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Shi Y, Hou W, Li Z, Chen Y. Tailoring the Architecture of Molecular Bottlebrushes via Click Grafting-Onto Strategy. Macromol Rapid Commun 2023; 44:e2300362. [PMID: 37625446 DOI: 10.1002/marc.202300362] [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: 06/21/2023] [Revised: 08/22/2023] [Indexed: 08/27/2023]
Abstract
Molecular bottlebrush (MBB) refer to a synthetic macromolecule, in which a mass of polymeric side chains (SCs) are covalently connected to a macromolecular backbone densely, representing an important type of unimolecular nanomaterial. The chemical composition, size, shape, and surface property of MBB can be precisely tailored by varying the backbones and SCs as well as the grafting density (Gdst ). Meanwhile, the topological structure of backbones and SCs can also significantly affect the chemical and physical properties of MBBs. For the past few years, by combining the structure features of MBB, the polymers with diverse architectures using MBB as building block are synthesized, including linear, branched, and cyclic MBB etc. These promising architectural features will bring MBBs with diverse architectures and lots of applications in advanced materials. For this reason, this work is interested in giving a briefly summary of the recent progress on tailor of well-defined MBBs with diverse architectures using grafting-onto strategy combined with controlled polymerization technique.
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Affiliation(s)
- Yi Shi
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Wangmeng Hou
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Zheqi Li
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Yongming Chen
- School of Materials Science and Engineering, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-Sen University, Guangzhou, 510006, China
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2
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Coudane J, Nottelet B, Mouton J, Garric X, Van Den Berghe H. Poly(ε-caprolactone)-Based Graft Copolymers: Synthesis Methods and Applications in the Biomedical Field: A Review. Molecules 2022; 27:7339. [PMID: 36364164 PMCID: PMC9653691 DOI: 10.3390/molecules27217339] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/18/2022] [Accepted: 10/26/2022] [Indexed: 09/24/2023] Open
Abstract
Synthetic biopolymers are attractive alternatives to biobased polymers, especially because they rarely induce an immune response in a living organism. Poly ε-caprolactone (PCL) is a well-known synthetic aliphatic polyester universally used for many applications, including biomedical and environmental ones. Unlike poly lactic acid (PLA), PCL has no chiral atoms, and it is impossible to play with the stereochemistry to modify its properties. To expand the range of applications for PCL, researchers have investigated the possibility of grafting polymer chains onto the PCL backbone. As the PCL backbone is not functionalized, it must be first functionalized in order to be able to graft reactive groups onto the PCL chain. These reactive groups will then allow the grafting of new reagents and especially new polymer chains. Grafting of polymer chains is mainly carried out by "grafting from" or "grafting onto" methods. In this review we describe the main structures of the graft copolymers produced, their different synthesis methods, and their main characteristics and applications, mainly in the biomedical field.
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Affiliation(s)
- Jean Coudane
- Department of Polymers for Health and Biomaterials, Institute of Biomolecules Max Mousseron, UMR 5247, University of Montpellier, CNRS, ENSCM, 34000 Montpellier, France
| | - Benjamin Nottelet
- Department of Polymers for Health and Biomaterials, Institute of Biomolecules Max Mousseron, UMR 5247, University of Montpellier, CNRS, ENSCM, 34000 Montpellier, France
| | - Julia Mouton
- Polymers Composites and Hybrids, IMT Mines d’Alès, 30100 Alès, France
- EPF Graduate School of Engineering, 34000 Montpellier, France
| | - Xavier Garric
- Department of Polymers for Health and Biomaterials, Institute of Biomolecules Max Mousseron, UMR 5247, University of Montpellier, CNRS, ENSCM, 34000 Montpellier, France
- Department of Pharmacy, Nîmes University Hospital, 30900 Nimes, France
| | - Hélène Van Den Berghe
- Department of Polymers for Health and Biomaterials, Institute of Biomolecules Max Mousseron, UMR 5247, University of Montpellier, CNRS, ENSCM, 34000 Montpellier, France
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3
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Fournier L, Rivera Mirabal DM, Hillmyer MA. Toward Sustainable Elastomers from the Grafting-Through Polymerization of Lactone-Containing Polyester Macromonomers. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02349] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Lucie Fournier
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | | | - Marc A. Hillmyer
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
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4
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Naito T, Kanazawa A, Aoshima S. Tandem polymerization consisting of cyclotrimerization and the Tishchenko reaction: synthesis of acid- and alkali-degradable polymers with cyclic acetal and ester structures in the main chain. Polym Chem 2022. [DOI: 10.1039/d2py01038k] [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
Tandem polymerization consisting of cyclotrimerization and the Tishchenko reaction was developed, which yielded acid- and alkali-degradable polymers.
