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Moraes RM, Carvalho LT, Alves GM, Medeiros SF, Bourgeat-Lami E, Santos AM. Synthesis and Self-Assembly of Poly( N-Vinylcaprolactam)- b-Poly(ε-Caprolactone) Block Copolymers via the Combination of RAFT/MADIX and Ring-Opening Polymerizations. Polymers (Basel) 2020; 12:polym12061252. [PMID: 32486145 PMCID: PMC7362203 DOI: 10.3390/polym12061252] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/25/2020] [Accepted: 05/28/2020] [Indexed: 02/06/2023] Open
Abstract
Well-defined amphiphilic, biocompatible and partially biodegradable, thermo-responsive poly(N-vinylcaprolactam)-b-poly(ε-caprolactone) (PNVCL-b-PCL) block copolymers were synthesized by combining reversible addition-fragmentation chain transfer (RAFT) and ring-opening polymerizations (ROP). Poly(N-vinylcaprolactam) containing xanthate and hydroxyl end groups (X–PNVCL–OH) was first synthesized by RAFT/macromolecular design by the interchange of xanthates (RAFT/MADIX) polymerization of NVCL mediated by a chain transfer agent containing a hydroxyl function. The xanthate-end group was then removed from PNVCL by a radical-induced process. Finally, the hydroxyl end-capped PNVCL homopolymer was used as a macroinitiator in the ROP of ε-caprolactone (ε-CL) to obtain PNVCL-b-PCL block copolymers. These (co)polymers were characterized by Size Exclusion Chromatography (SEC), Fourier-Transform Infrared spectroscopy (FTIR), Proton Nuclear Magnetic Resonance spectroscopy (1H NMR), UV–vis and Differential Scanning Calorimetry (DSC) measurements. The critical micelle concentration (CMC) of the block copolymers in aqueous solution measured by the fluorescence probe technique decreased with increasing the length of the hydrophobic block. However, dynamic light scattering (DLS) demonstrated that the size of the micelles increased with increasing the proportion of hydrophobic segments. The morphology observed by cryo-TEM demonstrated that the micelles have a pointed-oval-shape. UV–vis and DLS analyses showed that these block copolymers have a temperature-responsive behavior with a lower critical solution temperature (LCST) that could be tuned by varying the block copolymer composition.
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Affiliation(s)
- Rodolfo M. Moraes
- Laboratory of Polymers, Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, EEL-USP, Estrada Municipal do Campinho, s/n, P.O. Box 116, Lorena SP 12602-810, Brazil; (R.M.M.); (L.T.C.); (G.M.A.); (S.F.M.)
| | - Layde T. Carvalho
- Laboratory of Polymers, Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, EEL-USP, Estrada Municipal do Campinho, s/n, P.O. Box 116, Lorena SP 12602-810, Brazil; (R.M.M.); (L.T.C.); (G.M.A.); (S.F.M.)
| | - Gizelda M. Alves
- Laboratory of Polymers, Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, EEL-USP, Estrada Municipal do Campinho, s/n, P.O. Box 116, Lorena SP 12602-810, Brazil; (R.M.M.); (L.T.C.); (G.M.A.); (S.F.M.)
| | - Simone F. Medeiros
- Laboratory of Polymers, Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, EEL-USP, Estrada Municipal do Campinho, s/n, P.O. Box 116, Lorena SP 12602-810, Brazil; (R.M.M.); (L.T.C.); (G.M.A.); (S.F.M.)
| | - Elodie Bourgeat-Lami
- Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS UMR 5265, Chemistry, Catalysis, Polymers and Processes (C2P2), 43 Bvd. du 11 Novembre 1918, F-69616 Villeurbanne, France
- Correspondence: (E.B.-L.); (A.M.S.)
| | - Amilton M. Santos
- Laboratory of Polymers, Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, EEL-USP, Estrada Municipal do Campinho, s/n, P.O. Box 116, Lorena SP 12602-810, Brazil; (R.M.M.); (L.T.C.); (G.M.A.); (S.F.M.)
- Correspondence: (E.B.-L.); (A.M.S.)
