1
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Mesoporous molecularly imprinted nanoparticles with peptide mimics for the detection of phenolic compounds. Anal Chim Acta 2023; 1250:340970. [PMID: 36898811 DOI: 10.1016/j.aca.2023.340970] [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: 10/14/2022] [Revised: 01/19/2023] [Accepted: 02/12/2023] [Indexed: 02/16/2023]
Abstract
Immobilized enzymes outperform free enzymes in many properties and are widely used in environmental monitoring, engineering applications, food and medical fields. Based on the developed immobilization techniques, the search for immobilization with wider applicability, lower cost and more stable enzyme properties is of significant importance. In this study, we reported a molecular imprinting strategy for immobilizing peptide mimics of DhHP-6 on mesoporous materials. The DhHP-6 molecularly imprinted polymer (MIP) showed much higher adsorption capacity than raw mesoporous silica toward DhHP-6. The DhHP-6 peptide mimics was immobilized on the surface of mesoporous silica for the fast detection of phenolic compounds, a widely spread pollutant with highly toxic and difficult in degradation. Immobilized enzyme of DhHP-6-MIP exhibited higher peroxidase activity, better stability, and recyclability than free peptide. Notably, DhHP-6-MIP showed excellent linearity for the detection of the two phenols with detection limits of 0.28 μM and 0.25 μM, respectively. In combination with the spectral analysis and PCA method, DhHP-6-MIP provided better discrimination between the six phenolic compounds (phenol, catechol, resorcinol, hydroquinone, 2-chlorophenol, 2, 4-dichlorophenol). Our study showed that immobilization of peptide mimics by the molecular imprinting strategy using mesoporous silica as carriers was a simple and effective approach. The DhHP-6-MIP has great potentiality for the monitoring and degradation of environmental pollutants.
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2
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Yuan B, Huang T, Wang X, Ding Y, Jiang L, Zhang Y, Tang J. Oxygen-Tolerant RAFT Polymerization Catalyzed by a Recyclable Biomimetic Mineralization Enhanced Biological Cascade System. Macromol Rapid Commun 2021; 43:e2100559. [PMID: 34713523 DOI: 10.1002/marc.202100559] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/17/2021] [Indexed: 12/12/2022]
Abstract
An enzyme cascade system including glucose oxidase (GOx) and iron porphyrin (DhHP-6) is encapsulated in a metal-organic framework called zeolitic imidazolate framework-8 (ZIF-8) through one-step facile synthesis. The composite (GOx&DhHP-6@ZIF-8) is then used to initiate oxygen-tolerant reversible addition-fragmentation chain-transfer polymerization for different methacrylate monomers, such as 2-diethylaminoethyl methacrylate, 2-hydroxyethyl methacrylate, and poly(ethylene glycol) methyl ether methacrylate (Mn = 500 g mol-1 ). The composite shows the robustness toward solvent and temperatures, all polymerizations using above monomers and catalyzing by GOx&DhHP-6@ZIF-8 exhibits high monomer conversion (>85%) and narrow molar mass dispersity (<1.3). Besides, acrylic and acrylamide monomers such as 2-hydroxyethyl acrylate and N,N-dimethylacrylamide are also carried to demonstrate the broad applicability. Proton nuclear magnetic resonance characterization and chain extension experiments confirm the retaining end groups of the resultant polymers, which is a significant feature of living polymerization. More importantly, the process of recycling the composite through a centrifuge is simplistic, and the composite still maintains similar activity compared to the original composites after five times. This low-cost and easily separated composite catalyst represents a versatile strategy to synthesize well-defined functional polymers suitable for industrial-scale production.
