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Kansakar U, Trimarco V, Manzi MV, Cervi E, Mone P, Santulli G. Exploring the Therapeutic Potential of Bromelain: Applications, Benefits, and Mechanisms. Nutrients 2024; 16:2060. [PMID: 38999808 PMCID: PMC11243481 DOI: 10.3390/nu16132060] [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: 04/11/2024] [Revised: 06/17/2024] [Accepted: 06/22/2024] [Indexed: 07/14/2024] Open
Abstract
Bromelain is a mixture of proteolytic enzymes primarily extracted from the fruit and stem of the pineapple plant (Ananas comosus). It has a long history of traditional medicinal use in various cultures, particularly in Central and South America, where pineapple is native. This systematic review will delve into the history, structure, chemical properties, and medical indications of bromelain. Bromelain was first isolated and described in the late 19th century by researchers in Europe, who identified its proteolytic properties. Since then, bromelain has gained recognition in both traditional and modern medicine for its potential therapeutic effects.
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Affiliation(s)
- Urna Kansakar
- Department of Medicine, Division of Cardiology, Wilf Family Cardiovascular Research Institute, Fleischer Institute for Diabetes and Metabolism (FIDAM), Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Valentina Trimarco
- Department of Neuroscience, Reproductive Sciences and Dentistry, Federico II University, 80131 Naples, Italy
| | - Maria V. Manzi
- Department of Advanced Biomedical Sciences, Federico II University Hospital, 80131 Naples, Italy
| | - Edoardo Cervi
- Vein Clinic, University of Brescia, 25100 Brescia, Italy
| | - Pasquale Mone
- Department of Medicine, Division of Cardiology, Wilf Family Cardiovascular Research Institute, Fleischer Institute for Diabetes and Metabolism (FIDAM), Albert Einstein College of Medicine, New York, NY 10461, USA
- Department of Medicine and Health Sciences “Vincenzo Tiberio”, University of Molise, 86100 Campobasso, Italy
- Casa di Cura “Montevergine”, 83013 Avellino, Italy
| | - Gaetano Santulli
- Department of Medicine, Division of Cardiology, Wilf Family Cardiovascular Research Institute, Fleischer Institute for Diabetes and Metabolism (FIDAM), Albert Einstein College of Medicine, New York, NY 10461, USA
- Department of Advanced Biomedical Sciences, Federico II University Hospital, 80131 Naples, Italy
- Department of Molecular Pharmacology, Einstein Institute for Aging Research, Einstein-Mount Sinai Diabetes Research Center (ES-DRC), Einstein Institute for Neuroimmunology and Inflammation (INI), Albert Einstein College of Medicine, New York, NY 10461, USA
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Zhou F, Deng H, Emiezi Agarry I, Hu J, Xu D, Feng H, Kan J, Cai T, Chen K. Determination of multiple mycotoxins in chili powder using cold-induced liquid-liquid extraction and Fe 3O 4@MWCNTs-NH 2 coupled with UPLC-Q-TOF/MS. Food Chem 2023; 423:136291. [PMID: 37178595 DOI: 10.1016/j.foodchem.2023.136291] [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: 11/30/2022] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023]
Abstract
Food matrix interference is still a big challenge in analyzing multiclass mycotoxins. Herein, a novel cold-induced liquid-liquid extraction-magnetic solid phase extraction (CI-LLE-MSPE) coupled with ultra-high performance liquid chromatography-quadrupole time of flight mass spectrometry (UPLC-Q-TOF/MS) method was explored for the simultaneous determination of multiple mycotoxins in chili powders. Fe3O4@MWCNTs-NH2 nanomaterials were prepared and characterized, and the factors affecting the MSPE process were investigated. Based on this, the CI-LLE-MSPE-UPLC-Q-TOF/MS method was established for determining ten mycotoxins in chili powders. The proffered technique eliminated the matrix interference effectively and demonstrated strong linearity (0.5-500 µg/kg, R2 ≥ 0.999), high sensitivity (limit of quantification was 0.5-1.5 µg/kg), and the recovery was 70.6%-111.7%. The extraction process is simpler than conventional methods, as the adsorbent can be separated using magnets, and reusable adsorbents are beneficial in reducing costs. In addition, the method can provide a valuable reference for pretreatment procedures for other complex matrices.
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Affiliation(s)
- Fenglan Zhou
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, PR China; Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, PR China
| | - Huiling Deng
- Chongqing Academy of Science and Technology, Building B, No. 2, Yangliu Road, North New Area, Chongqing 401121, PR China
| | - Israel Emiezi Agarry
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, PR China; Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, PR China
| | - Jiang Hu
- Chongqing Academy of Science and Technology, Building B, No. 2, Yangliu Road, North New Area, Chongqing 401121, PR China
| | - Donghui Xu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, No.12 Zhongguancun South St., Haidian District, Beijing 100081, PR China
| | - Hui Feng
- Shandong Huge Grand Testing Technology Co., Ltd., No.1003 Gangxing Sanlu, Licheng Dist, Jinan 250000, Shandong, PR China
| | - Jianquan Kan
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, PR China; Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, PR China
| | - Tian Cai
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, PR China.
| | - Kewei Chen
- College of Food Science, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing 400715, PR China; Chongqing Key Laboratory of Specialty Food Co-built by Sichuan and Chongqing, Chongqing 400715, PR China.