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Affiliation(s)
- Tadashi Naito
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Arihiro Kanazawa
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Sadahito Aoshima
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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5
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Shahrokhinia A, Biswas P, Reuther JF. Orthogonal synthesis and modification of polymer materials. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210345] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ali Shahrokhinia
- Department of Chemistry University of Massachusetts Lowell Lowell Massachusetts USA
| | - Priyanka Biswas
- Department of Chemistry University of Massachusetts Lowell Lowell Massachusetts USA
| | - James F. Reuther
- Department of Chemistry University of Massachusetts Lowell Lowell Massachusetts USA
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6
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Baeyer-Villiger-Including Domino Two-Step Oxidations of β-O-Substituted Primary Alcohols: Reflection of the Migratory Aptitudes of O-Substituted Alkyl Group in the Outcome of the Reaction. Catalysts 2020. [DOI: 10.3390/catal10111275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Following the recent development of the one-pot two-step oxidation protocol for primary β-alkoxy alcohols, additional primary β-oxy alcohols were examined under similar conditions. The outcome of these reactions closely follows the migratory aptitudes of the related α-oxy-alkyls in Baeyer-Villiger oxidation vs. that of hydrogen. Thus, these experiments helped to establish the correct order of these aptitudes for α-oxy-alkyls. Furthermore, in the case of primary β,β-dialkoxyalcohols, the formation of dialkoxymethyl formates by the domino oxidation reaction was followed by secondary reactions, forming a number of interesting products.
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7
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Kashina AV, Meleshko TK, Bogorad NN, Bezrukova MA, Yakimanskii AV. Synthesis of Pentablock Copolymers of the Mixed Linear-Brush Topology by Controlled Radical Polymerization and Ring-Opening Polymerization Reactions. POLYMER SCIENCE SERIES C 2019. [DOI: 10.1134/s1811238219010090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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8
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Gao C, Tsou CH, Zeng CY, Yuan L, Peng R, Zhang XM. Organocatalyzed ring-opening copolymerization of α-bromo-γ-butyrolactone with ε-caprolactone for the synthesis of functional aliphatic polyesters - pre-polymers for graft copolymerization. Des Monomers Polym 2018; 21:193-201. [PMID: 30532666 PMCID: PMC6282472 DOI: 10.1080/15685551.2018.1550288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 10/28/2018] [Indexed: 12/31/2022] Open
Abstract
Diphenyl phosphate (DPP) was exploited as an organocatalyst to synthesize copolymers by ring-opening polymerization with α-bromo-γ-butyrolactone (αBrγBL) and ε-caprolactone (εCL) as monomers and polyethylene glycol (PEG) as initiator. The conversion rates of monomers and molecular weights of copolymers synthesized under different conditions were determined by 1H-NMR. The 1H-NMR results showed that the copolymers of αBrγBL and εCL initiated by PEG (PEGCB) were successfully synthesized and the conversions of εCL were relatively high (>70%), while the conversions of αBrγBL were relatively low (<26%). The highest molar ratio of αBrγBL to εCL units in these copolymers is 0.17, when the copolymerization was carried out at 100℃ for 17h. The bromine atoms hanged on the chain of the copolymers PEGCB provide a good opportunity to construct graft copolymers via atom transfer radical polymerization (ATRP). The subsequent grafting of 2-(dimethylamino)ethyl methacrylate (DMAEMA) was conducted by using PEGCB3 as macroinitiator, CuBr/N,N’,N’,N”,N”- pentamethyldiethylenetriamine (PMDETA) as catalysts and toluene/anisole as solvents via ATRP. According to the analysis of 1H-NMR, the grafting efficiency, grafting ratio and grafting frequency were 22.4%, 160.7% and 1133.8, respectively.
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Affiliation(s)
- Chen Gao
- College of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan Province, China.,Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong, Sichuan Province, China
| | - Chi-Hui Tsou
- College of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan Province, China.,Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong, Sichuan Province, China
| | - Chun-Yan Zeng
- College of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan Province, China.,Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong, Sichuan Province, China
| | - Li Yuan
- College of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan Province, China.,Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong, Sichuan Province, China
| | - Rui Peng
- College of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan Province, China
| | - Xue-Mei Zhang
- College of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan Province, China.,Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong, Sichuan Province, China
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9
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Becker G, Wurm FR. Functional biodegradable polymers via ring-opening polymerization of monomers without protective groups. Chem Soc Rev 2018; 47:7739-7782. [PMID: 30221267 DOI: 10.1039/c8cs00531a] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Biodegradable polymers are of current interest and chemical functionality in such materials is often demanded in advanced biomedical applications. Functional groups often are not tolerated in the polymerization process of ring-opening polymerization (ROP) and therefore protective groups need to be applied. Advantageously, several orthogonally reactive functions are available, which do not demand protection during ROP. We give an insight into available, orthogonally reactive cyclic monomers and the corresponding functional synthetic and biodegradable polymers, obtained from ROP. Functionalities in the monomer are reviewed, which are tolerated by ROP without further protection and allow further post-modification of the corresponding chemically functional polymers after polymerization. Synthetic concepts to these monomers are summarized in detail, preferably using precursor molecules. Post-modification strategies for the reported functionalities are presented and selected applications highlighted.
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Affiliation(s)
- Greta Becker
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
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10
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Amirmahani N, Mahmoodi NO, Mohammadi Galangash M, Ghavidast A. Advances in nanomicelles for sustained drug delivery. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.06.050] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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11
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Akman F, Duran A. Thermal degradation kinetics and density functional study of a macromonomer containing dual-lactone. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-2198-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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d'Arcy R, Burke J, Tirelli N. Branched polyesters: Preparative strategies and applications. Adv Drug Deliv Rev 2016; 107:60-81. [PMID: 27189232 DOI: 10.1016/j.addr.2016.05.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 04/19/2016] [Accepted: 05/06/2016] [Indexed: 10/21/2022]
Abstract
In the last 20years, the availability of precision chemical tools (e.g. controlled/living polymerizations, 'click' reactions) has determined a step change in the complexity of both the macromolecular architecture and the chemical functionality of biodegradable polyesters. A major part in this evolution has been played by the possibilities that controlled macromolecular branching offers in terms of tailored physical/biological performance. This review paper aims to provide an updated overview of preparative techniques that derive hyperbranched, dendritic, comb, grafted polyesters through polycondensation or ring-opening polymerization mechanisms.