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Affiliation(s)
- Bolei Yuan
- Department of Polymer Science, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Tingting Huang
- Department of Polymer Science, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Xinghuo Wang
- Department of Polymer Science, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Yi Ding
- Department of Polymer Science, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Lin Jiang
- Department of Polymer Science, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Yunhe Zhang
- Department of Polymer Science, College of Chemistry, Jilin University, Changchun, 130012, China.,Key Laboratory of High Performance Plastics, Ministry of Education, Jilin University, Changchun, 130012, China
| | - Jun Tang
- Department of Polymer Science, College of Chemistry, Jilin University, Changchun, 130012, China
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3
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Liu Y, Song L, Feng N, Jiang W, Jin Y, Li X. Recent advances in the synthesis of biodegradable polyesters by sustainable polymerization: lipase-catalyzed polymerization. RSC Adv 2020; 10:36230-36240. [PMID: 35517080 PMCID: PMC9056969 DOI: 10.1039/d0ra07138b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 09/21/2020] [Indexed: 12/12/2022] Open
Abstract
Over the past three decades, enzymatic polymerization has dramatically developed and gradually broadened as a creative methodology in the construction of polymeric materials with tailor-made structures and properties. Compared with transition metal catalyst polymerizations, enzymatic polymerization is more attractive in the biomedicine field due to the metal-free residue, good biocompatibility, and few by-products. Meanwhile, enzymatic polymerization has far more activity towards macrolides. In this review, the synthesis of lipase-catalyzed polymer materials is systematically summarized, focusing on the synthesis of the complex and well-defined polymers. The enzymatic polyester synthesis was then discussed concerning the different reaction types, including ring-opening polymerization, polycondensation, a combination of ring-opening polymerization with polycondensation, and chemoenzymatic polymerization. Besides, exploration of novel biocatalysts and reaction media was also described, with particular emphasis on the enzymes obtained via immobilization or protein engineering strategies, green solvents, and reactors. Finally, recent developments in catalytic kinetics and mechanistic studies through the use of spectroscopy, mathematics, and computer techniques have been introduced. Besides, we addressed the remaining central issues in enzymatic polymerization and discussed current studies aimed at providing answers.
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Affiliation(s)
- Ying Liu
- College of Chemistry, Jilin University No. 2699, Qianjin Road Changchun Jilin 130012 PR China
| | - Lijie Song
- First Clinical Hospital, Jilin Province Academy of Traditional Chinese Medicine Changchun 130021 China
| | - Na Feng
- Department of Molecular Pathology, Application Center for Precision Medicine, The Second Affiliated Hospital of Zhengzhou University, Academy of Medical Sciences Zhengzhou Henan 450052 China
| | - Wei Jiang
- Department of Molecular Pathology, Application Center for Precision Medicine, The Second Affiliated Hospital of Zhengzhou University, Academy of Medical Sciences Zhengzhou Henan 450052 China
| | - Yongri Jin
- College of Chemistry, Jilin University No. 2699, Qianjin Road Changchun Jilin 130012 PR China
| | - Xuwen Li
- College of Chemistry, Jilin University No. 2699, Qianjin Road Changchun Jilin 130012 PR China
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4
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Yuan M, Cui X, Zhu W, Tang H. Development of Environmentally Friendly Atom Transfer Radical Polymerization. Polymers (Basel) 2020; 12:E1987. [PMID: 32878287 PMCID: PMC7563397 DOI: 10.3390/polym12091987] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/22/2020] [Accepted: 08/24/2020] [Indexed: 02/06/2023] Open
Abstract
Atom transfer radical polymerization (ATRP) is one of the most successful techniques for the preparation of well-defined polymers with controllable molecular weights, narrow molecular weight distributions, specific macromolecular architectures, and precisely designed functionalities. ATRP usually involves transition-metal complex as catalyst. As the most commonly used copper complex catalyst is usually biologically toxic and environmentally unsafe, considerable interest has been focused on iron complex, enzyme, and metal-free catalysts owing to their low toxicity, inexpensive cost, commercial availability and environmental friendliness. This review aims to provide a comprehensive understanding of iron catalyst used in normal, reverse, AGET, ICAR, GAMA, and SARA ATRP, enzyme as well as metal-free catalyst mediated ATRP in the point of view of catalytic activity, initiation efficiency, and polymerization controllability. The principle of ATRP and the development of iron ligand are briefly discussed. The recent development of enzyme-mediated ATRP, the latest research progress on metal-free ATRP, and the application of metal-free ATRP in interdisciplinary areas are highlighted in sections. The prospects and challenges of these three ATRP techniques are also described in the review.
