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Yilmaz D, Du Fraysseix M, Lewandowski S, Perraud S, Ibarboure E, Llevot A, Carlotti S. Self-Healing Transparent Poly(dimethyl)siloxane with Tunable Mechanical Properties: Toward Enhanced Aging Materials for Space Applications. ACS Appl Mater Interfaces 2024. [PMID: 38613485 DOI: 10.1021/acsami.4c02431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/15/2024]
Abstract
When exposed to the geostationary orbit, polymeric materials tend to degrade on their surface due to the appearance of cracks. Implementing the self-healing concept in polymers going to space is a new approach to enhancing the lifespan of materials that cannot be replaced once launched. In this study, the elaboration of autonomous self-healing transparent poly(dimethylsiloxane) (PDMS) materials resistant to proton particles is presented. The PDMS materials are functionalized with various compositions of urea and imine moieties, forming dynamic covalent and/or supramolecular networks. The hydrogen bonds induced by the urea ensure the formation of a supramolecular network, while the dynamic covalent imine bonds are capable of undergoing exchange reactions. Materials with a broad range of mechanical properties were obtained depending on the composition and structure of the PDMS networks. As coating applications in a spatial environment were mainly targeted, the surface properties of the polymer are essential. Thus, percentages of scratch recovery were determined by AFM. From these data, self-healing kinetics were extracted and rationalized based on the polymer structures. The obtained data were in good agreement with the relaxation times determined by rheology in stress relaxation experiments. Moreover, the accelerated aging of materials under proton irradiation, simulating a major part of the geostationary environment, revealed a strong limitation or disappearance of cracks while keeping the transparency of the PDMS. These promising results open routes to prepare new flexible autonomous polymeric materials for space applications.
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Affiliation(s)
- Dijwar Yilmaz
- ONERA/DPHY, Université de Toulouse, F31055 Toulouse, France
- CNES─French Aerospace Agency, 18 avenue Edouard Belin,F-31401 Toulouse Cedex 9, France
- CNRS, Bordeaux INP, LCPO, UMR 5629, University of Bordeaux, F-33600 Pessac,France
| | - Mickaël Du Fraysseix
- ONERA/DPHY, Université de Toulouse, F31055 Toulouse, France
- CNES─French Aerospace Agency, 18 avenue Edouard Belin,F-31401 Toulouse Cedex 9, France
- CNRS, Bordeaux INP, LCPO, UMR 5629, University of Bordeaux, F-33600 Pessac,France
| | | | - Sophie Perraud
- CNES─French Aerospace Agency, 18 avenue Edouard Belin,F-31401 Toulouse Cedex 9, France
| | - Emmanuel Ibarboure
- CNRS, Bordeaux INP, LCPO, UMR 5629, University of Bordeaux, F-33600 Pessac,France
| | - Audrey Llevot
- CNRS, Bordeaux INP, LCPO, UMR 5629, University of Bordeaux, F-33600 Pessac,France
| | - Stéphane Carlotti
- CNRS, Bordeaux INP, LCPO, UMR 5629, University of Bordeaux, F-33600 Pessac,France
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2
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Grazon C, Garanger E, Lalanne P, Ibarboure E, Galagan JE, Grinstaff MW, Lecommandoux S. Transcription-Factor-Induced Aggregation of Biomimetic Oligonucleotide- b-Protein Micelles. Biomacromolecules 2023; 24:5027-5034. [PMID: 37877162 DOI: 10.1021/acs.biomac.3c00662] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Polymeric micelles and especially those based on natural diblocks are of particular interest due to their advantageous properties in terms of molecular recognition, biocompatibility, and biodegradability. We herein report a facile and straightforward synthesis of thermoresponsive elastin-like polypeptide (ELP) and oligonucleotide (ON) diblock bioconjugates, ON-b-ELP, through copper-catalyzed azide-alkyne cycloaddition. The resulting thermosensitive diblock copolymer self-assembles above its critical micelle temperature (CMT ∼30 °C) to form colloidally stable micelles of ∼50 nm diameter. The ON-b-ELP micelles hybridize with an ON complementary strand and maintain their size and stability. Next, we describe the capacity of these micelles to bind proteins, creating more complex structures using the classic biotin-streptavidin pairing and the specific recognition between a transcription factor protein and the ON strand. In both instances, the micelles are intact, form larger structures, and retain their sensitivity to temperature.