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Fang S, Huang W, Wu J, Han J, Wang L, Wang Y. Separation and Purification of Recombinant β-Glucosidase with Hydrophobicity and Thermally Responsive Property from Cell Lysis Solution by Foam Separation and Further Purification. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:3362-3372. [PMID: 36749912 DOI: 10.1021/acs.jafc.2c07405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The aim of this study was to separate and purify recombinant β-glucosidase (GLEGB) with elastin-like polypeptide (ELP) and graphene-binding peptide (GB) from cell lysis solution by foam separation and further purification. The study of foam property of GLEGB cell lysis solution indicated that it had excellent foaming property and foam stability, which was suitable for foam separation. This could be due to the GB tag with hydrophobicity, which made the recombinant β-glucosidase with GB preferentially adsorb on the surface of bubbles. At optimum operating conditions of foam separation, the enzyme activity recovery of GLEGB could reach 95.63 ± 1.0%. The foam solution of GLEGB was further purified based on the thermally responsive property of the ELP tag, and the purification fold of GLEGB could reach 29.6 ± 0.5 at the optimum operating conditions. The prominent purification effect indicates that this technique is a simple and efficient technique for the separation and purification of recombinant enzymes.
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Affiliation(s)
- Sihan Fang
- College of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Wenrui Huang
- College of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jiacong Wu
- College of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Juan Han
- College of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Lei Wang
- College of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yun Wang
- College of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
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Laccase multi-point covalent immobilization: characterization, kinetics, and its hydrophobicity applications. Appl Microbiol Biotechnol 2023; 107:719-733. [PMID: 36602562 DOI: 10.1007/s00253-022-12352-9] [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: 10/26/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 01/06/2023]
Abstract
Laccase from Myceliophthora thermophila was immobilized using one-point and multi-point covalent attachment on both a native and a modified new commercial epoxy carrier (Immobead 150P). After 10 cycles of operation at pH 3.0 and temperature 70 °C, the multi-point covalently immobilized laccase on the modified Immobead 150P performed best in terms of immobilization characteristics, retaining 95% of its initial activity. Thermodynamic parameters of thermal inactivation emphasized the positive impact of the immobilization procedure. At 50 °C, the immobilized and free enzyme activity levels dropped by 27 and 73%, respectively, after 48 h of incubation. The immobilized enzyme enhanced its stability in alkaline conditions, resuming 95% of its original activity after 3 h at pH 9.0. Immobilization reduced substrate affinity because the free laccase's Km value was lower than that of the immobilized laccase. Finally, the application of immobilized laccase in an innovative wood treatment process was tested by grafting lauryl gallate (LG) in order to provide hydrophobic properties to the wood. The results showed a relative water contact angle of 85.7% for treated wood, whereas the control showed only 26.6%, after 4 min of contact between water and beechwood surface. KEY POINTS: • Multi-point covalent immobilization of a commercial laccase on a commercial support. • Enzymatic parameters generally improved by immobilization process. • New application of immobilized laccase: enzymatic-assisted wood hydrophobization.