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13
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Mecerreyes D, Huang E, Magbitang T, Volksen W, Hawker CJ, Lee VY, Miller RD, Hedrick JL. Application of Hyperbranched Block Copolymers as Templates for the Generation of Nanoporous Organosilicates. HIGH PERFORM POLYM 2016. [DOI: 10.1088/0954-0083/13/2/302] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A general route to organic–inorganic hybrids with nanophase morphologies has been elaborated with the objective of ultimately generating nanoporosity in organosilicates. Hyperbranched block copolymers prepared by either the sequential or concurrent polymerization of an ABC monomer ( γ-( ∊-caprolactone) 2-bromo-2-dimethylpropionate) with a BCD monomer (2-hydroxyethyl methacrylate) were used as the macromolecular templates. The two monomers, each polymerizing by different chemistries, for example ring-opening polymerization and atom transfer radical polymerization, bear initiating centres that are targeted for the functionality located on the accompanying monomer. Consequentially, a branched polymer is obtained which avoids the traditional multistep procedures. The branching density was altered simply by the addition of the appropriate AB ( ∊-caprolactone) and/or CD (methyl methacrylate) comonomers. These polymers were readily soluble initially in the organosilicate prepolymer (methyl silsesquioxane), however, upon the onset of crosslinking, both the solubility parameters and molecular weight of the organosilicate (polymethylsilsesquioxane) change, causing the hyperbranched polymer to phase separate by a nucleation and growth process. The organic polymer was selectively removed by thermolysis, producing a nanoporous inorganic structure. The size and shape of the pores are identical to those of the initial hybrid morphology. A significant reduction in the dielectric constant was achieved by simply replacing a portion of the glass matrix with air, which has a dielectric constant of 1.0.
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Affiliation(s)
| | | | | | | | | | | | | | - J L Hedrick
- IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, CA 95120, USA
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14
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Undin J, Olsén P, Godfrey J, Odelius K, Albertsson AC. Controlled copolymerization of the functional 5-membered lactone monomer, α-bromo-γ-butyrolactone, via selective organocatalysis. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.01.067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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Cheng Q, Du L, Meng L, Han S, Wei T, Wang X, Wu Y, Song X, Zhou J, Zheng S, Huang Y, Liang XJ, Cao H, Dong A, Liang Z. The Promising Nanocarrier for Doxorubicin and siRNA Co-delivery by PDMAEMA-based Amphiphilic Nanomicelles. ACS APPLIED MATERIALS & INTERFACES 2016; 8:4347-4356. [PMID: 26835788 DOI: 10.1021/acsami.5b11789] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Synergistic effects of anticancer drug and siRNA have displayed superior advantages for cancer therapy. Herein, we deeply analyzed the feasibility that whether doxorubicin (DOX) and siRNA could be co-delivered by mPEG-PCL-graft-PDMAEMA (PECD) micelles, which mediated excellent DNA/siRNA delivery in vitro and in vivo reported in our previous work. DOX-loaded NPs (PECD-D) were developed by nanoprecipitation technology and exhibited high drug loading content (DLC, 9.5%). In vitro cytotoxicity study in MDA-MB-231 cells, PECD-D treated groups had lower IC50 compared to free DOX groups (F-DOX) at different transfection time (24, 48, and 72h), which maybe attribute to its high cellular uptake and endosomal escape properties. The speculation was confirmed with the results of drug release profile in acidic media, flow cytometry analysis and confocal images. Futhermore, Cy5 labeled siRNA was introduced in PECD-D micelles (PECD-D/siRNA) to track the behavior of dual-loaded nanodrug in vitro and in vivo. Flow cytometry analysis presented that DOX and siRNA were successfully co-delivered into cells, the positive cells ratio were 94.6 and 99.5%, respectively. Confocal images showed that not only DOX and siRNA existed in cytoplasm, but DOX traversed endosome/lysosome and entered into cell nucleus. For in vivo tumor-targeting evaluation in BALB/c nude mice, both DOX and Cy5-siRNA could be detected in tumor sites after intravenous injection with PECD-D/siRNA formulation. Therefore, we believed that PECD micelles have a potential ability as DOX and siRNA co-delivery carrier for cancer therapy.
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Affiliation(s)
- Qiang Cheng
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University , Beijing 100871, China
| | - Lili Du
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University , Beijing 100871, China
| | - Lingwei Meng
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University , Beijing 100871, China
| | - Shangcong Han
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
| | - Tuo Wei
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China , Beijing 100190, China
| | - Xiaoxia Wang
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University , Beijing 100871, China
| | - Yidi Wu
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University , Beijing 100871, China
| | - Xinyun Song
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University , Beijing 100871, China
| | - Junhui Zhou
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
| | - Shuquan Zheng
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University , Beijing 100871, China
| | - Yuanyu Huang
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University , Beijing 100871, China
| | - Xing-jie Liang
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China , Beijing 100190, China
| | - Huiqing Cao
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University , Beijing 100871, China
| | - Anjie Dong
- Department of Polymer Science and Technology, Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, China
| | - Zicai Liang
- Laboratory of Nucleic Acid Technology, Institute of Molecular Medicine, Peking University , Beijing 100871, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300072, China
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16
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Bexis P, Thomas AW, Bell CA, Dove AP. Synthesis of degradable poly(ε-caprolactone)-based graft copolymers via a “grafting-from” approach. Polym Chem 2016. [DOI: 10.1039/c6py01674j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The controlled ring-opening polymerisation (ROP) of α-bromo-ε-caprolactone (αBrCL), a derivative of ε-caprolactone (εCL), and its copolymerisation with εCL is reported.
