1
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Yang HZ, Zhang J, Guo Y, Pu L, Yu XQ. A Fluorescent Self-Reporting Vector with GSH Reduction Responsiveness for Nucleic Acid Delivery. ACS APPLIED BIO MATERIALS 2021; 4:5717-5726. [PMID: 35006755 DOI: 10.1021/acsabm.1c00484] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nonviral gene vectors with stimulus responsiveness and self-reporting properties have broad application prospects in gene therapy. Herein, we developed a nanosized reduction-responsive cationic liposomal vector formed from DNS(Zn), in which a naphthalimide-sulfonamide group was used as the glutathione (GSH)-responsive group to generate a blue fluorescence signal at 458 nm. Macrocyclic polyamine (cyclen) was used as a cationic headgroup to facilitate Zn(II) coordination, which may reduce the cytotoxicity and improve transfection efficiency. The Zn-free and nonresponsive analogues were used for comparison. Fluorescent assays revealed that the GSH response of DNS(Zn) could increase the blue fluorescence signal and improve the DNA release in cells. The title material also showed higher positive ζ-potential than its nonresponsive analogue, resulting in stronger DNA binding ability and better cellular uptake. These advantages made DNS(Zn) a good candidate for nonviral gene delivery, and the transfection efficiency in HeLa cells was distinctly higher than that of its analogue and the commercially available transfection reagent. Besides plasmid DNA, DNS(Zn) could also deliver small interfering RNA (siRNA) with good gene silencing efficiency, extending the application of the liposomes. These results suggest that DNS(Zn) can serve as a highly efficient nucleic acid delivery vector with reduction-responsive fluorescence self-reporting ability in tumor cells.
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Affiliation(s)
- Hui-Zhen Yang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Ji Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Yu Guo
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China
| | - Lin Pu
- Department of Chemistry, University of Virginia, McCormick Road, Charlottesville, Virginia 22904, United States
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, People's Republic of China.,Department of Chemistry, Xihua University, Chengdu 610039, People's Republic of China
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2
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Zhao RM, Guo Y, Yang HZ, Zhang J, Yu XQ. Zn-Promoted gene transfection efficiency for non-viral vectors: a mechanism study. NEW J CHEM 2021. [DOI: 10.1039/d1nj02115j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Mechanism studies revealed that a Zn coordination to cyclen-based cationic polymer may effectively improve the buffering capacity and endosomal escape ability.
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Affiliation(s)
- Rui-Mo Zhao
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Yu Guo
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Hui-Zhen Yang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Ji Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education)
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
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3
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Zhang JH, He X, Xiao YP, Zhang J, Wu XR, Yu XQ. Cationic Heteropolymers with Various Functional Groups as Efficient and Biocompatible Nonviral Gene Vectors. ACS APPLIED BIO MATERIALS 2020; 3:3526-3534. [DOI: 10.1021/acsabm.0c00118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ju-Hui Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xi He
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Ya-Ping Xiao
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Ji Zhang
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiao-Ru Wu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
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4
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Rajak A, Karan CK, Theato P, Das A. Supramolecularly cross-linked amphiphilic block copolymer assembly by the dipolar interaction of a merocyanine dye. Polym Chem 2020. [DOI: 10.1039/c9py01492f] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Dipolar interaction driven dimerization of a merocyanine (MC) dye has been exploited to achieve non-covalently crosslinked stable micelles in water and reverse micelles in toluene with emissive properties from a MC-pendant amphiphilic block copolymer.
