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Hou YJ, Luo YQ, Li Q, Zhang H, Njolibimi M, Li WJ, Hong B, Zhao CJ. A new multi-template molecularly imprinted polymer for separation and purification of dioscin, protodioscin, and diosgenin from purple yam. Food Chem 2024; 442:138434. [PMID: 38241987 DOI: 10.1016/j.foodchem.2024.138434] [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: 10/06/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/21/2024]
Abstract
Saponin is an essential natural compound in purple yams with high nutritional and medicinal value. In this work, a multitemplate molecule-imprinted polymer (MMIP) was synthesized with dioscin, protodioscin, and diosgenin templates. The MMIPs were characterized with scanning electron microscopy, thermogravimetric analysis, Brunauer-Emmett-Teller (BET) adsorption, and Fourier transform infrared spectroscopy. The efficacy of the MMIPs was assessed with static, dynamic, selective adsorption, desorption, and reusability experiments. The three saponins were selectively extracted and determined by MMIP-high-performance liquid chromatography. The polymer morphology was regular and spherical. The amount of the MMIP adsorbed was 74.825 mg/g, and the imprinting factor was 2.1. The MMIP adsorbed the three saponins from purple yam extract, with recovery rates of 95.5-103.43 % and desorption rates of 85 %-98 %. In addition, the MMIPs were reused at least six times. These results demonstrated that the MMIPs efficiently and selectively extracted dioscin, protodioscin, and diosgenin from food matrices at high rates.
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Affiliation(s)
- Yu-Jiao Hou
- School of Pharmacy, Qiqihar Medical University, Qiqihar 161003, China
| | - Yan-Qiong Luo
- School of Pharmacy, Qiqihar Medical University, Qiqihar 161003, China
| | - Qian Li
- School of Pharmacy, Qiqihar Medical University, Qiqihar 161003, China
| | - Han Zhang
- School of Pharmacy, Qiqihar Medical University, Qiqihar 161003, China
| | | | - Wen-Jing Li
- School of Pharmacy, Qiqihar Medical University, Qiqihar 161003, China.
| | - Bo Hong
- School of Pharmacy, Qiqihar Medical University, Qiqihar 161003, China.
| | - Chun-Jie Zhao
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China.
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2
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Sha O, Wu Y, Dai X, Li H, Xu Y, Wang Z, Zhang P. Reusable magnetic molecular imprinted polymers based on magnetic graphene oxide for selective identification and detection of eugenol in environmental water samples. ANAL SCI 2024:10.1007/s44211-024-00601-y. [PMID: 38795278 DOI: 10.1007/s44211-024-00601-y] [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: 03/20/2024] [Accepted: 05/13/2024] [Indexed: 05/27/2024]
Abstract
In this study, a reliable method for determining eugenol content in environmental water samples was established by combining magnetic solid-phase extraction with high-performance liquid chromatography. Magnetic molecular imprinted polymers MGO@MIPs were prepared through surface molecular imprinting technique with eugenol as the template molecule. The material displayed good superparamagnetic properties and magnetic responsiveness in favor of rapid separation. The adsorption properties of MGO@MIPs for eugenol were evaluated through adsorption kinetics and selectivity experiments. MGO@MIPs were found to have favorable reusability and obvious selectivity for eugenol. In addition, adsorption and elution conditions were investigated. Under optimal conditions, a linear relationship was obtained between the concentration of eugenol and its peak area in the range of 0.02-5 mg/L (R2 = 0.9998) and the limit of detection was 4.0 × 10-6 mg/mL. The performance of the established method was assessed with the average recovery of 96.59-102.20% and the relative standard deviation (RSD) below 3.5%. The application of this method provides a new perspective for the separation, enrichment and detection of eugenol in water environment.