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Maheshwari DG, Shah JS, Shah DB, Patel PK, Singh YR. Emerging trends in extraction and analytical techniques for bromelain. J LIQ CHROMATOGR R T 2023. [DOI: 10.1080/10826076.2022.2161573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Dilip G. Maheshwari
- Department of Pharmaceutical Quality Assurance, L.J. Institute of Pharmacy, LJ University, Ahmedabad, India
| | - Jignesh S. Shah
- Department of Pharmaceutical Regulatory Affairs, L.J. Institute of Pharmacy, LJ University, Ahmedabad, India
| | - Darshil B. Shah
- Department of Pharmaceutical Quality Assurance, L.J. Institute of Pharmacy, LJ University, Ahmedabad, India
| | - Paresh K. Patel
- Department of Pharmaceutical Chemistry, L.J. Institute of Pharmacy, LJ University, Ahmedabad, India
| | - Yash Raj Singh
- Department of Pharmaceutical Quality Assurance, L.J. Institute of Pharmacy, LJ University, Ahmedabad, India
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Wang L, Lan H, Guan W, Han J, Liu Y, Wang Y, Mao Y, Wang Y. One-step Purification of Target Enzymes Using Interaction- and Structure-Based Design of Aptamer-Affinity Responsive Polymers: Selective Immobilization and Enhanced Stability. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Effect of Sulfate, Citrate, and Tartrate Anions on the Liquid-Liquid Equilibrium Behavior of Water + Surfactant. Processes (Basel) 2022. [DOI: 10.3390/pr10102023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Cloud point extraction is a versatile method aimed at separating compounds from complex mixtures and arouses great technological interest, particularly among the biochemical industries. However, one must have deep knowledge of the liquid–liquid equilibrium behavior of systems to properly use the method. Thus, we used thermodynamic parameters to evaluate the effect of citrate, sulfate, and tartrate anions on the phase separation of water + Triton X-114® mixtures at 283.2 K, 293.2 K, and 303.2 K. In these systems, increasing the temperature and the anion molar fraction expanded the biphasic region in the following order: C6H5O73-> SO42- > C4H4O62−. Unlike other studies based on the Hofmeister series, the Gibbs free energy of micellization correlated the anion effect on the biphasic region with the spontaneity of the micelle formation. The water molecules structured around these anions were evaluated according to the shell volume of the immobilized water by electrostriction, volume of water around the hydration shell, Gibbs free energy of hydration, and Gibbs free energy of electrostriction (ΔGel12). The citrate anion presented a higher ΔGel12 of −1781.49 kJ mol−1, due to the larger number of electrons around it. In addition, the partition coefficient of the surfactant in the two liquid phases revealed a linear dependence upon the anion mole fractions by following the previous anion sequence and temperature in the phase separation.
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Musarurwa H, Tavengwa NT. Thermo-responsive polymers and advances in their applications in separation science. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Gamarra FMC, Santana JCC, Llanos SAV, Pérez JAH, Flausino FR, Quispe APB, Mendoza PC, Vanalle RM, Carreño-Farfan C, Berssaneti FT, de Souza RR, Tambourgi EB. High Retention and Purification of Bromelain Enzyme ( Ananas comosus L. Merrill) from Pineapple Juice Using Plain and Hollow Polymeric Membranes Techniques. Polymers (Basel) 2022; 14:polym14020264. [PMID: 35054670 PMCID: PMC8778085 DOI: 10.3390/polym14020264] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/27/2021] [Accepted: 12/29/2021] [Indexed: 02/04/2023] Open
Abstract
The demand for bromelian and pineapple fruit has been increasing substantially in the world because of their benefits for the human health and use in diverse areas. In this context, this work aimed to study the capacity of higher retention (concentration); bromelain activity underwent ultrafiltration from pineapple juice (Ananas comusus L. Merrill). All assays were carried out at pH 7.0 and 7.5, and at 0.05 and 0.40 bar of transmembrane pressures. Results have shown that at the best operating conditions, between 85 and 87% of bromelain activity was recovered using the plain membrane separation process at 0.05 bar. The ultrafiltration has shown the capacity to retain 100% of proteolytic activity of the bromelain extracted. The samples have kept the same physics properties after ultrafiltration, and the result was verified via electrophoresis. The bromelain enzyme obtained was characterized, and pH 7 and between 30 and 40 °C were the best conditions. Therefore, this work shows that the use of both polymeric membranes has shown high efficiency, and can be used in the purification of bromelain enzymes.
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Affiliation(s)
- Felix M. Carbajal Gamarra
- Energy Engineering, University of Brasilia, FGA-UnB, St. Leste Projeção A—Gama Leste, Brasilia 72444-240, DF, Brazil
- Correspondence:
| | - José C. C. Santana
- Department of Management Engineering, Federal University of ABC, University Mall, São Bernardo do Campo 09606-045, SP, Brazil;
| | - Segundo A. V. Llanos
- Facultad de Ingeniería Química e Industrias Alimentarias, CYMAIDS, Universidad Nacional Pedro Ruiz Gallo, Calle Juan XXIII 391, Lambayeque 14013, Peru; (S.A.V.L.); (A.P.B.Q.)
| | - Jorge A. Heredia Pérez
- Business School, Universidad del Pacífico, Calle Sanchez Cerro 2141, Jesús Maria, Lima 15072, Peru;
| | - Fábio Richard Flausino
- Industrial Engineering Postgraduate Program, Nine July University, Vergueiro Street, Liberdade, São Paulo 01504-001, SP, Brazil; (F.R.F.); (R.M.V.)
| | - Ada P. B. Quispe
- Facultad de Ingeniería Química e Industrias Alimentarias, CYMAIDS, Universidad Nacional Pedro Ruiz Gallo, Calle Juan XXIII 391, Lambayeque 14013, Peru; (S.A.V.L.); (A.P.B.Q.)
| | - Pedro Córdova Mendoza
- Facultad de Ingeniería Ambiental y Sanitaria, Universidad Nacional San Luis Gonzaga de Ica, Ciudad Universitaria, Km 305, Ica 11004, Peru;
| | - Rosangela M. Vanalle
- Industrial Engineering Postgraduate Program, Nine July University, Vergueiro Street, Liberdade, São Paulo 01504-001, SP, Brazil; (F.R.F.); (R.M.V.)