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Affiliation(s)
| | | | - Craig A. Bell
- Department of Chemistry
- University of Warwick
- Coventry
- UK
- Australian Institute for Bioengineering and Nanotechnology
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17
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Veccharelli KM, Tong VK, Young JL, Yang J, Gianneschi NC. Dual responsive polymeric nanoparticles prepared by direct functionalization of polylactic acid-based polymers via graft-from ring opening metathesis polymerization. Chem Commun (Camb) 2015; 52:567-70. [PMID: 26541981 DOI: 10.1039/c5cc07882b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Polylactic acid (PLA) has found widespread use in plastics and in biomedical applications due to its biodegradability into natural benign products. However, PLA-based materials remain limited in usefulness due to difficulty of incorporating functional groups into the polymer backbone. In this paper, we report a strategy for PLA functionalization that establishes the preparation of highly derivatized materials in which ring opening metathesis polymerization (ROMP) is employed as a graft-from polymerization technique utilizing a norbornene-modified handle incorporated into the PLA backbone. As a demonstration of this new synthetic methodology, a PLA-derived nanoparticle bearing imidazole units protected with a photolabile group was prepared. The morphology of this material could be controllably altered in response to exposure of UV light or acidic pH as a stimulus. We anticipate that this graft-from approach to derivatization of PLA could find broad use in the development of modified, biodegradable PLA-based materials.
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Affiliation(s)
- Kate M Veccharelli
- Department of Chemistry and Biochemistry, University of California, San Diego 9500 Gilman Drive, La Jolla, CA 92093, USA.
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18
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Maharana T, Pattanaik S, Routaray A, Nath N, Sutar AK. Synthesis and characterization of poly(lactic acid) based graft copolymers. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.05.006] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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19
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Long X, Zhang Z, Han S, Tang M, Zhou J, Zhang J, Xue Z, Li Y, Zhang R, Deng L, Dong A. Structural mediation on polycation nanoparticles by sulfadiazine to enhance DNA transfection efficiency and reduce toxicity. ACS APPLIED MATERIALS & INTERFACES 2015; 7:7542-7551. [PMID: 25801088 DOI: 10.1021/am508847j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Reducing the toxicity while maintaining high transfection efficiency is an important issue for cationic polymers as gene carriers in clinical application. In this paper, a new zwitterionic copolymer, polycaprolactone-g-poly(dimethylaminoethyl methyacrylate-co-sulfadiazine methacrylate) (PC-SDZ) with unique pH-sensitivity, was designed and prepared. The incorporation of sulfadiazine into poly(dimethylaminoethyl methacrylate) (PDMAEMA) chains successfully mediates the surface properties including compacter shell structure, lower density of positive charges, stronger proton buffer capability, and enhanced hydrophobicity, which lead to reduction in toxicity and enhancements in stability, cellular uptake, endosome escape, and transfection efficiency for the PC-SDZ2 nanoparticles (NPs)/DNA complexes. Excellent transfection efficiency at the optimal N/P ratio of 10 was observed for PC-SDZ2 NPs/DNA complexes, which was higher than that of the commercial reagent-branched polyethylenimine (PEI). The cytotoxicity was evaluated by CCK8 measurement, and the results showed significant reduction in cytotoxicity even at high concentration of complexes after sulfadiazine modification. Therefore, this work may demonstrate a new way of structural mediation of cationic polymer carriers for gene delivery with high efficiency and low toxicity.
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Affiliation(s)
- Xingwen Long
- †Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education; Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Zhihui Zhang
- ∥Research Center of Basic Medical Science and Department of Immunology, Basic Medical College; Key Laboratory of Immune Microenvironment and Diseases, Ministry of Education of China; Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Shangcong Han
- †Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education; Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Minjie Tang
- †Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education; Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Junhui Zhou
- †Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education; Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jianhua Zhang
- †Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education; Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Zhenyi Xue
- ∥Research Center of Basic Medical Science and Department of Immunology, Basic Medical College; Key Laboratory of Immune Microenvironment and Diseases, Ministry of Education of China; Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Yan Li
- ∥Research Center of Basic Medical Science and Department of Immunology, Basic Medical College; Key Laboratory of Immune Microenvironment and Diseases, Ministry of Education of China; Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Rongxin Zhang
- ∥Research Center of Basic Medical Science and Department of Immunology, Basic Medical College; Key Laboratory of Immune Microenvironment and Diseases, Ministry of Education of China; Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin 300070, China
| | - Liandong Deng
- †Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education; Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Anjie Dong
- †Department of Polymer Science and Technology and Key Laboratory of Systems Bioengineering of the Ministry of Education; Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- §Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
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20
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Ge X, Ye Q, Song L, Misra A, Spencer P. Visible-Light Initiated Free-Radical/Cationic Ring-Opening Hybrid Photopolymerization of Methacrylate/Epoxy: Polymerization Kinetics, Crosslinking Structure, and Dynamic Mechanical Properties. MACROMOL CHEM PHYS 2015; 216:856-872. [PMID: 28713208 PMCID: PMC5507371 DOI: 10.1002/macp.201400506] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The effects of polymerization kinetics and chemical miscibility on the crosslinking structure and mechanical properties of polymers cured by visible-light initiated free-radical/cationic ring-opening hybrid photopolymerization are determined. A three-component initiator system is used and the monomer system contains methacrylates and epoxides. The photopolymerization kinetics is monitored in situ by Fourier transform infrared-attenuated total reflectance. The crosslinking structure is studied by modulated differential scanning calorimetry and dynamic mechanical analysis. X-ray microcomputed tomography is used to evaluate microphase separation. The mechanical properties of polymers formed by hybrid formed by free-radical polymerization. These investigations mark the first time that the benefits of the chain transfer reaction between epoxy and hydroxyl groups of methacrylate, on the crosslinking network and microphase separation during hybrid visible-light initiated photopolymerization, have been determined.