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Affiliation(s)
- Aritra Rajak
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
| | - Chandan Kumar Karan
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
| | - Patrick Theato
- Institute for Chemical Technology and Polymer Chemistry
- Karlsruhe Institute of Technology (KIT)
- D-76131 Karlsruhe
- Germany
- Soft Matter Synthesis Laboratory
| | - Anindita Das
- School of Applied and Interdisciplinary Sciences
- Indian Association for the Cultivation of Science
- Kolkata-700032
- India
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5
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Zuppolini S, Maya IC, Diodato L, Guarino V, Borriello A, Ambrosio L. Self-associating cellulose-graft-poly(ε-caprolactone) to design nanoparticles for drug release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 108:110385. [PMID: 31923967 DOI: 10.1016/j.msec.2019.110385] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/19/2019] [Accepted: 10/30/2019] [Indexed: 01/08/2023]
Abstract
The growing interest in the use of polysaccharides nanoparticles for biomedical applications is related to the recent progresses on the synthesis of cellulose-based polymers with the specific functionalities. In particular, cellulose graft copolymers are emerging as amphiphilic materials suitable to fabricate smart nanoparticles for drug delivery applications. In this work, a cellulose-graft-poly(ε-caprolactone) (cell-g-PCL) was synthetized and characterized by FTIR, TGA and DSC in order to validate the synthesis process. We demonstrated that fast evaporation processes promoted cell-g-PCL self-assembly to form nanomicellar structures with hydrodynamic radius ranged from 30 to 60 nm as confirmed by TEM analysis. Moreover, the application of controlled electrostatic forces on solvent evaporation - namely electrospraying - allowed generating round-like nanoscaled particles, as confirmed by SEM supported via image analysis. We demonstrated also that sodium diclofenac (DS) drastically influenced the mechanism of particle formation, favoring the deposition of erythrocyte-like particles with highly concave surfaces, not penalizing the encapsulation efficiency of nanoparticles (>80%). The release profile showed a fast delivery of DS - about 60% during the first 24 h - followed by a sustained release - about 20% during the next 6 days - strictly related to the peculiar weak interactions among amphiphilic polymer segments and water molecules, thus suggesting a successful use of electrosprayed cell-g-PCL nanoparticles for therapeutic treatments in nanomedicine.
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Affiliation(s)
- Simona Zuppolini
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy
| | - Iriczalli Cruz Maya
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy
| | - Laura Diodato
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy.
| | - Anna Borriello
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy.
| | - Luigi Ambrosio
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, V.le J.F. Kennedy 54, 80125, Naples, Italy
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6
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Kargaard A, Sluijter JPG, Klumperman B. Polymeric siRNA gene delivery - transfection efficiency versus cytotoxicity. J Control Release 2019; 316:263-291. [PMID: 31689462 DOI: 10.1016/j.jconrel.2019.10.046] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 10/23/2019] [Accepted: 10/23/2019] [Indexed: 12/13/2022]
Abstract
Within the field of gene therapy, there is a considerable need for the development of non-viral vectors that are able to compete with the efficiency obtained by viral vectors, while maintaining a good toxicity profile and not inducing an immune response within the body. While there have been many reports of possible polymeric delivery systems, few of these systems have been successful in the clinical setting due to toxicity, systemic instability or gene regulation inefficiency, predominantly due to poor endosomal escape and cytoplasmic release. The objective of this review is to provide an overview of previously published polymeric non-coding RNA and, to a lesser degree, oligo-DNA delivery systems with emphasis on their positive and negative attributes, in order to provide insight in the numerous hurdles that still limit the success of gene therapy.
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Affiliation(s)
- Anna Kargaard
- Stellenbosch University, Department of Chemistry and Polymer Science, Private Bag X1, Matieland 7602, South Africa; University Medical Center Utrecht, Experimental Cardiology Laboratory, Department of Cardiology, Division of Heart and Lungs, P.O. Box 85500, 3508 GA, Utrecht, the Netherlands
| | - Joost P G Sluijter
- University Medical Center Utrecht, Experimental Cardiology Laboratory, Department of Cardiology, Division of Heart and Lungs, P.O. Box 85500, 3508 GA, Utrecht, the Netherlands; Utrecht University, the Netherlands
| | - Bert Klumperman
- Stellenbosch University, Department of Chemistry and Polymer Science, Private Bag X1, Matieland 7602, South Africa.