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Affiliation(s)
| | | | | | - Huadong Tang
- Institute of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China; (M.Y.); (X.C.); (W.Z.)
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5
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Yan J, Li Z, Liu M, Sun X, Ma L, Wang Z, Zhao Z, Huang X, Yuan L. Activity adaptability of a DhHP-6 peroxidase-mimic in wide pH and temperature ranges and solvent media. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01855g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deuterohemin-β-Ala-His-Thr-Val-Glu-Lys (DhHp-6): peroxidase with high activity.
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Affiliation(s)
- Jiaqing Yan
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education
- College of Life Science
- Jilin University
- Changchun 130012
- China
| | - Zhengqiang Li
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education
- College of Life Science
- Jilin University
- Changchun 130012
- China
| | - Min Liu
- Hospital of Stomatology
- Jilin University
- Changchun
- China
| | - Xiaoli Sun
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- China
| | - Li Ma
- Department of Physics
- Georgia Southern University
- Statesboro
- USA
| | - Zhi Wang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education
- College of Life Science
- Jilin University
- Changchun 130012
- China
| | - Zijian Zhao
- Institute of Agro-food Technology
- Jilin Academy of Agricultural Sciences
- Changchun
- China
| | - Xuri Huang
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- China
| | - Long Yuan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- College of Physics
- Jilin Normal University
- Changchun 130103
- China
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6
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Tuning the properties of hybrid SiO2/ poly(glycerol monomethacrylate) nanoparticles for enzyme nanoencapsulation. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123734] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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7
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Gajewska B, Raccio S, Rodriguez KJ, Bruns N. Chlorophyll derivatives as catalysts and comonomers for atom transfer radical polymerizations. Polym Chem 2019. [DOI: 10.1039/c8py01492b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Derivatives of chlorophyll were investigated as both catalysts and comonomers to generate well-defined polymers with narrow dispersities under AGET ATRP conditions.
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Affiliation(s)
| | | | | | - Nico Bruns
- Adolphe Merkle Institute
- 1700 Fribourg
- Switzerland
- Department of Pure and Applied Chemistry
- University of Strathclyde
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8
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Rodriguez KJ, Gajewska B, Pollard J, Pellizzoni MM, Fodor C, Bruns N. Repurposing Biocatalysts to Control Radical Polymerizations. ACS Macro Lett 2018; 7:1111-1119. [PMID: 35632946 DOI: 10.1021/acsmacrolett.8b00561] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Reversible-deactivation radical polymerizations (controlled radical polymerizations) have revolutionized and revitalized the field of polymer synthesis. While enzymes and other biologically derived catalysts have long been known to initiate free radical polymerizations, the ability of peroxidases, hemoglobin, laccases, enzyme-mimetics, chlorophylls, heme, red blood cells, bacteria, and other biocatalysts to control or initiate reversible-deactivation radical polymerizations has only been described recently. Here, the scope of biocatalytic atom transfer radical polymerizations (bioATRP), enzyme-initiated reversible addition-fragmentation chain transfer radical polymerizations (bioRAFT), biocatalytic organometallic-mediated radical polymerizations (bioOMRP), and biocatalytic reversible complexation mediated polymerizations (bioRCMP) is critically reviewed, and the potential of these reactions for the environmentally friendly synthesis of precision polymers, for the preparation of functional nanostructures, for the modification of surfaces, and for biosensing is discussed.