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Affiliation(s)
- Xueping Ge
- Bioengineering Research Center, School of Engineering, University of Kansas, Lawrence 66045, KS, USA
| | - Qiang Ye
- Bioengineering Research Center, School of Engineering, University of Kansas, Lawrence 66045, KS, USA
| | - Linyong Song
- Bioengineering Research Center, School of Engineering, University of Kansas, Lawrence 66045, KS, USA
| | - Anil Misra
- Bioengineering Research Center, School of Engineering, University of Kansas, Lawrence 66045, KS, USA Department of Civil Engineering, University of Kansas, Lawrence 66045, KS, USA
| | - Paulette Spencer
- Bioengineering Research Center, School of Engineering, University of Kansas, Lawrence 66045, KS, USA Department of Mechanical Engineering, University of Kansas, Lawrence 66045, KS, USA
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21
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Effects of hydrophobic core components in amphiphilic PDMAEMA nanoparticles on siRNA delivery. Biomaterials 2015; 48:45-55. [PMID: 25701031 DOI: 10.1016/j.biomaterials.2015.01.026] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 12/29/2014] [Accepted: 01/20/2015] [Indexed: 12/13/2022]
Abstract
Due to their biodegradable character, polyesters such as polycaprolactone (PCL), poly(D,L-lactide) (PDLLA), and polylactic-co-glycolic acid (PLGA) were widely used as the hydrophobic cores of amphiphilic cationic nanoparticles (NPs) for siRNA delivery. However, fewer researches focused on facilitating siRNA delivery by adjusting the polyester composition of these nanoparticles. Herein, we investigated the contribution of polyester segments in siRNA delivery in vitro by introducing different ratio of DLLA moieties in PCL segments of mPEG-block-PCL-graft-poly(dimethylamino ethyl methacrylate)(PEG-b-PCL-g-PDMAEMA). It was noticed that compared with the other ratios of DLLA moieties, a certain molar ratio (about 70%) of the NPs, named mPEG45-P(CL21-co-DLLA48)-g-(PDMAEMA29)2 (PECLD-70), showed the highest gene knockdown efficiency but poorest cellular uptake ability in vitro. Further research revealed that NPs with various compositions of the polyester cores showed different physicochemical properties including particle size, zeta potential and stiffness, leading to different endocytosis mechanisms thus influencing the cellular uptake efficiency. Subsequently, we observed that the cells treated by PECLD-70 NPs/Cy5 siRNA complexes exhibited more diffuse Cy5 signal distribution than other NPs by confocal laser scanning microscope, which suggested that siRNA delivered by PECLD-70 NPs/Cy5 siRNA complexes possessed of stronger capabilities in escaping from endosome/lysosome, entering the RNA-induced silencing complex (RISC) and cutting the target mRNA efficiently. The different siRNA release profile was dominated by the degradation rate of polyester segments. Therefore, it could be concluded that the adjustment of hydrophobic core of cationic nanoparticles could significantly affect their transfection behavior and appropriate polyester composition should be concerned in designing of analogous siRNA vectors.