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Affiliation(s)
- Chloé Grazon
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, Talence F-33400, France
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac F-33600, France
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
| | - Elisabeth Garanger
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac F-33600, France
| | - Pierre Lalanne
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac F-33600, France
| | - Emmanuel Ibarboure
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac F-33600, France
| | - James E Galagan
- Department of Microbiology, Boston University, Boston, Massachusetts 02118, United States
| | - Mark W Grinstaff
- Department of Chemistry, Boston University, Boston, Massachusetts 02215, United States
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
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3
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Schvartzman C, Zhao H, Ibarboure E, Ibrahimova V, Garanger E, Lecommandoux S. Control of Enzyme Reactivity in Response to Osmotic Pressure Modulation Mimicking Dynamic Assembly of Intracellular Organelles. Adv Mater 2023; 35:e2301856. [PMID: 37149761 DOI: 10.1002/adma.202301856] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/17/2023] [Indexed: 05/08/2023]
Abstract
In response to variations in osmotic stress, in particular to hypertonicity associated with biological dysregulations, cells have developed complex mechanisms to release their excess water, thus avoiding their bursting and death. When water is expelled, cells shrink and concentrate their internal bio(macro)molecular content, inducing the formation of membraneless organelles following a liquid-liquid phase separation (LLPS) mechanism. To mimic this intrinsic property of cells, functional thermo-responsive elastin-like polypeptide (ELP) biomacromolecular conjugates are herein encapsulated into self-assembled lipid vesicles using a microfluidic system, together with polyethylene glycol (PEG) to mimic cells' interior crowded microenvironment. By inducing a hypertonic shock onto the vesicles, expelled water induces a local increase in concentration and a concomitant decrease in the cloud point temperature (Tcp ) of ELP bioconjugates that phase separate and form coacervates mimicking cellular stress-induced membraneless organelle assemblies. Horseradish peroxidase (HRP), as a model enzyme, is bioconjugated to ELPs and is locally confined in coacervates as a response to osmotic stress. This consequently increases local HRP and substrate concentrations and accelerates the kinetics of the enzymatic reaction. These results illustrate a unique way to fine-tune enzymatic reactions dynamically as a response to a physiological change in isothermal conditions.
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Affiliation(s)
- Clémence Schvartzman
- Centre national de la recherche scientifique, University of Bordeaux, Bordeaux INP, LCPO, UMR 5629, Pessac, F-33600, France
| | - Hang Zhao
- Centre national de la recherche scientifique, University of Bordeaux, Bordeaux INP, LCPO, UMR 5629, Pessac, F-33600, France
| | - Emmanuel Ibarboure
- Centre national de la recherche scientifique, University of Bordeaux, Bordeaux INP, LCPO, UMR 5629, Pessac, F-33600, France
| | - Vusala Ibrahimova
- Centre national de la recherche scientifique, University of Bordeaux, Bordeaux INP, LCPO, UMR 5629, Pessac, F-33600, France
| | - Elisabeth Garanger
- Centre national de la recherche scientifique, University of Bordeaux, Bordeaux INP, LCPO, UMR 5629, Pessac, F-33600, France
| | - Sébastien Lecommandoux
- Centre national de la recherche scientifique, University of Bordeaux, Bordeaux INP, LCPO, UMR 5629, Pessac, F-33600, France
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4
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Phan HT, Passos Gibson V, Guédin A, Ibarboure E, El Mammeri N, Grélard A, Le Meins JF, Dufourc EJ, Loquet A, Giasson S, Leblond Chain J. Switchable Lipids: From Conformational Switch to Macroscopic Changes in Lipid Vesicles. Langmuir 2023; 39:3072-3082. [PMID: 36793207 DOI: 10.1021/acs.langmuir.2c03149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
