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Vanslambrouck S, Riva R, Ucakar B, Préat V, Gagliardi M, Molin DGM, Lecomte P, Jérôme C. Thiol-ene Reaction: An Efficient Tool to Design Lipophilic Polyphosphoesters for Drug Delivery Systems. Molecules 2021; 26:1750. [PMID: 33804768 PMCID: PMC8003835 DOI: 10.3390/molecules26061750] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 11/18/2022] Open
Abstract
Poly(ethylene glycol)-b-polyphosphoester (PEG-b-PPE) block copolymer nanoparticles are promising carriers for poorly water soluble drugs. To enhance the drug loading capacity and efficiency of such micelles, a strategy was investigated for increasing the lipophilicity of the PPE block of these PEG-b-PPE amphiphilic copolymers. A PEG-b-PPE copolymer bearing pendant vinyl groups along the PPE block was synthesized and then modified by thiol-ene click reaction with thiols bearing either a long linear alkyl chain (dodecyl) or a tocopherol moiety. Ketoconazole was used as model for hydrophobic drugs. Comparison of the drug loading with PEG-b-PPE bearing shorter pendant groups is reported evidencing the key role of the structure of the pendant group on the PPE backbone. Finally, a first evidence of the biocompatibility of these novel PEG-b-PPE copolymers was achieved by performing cytotoxicity tests. The PEG-b-PPE derived by tocopherol was evidenced as particularly promising as delivery system of poorly water-soluble drugs.
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Affiliation(s)
- Stéphanie Vanslambrouck
- Center for Education and Research on Macromolecules (CERM), CESAM Research-Unit, University of Liège, Allée du 6 août 13, B6a, Sart-Tilman, 4000 Liège, Belgium; (S.V.); (R.R.); (P.L.)
| | - Raphaël Riva
- Center for Education and Research on Macromolecules (CERM), CESAM Research-Unit, University of Liège, Allée du 6 août 13, B6a, Sart-Tilman, 4000 Liège, Belgium; (S.V.); (R.R.); (P.L.)
| | - Bernard Ucakar
- Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université Catholique de Louvain, Avenue Mounier, 73, B1.73.12, 1200 Brussels, Belgium; (B.U.); (V.P.)
| | - Véronique Préat
- Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, Université Catholique de Louvain, Avenue Mounier, 73, B1.73.12, 1200 Brussels, Belgium; (B.U.); (V.P.)
| | - Mick Gagliardi
- Department of Physiology, Faculty of Health, Medicine and Life Science, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands; (M.G.); (D.G.M.M.)
| | - Daniel G. M. Molin
- Department of Physiology, Faculty of Health, Medicine and Life Science, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands; (M.G.); (D.G.M.M.)
| | - Philippe Lecomte
- Center for Education and Research on Macromolecules (CERM), CESAM Research-Unit, University of Liège, Allée du 6 août 13, B6a, Sart-Tilman, 4000 Liège, Belgium; (S.V.); (R.R.); (P.L.)
| | - Christine Jérôme
- Center for Education and Research on Macromolecules (CERM), CESAM Research-Unit, University of Liège, Allée du 6 août 13, B6a, Sart-Tilman, 4000 Liège, Belgium; (S.V.); (R.R.); (P.L.)
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Olmedo-Martínez JL, Meabe L, Riva R, Guzmán-González G, Porcarelli L, Forsyth M, Mugica A, Calafel I, Müller AJ, Lecomte P, Jérôme C, Mecerreyes D. Flame retardant polyphosphoester copolymers as solid polymer electrolyte for lithium batteries. Polym Chem 2021. [DOI: 10.1039/d1py00344e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Solid-state lithium batteries are considered one of the most promising battery systems due to their high volumetric energy density, in this work a flame retarded polymer electrolyte is proposed.