| | - Carmen Carreño-Farfan
- Facultad de Ciencias Biológicas, CYMAIDS, Universidad Nacional Pedro Ruiz Gallo, Calle Juan XXIII 391, Lambayeque 14013, Peru;
| | - Fernando T. Berssaneti
- Department of Production Engineering, Polytechnic School of State University of São Paulo, Av. Prof. Luciano Gualberto, 1380—Butantã, São Paulo 05508-010, SP, Brazil;
| | - Roberto R. de Souza
- Department of Chemical Engineering, Federal University of Sergipe, DEQ/UFS, University Campus “José Aloísio de Campos”, Av. Marechal Rondon, S/N, Rosa Elze, São Cristóvão 49100-000, SP, Brazil;
| | - Elias B. Tambourgi
- School of Chemical Engineering, State University of Campinas, DESQ/FEQ/UNICAMP, University Campus “ZeferinoVaz”, Av. Albert Einstein, 500, Campinas 6066, São Paulo 13083-840, SP, Brazil;
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Lan H, Liu Y, Mao Y, Han J, Wang Y, Wang Y, Wang L. Rational design of hydrogen bonds for driving thermo-responsive phase transition and assembly behavior of block copolymer in water. Polym Chem 2022. [DOI: 10.1039/d1py01578h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen bonding interactions were intensified in the present study by adjusting the chain architectures, which provided a sufficient driving force for UCST phase transition in pure water.
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Affiliation(s)
- Huiling Lan
- School of Chemistry and Chemical Engineering, Jiangsu University, 212013 Zhenjiang, China
| | - Yuanyuan Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, 212013 Zhenjiang, China
| | - Yanli Mao
- Henan Key Laboratory of Water Pollution Control and Rehabilitation Technology, Henan University of Urban Construction, 467036 Pingdingshan, China
| | - Juan Han
- School of Food and Biological Engineering, Jiangsu University, 212013 Zhenjiang, China
| | - Yu Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, 212013 Zhenjiang, China
| | - Yun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, 212013 Zhenjiang, China
| | - Lei Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, 212013 Zhenjiang, China
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Han J, Fang S, He X, Wang L, Li C, Wu J, Cai Y, Wang Y. Combination of aqueous two-phase flotation and inverse transition cycling: Strategies for separation and purification of recombinant β-glucosidase from cell lysis solution. Food Chem 2021; 373:131543. [PMID: 34782214 DOI: 10.1016/j.foodchem.2021.131543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 11/02/2021] [Accepted: 11/03/2021] [Indexed: 01/12/2023]
Abstract
This work was developed to solve the problems of the restriction of non-specific adsorption and time-dependent denaturation in the purification of recombinant proteins by multistage chromatographic procedures. A novel purification method (ATPF-ITC) which combining aqueous two-phase flotation (ATPF) with inverse transition cycling (ITC) was established and used to efficiently purify recombinant β-glucosidase (GLEGB) from cell lysis solution. First, GLEGB would preferentially adsorb on the nitrogen bubble interface relied on the hydrophobic property of the graphene-binding (GB) tag and enter into the top phase of ATPF. Second, GLEGB was achieved further purification by one-round ITC method based on the thermosensitive of the elastin-like polypeptide (ELP) tag. Consequently, the enzymatic activity recovery of GLEGB was 124.92% ± 0.83%, and the purification factor reached 24.26 ± 0.22. The purification results remained stable after six polymer cycles, and the process of ATPF-ITC had no negative effect on the structure of recombinant protein.
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Affiliation(s)
- Juan Han
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Sihan Fang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xingchen He
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Lei Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Chunmei Li
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jiacong Wu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yunfeng Cai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
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Wang L, Liu Y, Liu Y, Mao Y, Han J, Li W, Wang Y. Recyclable aptamer-derived aqueous two-phase flotation for high-efficiency separation of mercury(II) ions modulated by aggregation states. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118917] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Enantioselective liquid-liquid extraction of tryptophan enantiomers by a recyclable aqueous biphasic system based on stimuli-responsive polymers. J Chromatogr A 2021; 1656:462532. [PMID: 34525428 DOI: 10.1016/j.chroma.2021.462532] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 11/23/2022]
Abstract
The hydrophobic organic solvents/water biphasic system had been always used in the traditional enantioselective liquid-liquid extraction (ELLE). In recent years, aqueous biphasic systems (ABSs) are considered as a promising method used in the ELLE. In the present work, a recyclable ABS composed of a temperature-responsive polymer poly(MAH-β-CD-co-NIPAAm) (PN-CD) and a pH-responsive polymer poly(AA-DMAEMA-BMA) (PADB) was employed in the enantioseparation of tryptophan enantiomers. The polymer PN-CD acted as not only the phase-forming component but also the chiral selector, which can be recycled by changing the temperature. The polymer PADB can be used as the phase-forming component, which can also be recycled by adjusting the pH. The phase behaviors of this PN-CD/PADB ABS had been studied. The influencing parameters were studied for this chiral separation process, including the polymer concentration, initial tryptophan concentration, extraction temperature, and system pH. The maximum separation factor (α) of 1.42 was obtained by one-step extraction under the optimal conditions. Meanwhile, the distribution coefficients of L-tryptophan (L-Trp) and D-tryptophan (D-Trp) were 2.79 and 1.96, respectively. This study develops a green and sustainable strategy for enantioseparation by using the ELLE.
