs comparing with that of single template MIP, respectively. Meanwhile, through comparing the adsorption capacity of the selected template and its analogues in one GTI family, the recognition efficiency of the dual-template MIPs was higher than that of the single-template MIP. This indicates that though using the selected right templates, the higher class-selectivity and the larger recognition width can be realized. Thus, this work can solve the problem of blind template selection, and provide the useful theoretical guidance for designing family-selective molecular imprinting.
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Affiliation(s)
- Yike Huang
- School of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Yugao Xu
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Min Wang
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Xiaoya Fu
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Ya Chen
- School of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Ting Hu
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Gang Feng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Chao Yu
- School of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Zhining Xia
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
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Zhao Y, Wang R, Wang Y, Jie G, Zhou H. Dual-channel molecularly imprinted sensor based on dual-potential electrochemiluminescence of Zn-MOFs for double detection of trace chloramphenicol. Food Chem 2023; 413:135627. [PMID: 36773365 DOI: 10.1016/j.foodchem.2023.135627] [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: 10/29/2022] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
Functionalized metal organometallic frameworks (MOFs) offer unique advantages in the field of sensing due to their versatility and tunable optical properties. In this work, a new dual-potential electrochemiluminescence (ECL) molecularly imprinted sensor using single Zn-MOF signal probe was designed for double detection of trace chloramphenicol (CAP). As dual-signal ECL emitters, Zn-MOFs were firstly modified on the electrode, showing excellent ECL emission in both cathodic and anodic potential. Then the molecularly imprinted polymer (MIP) was electrochemically prepared using o-phenylenediamine (O-PD) and CAP as a template molecule on the Zn-MOFs/electrode. After CAP as a molecular recognition element was eluted and removed from the Zn-MOFs/MIP/electrode, a new ECL sensor was developed for CAP detection by re-adsorption of CAP on the MIP, resulting in "off" of ECL signal. Compared with the conventional single-signal luminophores, Zn-MOFs show more stable and excellent dual ECL signals, which greatly improve the discriminability and accuracy of CAP trace detection. Under the optimal conditions, the linear range of CAP detection was 1 × 10-14-1 × 10-8 M, and the minimum limits of detection (LOD) were 2.1 fM and 2.5 fM for cathode and anode ECL, respectively. This is the first time that Zn-MOFs are used as dual-ECL emitters for molecular sensing systems, and the proposed dual-channel sensing system is flexibly applicable to sensitive detection of other antibiotics, which has broad practical application in food safety.
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Affiliation(s)
- Yu Zhao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, PR China; College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Runze Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, PR China; College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Yuehui Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, PR China; College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Guifen Jie
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, PR China; College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China.
| | - Hong Zhou
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, PR China; College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology, Qingdao 266042, PR China.
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Dual-template hydrophilic imprinted resin as an adsorbent for highly selective simultaneous extraction and determination of multiple trace plant growth regulators in red wine samples. Food Chem 2023; 411:135471. [PMID: 36669342 DOI: 10.1016/j.foodchem.2023.135471] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 12/21/2022] [Accepted: 01/09/2023] [Indexed: 01/12/2023]
Abstract
In recent years, numerous plant growth regulators have been found in foods and have a toxicity to human health, so its simultaneous multiple monitoring is urgently. For the first time, a rapid, accurate, and high-selective method was established to extract and determine multiple plant growth regulators simultaneously in red wines using a new dual-template hydrophilic molecularly imprinted resin (DHMIR) as an adsorbent of pipette tip solid-phase extraction coupled with HPLC. The as-prepared DHMIR combined the advantages of the hydrophilicity of hydrophilic resin and multi-imprinted recognition of dual-template molecular imprinting, overcoming the poor imprinted recognition ability of traditional imprinting materials in water and low extraction efficiency to multiple targets. Under the optimized conditions, the proposed method exhibited high sensitivity (2.29-3.94 ng mL-1) and recoveries (80.9-109.0 %) using only 15 mg DHMIR. This study provides an effective strategy for rapid, accurate, low-cost, and high-selective determination of the multiple analytes in food samples.