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Affiliation(s)
- Ou Sha
- Department of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, 222005, People's Republic of China.
| | - Yunfan Wu
- Department of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, 222005, People's Republic of China
| | - Xincheng Dai
- Department of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, People's Republic of China
| | - Huiwen Li
- Department of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, People's Republic of China
| | - Yuan Xu
- Department of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, 222005, People's Republic of China
| | - Ziwen Wang
- Department of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, 222005, People's Republic of China
| | - Pu Zhang
- Department of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, 222005, People's Republic of China
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3
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Cavalera S, Anfossi L, Di Nardo F, Baggiani C. Mycotoxins-Imprinted Polymers: A State-of-the-Art Review. Toxins (Basel) 2024; 16:47. [PMID: 38251263 PMCID: PMC10818578 DOI: 10.3390/toxins16010047] [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: 11/25/2023] [Revised: 01/02/2024] [Accepted: 01/13/2024] [Indexed: 01/23/2024] Open
Abstract
Mycotoxins are toxic metabolites of molds which can contaminate food and beverages. Because of their acute and chronic toxicity, they can have harmful effects when ingested or inhaled, posing severe risks to human health. Contemporary analytical methods have the sensitivity required for contamination detection and quantification, but the direct application of these methods on real samples is not straightforward because of matrix complexity, and clean-up and preconcentration steps are needed, more and more requiring the application of highly selective solid-phase extraction materials. Molecularly imprinted polymers (MIPs) are artificial receptors mimicking the natural antibodies that are increasingly being used as a solid phase in extraction methods where selectivity towards target analytes is mandatory. In this review, the state-of-the-art about molecularly imprinted polymers as solid-phase extraction materials in mycotoxin contamination analysis will be discussed, with particular attention paid to the use of mimic molecules in the synthesis of mycotoxin-imprinted materials, to the application of these materials to food real samples, and to the development of advanced extraction methods involving molecular imprinting technology.
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Affiliation(s)
| | | | | | - Claudio Baggiani
- Laboratory of Bioanalytical Chemistry, Department of Chemistry, University of Torino, 10125 Torino, Italy; (S.C.); (L.A.); (F.D.N.)
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Cavaliere C, Cerrato A, Laganà A, Montone CM, Piovesana S, Taglioni E, Capriotti AL. Dispersive solid phase extraction using a hydrophilic molecularly imprinted polymer for the selective extraction of patulin in apple juice samples. Mikrochim Acta 2023; 190:485. [PMID: 38006439 PMCID: PMC10676307 DOI: 10.1007/s00604-023-06056-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 10/17/2023] [Indexed: 11/27/2023]
Abstract
A molecularly imprinted polymer with a specific selectivity for patulin was successfully synthesized. The molecularly imprinted material was prepared using the two functional monomers dopamine and melamine and formaldehyde as the cross-linker. The resulting material possessed a large number of hydrophilic groups, such as hydroxyls, imino groups, and ether linkages. For the first time, uric acid was used as a dummy template for its structural similarity to patulin. Comprehensive characterization and detailed studies of the adsorption process were carried out via adsorption isotherms, while the rate-limiting steps were investigated using adsorption kinetics. Separation, determination, and quantification of patulin were achieved by ultra-high performance liquid chromatography coupled with both photodiode array detection and tandem mass spectrometry. The latter was applied to patulin confirmation in the analysis of real samples. The methodology was validated in 20 apple juice samples. The results showed that the developed hydrophilic molecularly imprinted polymer had high selectivity and specific adsorption towards patulin, with mean recoveries ranging between 85 and 90% and a relative standard deviation lower than 15%. The developed molecularly imprinted polymer exhibited good linearity in the range 1-100 ng mL-1 with coefficient of determination (R2) > 0.99. The limit of detection was 0.5 ng mL-1, and the limit of quantification was 1 ng g-1. The developed method showed a good purification capacity for apple juices due to its hydrophilic nature and the polar interactions established with the target analyte.