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Vagias A, Papagiannopoulos A, Kreuzer LP, Giaouzi D, Busch S, Pispas S, Müller-Buschbaum P. Effects of Polymer Block Length Asymmetry and Temperature on the Nanoscale Morphology of Thermoresponsive Double Hydrophilic Block Copolymers in Aqueous Solutions. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Apostolos Vagias
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Aristeidis Papagiannopoulos
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Lucas P. Kreuzer
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Despoina Giaouzi
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Sebastian Busch
- German Engineering Materials Science Centre (GEMS) at Heinz Maier-Leibnitz Zentrum (MLZ), Helmholtz-Zentrum Hereon, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Stergios Pispas
- Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece
| | - Peter Müller-Buschbaum
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
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Xu H, Li X, Hao Y, Zhao X, Cheng Y, Zhang J. Highly selective separation of acteoside from Cistanche tubulosa using an ionic liquid based aqueous two–phase system. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115982] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Zhou L, Li R, Li X, Zhang Y. One-step selective affinity purification and immobilization of His-tagged enzyme by recyclable magnetic nanoparticles. Eng Life Sci 2021; 21:364-373. [PMID: 34140847 PMCID: PMC8182278 DOI: 10.1002/elsc.202000093] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/21/2021] [Accepted: 03/02/2021] [Indexed: 11/07/2022] Open
Abstract
The NiFe2O4 magnetic nanoparticles (NF-MNPs) were prepared for one-step selective affinity purification and immobilization of His-tagged recombinant glucose dehydrogenase (GluDH). The prepared nanoparticles were characterized by a Fourier-transform infrared spectrophotometer and microscopy. The immobilization and purification of His-tagged GluDH on NF-MNPs were investigated. The optimal immobilization conditions were obtained that mixed cell lysis and carriers in a ratio of 0.13 in pH 8.0 Tris-HCl buffer at 30℃ and incubated for 2 h. The highest activity recovery and protein bindings were 71.39% and 38.50 μg mg-1 support, respectively. The immobilized GluDH exhibited high thermostability, pH-stability and it can retain more than 65% of the initial enzyme after 10 cycles for the conversion of glucose to gluconolactone. Comparing with a commercial Ni-NTA resin, the NF-MNPs displayed a higher specific affinity with His-tagged recombinant GluDH.
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Affiliation(s)
- Li‐Jian Zhou
- The People's Hospital of DanyangAffiliated Danyang Hospital of Nantong UniversityDanyangJiangsu ProvinceP. R. China
| | - Rui‐Fang Li
- School of PharmacyJiangsu UniversityZhenjiangP. R. China
| | - Xue‐Yong Li
- School of PharmacyJiangsu UniversityZhenjiangP. R. China
| | - Ye‐Wang Zhang
- School of PharmacyJiangsu UniversityZhenjiangP. R. China
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19
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Yi Y, Liu L, Wu Y, Zhu G. Fluorescent and Colorimetric Dual-signal Enantiomers Recognition via Enzyme Catalysis: The Case of Glucose Enantiomers Using Nitrogen-doped Silicon Quantum Dots/Silver Probe Coupled with β-D-Glucose Oxidase. ANAL SCI 2021; 37:275-281. [PMID: 32863333 DOI: 10.2116/analsci.20p228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Chiral enantiomer recognition is important but facing tough challenges in the direct quantitative determination for complex samples. In this work, via chosing nitrogen-doped silicon quantum dots (N-SiQD) as optical nanoprobe and constructing N-SiQD/silver (N-SiQD/Ag NPs) complex, β-D-GOx as model enzyme and glucose enantiomers as analytes, a fluorescent and colorimetric dual-signal chiral sensing strategy was proposed herein for chiral recognition based on specific enzyme-catalyzed reaction. N-SiQD can exhibit intense fluorescence, while it can be quenched by Ag NPs owing to the formation of N-SiQD/Ag NPs. In the presence of glucose isomer, D-glucose is catalytically hydrolyzed by β-D-GOx to form H2O2 owing to the specific enzyme catalyzed reaction between D-glucose and β-D-GOx, and H2O2 can etch Ag NPs from the N-SiQD/Ag NPs probe to change the solution color from brown to colorless and restore the N-SiQD fluorescence; while these phenomena cannot be caused by L-glucose, a dual-signal sensing method was thus constructed for recognizing glucose enantiomers. It is believed that the chiral enantiomers recognition strategy via enzyme catalysis has great application for selective and quantificational detection of enantiomers in the complex sample system.