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Wang J, Feng J, Lian Y, Sun X, Wang M, Sun M. Advances of the functionalized covalent organic frameworks for sample preparation in food field. Food Chem 2022. [DOI: 10.1016/j.foodchem.2022.134818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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7
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Yang Y, Shen X. Preparation and Application of Molecularly Imprinted Polymers for Flavonoids: Review and Perspective. Molecules 2022; 27:7355. [PMID: 36364181 PMCID: PMC9653670 DOI: 10.3390/molecules27217355] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/16/2022] [Accepted: 10/19/2022] [Indexed: 08/24/2023] Open
Abstract
The separation and detection of flavonoids from various natural products have attracted increasing attention in the field of natural product research and development. Depending on the high specificity of molecularly imprinted polymers (MIPs), MIPs are proposed as efficient adsorbents for the selective extraction and separation of flavonoids from complex samples. At present, a comprehensive review article to summarize the separation and purification of flavonoids using molecular imprinting, and the employment of MIP-based sensors for the detection of flavonoids is still lacking. Here, we reviewed the general preparation methods of MIPs towards flavonoids, including bulk polymerization, precipitation polymerization, surface imprinting and emulsion polymerization. Additionally, a variety of applications of MIPs towards flavonoids are summarized, such as the different forms of MIP-based solid phase extraction (SPE) for the separation of flavonoids, and the MIP-based sensors for the detection of flavonoids. Finally, we discussed the advantages and disadvantages of the current synthetic methods for preparing MIPs of flavonoids and prospected the approaches for detecting flavonoids in the future. The purpose of this review is to provide helpful suggestions for the novel preparation methods of MIPs for the extraction of flavonoids and emerging applications of MIPs for the detection of flavonoids from natural products and biological samples.
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Affiliation(s)
| | - Xiantao Shen
- State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Hangkong Road #13, Wuhan 430030, China
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8
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A deep eutectic solvent magnetic molecularly imprinted polymer for extraction of laminarin from seaweeds. Mikrochim Acta 2022; 189:399. [PMID: 36178521 DOI: 10.1007/s00604-022-05488-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 09/06/2022] [Indexed: 10/14/2022]
Abstract
Magnetic molecular imprinted polymers (MIPs) based on 4-vinylbenzyltrimethylammonium chloride (VBTAC) and 4-vinylbenzoic acid (VBA) deep eutectic solvent as dual functional monomers was successfully synthesized for the specific recognition of laminarin. The MIPs were characterized by transmission electron microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, thermal gravimetric analysis, and vibrating sample magnetometer analysis. The results showed that the MIPs were spheres of a uniform size, with the surface rich in cavities and excellent superparamagnetism properties. The adsorption experiments showed that MIPs conform to pseudo-second-order kinetics and Langmuir isotherm adsorption. The maximum adsorption capacity under optimal conditions was 322.58 μg·mg-1 and the imprinting factor was 2.13. Under the optimized conditions, the limit of detection (LOD) of the developed material was 6.6 µM. Linearity of the material was obtained within the range 20-800 µM with a coefficient of determination (r2) being better 0.999. Relative standard deviations (RSDs) were less than 3.96%, and satisfactory recoveries were between 94.55 and 97.39%. The actual sample analysis manifested that MIPs could effectively separate laminarin from Laminarin japonica Aiesch.
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Hu S, Yan G, Zhang L, Yi S, Zhang Z, Wang Y, Chen D. Highly Selective Colorimetric Detection of Cu 2+ Using EDTA-Complexed Chlorophyll-Copper/ZnO Nanorods with Cavities Specific to Cu 2+ as a Light-Activated Nanozyme. ACS APPLIED MATERIALS & INTERFACES 2022; 14:37716-37726. [PMID: 35971946 DOI: 10.1021/acsami.2c08946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this study, chlorophyll-copper (ChlCu)-modified ZnO nanorods (ChlCu/ZnO) were prepared, and then sodium ethylenediamine tetraacetate (EDTA) was used to remove part of Cu2+ in ChlCu, leaving cavities with specific adsorption activity for Cu2+ in E-ChlCu/ZnO. Appropriate EDTA treatment improved the photoactivity of ChlCu/ZnO and the adsorption selectivity to Cu2+. However, excessive EDTA treatment might lead to the collapse of the ChlCu structure, resulting in a decrease in photoactivity. The E-ChlCu/ZnO sample with 8 h of ChlCu treatment and 2 h of EDTA treatment showed optimal photoactivity. The as-prepared E-ChlCu/ZnO exhibited activity as a light-activated nanozyme, which could oxidize 3,3',5,5'-tetramethylbenzidine (TMB) to blue under illumination, but when Cu2+ was present in the solution, this colorimetric reaction was inhibited; therefore, E-ChlCu/ZnO could be used for colorimetric detection of Cu2+. Because of the existence of specific cavities, E-ChlCu/ZnO showed excellent detection selectivity, a wide linear detection range (0-1 and 1-15 μM), and a low detection limit (0.024 μM) in the colorimetric detection of Cu2+.