It has been shown that the use of conformationally pH-switchable lipids can drastically enhance the cytosolic drug delivery of lipid vesicles. Understanding the process by which the pH-switchable lipids disturb the lipid assembly of nanoparticles and trigger the cargo release is crucial to optimize the rational design of pH-switchable lipids. Here, we gather morphological observations (FF-SEM, Cryo-TEM, AFM, confocal microscopy), physicochemical characterization (DLS, ELS), as well as phase behavior studies (DSC, 2H NMR, Langmuir isotherm, and MAS NMR) to propose a mechanism of pH-triggered membrane destabilization. We demonstrate that the switchable lipids are homogeneously incorporated with other co-lipids (DSPC, cholesterol, and DSPE-PEG2000) and promote a liquid-ordered phase insensitive to temperature variation. Upon acidification, the protonation of the switchable lipids triggers a conformational switch altering the self-assembly properties of lipid nanoparticles. These modifications do not lead to a phase separation of the lipid membrane; however, they cause fluctuations and local defects, which result in morphological changes of the lipid vesicles. These changes are proposed to affect the permeability of vesicle membrane, triggering the release of the cargo encapsulated in the lipid vesicles (LVs). Our results confirm that pH-triggered release does not require major morphological changes, but can result from small defects affecting the lipid membrane permeability.
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Affiliation(s)
- Huu Trong Phan
- Faculty of Pharmacy, University of Montreal, Montréal H3C 3J7, Canada
| | | | - Aurore Guédin
- University of Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, Bordeaux F-33000 France
| | - Emmanuel Ibarboure
- Laboratoire de Chimie des Polymères Organiques LCPO Université de Bordeaux CNRS Bordeaux INP UMR 5629, Pessac F-33600, France
| | - Nadia El Mammeri
- Institut de Chimie et de Biologie des Membranes et des Nano-objets, Institut Européen de Chimie et Biologie, CNRS, UMR 5248, Université de Bordeaux, Pessac F-33600, France
| | - Axelle Grélard
- Institut de Chimie et de Biologie des Membranes et des Nano-objets, Institut Européen de Chimie et Biologie, CNRS, UMR 5248, Université de Bordeaux, Pessac F-33600, France
| | - Jean-François Le Meins
- Laboratoire de Chimie des Polymères Organiques LCPO Université de Bordeaux CNRS Bordeaux INP UMR 5629, Pessac F-33600, France
| | - Erick J Dufourc
- Institut de Chimie et de Biologie des Membranes et des Nano-objets, Institut Européen de Chimie et Biologie, CNRS, UMR 5248, Université de Bordeaux, Pessac F-33600, France
| | - Antoine Loquet
- Institut de Chimie et de Biologie des Membranes et des Nano-objets, Institut Européen de Chimie et Biologie, CNRS, UMR 5248, Université de Bordeaux, Pessac F-33600, France
| | - Suzanne Giasson
- Faculty of Pharmacy, University of Montreal, Montréal H3C 3J7, Canada
- Department of Chemistry, University of Montreal, Montréal H3C 3J7, Canada
| | - Jeanne Leblond Chain
- University of Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212, Bordeaux F-33000 France
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5
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Argudo PG, Spitzer L, Ibarboure E, Jerome F, Cramail H, Lecommandoux S. Mannose-based surfactant as biofunctional nanoemulsion stabilizer. Colloids Surf B Biointerfaces 2022; 220:112877. [PMID: 36174495 DOI: 10.1016/j.colsurfb.2022.112877] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/06/2022] [Accepted: 09/23/2022] [Indexed: 10/14/2022]
Abstract
The development and implementation of new amphiphiles based on natural resources rather than petrochemical precursors is an essential requirement due to their feedstock depletion and adverse environmental impacts. In addition, the use of bio-based surfactants can provide unique characteristics and improve the properties and versatility of the colloidal systems in which they are applied, such as emulsions. Here, the emulsification properties of a synthesized biocompatible mannose-based surfactant were investigated. Its behavior was evaluated in the presence of four different natural oils (castor, sunflower, olive and soybean) as well as two different aqueous phases (pure water and phosphate-buffered saline). The results highlighted its interest as surfactant in O/W nanoemulsions for all tested oil and aqueous phases, using a low-energy preparation protocol and relatively low surfactant concentrations. Furthermore, the mannose groups present on the polar head of the surfactant and adsorbed on the surface of the emulsion droplets were shown to retain their native biological properties. The specific mannose-concanavalin A binding was observed in vitro by the designed nanoemulsions, revealing the biorecognition properties of the surfactant and its potential applicability as a nanocarrier.