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Affiliation(s)
- Kyle J. Rodriguez
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Bernadetta Gajewska
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Jonas Pollard
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Michela M. Pellizzoni
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Csaba Fodor
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Nico Bruns
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
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9
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Jiang W, Pan Y, Yang J, Liu Y, Yang Y, Tang J, Li Q. A peroxidase mimic with atom transfer radical polymerization activity constructed through the grafting of heme onto metal-organic frameworks. J Colloid Interface Sci 2018; 521:62-68. [DOI: 10.1016/j.jcis.2018.03.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/08/2018] [Accepted: 03/08/2018] [Indexed: 11/16/2022]
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10
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Jiang W, Wang X, Chen J, Liu Y, Han H, Ding Y, Li Q, Tang J. Deuterohemin-Peptide Enzyme Mimic-Embedded Metal-Organic Frameworks through Biomimetic Mineralization with Efficient ATRP Catalytic Activity. ACS APPLIED MATERIALS & INTERFACES 2017; 9:26948-26957. [PMID: 28724289 DOI: 10.1021/acsami.7b09218] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An enzyme mimic harboring iron porphyrin (DhHP-6) embedded in zeolite imidazolate framework-8 (ZIF-8) was constructed through a biomimetic mineralization approach to obtain composite DhHP-6@ZIF-8. The composite was then used as a catalyst in the atom transfer radical polymerization (ATRP) of poly(ethylene glycol) methyl ether methacrylate (PEGMA500) in which poly(PEGMA500) could be synthesized with monomer conversion of 76.1% and Mn of 45 900 g/mol, stronger than that obtained when using free DhHP-6 as a catalyst. More importantly, it could efficiently overcome the drawbacks of free DhHP-6 and achieve the easy separation of DhHP-6 from the catalytic system and the elimination of iron residues in the synthesized polymer. In addition, it exhibited an enhanced recyclability with monomer conversion of 75.7% after five cycles and favorable stability during the ATRP reaction with <3.0% of DhHP-6 release within 100 h. Thus, the enzyme mimic-ZIF-8 composite developed through biomimetic mineralization can be potentially used as an effective catalyst for preparing well-defined polymers with biomedical applications.
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Affiliation(s)
- Wei Jiang
- Department of Polymer Science, College of Chemistry and ‡Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University , Changchun 130012, China
| | - Xinghuo Wang
- Department of Polymer Science, College of Chemistry and ‡Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University , Changchun 130012, China
| | - Jiawen Chen
- Department of Polymer Science, College of Chemistry and ‡Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University , Changchun 130012, China
| | - Ying Liu
- Department of Polymer Science, College of Chemistry and ‡Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University , Changchun 130012, China
| | - Haobo Han
- Department of Polymer Science, College of Chemistry and ‡Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University , Changchun 130012, China
| | - Yi Ding
- Department of Polymer Science, College of Chemistry and ‡Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University , Changchun 130012, China
| | - Quanshun Li
- Department of Polymer Science, College of Chemistry and ‡Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University , Changchun 130012, China
| | - Jun Tang
- Department of Polymer Science, College of Chemistry and ‡Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University , Changchun 130012, China
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11
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Wang X, Yun W, Jiang W, Wang D, Zhang L, Tang J. An amphiphilic non-viral gene vector prepared by a combination of enzymatic atom transfer radical polymerization and enzymatic ring-opening polymerization. RSC Adv 2017. [DOI: 10.1039/c6ra28650j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An amphiphilic non-viral gene vector (PCL-b-PGEA) was prepared by a combination of enzymatic ring-opening polymerization and enzymatic atom transfer radical polymerization for the first time and the kinetic features and gene delivery properties were investigated.
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Affiliation(s)
- Xinghuo Wang
- Department of Polymer Science
- Chemistry College
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Wenjing Yun
- Department of Pathophysiology
- Basic Medical College
- Jilin University
- Changchun 130021
- People's Republic of China
| | - Wei Jiang
- Department of Polymer Science
- Chemistry College
- Jilin University
- Changchun 130012
- People's Republic of China
| | - Ding Wang
- Department of Pathophysiology
- Basic Medical College
- Jilin University
- Changchun 130021
- People's Republic of China
| | - Ling Zhang
- Department of Pathophysiology
- Basic Medical College
- Jilin University
- Changchun 130021
- People's Republic of China
| | - Jun Tang
- Department of Polymer Science
- Chemistry College
- Jilin University
- Changchun 130012
- People's Republic of China
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12
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Liu X, Zhu Q, Zhang Q, Zhang Y, Ding C. A facile, simple, and inexpensive ionic liquid, 1-alkyl-3-methylimidazole chloride, as ligand for the iron(iii)-mediated reverse atom transfer radical polymerization of methyl methacrylate. RSC Adv 2017. [DOI: 10.1039/c6ra28136b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The facile, simple, and inexpensive ILs, 1-alkyl-3-methylimidazole chloride ([Rmim][Cl]), are explored for the first time as ligands for the reverse ATRP of methacrylates.