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Wang J, Li S, Chen T, Xian W, Zhang H, Wu L, Zhu W, Zeng Q. Nanoscale cationic micelles of amphiphilic copolymers based on star-shaped PLGA and PEI cross-linked PEG for protein delivery application. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:93. [PMID: 31392433 DOI: 10.1007/s10856-019-6294-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 07/26/2019] [Indexed: 06/10/2023]
Abstract
To enhance the bioavailability of protein therapeutants and improve the stability of storage and delivery, a series of branched amphiphilic block copolymers consisting of cholic acid (CA) initiated poly(D,L-lactide-co-glycolide) (CA-PLGA) and water-soluble polyethyleneimine cross-linked polyethylene glycol (PEI-PEG) denoted as CA-PLGA-b-(PEI-PEG) were synthesized and characterized. CA-PLGA-b-(PEI-PEG) presented low cytotoxicity by MTT and cck-8 assay. The cationic CA-PLGA-b-(PEI-PEG) micelles (diameter about 100 nm and zeta potential 34-61 mV) were prepared through self-assembly method, and complexed with insulin via electrostatic interaction to obtain nanoscale micelle/insulin complexes. The micelle/insulin complexes-loaded CA-PLGA microspheres (MIC-MS, 10.4 ± 3.85 μm) were manufactured by employing a double emulsion (W1/O/W2) method. The in vitro insulin release behavior and in vivo hypoglycaemic effect of MIC-MS on streptozotocin (STZ) induced diabetic rats were compared with those of the insulin-loaded CA-PLGA microspheres (INS-MS, 7.8 ± 2.57 μm). The initial burst in vitro release of MIC-MS was markedly lower than that of INS-MS (P < 0.01), and the pharmacological availability of MIC-MS via subcutaneous administration was 148.9% relative to INS-MS. Therefore, the cationic CA-PLGA-b-(PEI-PEG) micelles can effectively increase the bioavailability of insulin in CA-PLGA microspheres and can be considered as a potential protein carrier.
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Affiliation(s)
- Jun Wang
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Shunying Li
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Tingting Chen
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wenjiao Xian
- Department of Histology and Embryology, School of Basic Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Huiwu Zhang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Cancer Therapeutics & Drug Discovery Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Lei Wu
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Wenting Zhu
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Qingbing Zeng
- Biomaterials Research Center, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
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Bauer KN, Tee HT, Velencoso MM, Wurm FR. Main-chain poly(phosphoester)s: History, syntheses, degradation, bio-and flame-retardant applications. Prog Polym Sci 2017. [DOI: 10.1016/j.progpolymsci.2017.05.004] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Zhang X, Wang H, Dai Y. Interlayer-crosslinked micelles prepared from star-shaped copolymers via click chemistry for sustained drug release. NANOTECHNOLOGY 2017; 28:205601. [PMID: 28429685 DOI: 10.1088/1361-6528/aa6907] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
To balance the stability and the particle size of polymeric micelles, star-shaped copolymers Hx-yne-N3-PEG containing both alkynyl and azido groups were synthesized from hyperbranched 2,2-bismethylolpropionic acid polyester (H20 with 16 hydroxyl, H30 with 32 hydroxyl, H40 with 64 hydroxyl) to develop interlayer-crosslinked micelles by click chemistry. The results of dynamic light scattering indicate that the crosslinking could enhance the stability of polymeric micelles. The crosslinked micelles are regular nanosized (approximately 20 nm) spheres observed by a transmission electron microscope. The crosslinked micelles have better drug loading capacity and more sustained drug release behavior than the un-crosslinked micelles.
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Affiliation(s)
- Xiaojin Zhang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, People's Republic of China
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Zhang L, Shi D, Shi C, Dong L, Li X, Chen M. Controllable Synthesis of Multiarm Star-Shaped Copolymers Composed of Phosphoester Chains and Their Application on Drug Delivery. Macromol Biosci 2017; 17. [DOI: 10.1002/mabi.201600522] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/21/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Li Zhang
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi Jiangsu 214122 China
| | - Dongjian Shi
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi Jiangsu 214122 China
| | - Chunling Shi
- School of Chemistry and Chemical Engineering; Xuzhou Institute of Technology; Xuzhou Jiangsu 221111 China
| | - Liangliang Dong
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi Jiangsu 214122 China
| | - Xiaojie Li
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi Jiangsu 214122 China
| | - Mingqing Chen
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi Jiangsu 214122 China
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Wu Q, Yi J, Wang S, Liu D, Song X, Zhang G. Synthesis and self-assembly of new amphiphilic thermosensitive poly(N-vinylcaprolactam)/poly(d,l-lactide) block copolymers via the combination of ring-opening polymerization and click chemistry. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1348-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Synthesis and characterization of four- and six-arm star-shaped poly(ε-caprolactone)-b-poly(N-vinylcaprolactam): Micellar and core degradation studies. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.01.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Huang J, Wang X, Wang G. Synthesis and characterization of copolymers with the same proportions of polystyrene and poly(ethylene oxide) compositions but different connection sequence by the efficient Williamson reaction. POLYM INT 2015. [DOI: 10.1002/pi.4891] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jian Huang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science; Fudan University; Shanghai 200433 China
| | - Xuepu Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science; Fudan University; Shanghai 200433 China
| | - Guowei Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science; Fudan University; Shanghai 200433 China
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Zhang Y, Chen M, Luo X, Zhang H, Liu C, Li H, Li X. Tuning multiple arms for camptothecin and folate conjugations on star-shaped copolymers to enhance glutathione-mediated intracellular drug delivery. Polym Chem 2015. [DOI: 10.1039/c4py01607f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multiarmed amphiphilic copolymers with drug conjugated were developed, and the composition and structure of the star-shaped miktoarms show significant effects on micelle behavior and antitumor activities.