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7
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He X, Chen P, Zhang J, Luo TY, Wang HJ, Liu YH, Yu XQ. Cationic polymer-derived carbon dots for enhanced gene delivery and cell imaging. Biomater Sci 2019; 7:1940-1948. [PMID: 30785129 DOI: 10.1039/c8bm01578c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Carbon dots have attracted rapidly growing interest in recent years. In this report, we prepared two cationic polymer-derived carbon dots (Taea-CD and Cyclen-CD, collectively called C-dots) via a hydrothermal method. Transmission electron microscopy (TEM) results show that the C-dots were sphere-like and the size distribution was 1.8 ± 0.4 nm for Taea-CD and 5.4 ± 2 nm for Cyclen-CD. The C-dots emitted bright blue fluorescence under UV light (365 nm). Confocal laser scanning microscopy (CLSM) assay indicates that the C-dots-mediated transfection process could be detected in real time, and their tunable fluorescence emission under different wavelengths could satisfy varying requirements. Luciferase assay indicates that the transformation from the polymer to CD is an effective strategy to improve the transfection efficiency (TE) of the materials. Moreover, the C-dots also exhibit higher serum tolerance and cell viability than commercially available polyethyleneimine (PEI). These results demonstrate that the preparation of carbon dots from polymers is a promising method for developing multifunctional gene vectors with high TE and biocompatibility.
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Affiliation(s)
- Xi He
- Key Laboratory of Green Chemistry and Technology (Ministry of Education), College of Chemistry, Sichuan University, Chengdu 610064, P. R. China.
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8
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Lejault P, Duskova K, Bernhard C, Valverde IE, Romieu A, Monchaud D. The Scope of Application of Macrocyclic Polyamines Beyond Metal Chelation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900870] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Pauline Lejault
- CNRS UMR6302, Université Bourgogne Franche-Comté (UBFC); Institut de Chimie Moleculaire de l'Université de Bourgogne (ICMUB); 9, Avenue Alain Savary 21078 Dijon France
| | - Katerina Duskova
- CNRS UMR6302, Université Bourgogne Franche-Comté (UBFC); Institut de Chimie Moleculaire de l'Université de Bourgogne (ICMUB); 9, Avenue Alain Savary 21078 Dijon France
| | - Claire Bernhard
- CNRS UMR6302, Université Bourgogne Franche-Comté (UBFC); Institut de Chimie Moleculaire de l'Université de Bourgogne (ICMUB); 9, Avenue Alain Savary 21078 Dijon France
| | - Ibai E. Valverde
- CNRS UMR6302, Université Bourgogne Franche-Comté (UBFC); Institut de Chimie Moleculaire de l'Université de Bourgogne (ICMUB); 9, Avenue Alain Savary 21078 Dijon France
| | - Anthony Romieu
- CNRS UMR6302, Université Bourgogne Franche-Comté (UBFC); Institut de Chimie Moleculaire de l'Université de Bourgogne (ICMUB); 9, Avenue Alain Savary 21078 Dijon France
| | - David Monchaud
- CNRS UMR6302, Université Bourgogne Franche-Comté (UBFC); Institut de Chimie Moleculaire de l'Université de Bourgogne (ICMUB); 9, Avenue Alain Savary 21078 Dijon France
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9
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Xie D, Du J, Bao M, Zhou A, Tian C, Xue L, Ju C, Shen J, Zhang C. A one-pot modular assembly strategy for triple-play enhanced cytosolic siRNA delivery. Biomater Sci 2019; 7:901-913. [PMID: 30575823 DOI: 10.1039/c8bm01454j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Robust efficiency for cytosolic small interfering RNA (siRNA) delivery is of great importance for effective gene therapy. To significantly improve the cytosolic siRNA delivery, a "one-pot modular assembly" strategy is developed to assemble a triple-play enhanced cytosolic siRNA delivery system via a facile and innocuous copper-free click reaction. Specifically, three modules are prepared including octreotide for receptor-mediated endocytosis, a cell-penetrating peptide (CPP) for cell penetration, and glutamic acid for the charge-reversal property. All three modules with distinct facilitating endocytosis effects are expediently assembled on the surface of the siRNA/liposome complex to fabricate a multifunctional integrated siRNA delivery system (OCA-CC). OCA-CC has been demonstrated to have enhanced cytosolic delivery and superior gene-silencing efficiency in multiple tumor cells due to the combined effects of all the three modules. High levels of survivin-silencing are also achieved by OCA-CC on orthotopic human breast cancer (MCF-7)-bearing mice accompanied by significant tumor inhibition. This research provides a facile strategy to produce safe and tunable siRNA delivery systems for effective gene therapy and to facilitate the development of multifunctional siRNA vectors.