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Affiliation(s)
- Xiaohui Liu
- School of Materials Science and Engineering
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Qian Zhu
- School of Materials Science and Engineering
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Qiuyan Zhang
- School of Materials Science and Engineering
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Yanguang Zhang
- School of Materials Science and Engineering
- Tianjin Polytechnic University
- Tianjin 300387
- China
| | - Chen Ding
- School of Materials Science and Engineering
- Tianjin Polytechnic University
- Tianjin 300387
- China
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13
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Champagne E, Strandman S, Zhu XX. Recent Developments and Optimization of Lipase-Catalyzed Lactone Formation and Ring-Opening Polymerization. Macromol Rapid Commun 2016; 37:1986-2004. [DOI: 10.1002/marc.201600494] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/16/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Elyse Champagne
- Département de Chimie; Université de Montréal; C. P. 6128, Succursale Center-ville Montréal QC H3C 3J7 Canada
| | - Satu Strandman
- Département de Chimie; Université de Montréal; C. P. 6128, Succursale Center-ville Montréal QC H3C 3J7 Canada
| | - Xiao-Xia Zhu
- Département de Chimie; Université de Montréal; C. P. 6128, Succursale Center-ville Montréal QC H3C 3J7 Canada
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14
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Zhou H, Wang X, Tang J, Yang YW. Surface Immobilization of pH-Responsive Polymer Brushes on Mesoporous Silica Nanoparticles by Enzyme Mimetic Catalytic ATRP for Controlled Cargo Release. Polymers (Basel) 2016; 8:E277. [PMID: 30974554 PMCID: PMC6432388 DOI: 10.3390/polym8080277] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 07/12/2016] [Accepted: 07/26/2016] [Indexed: 11/16/2022] Open
Abstract
Peroxidase mimetic catalytic atom transfer radical polymerization (ATRP) was first used to install tertiary amine-functionalized polymer brushes on the surface of mesoporous silica nanoparticles (MSNs) in a facile and highly efficient manner. Poly(N,N-dimethylaminoethyl methacrylate) (PDMAEMA) brushes-grafted MSNs were fabricated by biocompatible deuterohemin-β-Ala-His-Thr-Val-Glu-Lys (DhHP-6)-catalyzed surface-initiated ATRP (SI-ATRP). The resulting organic⁻inorganic hybrid nanocarriers were fully characterized by Fourier transform-infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), powder X-ray diffraction (XRD), SEM, TEM, Elemental analysis, Zeta-potential, and N₂ adsorption⁻desorption isotherms, which demonstrated the successful coating of pH-responsive polymers on the MSN surface. Rhodamine 6G (Rh6G) dyes were further loaded within the mesopores of this nanocarrier, and the release of Rh6G out of MSNs in a controlled fashion was achieved upon lowing the solution pH. The electrostatic repulsion of positively-charged tertiary ammonium of PDMAEMAs in acidic environments induced the stretching out of polymer brushes on MSN surfaces, thus opening the gates to allow cargo diffusion out of the mesopores of MSNs.
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Affiliation(s)
- Hang Zhou
- College of Chemistry, International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), Jilin University, Changchun 130012, China.
| | - Xin Wang
- College of Chemistry, International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), Jilin University, Changchun 130012, China.
| | - Jun Tang
- College of Chemistry, International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), Jilin University, Changchun 130012, China.
| | - Ying-Wei Yang
- College of Chemistry, International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), Jilin University, Changchun 130012, China.