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Affiliation(s)
- Shiyu Hu
- School of Materials Science and Engineering, Zhengzhou University, 100 Science Road, Zhengzhou 450001, China
| | - Guohao Yan
- School of Materials Science and Engineering, Zhengzhou University, 100 Science Road, Zhengzhou 450001, China
| | - Liying Zhang
- School of Materials Science and Engineering, Zhengzhou University, 100 Science Road, Zhengzhou 450001, China
| | - Shasha Yi
- School of Materials Science and Engineering, Zhengzhou University, 100 Science Road, Zhengzhou 450001, China
| | - Zongtao Zhang
- School of Materials Science and Engineering, Zhengzhou University, 100 Science Road, Zhengzhou 450001, China
| | - Yu Wang
- School of Materials Science and Engineering, Zhengzhou University, 100 Science Road, Zhengzhou 450001, China
| | - Deliang Chen
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China
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Sheng S, Zhang Z, Wang M, He X, Jiang C, Wang Y. Synthesis of MIL-125(Ti) derived TiO2 for selective photoelectrochemical sensing and photocatalytic degradation of tetracycline. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140441] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Surapong N, Burakham R. Magnetic Molecularly Imprinted Polymer for the Selective Enrichment of Glyphosate, Glufosinate, and Aminomethylphosphonic Acid Prior to High-Performance Liquid Chromatography. ACS OMEGA 2021; 6:27007-27016. [PMID: 34693120 PMCID: PMC8529597 DOI: 10.1021/acsomega.1c03488] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
A novel mixed iron hydroxide molecularly imprinted polymer (MIH-MIP) was synthesized via polymerization using mixed-valence iron hydroxide as a magnetic supporter, glyphosate as a template, acrylamide as a functional monomer, and ethylene glycol dimethacrylate as a cross-linker. The resulting material was characterized and applied as a sorbent for the selective enrichment of glyphosate, aminomethylphosphonic acid, and glufosinate by magnetic solid-phase extraction (MSPE) prior to high-performance liquid chromatography. MIH-MIP possessed a high adsorption capacity in the range of 2.31-5.40 mg g-1 with good imprinting factors ranging from 1.52 to 7.59. The Langmuir model proved that the recognition sites were distributed as a monolayer on the surface of MIH-MIP. Scatchard analysis showed two types of binding sites on MIH-MIP. The kinetic characteristics of MIH-MIP suggested that the binding process of all analytes fit well with the pseudosecond-order model. The developed methodology provides good linearity in the range of 72.0-2000.0 μg L-1. Low detection limits of 21.0-22.5 μg L-1 and enrichment factors of up to 18 were achieved. The precision in terms of relative standard deviations of the intra- and interday experiments was better than 7 and 9%, respectively. The applicability of the developed MSPE facilitates the accurate and efficient determination of water, soil, and vegetable samples with satisfactory recoveries in the range of 86-118%. The results confirmed the suitability of the MIH-MIP sorbent for selective extraction and quantification of glyphosate, aminomethylphosphonic acid, and glufosinate.
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Li X, Li Y, Yu P, Tong Y, Ye BC. A high sensitivity electrochemical sensor based on a dual-template molecularly imprinted polymer for simultaneous determination of clenbuterol hydrochloride and ractopamine. Analyst 2021; 146:6323-6332. [PMID: 34554156 DOI: 10.1039/d1an01413g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nitrogen-doped Fe-MOF shows a high specific surface area and excellent electrical conductivity after high temperature carbonization. A novel electrochemical sensor based on a N@Fe-MOF@C loaded dual-template molecularly imprinted polymer (DTMIP) modified glassy carbon electrode (GCE) was proposed for the rapid and ultra-sensitive simultaneous detection of clenbuterol hydrochloride (CLB) and ractopamine (RAC). N@Fe-MOF@C combined with a MIP significantly enhanced the electrical signal. Cyclic voltammetry (CV) was used to detect CLB and RAC. The electrochemical polymerization was conducted with O-phenylenediamine as the functional monomer and CLB and RAC as template molecules. The factors affecting the sensor response were optimized. Under the optimal experimental conditions, the CV current response showed a linear range of 10-12-8 × 10-9 M for both CLB and RAC, and the detection limit (LOD) for both CLB and RAC was 3.03 × 10-13 M (S/N = 3). This electrochemical sensing system has high sensitivity, selectivity, excellent reproducibility, repeatability and stability. The recoveries of the actual samples (97.4%-101.2%) and reasonable relative standard deviations (RSDs) (1.06%-3.17%) indicate the practicability of the sensor system. The system has high application value in the rapid detection of CLB and RAC in clenbuterol hydrochloride tablets, human urine and raw pork.