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Affiliation(s)
- Chiara Cavaliere
- Dipartimento di Chimica, Università di Roma La Sapienza, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Andrea Cerrato
- Dipartimento di Chimica, Università di Roma La Sapienza, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Aldo Laganà
- Dipartimento di Chimica, Università di Roma La Sapienza, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Carmela Maria Montone
- Dipartimento di Chimica, Università di Roma La Sapienza, Piazzale Aldo Moro 5, 00185, Rome, Italy.
| | - Susy Piovesana
- Dipartimento di Chimica, Università di Roma La Sapienza, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Enrico Taglioni
- Dipartimento di Chimica, Università di Roma La Sapienza, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Anna Laura Capriotti
- Dipartimento di Chimica, Università di Roma La Sapienza, Piazzale Aldo Moro 5, 00185, Rome, Italy
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5
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Leng Q, Han S, Zhai M, Liu S, Song Y. A molecularly imprinted photopolymer based on mesh TpPa-2 embedded with perovskite CsPbBr 3 quantum dots for the sensitive solid fluorescence sensing of patulin in apple products. Food Chem 2023; 416:135855. [PMID: 36898336 DOI: 10.1016/j.foodchem.2023.135855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 12/17/2022] [Accepted: 03/01/2023] [Indexed: 03/08/2023]
Abstract
Here, a novel molecularly imprinted photopolymer was prepared using CsPbBr3 quantum dots as the fluorescence source, TpPa-2 as substrate for selective solid fluorescence detection of patulin (PAT). TpPa-2 can promote efficient recognition of PAT due to its unique structure and significantly improve the fluorescence stability and sensitivity. The test results showed that the photopolymer exhibited large adsorption capacity (131.75 mg/g), fast adsorption ability (12 mins), superior reusability and high selectivity. The sensor proposed had good linearity for PAT in the range of 0.2-20 ng/mL and was applied to the analysis of PAT in apple juice and apple jam with a limit of detection as low as 0.027 ng/mL. Therefore it maybe a promising method for solid fluorescence detection of trace PAT in food analysis.
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Affiliation(s)
- Qiuxue Leng
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Shuang Han
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China; Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals, Qiqihar University, Qiqihar 161006, China.
| | - Minghui Zhai
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Shiwei Liu
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
| | - Yuzhuo Song
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China
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Chi H, Liu G. Carbon nanomaterial-based molecularly imprinted polymer sensors for detection of hazardous substances in food: recent progress and future trends. Food Chem 2023; 420:136100. [PMID: 37062085 DOI: 10.1016/j.foodchem.2023.136100] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 03/22/2023] [Accepted: 03/31/2023] [Indexed: 04/03/2023]
Abstract
The presence of various harmful substances in food is significantly risky to human health. Therefore, simple, rapid, and selective food hazard analysis tools have become a focus of sensing research. At present, molecularly imprinted polymers (MIPs) have attracted more and more attention because of their easy preparation and high selectivity. Due to their simple preparation, low cost, large specific surface area, and high conductivity, carbon nanomaterial can be used as sensing substrate carriers. Therefore, the combination of carbon nanomaterial with MIPs has attracted great attention. This paper summarizes the development, composition, and preparation methods of MIPs, as well as the latest research progress in carbon nanomaterials for the detection of various food hazards using sensors. In addition, the practical applications of carbon nanomaterial-based MIP sensors, their current challenges and future trends, and the ongoing efforts devoted to developing new and efficient carbon nanomaterial-based MIP sensing platforms are also introduced.
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Affiliation(s)
- Hai Chi
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Guoqin Liu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, China.