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Affiliation(s)
- Yinhui Yi
- School of the Environment and Safety Engineering, Jiangsu University.,State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University
| | - Lirong Liu
- School of the Environment and Safety Engineering, Jiangsu University
| | - Yuntao Wu
- School of the Environment and Safety Engineering, Jiangsu University
| | - Gangbing Zhu
- School of the Environment and Safety Engineering, Jiangsu University.,Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences.,State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University
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20
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Chen P, Yao S, Zheng D, Xu Z, Yu J, Liang T. Fabrication of a novel core–shell–shell temperature-sensitive magnetic composite with excellent performance for papain adsorption. RSC Adv 2021; 11:24843-24851. [PMID: 35481057 PMCID: PMC9036859 DOI: 10.1039/d1ra04128b] [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: 05/27/2021] [Accepted: 07/12/2021] [Indexed: 11/30/2022] Open
Abstract
Herein, a novel temperature-sensitive magnetic composite (Fe3O4@SiO2@P(NIPAM-co-VI)/Cu2+) with a uniform core–shell–shell structure was successfully prepared via a layer-by-layer method. The resulting magnetic composite revealed good magnetic properties and remarkable affinity to papain with a maximum adsorption capacity of 199.17 mg g−1. The adsorption equilibrium data fitted the pseudo-second-order kinetic and Freundlich models well, and the major thermodynamics parameters indicated that adsorption was an endothermic and spontaneous process. Fe3O4@SiO2@P(NIPAM-co-VI)/Cu2+ could thermally protect papain, which is attributed to the reversible hydrophilic–hydrophobic transition of the composite at temperatures below and above the lower critical solution temperature. More importantly, the magnetic composite could be recycled at least six times without a remarkable loss in its adsorption capacity, and the process of adsorption and elution had no significant effect on the activity and structure of papain. This work could provide a novel separation method for papain without loss of its activity. A novel core–shell–shell temperature-sensitive magnetic composite was designed. The composites showed excellent performance for papain adsorption and could thermally protect papain.![]()
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Affiliation(s)
- Pengfei Chen
- School of Food and Bioengineering
- Xihua University
- Chengdu
- People's Republic of China
| | - Shun Yao
- School of Chemical Engineering
- Sichuan University
- Chengdu
- People's Republic of China
| | - Dongmei Zheng
- School of Food and Bioengineering
- Xihua University
- Chengdu
- People's Republic of China
| | - Zhiyuan Xu
- School of Food and Bioengineering
- Xihua University
- Chengdu
- People's Republic of China
| | - Jinling Yu
- School of Food and Bioengineering
- Xihua University
- Chengdu
- People's Republic of China
| | - Tingting Liang
- School of Food and Bioengineering
- Xihua University
- Chengdu
- People's Republic of China
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21
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Ji W, Ao W, Sun M, Feng C, Wang Y. Separation and purification of horseradish peroxidase from horseradish roots using a novel integrated method. NEW J CHEM 2021. [DOI: 10.1039/d0nj04614k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The aim of the present work was to develop a novel method integrating two-step aqueous two-phase extraction and temperature-controlled affinity precipitation for the separation and purification of horseradish peroxidase (HRP) from horseradish roots.
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Affiliation(s)
- Wei Ji
- School of Medicine
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Wenmei Ao
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Mengqiu Sun
- School of Pharmacy
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Chunlai Feng
- School of Pharmacy
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Yun Wang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
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22
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Wang Y, Xiao F, Jin G. Structural basis of quinolone derivatives, inhibition of type I and II topoisomerases and inquiry into the relevance of bioactivity in odd or even branches with molecular docking study. J Mol Struct 2020; 1221:128869. [PMID: 32834112 PMCID: PMC7347330 DOI: 10.1016/j.molstruc.2020.128869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/08/2020] [Accepted: 07/09/2020] [Indexed: 12/11/2022]
Abstract
The structural modification of quinolone derivatives has been a hot spot in recent years, especially the modification of the N-1 position, which is the part that this article focuses on. In this paper, series of synthesized quinoline quaternary ammonium salts with odd and even carbon number alkyl groups in N-1 position were used to explain the influence of the alkyl side chain on activity. With respect to all the recently synthesized twenty products, the biological activity results exhibited significant antitumor and antibacterial activity with obvious differences in the target alkyliodine substituted compounds and the antibacterial activities apparently had the prominent odd-carbon number predominance. Compound 8-((4-(benzyloxy)phenyl)amino)-7-(ethoxycarbonyl)-5-propyl-[1,3]dioxolo[4,5-g]quinolin-5-ium (4d) was found to be the most potent derivative with IC50 values of 4 ± 0.88, 4 ± 0.42, 14±1.96, and 32±3.66 against A-549, Hela, SGC-7901, and L-02 cells, respectively, stronger than the positive control 5-FU and MTX. Furthermore, it had the most potent bacterial inhibitory activity of MIC value against E. coli (ATCC 29213) and Staphylococcus aureus (ATCC 8739) at 3.125 nmol mL−1. With respect to molecular simulations, in order to illustrate the possible mechanism of the difference between the series of compounds in the even or odd carbon chain alkyliodine substitution, this paper simulated the conceivable mode and explained the main interactions. Finally, we could find that the position and proportion of hydrogen bonds and other interactions in each series were regarded as the main reasons for this difference in activity.