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Affiliation(s)
- Xiang Li
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China.
| | - Yangguang Li
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China.
| | - Pai Yu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China.
| | - Yanbin Tong
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China.
| | - Bang-Ce Ye
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China. .,Institute of Engineering Biology and Health, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
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Dummy Molecularly Imprinted Polymers Using DNP as a Template Molecule for Explosive Sensing and Nitroaromatic Compound Discrimination. CHEMOSENSORS 2021. [DOI: 10.3390/chemosensors9090255] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This work reports a rapid, simple and low-cost voltammetric sensor based on a dummy molecularly imprinted polymer (MIP) that uses 2,4-dinitrophenol (DNP) as a template for the quantification of 2,4,6-trinitrotoluene (TNT) and DNP, and the identification of related substances. Once the polymer was synthesised by thermal precipitation polymerisation, it was integrated onto a graphite epoxy composite (GEC) electrode via sol–gel immobilisation. Scanning electron microscopy (SEM) was performed in order to characterise the polymer and the sensor surface. Responses towards DNP and TNT were evaluated, displaying a linear response range of 1.5 to 8.0 µmol L−1 for DNP and 1.3 to 6.5 µmol L−1 for TNT; the estimated limits of detection were 0.59 µmol L−1 and 0.29 µmol L−1, for DNP and TNT, respectively. Chemometric tools, in particular principal component analysis (PCA), demonstrated the possibilities of the MIP-modified electrodes in nitroaromatic and potential interfering species discrimination with multiple potential applications in the environmental field.
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Chen S, Luo L, Wang L, Chen C, Gong H, Cai C. A sandwich sensor based on imprinted polymers and aptamers for highly specific double recognition of viruses. Analyst 2021; 146:3924-3932. [PMID: 33982684 DOI: 10.1039/d1an00155h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Highly selective and highly efficient identification of large viruses has been a major obstacle in the field of virus detection. In this work, a novel sandwich resonance light scattering sensor was designed based on molecularly imprinted polymers (MIPs) and aptamers for the first time. One of the recognition probes was obtained by molecular imprinting using environmentally friendly carbon spheres as carriers and the other by modification of the aptamer that can specifically recognize hepatitis B virus (HBV) on the surface of silicon spheres. In the presence of both probes, an MIP-HBV-aptamer sandwich structure was formed continuously in the system with the increase in HBV concentration, resulting in a strong resonance light scattering response. Finally, satisfactory selectivity and sensitivity were obtained, and the imprinting factor was as high as 7.56, which was higher than that reported in previous works of viral molecular imprinting sensor. In addition, it is of great significance to solve the problem of insufficient selectivity of traditional detection methods for macromolecular targets.
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Affiliation(s)
- Siyu Chen
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University, Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Lianghui Luo
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University, Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Lingyun Wang
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University, Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China and School of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China.
| | - Chunyan Chen
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University, Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Hang Gong
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University, Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Changqun Cai
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University, Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
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Liu Y, Luo X, Wang M, Xia Z, Huang Y. Microorganisms as Bio-SPE Materials for Extraction of Pharmaceutical Drugs: Mechanism of Extraction. Anal Chem 2021; 93:7665-7672. [PMID: 34004111 DOI: 10.1021/acs.analchem.1c00521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In solid-phase extraction (SPE), the extraction materials depend on the physicochemical interactions to obtain the target analytes from complex systems. However, many matrix interferences existing in real samples influence the extraction efficiency through these common interactions. Therefore, extraction materials based on more special interactions for biological systems need to be developed. In this work, live microorganisms including Escherichia coli and Staphylococcus aureus were considered as the potential biological SPE (bio-SPE) materials with their biological functions in the live state. To study the enrichment and selectivity of the bio-SPE, four antibacterial drugs and two non-antibacterial drugs were employed as the target analytes. The enrichment factor (EF) was used as the evaluation index. The results showed that when using chlorpheniramine (CPM) and ofloxacin (OFLO), the enrichment capacity of E. coli was better than that of S. aureus. When extracting a single analyte, the enrichment ability of E. coli for CPM was significantly higher than other analytes, and the EF was 8.5. In a mixture solution of antibacterial analytes, OFLO could be enriched mostly by E. coli. However, in the mixture solution of antibacterial and non-antibacterial analytes, CPM was enriched more than that of antibacterial analytes. In real rat plasma, bio-SPE using live E. coli could obviously extract CPM, while traditional liquid-liquid extraction could not. The confocal microscopy results showed that the extraction mechanism may not only depend on the surface adsorption of bacteria with analytes but also on the uptake into bacteria. This provides a valuable basis for the development of more biological separation materials based on biological interactions.