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Affiliation(s)
- Daping Xie
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Advanced Pharmaceuticals and Biomaterials, China Pharmaceutical University, Nanjing, 210009, P. R. China.
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10
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Ou Y, Chen K, Cai H, Zhang H, Gong Q, Wang J, Chen W, Luo K. Enzyme/pH-sensitive polyHPMA-DOX conjugate as a biocompatible and efficient anticancer agent. Biomater Sci 2018; 6:1177-1188. [PMID: 29564431 DOI: 10.1039/c8bm00095f] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this study, to enhance the therapeutic function and reduce the side-effects of doxorubicin (DOX), a biodegradable N-(2-hydroxypropyl) methacrylamide (HPMA) polymer-DOX conjugate has been prepared through reversible addition fragmentation chain transfer (RAFT) polymerization and conjugation chemistry, and the anticancer agent DOX was covalently linked to the polymeric vehicle through a pH-responsive hydrazone bond. The cellular mechanisms of the conjugate were explored, and the therapeutic indexes were studied as well. The high molecular weight (MW) polymeric conjugate (94 kDa) was degraded into products with low MW (45 kDa) in the presence of lysosomal cathepsin B and also showed pH-responsive drug release behavior. In vitro cellular mechanism studies revealed that the polymeric conjugate was uptaken by the 4T1 cells, leading to cell apoptosis and cytotoxicity to cancer cells, while the polymeric conjugate demonstrated excellent in vivo biosafety even at a high dose. Compared to free DOX, the conjugate has a much longer half-life in pharmacokinetics and accumulates in tumors with a much higher amount. The conjugate therefore has a much greater in vivo anticancer efficacy against 4T1 xenograft tumors and shows subtle side-effects, which were confirmed via tumor size and weight, immunohistochemistry and histological studies. Overall, this polymeric conjugate may be used as an enzyme/pH-sensitive anticancer agent.
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Affiliation(s)
- Yuan Ou
- Department of Radiology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China. and Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kai Chen
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hao Cai
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hu Zhang
- School of Chemical Engineering, The University of Adelaide, SA 5005, Australia
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jian Wang
- Department of Radiology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China.
| | - Wei Chen
- Department of Radiology, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, 400038, China.
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Sichuan University, Chengdu 610041, China
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11
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Yang Q, Li G, Xia H, Liu Z, Liu Z, Jiang J. Controlling CO 2 -Responsive Behaviors of Polymersomes Self-Assembled by Coumarin-Containing Star Polymer via Regulating Its Crosslinking Pattern. Macromol Rapid Commun 2018; 39:e1800009. [PMID: 29708286 DOI: 10.1002/marc.201800009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 03/17/2018] [Indexed: 01/02/2023]
Abstract
An oligo(ethylene glycol)-based star polymer of N2 -(OEG-C)3 with fluorescent coumarin as hydrophobic end groups and dual tertiary amines as the star center is designed and synthesized. Owing to its amphiphilic nature of N2 -(OEG-C)3 , it will self-assemble into hollow vesicles with coumarin groups dispersed in the hydrophobic membrane and exhibits CO2 -responsive behavior due to the protonation of amine centers with CO2 . More importantly, coumarin moieties can either form non-crosslinking with γ-cyclodextrin via the 2/1 host-guest inclusion, or covalently photodimerized by 365 nm light, offering a tunable crosslinking pattern in the hydrophobic membrane and thus adjusting its CO2 -stimulated reorganization and disassembly behaviors of these vesicles in aqueous solution.
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Affiliation(s)
- Qi Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, Shaanxi Province, P. R. China
| | - Guo Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, Shaanxi Province, P. R. China
| | - Hesheng Xia
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu, 610000, Sichuan Province, P. R. China
| | - Zhaotie Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, Shaanxi Province, P. R. China
| | - Zhongwen Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, Shaanxi Province, P. R. China
| | - Jinqiang Jiang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062, Shaanxi Province, P. R. China
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12
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Xu FJ. Versatile types of hydroxyl-rich polycationic systems via O-heterocyclic ring-opening reactions: From strategic design to nucleic acid delivery applications. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2017.09.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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