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22
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Li M, Pan P, Shan G, Bao Y. Thermoresponsive poly(ϵ-caprolactone)-graft-poly(N-isopropylacrylamide) graft copolymers prepared by a combination of ring-opening polymerization and sequential azide-alkyne click chemistry. POLYM INT 2014. [DOI: 10.1002/pi.4800] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Mingming Li
- State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering; Zhejiang University; 38 Zheda Road Hangzhou 310027 China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering; Zhejiang University; 38 Zheda Road Hangzhou 310027 China
| | - Guorong Shan
- State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering; Zhejiang University; 38 Zheda Road Hangzhou 310027 China
| | - Yongzhong Bao
- State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering; Zhejiang University; 38 Zheda Road Hangzhou 310027 China
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23
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Shi Y, Wang X, Graff RW, Phillip WA, Gao H. Synthesis of degradable molecular brushes via a combination of ring-opening polymerization and click chemistry. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27307] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yi Shi
- Department of Chemistry and Biochemistry; University of Notre Dame; Notre Dame Indiana 46556
| | - Xiaofeng Wang
- Department of Chemistry and Biochemistry; University of Notre Dame; Notre Dame Indiana 46556
| | - Robert W. Graff
- Department of Chemistry and Biochemistry; University of Notre Dame; Notre Dame Indiana 46556
| | - William A. Phillip
- Department of Chemical and Biomolecular Engineering; University of Notre Dame; Notre Dame Indiana 46556
| | - Haifeng Gao
- Department of Chemistry and Biochemistry; University of Notre Dame; Notre Dame Indiana 46556
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24
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Han S, Wan H, Lin D, Guo S, Dong H, Zhang J, Deng L, Liu R, Tang H, Dong A. Contribution of hydrophobic/hydrophilic modification on cationic chains of poly(ε-caprolactone)-graft-poly(dimethylamino ethylmethacrylate) amphiphilic co-polymer in gene delivery. Acta Biomater 2014; 10:670-9. [PMID: 24096149 DOI: 10.1016/j.actbio.2013.09.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2013] [Revised: 09/11/2013] [Accepted: 09/25/2013] [Indexed: 12/23/2022]
Abstract
Nanoparticles (NPs) assembled from amphiphilic polycations have been certified as potential carriers for gene delivery. Structural modification of polycation moieties may be an efficient route to further enhance gene delivery efficiency. In this study two electroneutral monomers with different hydrophobicities, 2-hydroxyethyl methacrylate (HEMA) and 2-hydroxyethyl acrylate (HEA), were incorporated into the cationic poly(dimethylamino ethyl methacrylate) (PDMAEMA) side-chains of amphiphilic poly(ε-caprolactone)-graft-poly(dimethylamino ethylmethacrylate) (PCD) by random co-polymerization, to obtain poly(ε-caprolactone)-graft-poly(dimethylamino ethyl methacrylate-co-2-hydroxyethyl methacrylate) (PCD-HEMA) and poly(ε-caprolactone)-graft-poly(dimethylamino ethyl methacrylate-co-2-hydroxyethyl acrylate) (PCD-HEA). Minimal HEA or HEMA moieties in PDMAEMA do not lead to statistically significant changes in particle size, zeta potential, DNA condensation properties and buffering capacity of the naked NPs. However, the incorporation of HEMA and HEA lead to reductions and increases, respectively, in the surface hydrophilicity of the naked NPs and NPs/DNA complexes, which was confirmed by water contact angle assay. These simple modifications of PDMAEMA with HEA and HEMA moieties significantly affect the gene transfection efficiency on HeLa cells in vitro: PCD-HEMA NP/DNA complexes show a much higher transfection efficiency than PCD NPs/DNA complexes, while PCD-HEA NPs/DNA complexes show a lower transfection efficiency than PCD NP/DNA complexes. Fluorescence activated cell sorter and confocal laser scanning microscope results indicate that the incorporation of hydrophobic HEMA moieties facilitates an enhancement in both cellular uptake and endosomal/lysosomal escape, leading to a higher transfection efficiency. Moreover, the process of endosomal/lysosomal escape confirmed in our research that PCD and its derivatives do not just rely on the proton sponge mechanism, but also on membrane damage due to the polycation chains, especially hydrophobic modified ones. Hence, it is proved that hydrophobic modification of cationic side-chains is a crucial route to improve gene transfection mediated by polycation NPs.
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25
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Tsujimoto Y, Satoh K, Sugimori H, Jinnai H, Kamigaito M. Synthesis of Titanium-Containing Block, Random, End-Functionalized, and Junction-Functionalized Polymers via Ruthenium-Catalyzed Living Radical Polymerization and Direct Observation of Titanium Domains by Electron Microscopy. Macromolecules 2014. [DOI: 10.1021/ma402332g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yasutaka Tsujimoto
- Department
of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Kotaro Satoh
- Department
of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Hidekazu Sugimori
- Department
of Macromolecular Science and Engineering, Graduate School of Science
and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
- KRI, Inc., 6-19-9 Torishima, Konohana-ku, Osaka 554-0051, Japan
| | - Hiroshi Jinnai
- Institute
for Materials Chemistry and Engineering (IMCE), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Japan
Science and Technology Agency, ERATO, Takahara Soft Interfaces Project,
CE80, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Masami Kamigaito
- Department
of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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26
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Ercole F, Rodda AE, Meagher L, Forsythe JS, Dove AP. Surface grafted poly(ε-caprolactone) prepared using organocatalysed ring-opening polymerisation followed by SI-ATRP. Polym Chem 2014. [DOI: 10.1039/c3py01701j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The controlled ring-opening polymerisation (ROP) of an ATRP initiator-containing lactone, γ-BMPCL, and its copolymerisation with ε-caprolactone is reported. One resulting copolymer was successfully used as a substrate for surface initiated ATRP to produce surface-grafted poly(oligo(ethylene glycol) methacrylate) brushes.