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7
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Vitek R, Masini JC. Nonlinear regression for treating adsorption isotherm data to characterize new sorbents: Advantages over linearization demonstrated with simulated and experimental data. Heliyon 2023; 9:e15128. [PMID: 37082625 PMCID: PMC10112023 DOI: 10.1016/j.heliyon.2023.e15128] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
This paper demonstrates that determining adsorption capacity and affinity through data fitting of adsorption isotherms by nonlinear regression (NLR) is more accurate than linearized Langmuir equations. Linearization errors and the subjective choice of data points used to apply the linear regression analysis may deviate the fitted adsorption parameters (constants and adsorption capacities) from the expected values. The deviation magnitude increases for heterogeneous sorbents such as environmental particles and molecularly imprinted polymers, which adsorb by more than one sorption mechanism or adsorption sites of diverse chemical natures. For instance, Lineweaver-Burk linearization of isotherms simulated considering the presence of two adsorption sites (distinct adsorption energies) provides excellent linear regression fittings but for only one kind of adsorption site. Contrary, Scatchard and Eadie-Hoffsiee's equations indicate the presence of more than one kind of adsorption site, but if the difference between the adsorption constants is not significant, the choice of points used to perform the computation becomes subjective. On the contrary, NLR analysis considers all the adsorption points (experimental or simulated), providing objective criteria to define if more than one kind of site or retention mechanism rules the adsorbed amounts of analyte. The fitted constants have smaller deviations from the expected values than those obtained by linearization. In addition to the simulated data, the enhanced robustness of the NLR was demonstrated in the determination of the adsorption capacity and adsorption affinity of a humic acid sample towards Cu2+ at different pH.
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Affiliation(s)
- Renan Vitek
- Instituto Federal de Educação Ciência e Tecnologia de Mato Grosso, Cuiabá, Brazil
| | - Jorge C. Masini
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Pestes 748, 05508-000 São Paulo, SP, Brazil
- Corresponding author.
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8
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Bacha SAS, Li Y, Nie J, Xu G, Han L, Farooq S. Comprehensive review on patulin and Alternaria toxins in fruit and derived products. FRONTIERS IN PLANT SCIENCE 2023; 14:1139757. [PMID: 37077634 PMCID: PMC10108681 DOI: 10.3389/fpls.2023.1139757] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/17/2023] [Indexed: 05/03/2023]
Abstract
Mycotoxins are toxic secondary metabolites produced by certain fungi, which can contaminate various food commodities, including fruits and their derived products. Patulin and Alternaria toxins are among the most commonly encountered mycotoxins in fruit and their derived products. In this review, the sources, toxicity, and regulations related to these mycotoxins, as well as their detection and mitigation strategies are widely discussed. Patulin is a mycotoxin produced mainly by the fungal genera Penicillium, Aspergillus, and Byssochlamys. Alternaria toxins, produced by fungi in the Alternaria genus, are another common group of mycotoxins found in fruits and fruit products. The most prevalent Alternaria toxins are alternariol (AOH) and alternariol monomethyl ether (AME). These mycotoxins are of concern due to their potential negative effects on human health. Ingesting fruits contaminated with these mycotoxins can cause acute and chronic health problems. Detection of patulin and Alternaria toxins in fruit and their derived products can be challenging due to their low concentrations and the complexity of the food matrices. Common analytical methods, good agricultural practices, and contamination monitoring of these mycotoxins are important for safe consumption of fruits and derived products. And Future research will continue to explore new methods for detecting and managing these mycotoxins, with the ultimate goal of ensuring the safety and quality of fruits and derived product supply.
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Affiliation(s)
- Syed Asim Shah Bacha
- Laboratory of Quality & Safety Risk Assessment for Fruit, Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
| | - Yinping Li
- Laboratory of Quality & Safety Risk Assessment for Fruit, Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
- *Correspondence: Jiyun Nie, ; Yinping Li,
| | - Jiyun Nie
- College of Horticulture, Qingdao Agricultural University/Laboratory of Quality & Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs/National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao)/Qingdao Key Lab of Modern Agriculture Quality and Safety Engineering, Qingdao, China
- *Correspondence: Jiyun Nie, ; Yinping Li,
| | - Guofeng Xu
- Laboratory of Quality & Safety Risk Assessment for Fruit, Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
| | - Lingxi Han
- College of Horticulture, Qingdao Agricultural University/Laboratory of Quality & Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs/National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products (Qingdao)/Qingdao Key Lab of Modern Agriculture Quality and Safety Engineering, Qingdao, China
| | - Saqib Farooq
- Laboratory of Quality & Safety Risk Assessment for Fruit, Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning, China
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Magnetic dual-template molecularly imprinted polymers for separation and enrichment of echinacoside and acteoside from Cistanche deserticola Y. C. Ma. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.04.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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10
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Nan M, Xue H, Bi Y. Contamination, Detection and Control of Mycotoxins in Fruits and Vegetables. Toxins (Basel) 2022; 14:toxins14050309. [PMID: 35622556 PMCID: PMC9143439 DOI: 10.3390/toxins14050309] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/18/2022] [Accepted: 04/24/2022] [Indexed: 01/09/2023] Open
Abstract
Mycotoxins are secondary metabolites produced by pathogenic fungi that colonize fruits and vegetables either during harvesting or during storage. Mycotoxin contamination in fruits and vegetables has been a major problem worldwide, which poses a serious threat to human and animal health through the food chain. This review systematically describes the major mycotoxigenic fungi and the produced mycotoxins in fruits and vegetables, analyzes recent mycotoxin detection technologies including chromatography coupled with detector (i.e., mass, ultraviolet, fluorescence, etc.) technology, electrochemical biosensors technology and immunological techniques, as well as summarizes the degradation and detoxification technologies of mycotoxins in fruits and vegetables, including physical, chemical and biological methods. The future prospect is also proposed to provide an overview and suggestions for future mycotoxin research directions.