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Affiliation(s)
- Pablo G Argudo
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, 16 Avenue Pey-Berland, 33600 Pessac, France.
| | - Lea Spitzer
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, 16 Avenue Pey-Berland, 33600 Pessac, France; Institut de Chimie des Milieux et Matériaux de Poitiers, CNRS-Université Poitiers, ENSIP, 1 rue Marcel Doré, 86073 Poitiers, France
| | - Emmanuel Ibarboure
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, 16 Avenue Pey-Berland, 33600 Pessac, France
| | - François Jerome
- Institut de Chimie des Milieux et Matériaux de Poitiers, CNRS-Université Poitiers, ENSIP, 1 rue Marcel Doré, 86073 Poitiers, France
| | - Henri Cramail
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, 16 Avenue Pey-Berland, 33600 Pessac, France
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6
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Fauquignon M, Ibarboure E, Le Meins JF. Hybrid polymer/lipid vesicles: Influence of polymer architecture and molar mass on line tension. Biophys J 2022; 121:61-67. [PMID: 34890579 PMCID: PMC8758416 DOI: 10.1016/j.bpj.2021.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/27/2021] [Accepted: 12/06/2021] [Indexed: 01/07/2023] Open
Abstract
Hybrid polymer/lipid vesicles are self-assembled structures that have been the subject of an increasing number of studies in recent years. They are particularly promising tools in the development of cell membrane models because they offer the possibility to fine-tune their membrane structure by adjusting the distribution of components (presence or absence of "raft-like" lipid domains), which is of prime importance to control their membrane properties. Line tension in multiphase membranes is known to be a key parameter on membrane structuration, but remains unexplored, either experimentally or by computer modeling for hybrid polymer/lipid vesicles. In this study, we were able to measure the line tension on different budded hybrid vesicles, using a micropipette aspiration technique, and show the influence of the molar mass and the architecture of block copolymers on line tension and its consequences for membrane structuration.
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Affiliation(s)
- Martin Fauquignon
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac, France
| | - Emmanuel Ibarboure
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac, France
| | - Jean-François Le Meins
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac, France,Corresponding author
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7
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Zhao H, Ibarboure E, Ibrahimova V, Xiao Y, Garanger E, Lecommandoux S. Spatiotemporal Dynamic Assembly/Disassembly of Organelle-Mimics Based on Intrinsically Disordered Protein-Polymer Conjugates. Adv Sci (Weinh) 2021; 8:e2102508. [PMID: 34719874 PMCID: PMC8693077 DOI: 10.1002/advs.202102508] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/09/2021] [Indexed: 05/04/2023]
Abstract
Design of reversible organelle-like microcompartments formed by liquid-liquid phase separation in cell-mimicking entities has significantly advanced the bottom-up construction of artificial eukaryotic cells. However, organizing the formation of artificial organelle architectures in a spatiotemporal manner within complex primitive compartments remains scarcely explored. In this work, thermoresponsive hybrid polypeptide-polymer conjugates are rationally engineered and synthesized, resulting from the conjugation of an intrinsically disordered synthetic protein (IDP), namely elastin-like polypeptide, and synthetic polymers (poly(ethylene glycol) and dextran) that are widely used as macromolecular crowding agents. Cell-like constructs are built using droplet-based microfluidics that are filled with such bioconjugates and an artificial cytoplasm system that is composed of specific polymers conjugated to the IDP. The distinct spatial organizations of two polypeptide-polymer conjugates and the dynamic assembly and disassembly of polypeptide-polymer coacervate droplets in response to temperature are studied in the cytomimetic protocells. Furthermore, a monoblock IDP with longer length is concurrently included with bioconjugates individually inside cytomimetic compartments. Both bioconjugates exhibit an identical surfactant-like property, compartmentalizing the monoblock IDP coacervates via temperature control. These findings lay the foundation for developing hierarchically structured synthetic cells with interior organelle-like structures which could be designed to localize in desired phase-separated subcompartments.