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Affiliation(s)
- Yun Zhang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education of China
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Maohua Chen
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education of China
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Xiaoming Luo
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education of China
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Hong Zhang
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education of China
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Chaoyu Liu
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education of China
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Huiyan Li
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education of China
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Xiaohong Li
- Key Laboratory of Advanced Technologies of Materials
- Ministry of Education of China
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
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Wu Q, Zhou D, Kang R, Tang X, Yang Q, Song X, Zhang G. Synthesis and Self-Assembly of Thermoresponsive Amphiphilic Biodegradable Polypeptide/Poly(ethyl ethylene phosphate) Block Copolymers. Chem Asian J 2014; 9:2850-8. [DOI: 10.1002/asia.201402524] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Indexed: 12/13/2022]
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Hu G, Fan X, Xu B, Zhang D, Hu Z. Facile synthesis and characterization of novel biodegradable amphiphilic block copolymers bearing pendant hydroxyl groups. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 43:207-13. [PMID: 25175206 DOI: 10.1016/j.msec.2014.07.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 06/04/2014] [Accepted: 07/03/2014] [Indexed: 10/25/2022]
Abstract
Novel amphiphilic block copolymers bearing pendant hydroxyl groups polylactide-b-poly(3,3-bis(Hydroxymethyl-triazolylmethyl) oxetane)-b-polylactide (PLA-b-PHMTYO-b-PLA) were synthesized via a facile and efficient method. First, the block copolymer intermediates polylactide-b-poly(3,3-Diazidomethyloxetane)-b-polylactide (PLA-b-PBAMO-b-PLA) were synthesized through ring-opening polymerization of lactide using PBAMO as a macroinitiator. Following "Click" reaction of PLA-b-PBAMO-b-PLA with propargyl alcohol provided the targeted amphiphilic block copolymers PLA-b-PHMTYO-b-PLA with pendant hydroxyl groups. The composition and structure of prepared copolymers were characterized by (1)H nuclear magnetic resonance ((1)H NMR) spectroscopy, Fourier transform infrared (FT-IR) and gel permeation chromatography (GPC). The self-assembly behavior of the copolymers in water was investigated by transmission electron microscope (TEM), dynamic light scattering (DLS) and static light scattering (SLS). The results showed that the novel copolymers PLA-b-PHMTYO-b-PLA self-assembled into spherical micelles with diameters ranging from 100 nm to 200 nm in aqueous solution. These copolymers also exhibited low critical micellar concentrations (CMC: 6.9 × 10(-4)mg/mL and 3.9 × 10(-5)mg/mL, respectively). In addition, the in vitro cytotoxicity of these copolymers was determined in the presence of L929 cells. The results showed that the block copolymers PLA-b-PHMTYO-b-PLA exhibited better biocompatibility. Therefore, these well-defined copolymers are expected to find some applications in drug delivery or tissue engineering.
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Affiliation(s)
- Gaicen Hu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Xiaoshan Fan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Bingcan Xu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Delong Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China
| | - Zhiguo Hu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, PR China.
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Wu Q, Wang L, Fu X, Song X, Yang Q, Zhang G. Synthesis and self-assembly of a new amphiphilic thermosensitive poly(N-vinylcaprolactam)/poly(ε-caprolactone) block copolymer. Polym Bull (Berl) 2013. [DOI: 10.1007/s00289-013-1041-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Cholic acid-functionalized nanoparticles of star-shaped PLGA-vitamin E TPGS copolymer for docetaxel delivery to cervical cancer. Biomaterials 2013; 34:6058-67. [DOI: 10.1016/j.biomaterials.2013.04.052] [Citation(s) in RCA: 222] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 04/07/2013] [Indexed: 01/12/2023]
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