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Affiliation(s)
- Mina Nan
- College of Science, Gansu Agricultural University, Lanzhou 730070, China;
- Basic Experiment Teaching Center, Gansu Agricultural University, Lanzhou 730070, China
| | - Huali Xue
- College of Science, Gansu Agricultural University, Lanzhou 730070, China;
- Correspondence: (H.X.); (Y.B.); Tel.: +86-931-763-1212 (H.X.); +86-931-763-1113 (Y.B.)
| | - Yang Bi
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
- Correspondence: (H.X.); (Y.B.); Tel.: +86-931-763-1212 (H.X.); +86-931-763-1113 (Y.B.)
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11
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Zhao X, Deng Y, Xue X, Liao L, Zhou M, Peng C, Li Y. Research Progress of Quercetin Delivery Systems. Curr Pharm Des 2022; 28:727-742. [PMID: 35301946 DOI: 10.2174/1381612828666220317141923] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 01/17/2022] [Indexed: 11/22/2022]
Abstract
Quercetin is the main dietary flavonoid with a wide range of pharmacological activities. However, the poor gastrointestinal absorption and low bioavailability of quercetin curtails its clinical applications.. Enhancement the bioavailability of quercetin focuses on the application of delivery systems technologies such as microparticle delivery systems, solid dispersions, encapsulation, phospholipid complexes, and hydrogels , which have been systematically reviewed .And theirapplications in vitro and in vivo animal experiments also been described, promoting the development and optimization of drug delivery system for clinical applications.
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Affiliation(s)
- Xingtao Zhao
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
- National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources
| | - Ying Deng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
- National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources
| | - Xinyan Xue
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
- National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources
| | - Li Liao
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
- National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources
| | - Mengting Zhou
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
- National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources
| | - Cheng Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
- National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources
| | - Yunxia Li
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, Chengdu 611137, China
- National Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources
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12
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Li P, Du Y, Ma M, Zhang J. Nitrogen-doped graphene quantum dots coated with molecularly imprinted polymers as a fluorescent sensor for selective determination of warfarin. NEW J CHEM 2022. [DOI: 10.1039/d2nj00853j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The strong photoluminescence of NGQDs and the selectivity of MIPs were combined to construct a fluorescent sensor for rapid determination of warfarin.