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Affiliation(s)
- Hang Zhao
- Univ. BordeauxCNRSBordeaux INPLCPOUMR 5629PessacF‐33600France
| | | | | | - Ye Xiao
- Univ. BordeauxCNRSBordeaux INPLCPOUMR 5629PessacF‐33600France
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8
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Ibrahimova V, Zhao H, Ibarboure E, Garanger E, Lecommandoux S. Thermosensitive Vesicles from Chemically Encoded Lipid‐Grafted Elastin‐like Polypeptides. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102807] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Vusala Ibrahimova
- University of Bordeaux CNRS Bordeaux INP, LCPO, UMR 5629 33600 Pessac France
| | - Hang Zhao
- University of Bordeaux CNRS Bordeaux INP, LCPO, UMR 5629 33600 Pessac France
| | - Emmanuel Ibarboure
- University of Bordeaux CNRS Bordeaux INP, LCPO, UMR 5629 33600 Pessac France
| | - Elisabeth Garanger
- University of Bordeaux CNRS Bordeaux INP, LCPO, UMR 5629 33600 Pessac France
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9
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Ibrahimova V, Zhao H, Ibarboure E, Garanger E, Lecommandoux S. Thermosensitive Vesicles from Chemically Encoded Lipid-Grafted Elastin-like Polypeptides. Angew Chem Int Ed Engl 2021; 60:15036-15040. [PMID: 33856091 DOI: 10.1002/anie.202102807] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/26/2021] [Indexed: 12/14/2022]
Abstract
Biomimetic design to afford smart functional biomaterials with exquisite properties represents synthetic challenges and provides unique perspectives. In this context, elastin-like polypeptides (ELPs) recently became highly attractive building blocks in the development of lipoprotein-based membranes. In addition to the bioengineered post-translational modifications of genetically encoded recombinant ELPs developed so far, we report here a simple and versatile method to design biohybrid brush-like lipid-grafted-ELPs using chemical post-modification reactions. We have explored a combination of methionine alkylation and click chemistry to create a new class of hybrid lipoprotein mimics. Our design allowed the formation of biomimetic vesicles with controlled permeability, correlated to the temperature-responsiveness of ELPs.