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Affiliation(s)
- Yi Liu
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, P. R. China.,School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Xinxin Luo
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Min Wang
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Zhining Xia
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Yike Huang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, P. R. China
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Arabi M, Ostovan A, Bagheri AR, Guo X, Li J, Ma J, Chen L. Hydrophilic molecularly imprinted nanospheres for the extraction of rhodamine B followed by HPLC analysis: A green approach and hazardous waste elimination. Talanta 2020; 215:120933. [DOI: 10.1016/j.talanta.2020.120933] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/07/2020] [Accepted: 03/12/2020] [Indexed: 10/24/2022]
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Li H, Ren C, Meng J, Gao Y, Ren T, Li Y, Qiao Y, Liu C, Che G. Multifunction Sandwich Composite SERS Imprinted Sensor Based on ZnO/GO/Ag for Selective Detection of Cyfluthrin in River. ChemistrySelect 2020. [DOI: 10.1002/slct.202001155] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hongji Li
- Key Laboratory of Preparation and Applications of Environmental Friendly MaterialsJilin Normal University), Ministry of Education Changchun 130103 P.R. China
- College of Environmental Science and EngineeringJilin Normal University Siping 136000 China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of EducationJilin Normal University Changchun 130103 P.R. China
| | - Chuqi Ren
- College of Environmental Science and EngineeringJilin Normal University Siping 136000 China
| | - Jingjing Meng
- School of Environment and PlanningLiaocheng University Liaocheng 252000 P.R. China
| | - Yan Gao
- College of Environmental Science and EngineeringJilin Normal University Siping 136000 China
| | - Tong Ren
- College of Environmental Science and EngineeringJilin Normal University Siping 136000 China
| | - Yue Li
- College of ChemistryJilin Normal University Siping 136000 P.R. China
| | - Yu Qiao
- Key Laboratory of Preparation and Applications of Environmental Friendly MaterialsJilin Normal University), Ministry of Education Changchun 130103 P.R. China
- College of ChemistryJilin Normal University Siping 136000 P.R. China
| | - Chunbo Liu
- Key Laboratory of Preparation and Applications of Environmental Friendly MaterialsJilin Normal University), Ministry of Education Changchun 130103 P.R. China
- College of Environmental Science and EngineeringJilin Normal University Siping 136000 China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of EducationJilin Normal University Changchun 130103 P.R. China
| | - Guangbo Che
- Key Laboratory of Preparation and Applications of Environmental Friendly MaterialsJilin Normal University), Ministry of Education Changchun 130103 P.R. China
- College of Environmental Science and EngineeringJilin Normal University Siping 136000 China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of EducationJilin Normal University Changchun 130103 P.R. China
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Zhao X, Pei W, Guo R, Li X. Selective Adsorption and Purification of the Acteoside in Cistanche tubulosa by Molecularly Imprinted Polymers. Front Chem 2020; 7:903. [PMID: 32039143 PMCID: PMC6989468 DOI: 10.3389/fchem.2019.00903] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 12/13/2019] [Indexed: 12/02/2022] Open
Abstract
Acteoside (ACT) is the main component of phenylethanoid glycosides in Cistanche tubulosa, and it is extremely desirable for obtaining high purification of ACT by molecularly imprinted polymers (MIPs) from their extracts. In this study, MIPs were designed and synthetized to adsorb selectively the ACT in C. tubulosa. The effects of different functional monomers, cross-linkers, and solvents of MIPs were investigated. MIPs were studied in terms of static adsorption experiments, dynamic adsorption experiments, and selectivity experiments. The optimal functional monomer, cross-linking agent, and solvent are 4-vinylpyridine, ethylene glycol dimethylacrylate, and the mixed solvent (acetonitrile and N,N-dimethylformamide, 1:1.5, v/v), respectively. Under the optimal conditions, the synthesized MIP1 has a high adsorption performance for ACT. The adsorption capacity of MIP1 to ACT reached 112.60 mg/g, and the separation factor of ACT/echinacoside was 4.68. Because the molecularly imprinted cavities of MIP1 resulted from template molecules of ACT, it enables MIP1 to recognize selectively ACT. Moreover, the N–H groups on MIP1 can form hydrogen bonds with the hydroxyl groups on the ACT; this improves the separation factor of MIP1. The dynamic adsorption of ACT accorded with the quasi-second-order kinetics; it indicated that the adsorption process of MIP1 is the process of chemical adsorption to ACT. MIPs can be applied as a potential adsorption material to purify the active ingredients of herbal medicines.
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Affiliation(s)
- Xiaobin Zhao
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China
| | - Wenjing Pei
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China
| | - Ruili Guo
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China
| | - Xueqin Li
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi, China
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