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Riva R, Shah U, Thomassin JM, Yilmaz Z, Lecat A, Colige A, Jérôme C. Design of Degradable Polyphosphoester Networks with Tailor-Made Stiffness and Hydrophilicity as Scaffolds for Tissue Engineering. Biomacromolecules 2019; 21:349-355. [PMID: 31687811 DOI: 10.1021/acs.biomac.9b01276] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In the recent decades, biodegradable and biocompatible polyphosphoesters (PPEs) have gained wide attention in the biomedical field as relevant substitutes for conventional aliphatic polyesters. These amorphous materials of low glass transition temperature offer promise for the design of soft scaffolds for tissue engineering. Advantageously, the easy variation of the nature of the lateral pendant groups of PPEs allows the insertion of pendent unsaturations valuable for their further cross-linking. In addition, varying the length of the pendent alkyl chains allows tuning their hydrophilicity. The present work aims at synthesizing PPE networks of well-defined hydrophilicity and mechanical properties. More precisely, we aimed at preparing degradable materials exhibiting identical hydrophilicity but different mechanical properties and vice versa. For that purpose, PPE copolymers were synthesized by ring-opening copolymerization of cyclic phosphate monomers bearing different pendent groups (e.g., methyl, butenyl, and butyl). After UV irradiation, a stable and well-defined cross-linked material is obtained with the mechanical property of the corresponding polymer films controlled by the composition of the starting PPE copolymer. The results demonstrate that cross-linking density could be correlated with the mechanical properties, swelling behavior, and degradation rate of the polymers network. The polymers were compatible to human skin fibroblast cells and did not exhibit significant cytotoxicity up to 0.5 mg mL-1. In addition, degradation products appeared nontoxic to skin fibroblast cells and showed their potential as promising scaffolds for tissue engineering.
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Affiliation(s)
- Raphaël Riva
- Centre for Education and Research on Macromolecules (CERM), CESAM Research Unit , University of Liege (ULiège) , Building B6a , 4000 Liège , Belgium
| | - Urmil Shah
- Centre for Education and Research on Macromolecules (CERM), CESAM Research Unit , University of Liege (ULiège) , Building B6a , 4000 Liège , Belgium
| | - Jean-Michel Thomassin
- Centre for Education and Research on Macromolecules (CERM), CESAM Research Unit , University of Liege (ULiège) , Building B6a , 4000 Liège , Belgium
| | - Zeynep Yilmaz
- Centre for Education and Research on Macromolecules (CERM), CESAM Research Unit , University of Liege (ULiège) , Building B6a , 4000 Liège , Belgium
| | - Aurore Lecat
- GIGA/Cancer-Connective Tissue Biology , University of Liege (ULiège) , Building B23 120 , 4000 Liège , Belgium
| | - Alain Colige
- GIGA/Cancer-Connective Tissue Biology , University of Liege (ULiège) , Building B23 120 , 4000 Liège , Belgium
| | - Christine Jérôme
- Centre for Education and Research on Macromolecules (CERM), CESAM Research Unit , University of Liege (ULiège) , Building B6a , 4000 Liège , Belgium
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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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Yilmaz ZE, Jérôme C. Polyphosphoesters: New Trends in Synthesis and Drug Delivery Applications. Macromol Biosci 2016; 16:1745-1761. [PMID: 27654308 DOI: 10.1002/mabi.201600269] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/18/2016] [Indexed: 11/06/2022]
Abstract
Polymers with repeating phosphoester linkages in the backbone are biodegradable materials that emerge as a promising class of novel biomaterials, especially in the field of drug delivery systems. In contrast to aliphatic polyesters, the pentavalency of the phosphorus atom offers a large diversity of structures and as a consequence a wide range of properties for these materials. In this paper, it is focused on the synthesis of well-defined polyphosphoesters (PPEs) by organocatalyzed ring-opening polymerization, improving the functionalities by combination with click reactions, degradation of functional PPEs and their cytotoxicity, and inputs for applications in drug delivery.