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Affiliation(s)
- Peipei Li
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), China Pharmaceutical University, Nanjing 210009, P. R. China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Yingxiang Du
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), China Pharmaceutical University, Nanjing 210009, P. R. China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Mingxuan Ma
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), China Pharmaceutical University, Nanjing 210009, P. R. China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
| | - Jian Zhang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education), China Pharmaceutical University, Nanjing 210009, P. R. China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, P. R. China
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13
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Ilktaç R, Gümüş ZP. Sensitive and selective determination of imidacloprid with magnetic molecularly imprinted polymer by using LC/Q-TOF/MS. Turk J Chem 2021; 45:1237-1247. [PMID: 34707447 PMCID: PMC8517610 DOI: 10.3906/kim-2101-36] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/19/2021] [Indexed: 12/19/2022] Open
Abstract
In this paper, magnetic-molecularly imprinted polymer was used for the preconcentration of trace levels of imidacloprid in water and apple samples prior to liquid chromatography-quadrupole-time-of-flight mass spectrometric determination. The selectivity of the magnetic polymer was united with the sensitivity and the high resolving power of the chromatographic system. The developed method showed a linear range from 10.0 to 500.0 µg/L. The quantitative recoveries were obtained for water and apple samples in the range of 92.0%–99.0 %. The relative standard deviations of intra-day and inter-day tests were found to be in the range of 0.8%–1.2% and 1.2%–1.6 %, respectively. In addition, the same magnetic-molecularly imprinted polymer (MMIP) can be used at least ten cycles for the determination of imidacloprid. The preconcentration factor of the method was found to be 2.5, and the total preconcentration procedure can be completed in 1 h. Characterization of synthesised particles were executed with various techniques. Due to its suitable limit of detection, dynamic linear range, sensitivity and selectivity, the developed method seemed to be ideal for the determination and preconcentration of imidacloprid in water and fruit samples.
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Affiliation(s)
- Raif Ilktaç
- Central Research Testing and Analysis Laboratory Research and Application Center, Ege University Bornova, İzmir Turkey
| | - Zinar Pınar Gümüş
- Central Research Testing and Analysis Laboratory Research and Application Center, Ege University Bornova, İzmir Turkey
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14
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Zhao X, Lü L, Zhu M, Liu H, He J, Zheng F. Development of hydrophilic magnetic molecularly imprinted polymers for the dispersive solid-phase extraction of sulfonamides from animal-derived samples before HPLC detection. J Sep Sci 2021; 44:2399-2407. [PMID: 33856741 DOI: 10.1002/jssc.202001244] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/10/2021] [Accepted: 04/12/2021] [Indexed: 01/12/2023]
Abstract
Highly hydrophilic magnetic molecularly imprinted polymers were prepared through a surface imprinting technique for dispersive solid-phase extraction coupled with high-performance liquid chromatography to detect trace levels of ten sulfonamides in animal-derived samples. The obtained imprinted polymers were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, and adsorption experiments, which exhibited excellent specific adsorption for template sulfamethazine in aqueous solution. Moreover, the adsorption process could be completed within 25 min. Under the optimum conditions, the method exhibits good linear performance in the range of 5-to 10 mg/L, limits of detection ranging from 0.57 to 1.50 μg/L, and good recoveries of 85.09-110.93% in the spiked samples (chicken, cow milk, and goat milk). The proposed detection method not only avoids the use of organic solvents but also simplifies the pretreatment procedure via excellent magnetic properties. Furthermore, the method shows great potential for the rapid detection of drug residues.
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Affiliation(s)
- Xiaolei Zhao
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P.R. China
| | - Lei Lü
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P.R. China
| | - Mengzhen Zhu
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P.R. China
| | - Huilin Liu
- School of Light Industry, Beijing Technology and Business University, Beijing, P.R. China
| | - Jinxing He
- School of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, P.R. China.,State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, P.R. China
| | - Fuping Zheng
- School of Light Industry, Beijing Technology and Business University, Beijing, P.R. China
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15
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Janczura M, Luliński P, Sobiech M. Imprinting Technology for Effective Sorbent Fabrication: Current State-of-Art and Future Prospects. MATERIALS 2021; 14:ma14081850. [PMID: 33917896 PMCID: PMC8068262 DOI: 10.3390/ma14081850] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/03/2021] [Accepted: 04/06/2021] [Indexed: 12/14/2022]
Abstract
In the last 10 years, we have witnessed an extensive development of instrumental techniques in analytical methods for determination of various molecules and ions at very low concentrations. Nevertheless, the presence of interfering components of complex samples hampered the applicability of new analytical strategies. Thus, additional sample pre-treatment steps were proposed to overcome the problem. Solid sorbents were used for clean-up samples but insufficient selectivity of commercial materials limited their utility. Here, the application of molecularly imprinted polymers (MIPs) or ion-imprinted polymers (IIPs) in the separation processes have recently attracted attention due to their many advantages, such as high selectivity, robustness, and low costs of the fabrication process. Bulk or monoliths, microspheres and core-shell materials, magnetically susceptible and stir-bar imprinted materials are applicable to different modes of solid-phase extraction to determine target analytes and ions in a very complex environment such as blood, urine, soil, or food. The capability to perform a specific separation of enantiomers is a substantial advantage in clinical analysis. The ion-imprinted sorbents gained interest in trace analysis of pollutants in environmental samples. In this review, the current synthetic approaches for the preparation of MIPs and IIPs are comprehensively discussed together with a detailed characterization of respective materials. Furthermore, the use of sorbents in environmental, food, and biomedical analyses will be emphasized to point out current limits and highlight the future prospects for further development in the field.