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Affiliation(s)
- Yilin Wang
- The People's Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Zhenjiang, 212300, PR China
| | - Fuyan Xiao
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
| | - Guofan Jin
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
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23
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All-aqueous emulsions as miniaturized chemical reactors in the food and bioprocess technology. Curr Opin Food Sci 2020. [DOI: 10.1016/j.cofs.2020.06.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Gao C, Cai C, Liu J, Wang Y, Chen Y, Wang L, Tan Z. Extraction and preliminary purification of polysaccharides from Camellia oleifera Abel. seed cake using a thermoseparating aqueous two-phase system based on EOPO copolymer and deep eutectic solvents. Food Chem 2020; 313:126164. [DOI: 10.1016/j.foodchem.2020.126164] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 12/21/2019] [Accepted: 01/04/2020] [Indexed: 11/17/2022]
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25
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One-step cold-induced aqueous two-phase system for the simultaneous determination of fipronil and its metabolites in dietary samples by liquid chromatography–high resolution mass spectrometry and the application in Total Diet Study. Food Chem 2020; 309:125748. [DOI: 10.1016/j.foodchem.2019.125748] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 09/17/2019] [Accepted: 10/19/2019] [Indexed: 01/07/2023]
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26
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Zhang R, Wang L, Han J, Wu J, Li C, Ni L, Wang Y. Improving laccase activity and stability by HKUST-1 with cofactor via one-pot encapsulation and its application for degradation of bisphenol A. JOURNAL OF HAZARDOUS MATERIALS 2020; 383:121130. [PMID: 31518815 DOI: 10.1016/j.jhazmat.2019.121130] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/23/2019] [Accepted: 08/30/2019] [Indexed: 05/09/2023]
Abstract
Enhancing the catalytic activity and stability of enzymes is of great importance in the development of green chemical and cost-effective application, with removal of bisphenol A (BPA) as a prominent example. Engineering immobilization carriers and immobilization methods of enzymes endows great potential to achieve above goal. Until now, these reports have focused on employing the metal-organic frameworks (MOFs) to increase the stability and reusability of enzymes, an enhancement in its catalytic activity has yet to be addressed. This work introduced a biomimetic mineralization process for facile synthesis of laccase@HKUST-1 biocomposite under mild condition. By exploiting the activity of laccase@HKUST-1, we demonstrated, for the first time, that the integration of laccase and HKUST-1 containing cofactor Cu2+ ions leaded to 1.5-fold enhancement in the catalytic activity compared with free laccase, which was due to the synergistic enhancement of substrate oxidation. Indeed, the laccase@HKUST-1 biocomposite could function as active biocatalysts under biologically challenging conditions, such as acidic condition, high temperature, organic solvent, and continuous operation. The oxidation of phenols, such as BPA, with laccase@HKUST-1 reached higher catalytic performance than free laccase, and gave 100% degradation efficiency within 4 h. This study provides a feasible method to improve the activity and stability of laccase, which enable completely remove of BPA from the environment.
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Affiliation(s)
- Rongzheng Zhang
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu Province, China
| | - Lei Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu Province, China
| | - Juan Han
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu Province, China
| | - Jiacong Wu
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu Province, China
| | - Chunmei Li
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu Province, China
| | - Liang Ni
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu Province, China
| | - Yun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu Province, China.
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27
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Hu J, Xiao F, Jin G. Zirconium doping level modulation combined with chalconylthiourea organic frameworks induced enhancement of luminescence applied to cell imaging. NEW J CHEM 2020. [DOI: 10.1039/d0nj02327b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Derivatives of a zirconium metal–organic framework as the center polymer material with a chalconylthiourea polymer (CT) were applied to cell imaging.