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15
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Pflughaupt RL, Hopkins SA, Wright PM, Dove AP. Synthesis of poly(ω-pentadecalactone)-b-poly(acrylate) diblock copolymers via a combination of enzymatic ring-opening and RAFT polymerization techniques. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28221] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Robin L. Pflughaupt
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
| | | | - Peter M. Wright
- Infineum UK Ltd; Milton Hill Abingdon OX13 6BB United Kingdom
| | - Andrew P. Dove
- Department of Chemistry; University of Warwick; Gibbet Hill Road Coventry CV4 7AL United Kingdom
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16
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Malinowska KH, Nash MA. Enzyme- and affinity biomolecule-mediated polymerization systems for biological signal amplification and cell screening. Curr Opin Biotechnol 2016; 39:68-75. [DOI: 10.1016/j.copbio.2016.01.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 01/23/2016] [Indexed: 11/28/2022]
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17
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Zavada SR, Battsengel T, Scott TF. Radical-Mediated Enzymatic Polymerizations. Int J Mol Sci 2016; 17:E195. [PMID: 26848652 PMCID: PMC4783929 DOI: 10.3390/ijms17020195] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 01/25/2016] [Accepted: 01/27/2016] [Indexed: 02/04/2023] Open
Abstract
Polymerization reactions are commonly effected by exposing monomer formulations to some initiation stimulus such as elevated temperature, light, or a chemical reactant. Increasingly, these polymerization reactions are mediated by enzymes--catalytic proteins--owing to their reaction efficiency under mild conditions as well as their environmental friendliness. The utilization of enzymes, particularly oxidases and peroxidases, for generating radicals via reduction-oxidation mechanisms is especially common for initiating radical-mediated polymerization reactions, including vinyl chain-growth polymerization, atom transfer radical polymerization, thiol-ene step-growth polymerization, and polymerization via oxidative coupling. While enzyme-mediated polymerization is useful for the production of materials intended for subsequent use, it is especially well-suited for in situ polymerizations, where the polymer is formed in the place where it will be utilized. Such polymerizations are especially useful for biomedical adhesives and for sensing applications.
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Affiliation(s)
- Scott R Zavada
- Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Tsatsral Battsengel
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Timothy F Scott
- Department of Chemical Engineering and Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, MI 48109, USA.
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18
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Zhao Z, Zhang J, Wang M, Wang Z, Wang L, Ma L, Huang X, Li Z. Structure advantage and peroxidase activity enhancement of deuterohemin-peptide–inorganic hybrid flowers. RSC Adv 2016. [DOI: 10.1039/c6ra24192a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hybridizing deuterohemin-peptide (DhHP-6) with copper phosphate to form hybrid flowers was prepared for preventing DhHP-6 aggregation.
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Affiliation(s)
- Zijian Zhao
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- PR China
- Key Laboratory for Molecular Enzymology
| | - Ji Zhang
- Key Laboratory for Molecular Enzymology
- Engineering of Ministry of Education
- College of Life Science
- Jilin University
- Changchun 130012
| | - Mingyang Wang
- National Engineering Laboratory for AIDS Vaccine
- College of Life Science
- Jilin University
- Changchun 130012
- PR China
| | - Zhi Wang
- Key Laboratory for Molecular Enzymology
- Engineering of Ministry of Education
- College of Life Science
- Jilin University
- Changchun 130012
| | - Liping Wang
- National Engineering Laboratory for AIDS Vaccine
- College of Life Science
- Jilin University
- Changchun 130012
- PR China
| | - Li Ma
- Key Laboratory for Molecular Enzymology
- Engineering of Ministry of Education
- College of Life Science
- Jilin University
- Changchun 130012
| | - Xuri Huang
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- PR China
| | - Zhengqiang Li
- Key Laboratory for Molecular Enzymology
- Engineering of Ministry of Education
- College of Life Science
- Jilin University
- Changchun 130012
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