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Affiliation(s)
- Zeynep Ergul Yilmaz
- Center for Education and Research on Macromolecules (CERM), University of Liège (ULg), CESAM-RU, Sart Tilman, Building B6a, Liège, B-4000, Belgium
| | - Christine Jérôme
- Center for Education and Research on Macromolecules (CERM), University of Liège (ULg), CESAM-RU, Sart Tilman, Building B6a, Liège, B-4000, Belgium
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Yilmaz ZE, Vanslambrouck S, Cajot S, Thiry J, Debuigne A, Lecomte P, Jérôme C, Riva R. Core cross-linked micelles of polyphosphoester containing amphiphilic block copolymers as drug nanocarriers. RSC Adv 2016. [DOI: 10.1039/c6ra07422g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Poly(ethylene oxide)-b-polyphosphoester bearing unsaturations are promising materials for drug delivery applications.
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Affiliation(s)
- Z. Ergul Yilmaz
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - S. Vanslambrouck
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - S. Cajot
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - J. Thiry
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - A. Debuigne
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - P. Lecomte
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - C. Jérôme
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
| | - R. Riva
- Center for Education and Research on Macromolecules (CERM)
- University of Liège
- Chemistry Department
- B-4000 Liège
- Belgium
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Zeynep EY, Antoine D, Brice C, Frank B, Christine J. Double hydrophilic polyphosphoester containing copolymers as efficient templating agents for calcium carbonate microparticles. J Mater Chem B 2015; 3:7227-7236. [PMID: 32262830 DOI: 10.1039/c5tb00887e] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The use of calcium carbonate (CaCO3) microparticles is becoming more and more attractive in many fields especially in biomedical applications in which the fine tuning of the size, morphology and crystalline form of the CaCO3 particles is crucial. Although some structuring compounds, like hyaluronic acid, give satisfying results, the control of the particle structure still has to be improved. To this end, we evaluated the CaCO3 structuring capacity of novel well-defined double hydrophilic block copolymers composed of poly(ethylene oxide) and a polyphosphoester segment with an affinity for calcium like poly(phosphotriester)s bearing pendent carboxylic acids or poly(phosphodiester)s with a negatively charged oxygen atom on each repeating monomer unit. These copolymers were synthesized by a combination of organocatalyzed ring opening polymerization, thiol-yne click chemistry and protection/deprotection methods. The formulation of CaCO3 particles was then performed in the presence of these block copolymers (i) by the classical chemical pathway involving CaCl2 and Na2CO3 and (ii) by a process based on supercritical carbon dioxide (scCO2) technology in which CO3 2- ions are generated in aqueous media and react with Ca2+ ions. Porous CaCO3 microspheres composed of vaterite nanocrystals were obtained. Moreover, a clear dependence of the particle size on the structure of the templating agent was emphasized. In this work, we show that the use of the supercritical process and the substitution of hyaluronic acid for a carboxylic acid containing copolymer decreases the size of the CaCO3 particles by a factor of 6 (∼1.5 μm) while preventing their aggregation.
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Affiliation(s)
- Ergul Yilmaz Zeynep
- Chemistry Department, Center for Education and Research on Macromolecules (CERM), University of Liège (ULg), Sart Tilman, Building B6a-third floor, Liège, B-4000, Belgium.
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Li Z, Ma X, Zang D, Guan X, Zhu L, Liu J, Chen F. Interfacial rheology and aggregation behaviour of amphiphilic CBABC-type pentablock copolymers at the air–water interface: effects of block ratio and chain length. RSC Adv 2015. [DOI: 10.1039/c5ra08109b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The interfacial rheology, aggregation behaviour and packing model of the structure evolution of three amphiphilic CBABC-type pentablock copolymers were investigated at the air–water interface.
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Affiliation(s)
- Zhiguang Li
- Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi’an 710129
| | - Xiaoyan Ma
- Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi’an 710129
| | - Duyang Zang
- Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi’an 710129
| | - Xinghua Guan
- Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi’an 710129
| | - Lin Zhu
- Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi’an 710129
| | - Jinshu Liu
- Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi’an 710129
| | - Fang Chen
- Key Laboratory of Space Applied Physics and Chemistry
- Ministry of Education
- School of Science
- Northwestern Polytechnical University
- Xi’an 710129
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