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Affiliation(s)
- Vusala Ibrahimova
- University of Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, 33600, Pessac, France
| | - Hang Zhao
- University of Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, 33600, Pessac, France
| | - Emmanuel Ibarboure
- University of Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, 33600, Pessac, France
| | - Elisabeth Garanger
- University of Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, 33600, Pessac, France
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10
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Fauquignon M, Ibarboure E, Le Meins JF. Membrane reinforcement in giant hybrid polymer lipid vesicles achieved by controlling the polymer architecture. Soft Matter 2021; 17:83-89. [PMID: 33150346 DOI: 10.1039/d0sm01581d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The physical properties of membranes of hybrid polymer lipid vesicles are so far relatively unknown. Since their discovery a decade ago, many studies have aimed to show their great potential in many fields of application, but so far, few systematic studies have been carried out to decipher the relationship between the molecular characteristics of the components (molar mass, chemical nature, and architecture of the copolymer), the membrane structure and its properties. In this work, we study the association of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) and poly(dimethylsiloxane)-b-poly(ethylene oxide) (PDMS-b-PEO) diblock copolymers of different molar masses in giant hybrid vesicles and establish a complete phase diagram of the membrane structure. We also measured the mechanical properties of the giant hybrid unilamellar vesicle (GHUV) through micropipette aspiration at different lipid/polymer compositions. Thanks to a previous work using triblock PEO-b-PDMS-b-PEO copolymers, we were able to reveal the effect of the architecture of the block copolymer on membrane structure and properties. Besides, the association of diblock copolymers PDMS-b-PEO and POPC leads to the formation of hybrid vesicles with unprecedented membrane toughness.
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Affiliation(s)
- Martin Fauquignon
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France.
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11
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Bravo-Anaya LM, Rosselgong J, Fernández-Solís KG, Xiao Y, Vax A, Ibarboure E, Ruban A, Lebleu C, Joucla G, Garbay B, Garanger E, Lecommandoux S. Coupling of RAFT polymerization and chemoselective post-modifications of elastin-like polypeptides for the synthesis of gene delivery hybrid vectors. Polym Chem 2021. [DOI: 10.1039/d0py01293a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hybrid cationic ELPs for nucleic acids transport and delivery were synthetized through the coupling of RAFT polymerization and biorthogonal chemistry of ELPs, introducing a specific number of positive charges to the ELP backbone.
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Affiliation(s)
| | | | | | - Ye Xiao
- University of Bordeaux
- CNRS
- Bordeaux INP
- Pessac
- France
| | - Amélie Vax
- University of Bordeaux
- CNRS
- Bordeaux INP
- Pessac
- France
| | | | - Anna Ruban
- University of Bordeaux
- CNRS
- Bordeaux INP
- Pessac
- France
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12
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Grazon C, Salas-Ambrosio P, Antoine S, Ibarboure E, Sandre O, Clulow AJ, Boyd BJ, Grinstaff MW, Lecommandoux S, Bonduelle C. Aqueous ROPISA of α-amino acid N-carboxyanhydrides: polypeptide block secondary structure controls nanoparticle shape anisotropy. Polym Chem 2021. [DOI: 10.1039/d1py00995h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Ring-Opening Polymerization-Induced Self-Assembly (ROPISA) of N-carboxyanhydride is an efficient one-step process to obtain nanomaterials made of polypeptides.
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Affiliation(s)
- Chloé Grazon
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
- Departments of Chemistry and Biomedical Engineering, Boston University, Boston, MA, USA
- Univ. Bordeaux, Institut des Sciences Moléculaires (CNRS UMR 5255), 33405 Talence, France
| | | | - Ségolène Antoine
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Emmanuel Ibarboure
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Olivier Sandre
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Andrew J. Clulow
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, 381 Royal Parade, Parkville, VIC 3052, Australia
- Australian Synchrotron, ANSTO, 800 Blackburn Road, Clayton, VIC 3168, Australia
| | - Ben J. Boyd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, 381 Royal Parade, Parkville, VIC 3052, Australia
- ARC Centre of Excellence in Convergent Bionano Science and Technology, Monash Institute of Pharmaceutical Sciences, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Mark W. Grinstaff
- Departments of Chemistry and Biomedical Engineering, Boston University, Boston, MA, USA
| | | | - Colin Bonduelle
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
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Zhang T, Peruch F, Wirotius AL, Ibarboure E, Rosu F, Schatz C, Garbay B. Unprecedented coupling of natural rubber and ELP: synthesis, characterization and self-assembly properties. Polym Chem 2021. [DOI: 10.1039/d1py00969a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Developing new biomaterials is an active research area owing to their applications in regenerative medicine, tissue engineering and drug delivery.