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Affiliation(s)
- Francesca Ercole
- Department of Materials Engineering
- Monash University
- Clayton
- Australia
| | - Andrew E. Rodda
- Department of Materials Engineering
- Monash University
- Clayton
- Australia
- CSIRO
| | - Laurence Meagher
- CSIRO
- Materials Science and Engineering
- Clayton
- Australia
- Cooperative Research Centre for Polymers (CRCP)
| | - John S. Forsythe
- Department of Materials Engineering
- Monash University
- Clayton
- Australia
| | - Andrew P. Dove
- Department of Materials Engineering
- Monash University
- Clayton
- Australia
- Department of Chemistry
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27
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28
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Nakatani K, Ogura Y, Koda Y, Terashima T, Sawamoto M. Sequence-regulated copolymers via tandem catalysis of living radical polymerization and in situ transesterification. J Am Chem Soc 2012; 134:4373-83. [PMID: 22296320 DOI: 10.1021/ja211436n] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Sequence regulation of monomers is undoubtedly a challenging issue as an ultimate goal in polymer science. To efficiently produce sequence-controlled copolymers, we herein developed the versatile tandem catalysis, which concurrently and/or sequentially involved ruthenium-catalyzed living radical polymerization and in situ transesterification of methacrylates (monomers: RMA) with metal alkoxides (catalysts) and alcohols (ROH). Typically, gradient copolymers were directly obtained from the synchronization of the two reactions: the instantaneous monomer composition in feed gradually changed via the transesterification of R(1)MA into R(2)MA in the presence of R(2)OH during living polymerization to give R(1)MA/R(2)MA gradient copolymers. The gradient sequence of monomers along a chain was catalytically controlled by the reaction conditions such as temperature, concentration and/or species of catalysts, alcohols, and monomers. The sequence regulation of multimonomer units was also successfully achieved in one-pot by monomer-selective transesterification in concurrent tandem catalysis and iterative tandem catalysis, providing random-gradient copolymers and gradient-block counterparts, respectively. In contrast, sequential tandem catalysis via the variable initiation of either polymerization or in situ transesterification led to random or block copolymers. Due to the versatile adaptability of common and commercially available reagents (monomers, alcohols, catalysts), this tandem catalysis is one of the most efficient, convenient, and powerful tools to design tailor-made sequence-regulated copolymers.
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Affiliation(s)
- Kazuhiro Nakatani
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Kyoto 615-8510, Japan
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29
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30
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Williams RJ, O'Reilly RK, Dove AP. Degradable graft copolymers by ring-opening and reverse addition–fragmentation chain transfer polymerization. Polym Chem 2012. [DOI: 10.1039/c2py20213a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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31
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Lin D, Huang Y, Jiang Q, Zhang W, Yue X, Guo S, Xiao P, Du Q, Xing J, Deng L, Liang Z, Dong A. Structural contributions of blocked or grafted poly(2-dimethylaminoethyl methacrylate) on PEGylated polycaprolactone nanoparticles in siRNA delivery. Biomaterials 2011; 32:8730-42. [PMID: 21885115 DOI: 10.1016/j.biomaterials.2011.07.089] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Accepted: 07/30/2011] [Indexed: 12/13/2022]
Abstract
The multiformity in polymer structure and conformation design provides a great potential in improving the gene silencing efficiency of siRNA by polymer vectors. In order to provide information on the polymer design for siRNA delivery, the structural contributions of blocked or grafted poly(2-dimethylaminoethyl methacrylate) on PEGylated polycaprolactone nanoparticles (NPs) in siRNA delivery were studied. Herein, two kinds of self-assembly nanoparticles (NPs) formed by amphiphilic cationic polymers, methoxy poly(ethylene glycol)-block-polycaprolactone-block-poly(2-dimethylaminoethyl methacrylate) (mPEG-PCL-b-PDMAEMA, PECbD) and methoxy poly(ethylene glycol)-block-(polycaprolactone-graft-poly(2-dimethylaminoethyl methacrylate)) (mPEG-PCL-g-PDMAEMA, PECgD), were used to deliver siRNA for in vitro and in vivo studies. The physiochemical properties including size and zeta potential of PECbD NPs/siRNA and PECgD NPs/siRNA complexes were characterized. In vitro cytotoxicity, cellular uptake and siRNA knockdown efficiency were evaluated in HeLa-Luc cells. The endosome escape and intracellular distribution of PECbD NPs/siRNA and PECgD NPs/siRNA in HeLa-Luc cells were also observed. In vivo polymer mediated siRNA delivery and the complexes distribution in isolated organs were studied using mice and tumor-bearing mice. At the same total degree of polymerization (DP) of DMAEMA, PECgD NPs/siRNA complexes possessed higher zeta potentials than PECbD NPs/siRNA complexes (at the same N/P ratio), which may be the reason that PECgD NPs/siRNA complexes can deliver more siRNA into the cytoplasm and lead to higher in vitro luciferase and lamin A/C silencing efficiency than PECbD NPs/siRNA complexes. The in vivo imaging measurement and histochemical analysis also confirmed that siRNA could be delivered to lungs, livers, pancreas and HeLa-Luc tumors more efficiently by PECgD NPs than PECbD NPs. Meanwhile, the PDMAEMA chains of PECgD could be shortened which provides benefits for clearing. Therefore, PECgD NPs have great potential to be used as efficient non-viral carriers for in vivo siRNA delivery.