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16
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Huang W, Jiang P, Yin X, Zhang L, Zhao S, Zhou H, Ni X, Xu W. Selective enrichment-release of trace dibutyl phthalate via molecular-imprinting based photo-controlled switching followed by high-performance liquid chromatography analysis. J Sep Sci 2020; 44:513-520. [PMID: 33185321 DOI: 10.1002/jssc.202000950] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/02/2020] [Accepted: 11/07/2020] [Indexed: 12/15/2022]
Abstract
A novel intelligent photo-controlled molecularly imprinted polymers were synthesized, based on the magnetic core-shell structure, with 4-[(4-methacryloyloxy) phenylazo] benzenesulfonic acid as the functional monomer and ethylene glycol dimethyl acrylate as the cross-linking agent. Subsequently, a series of light-controlled enrichment-release performance showed that it only took about 30 and 10 min to reach the equilibrium photosensitive characteristic peak, respectively. The photo-controlled polymers could intelligently select target molecules, the maximum adsorption capacity for dibutyl phthalate was 3.88 mg/g. However, the adsorption capacity for its structural analogue dicyclohexyl phthalate was only 0.88 mg/g. The Freundlich and Langmuir isothermal equations were discussed for the specific enrichment process. Finally, the photo-controlled molecularly imprinted polymers were successfully applied to the selective detection of dibutyl phthalate, with the recovery rate of 95.4-98.4%. It could be used for the analysis of trace dibutyl phthalate in actual samples.
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Affiliation(s)
- Weihong Huang
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, P. R. China
| | - Pengfei Jiang
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, P. R. China
| | - Xifeng Yin
- Zhenjiang Agricultural Products Quality Inspection and Testing Center, Zhenjiang, P. R. China
| | - Liming Zhang
- Zhenjiang Agricultural Products Quality Inspection and Testing Center, Zhenjiang, P. R. China
| | - Shan Zhao
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, P. R. China
| | - Hengdeng Zhou
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, P. R. China
| | - Xiaoni Ni
- Zhenjiang Food and Drug Supervision and Inspection Center, Zhenjiang, P. R. China
| | - Wanzhen Xu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, P. R. China
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17
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Fu H, Liu J, Xu W, Wang H, Liao S, Chen G. A new type of magnetic molecular imprinted material combined with β-cyclodextrin for the selective adsorption of zearalenone. J Mater Chem B 2020; 8:10966-10976. [DOI: 10.1039/d0tb02146f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this paper, a new magnetic molecular imprinted polymer–cyclodextrin (MMIP–CD) material was prepared by connecting β-cyclodextrin (CD) on the surface of a magnetic molecular imprinted polymer (MMIP) and used for the rapid and specific adsorption of zearalenone (ZEN).
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Affiliation(s)
- Han Fu
- College of Engineering
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Junping Liu
- College of Engineering
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Wu Xu
- College of Engineering
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Haixiang Wang
- College of Engineering
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Shenghua Liao
- School of Science
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Guitang Chen
- College of Engineering
- China Pharmaceutical University
- Nanjing
- P. R. China
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