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Affiliation(s)
- Tingting Zhang
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Frédéric Peruch
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | | | - Emmanuel Ibarboure
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Frédéric Rosu
- Univ. Bordeaux, CNRS & Inserm, IECB, UMS3033, US001, 33607 Pessac, France
| | - Christophe Schatz
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
| | - Bertrand Garbay
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600, Pessac, France
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14
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Anaya LMB, Petitdemange R, Rosselin M, Ibarboure E, Garbay B, Garanger E, Deming TJ, Lecommandoux S. Design of Thermoresponsive Elastin-Like Glycopolypeptides for Selective Lectin Binding and Sorting. Biomacromolecules 2020; 22:76-85. [PMID: 32379435 DOI: 10.1021/acs.biomac.0c00374] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Selective lectin binding and sorting was achieved using thermosensitive glycoconjugates derived from recombinant elastin-like polypeptides (ELPs) in simple centrifugation-precipitation assays. A recombinant ELP, (VPGXG)40, containing periodically spaced methionine residues was used to enable chemoselective postsynthetic modification via thioether alkylation using alkyne functional epoxide derivatives. The resulting sulfonium groups were selectively demethylated to give alkyne functionalized homocysteine residues, which were then reacted with azido-functionalized monosaccharides to obtain ELP glycoconjugates with periodic saccharide functionality. These modifications were also found to allow modulation of ELP temperature dependent water solubility. The multivalent ELP glycoconjugates were evaluated for specific recognition, binding and separation of the lectin Ricinus communis agglutinin (RCA120) from a complex protein mixture. RCA120 and ELP glycoconjugate interactions were evaluated using laser scanning confocal microscopy and dynamic light scattering. Due to the thermoresponsive nature of the ELP glycoconjugates, it was found that heating a mixture of galactose-functionalized ELP and RCA120 in complex media selectively yielded a phase separated pellet of ELP-RCA120 complexes. Based on these results, ELP glycoconjugates show promise as designer biopolymers for selective protein binding and sorting.
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Affiliation(s)
| | - Rosine Petitdemange
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac, F-33600, France.,Departments of Chemistry and Biochemistry and Bioengineering, University of California-Los Angeles, Los Angeles, California 90095, United States
| | - Marie Rosselin
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac, F-33600, France
| | - Emmanuel Ibarboure
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac, F-33600, France
| | - Bertrand Garbay
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac, F-33600, France
| | - Elisabeth Garanger
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, Pessac, F-33600, France
| | - Timothy J Deming
- Departments of Chemistry and Biochemistry and Bioengineering, University of California-Los Angeles, Los Angeles, California 90095, United States
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Passos Gibson V, Fauquignon M, Ibarboure E, Leblond Chain J, Le Meins JF. Switchable Lipid Provides pH-Sensitive Properties to Lipid and Hybrid Polymer/Lipid Membranes. Polymers (Basel) 2020; 12:polym12030637. [PMID: 32168824 PMCID: PMC7183064 DOI: 10.3390/polym12030637] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/02/2020] [Accepted: 03/06/2020] [Indexed: 12/21/2022] Open
Abstract
Blending amphiphilic copolymers and lipids constitutes a novel approach to combine the advantages of polymersomes and liposomes into a new single hybrid membrane. Efforts have been made to design stimuli-responsive vesicles, in which the membrane's dynamic is modulated by specific triggers. In this investigation, we proposed the design of pH-responsive hybrid vesicles formulated with poly(dimethylsiloxane)-block-poly(ethylene oxide) backbone (PDMS36-b-PEO23) and cationic switchable lipid (CSL). The latter undergoes a pH-triggered conformational change and induces membrane destabilization. Using confocal imaging and DLS measurements, we interrogated the structural changes in CSL-doped lipid and hybrid polymer/lipid unilamellar vesicles at the micro- and nanometric scale, respectively. Both switchable giant unilamellar lipid vesicles (GUV) and hybrid polymer/lipid unilamellar vesicles (GHUV) presented dynamic morphological changes, including protrusions and fission upon acidification. At the submicron scale, scattered intensity decreased for both switchable large unilamellar vesicles (LUV) and hybrid vesicles (LHUV) under acidic pH. Finally, monitoring the fluorescence leakage of encapsulated calcein, we attested that CSL increased the permeability of GUV and GHUV in a pH-specific fashion. Altogether, these results show that switchable lipids provide a pH-sensitive behavior to hybrid polymer/lipid vesicles that could be exploited for the triggered release of drugs, cell biomimicry studies, or as bioinspired micro/nanoreactors.