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Affiliation(s)
- Jianpeng Hu
- Department of Urology
- Affiliated People's Hospital of Jiangsu University
- Zhenjiang
- P. R. China
| | - Fuyan Xiao
- School of Pharmacy
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Guofan Jin
- School of Pharmacy
- Jiangsu University
- Zhenjiang 212013
- P. R. China
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28
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Wang L, Wang Y, Li W, Zhi W, Liu Y, Ni L, Wang Y. Recyclable DNA-Derived Polymeric Sensor: Ultrasensitive Detection of Hg(II) Ions Modulated by Morphological Changes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:40575-40584. [PMID: 31613586 DOI: 10.1021/acsami.9b13035] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Going beyond organic solvent as the solubilizer for small-molecular organic probes motivates exploration of water-soluble polymeric sensors. In this respect, dye-derived thermal-responsive polymeric sensors are an attractive direction, but for its practical application, it is limited by sensor recycling because only irreversible change in the structure of the recognition unit for many sensors can trigger the appearance of the detection signal. Here, we established the oligonucleotide-derived thermal-responsive polymeric sensor, TBC-P1, which overcame this fundamental limitation. The TBC-P1 sensor was based on reversible binding between oligonucleotides and Hg2+ ions, and easy sensor separation via tuning temperature, achieving the Hg2+ detection in a cost-effective and green manner. The TBC-P1 sensor displayed specific and rapid sensing properties toward Hg2+ ions in pure aqueous media via turn-off fluorescence emission, with a limit of detection as low as 0.65 nM (much lower than the presently reported dye-derived polymeric sensors). This high detection sensitivity was further enhanced (with LOD = 0.17 nM) via warming to yield spherical micelles, in which the oligonucleotide-containing thermoresponsive PNIPAM block forming a hydrophobic core amplified the fluorescence signals. Treating the Hg2+-trapped micelles with cysteine (Cys) led to competition-induced release of these combined Hg2+ ions and then thermally precipitating and recycling polymeric sensor TBC-P1. This oligonucleotide-derived thermalresponsive polymeric sensor will open a universal avenue for sensor recycling, which will achieve the goal of reducing cost and improving detection sensitivity of sensors.
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Affiliation(s)
- Lei Wang
- School of Chemistry and Chemical Engineering , Jiangsu University , 301 Xuefu Road , Zhenjiang 212013 , Jiangsu Province , China
| | - Yu Wang
- School of Chemistry and Chemical Engineering , Jiangsu University , 301 Xuefu Road , Zhenjiang 212013 , Jiangsu Province , China
| | - Wenxuan Li
- School of Chemistry and Chemical Engineering , Jiangsu University , 301 Xuefu Road , Zhenjiang 212013 , Jiangsu Province , China
| | - Wenjing Zhi
- School of Chemistry and Chemical Engineering , Jiangsu University , 301 Xuefu Road , Zhenjiang 212013 , Jiangsu Province , China
| | - Yuanyuan Liu
- School of Chemistry and Chemical Engineering , Jiangsu University , 301 Xuefu Road , Zhenjiang 212013 , Jiangsu Province , China
| | - Liang Ni
- School of Chemistry and Chemical Engineering , Jiangsu University , 301 Xuefu Road , Zhenjiang 212013 , Jiangsu Province , China
| | - Yun Wang
- School of Chemistry and Chemical Engineering , Jiangsu University , 301 Xuefu Road , Zhenjiang 212013 , Jiangsu Province , China
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29
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Luo P, Han J, Li Y, Wang Y, Wang L, Ni L. Preparation of dendritic polymer-based magnetic carrier for application of bromelain separation and purification. J Food Biochem 2019; 43:e12976. [PMID: 31489668 DOI: 10.1111/jfbc.12976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 05/17/2019] [Accepted: 06/15/2019] [Indexed: 11/27/2022]
Abstract
Bromelain has wide applications in different industries, such as food, textile, and medicine. Traditional approaches for bromelain separation and purification from solution still have many problems, including unsatisfactory binding efficiency, time-consuming operation, and costly equipment. In the present study, a new type of dendritic polymer-based magnetic carrier (GO@Fe3 O4 @PEI-Cu2+ ) was first prepared for bromelain separation and purification in solution. The histidine existing in bromelain could bind to Cu2+ cations adsorbed on the surface of the magnetic carrier, and the magnetic carrier showed excellent performance for bromelain separation and purification in solution, with the adsorption capacity up to 357 mg/g. The magnetic carrier also exhibited excellent property in the aspect of recyclability. It was found that the magnetic carrier also presented desirable performance for the separation and purification of bromelain from the crude extract of pineapple peel, and the bromelain structure remained intact before and after elution process. PRACTICAL APPLICATIONS: Considering many advantages of bromelain in the applications of pharmaceutical and food industries, this study is aimed at presenting a novel magnetic carrier with high stability and fabulous performance for bromelain separation and purification in solution and achieving the practical application that the magnetic carrier can efficiently separate bromelain from the crude extract of pineapple peel.
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Affiliation(s)
- Peng Luo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Juan Han
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Yuan Li
- Development Strategy Research Office of Policy Research Center, Council of Management Pingdingshan National Hi-tech Industrial Development Zone, Pingdingshan, PR China
| | - Yun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, PR China
| | - Li Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, PR China
| | - Liang Ni
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, PR China
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