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Affiliation(s)
- Daoshu Lin
- Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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32
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Chatterjee U, Wang X, Jewrajka SK, Soucek MD. Polyester/Poly(meth)acrylate Block Copolymers by Combined Polycondensation/ATRP: Characterization and Properties. MACROMOL CHEM PHYS 2011. [DOI: 10.1002/macp.201100083] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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33
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Synthesis of aromatic oxazolyl- and carboxyl-functionalized polymers: Atom transfer radical polymerization of styrene initiated by 2-[(4-bromomethyl)phenyl]-4,5-dihydro-4,4-dimethyloxazole. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24692] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Ohsawa S, Morino K, Sudo A, Endo T. Synthesis of a Reactive Polyester Bearing α,β-Unsaturated Ketone Groups by Anionic Alternating Copolymerization of Epoxide and Bicyclic Bis(γ-butyrolactone) Bearing Isopropenyl Group. Macromolecules 2011. [DOI: 10.1021/ma102602e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sousuke Ohsawa
- Molecular Engineering Institute, Kinki University, Kayanomori, Iizuka, Fukuoka 820-8555, Japan
| | - Kazuhide Morino
- Molecular Engineering Institute, Kinki University, Kayanomori, Iizuka, Fukuoka 820-8555, Japan
| | - Atsushi Sudo
- Molecular Engineering Institute, Kinki University, Kayanomori, Iizuka, Fukuoka 820-8555, Japan
| | - Takeshi Endo
- Molecular Engineering Institute, Kinki University, Kayanomori, Iizuka, Fukuoka 820-8555, Japan
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35
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Darcos V, Tabchi HA, Coudane J. Synthesis of PCL–graft–PS by combination of ROP, ATRP, and click chemistry. Eur Polym J 2011. [DOI: 10.1016/j.eurpolymj.2010.11.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Two-Dimensional Chromatographic Analysis of Polystyrene-block
-poly(methyl methacrylate) Copolymers Synthesized by Selective Oxidation of Polystrene-9-borabicyclo[3.3.1]nonane. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/masy.201000038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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37
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Hao J, Servello J, Sista P, Biewer MC, Stefan MC. Temperature-sensitive aliphatic polyesters: synthesis and characterization of γ-substituted caprolactone monomers and polymers. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11288k] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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Lecomte P, Jérôme C. Recent Developments in Ring-Opening Polymerization of Lactones. SYNTHETIC BIODEGRADABLE POLYMERS 2011. [DOI: 10.1007/12_2011_144] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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39
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Yan J, Ye Z, Luo H, Chen M, Zhou Y, Tan W, Xiao Y, Zhang Y, Lang M. Synthesis, characterization, fluorescence labeling and cellular internalization of novel amine-functionalized poly(ethylene glycol)-block-poly(ε-caprolactone) amphiphilic block copolymers. Polym Chem 2011. [DOI: 10.1039/c0py00391c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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40
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Yan J, Zhang Y, Xiao Y, Zhang Y, Lang M. Novel poly(ε-caprolactone)s bearing amino groups: Synthesis, characterization and biotinylation. REACT FUNCT POLYM 2010. [DOI: 10.1016/j.reactfunctpolym.2010.03.008] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Guo S, Wang W, Deng L, Xing J, Dong A. Poly(ε-caprolactone)-graft-poly(2-(dimethylamino)ethyl methacrylate) Amphiphilic Copolymers Prepared via a Combination of ROP and ATRP: Synthesis, Characterization, and Self-Assembly Behavior. MACROMOL CHEM PHYS 2010. [DOI: 10.1002/macp.201000103] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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42
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Guo S, Qiao Y, Wang W, Xing J, Deng L, Dong A, Xu J. Synthesis and properties of Polycaprolactone-graft-poly(2-(dimethylamino)ethyl methacrylate-co-methoxy polyethylene glycol monomethacrylate) as non-viral gene vector. POLYM ADVAN TECHNOL 2010. [DOI: 10.1002/pat.1694] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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43
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Wang Y, Lu L, Wang H, Lu D, Tao K, Bai R. A Facile Strategy for Preparation of α-Heterobifunctional Polystyrenes with Well-Defined Molecular Weight. Macromol Rapid Commun 2009; 30:1922-7. [PMID: 21638476 DOI: 10.1002/marc.200900454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Indexed: 11/09/2022]
Abstract
A facile strategy for synthesis of α-heterobifunctional polystyrenes is reported. The novel functional polystyrenes have been successfully synthesized via a combination of atom transfer radical polymerization (ATRP) and chemical modification of end-functional groups. First, ε-caprolactone end-capped polystyrenes with controlled molecular weight and low polydispersity were prepared by ATRP of styrene using α-bromo-ε-caprolactone (αBrCL) as an initiator. Then, removal of the terminal bromine atom was performed with iso-propylbenzene in the presence of CuBr/PMDETA. Finally, ring-opening modifications of the caprolactone group were carried out with amines, n-butanol and H(2) O to produce novel polystyrenes containing two different functional groups at one end.
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Affiliation(s)
- Yun Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, People's Republic of China
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44
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Nottelet B, Darcos V, Coudane J. Polyiodized-PCL as multisite transfer agent: Towards an enlarged library of degradable graft copolymers. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23553] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Veld MAJ, Palmans ARA, Meijer EW. Selective polymerization of functional monomers with Novozym 435. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.22350] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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46
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47
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Lu JM, Xu QF, Yuan X, Xia XW, Zhai JX, Wang LH. Synthesis, characterization, and fluorescence of end-functionalized polystyrene initiated by 4-chloromethyl benzoic acid and ethyl 4-chloromethyl benzenecarboxylate via ATRP. J Appl Polym Sci 2007. [DOI: 10.1002/app.25516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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48
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49
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50
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Patton DL, Advincula RC. A Versatile Synthetic Route to Macromonomers via RAFT Polymerization. Macromolecules 2006. [DOI: 10.1021/ma061382h] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Derek L. Patton
- Department of Chemistry and Department of Chemical Engineering, University of Houston, Houston, Texas 77204-5003
| | - Rigoberto C. Advincula
- Department of Chemistry and Department of Chemical Engineering, University of Houston, Houston, Texas 77204-5003
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