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Affiliation(s)
- Victor Passos Gibson
- Gene Delivery Laboratory, Faculty of pharmacy, University of Montréal, Montréal, QC H3C 3J7, Canada;
| | - Martin Fauquignon
- Laboratoire de Chimie des Polymères Organiques, LCPO, Université de Bordeaux, CNRS, Bordeaux INP, UMR 5629, Avenue Pey Berland, F-33600 Pessac, France; (M.F.); (E.I.)
| | - Emmanuel Ibarboure
- Laboratoire de Chimie des Polymères Organiques, LCPO, Université de Bordeaux, CNRS, Bordeaux INP, UMR 5629, Avenue Pey Berland, F-33600 Pessac, France; (M.F.); (E.I.)
| | - Jeanne Leblond Chain
- Gene Delivery Laboratory, Faculty of pharmacy, University of Montréal, Montréal, QC H3C 3J7, Canada;
- ARNA Laboratory, INSERM U1212, CNRS UMR 5320, University of Bordeaux, Faculty of pharmacy, F-33016 Bordeaux, France
- Correspondence: (J.L.C.); (J.-F.L.M.)
| | - Jean-François Le Meins
- Laboratoire de Chimie des Polymères Organiques, LCPO, Université de Bordeaux, CNRS, Bordeaux INP, UMR 5629, Avenue Pey Berland, F-33600 Pessac, France; (M.F.); (E.I.)
- Correspondence: (J.L.C.); (J.-F.L.M.)
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Ibarboure E, Fauquignon M, Le Meins JF. Obtention of Giant Unilamellar Hybrid Vesicles by Electroformation and Measurement of their Mechanical Properties by Micropipette Aspiration. J Vis Exp 2020. [DOI: 10.3791/60199] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Grazon C, Salas‐Ambrosio P, Ibarboure E, Buol A, Garanger E, Grinstaff MW, Lecommandoux S, Bonduelle C. Titelbild: Aqueous Ring‐Opening Polymerization‐Induced Self‐Assembly (ROPISA) of N‐Carboxyanhydrides (Angew. Chem. 2/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chloé Grazon
- CNRS, Bordeaux INP, LCPO, UMR 5629Univ. Bordeaux 33600 Pessac France
- Departments of Chemistry and Biomedical EngineeringBoston University Boston MA USA
| | | | | | - Alix Buol
- CNRS, Bordeaux INP, LCPO, UMR 5629Univ. Bordeaux 33600 Pessac France
| | | | - Mark W. Grinstaff
- Departments of Chemistry and Biomedical EngineeringBoston University Boston MA USA
| | | | - Colin Bonduelle
- CNRS, Bordeaux INP, LCPO, UMR 5629Univ. Bordeaux 33600 Pessac France
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Grazon C, Salas‐Ambrosio P, Ibarboure E, Buol A, Garanger E, Grinstaff MW, Lecommandoux S, Bonduelle C. Aqueous Ring‐Opening Polymerization‐Induced Self‐Assembly (ROPISA) of N‐Carboxyanhydrides. Angew Chem Int Ed Engl 2020; 59:622-626. [DOI: 10.1002/anie.201912028] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/20/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Chloé Grazon
- CNRS, Bordeaux INP, LCPO, UMR 5629Univ. Bordeaux 33600 Pessac France
- Departments of Chemistry and Biomedical EngineeringBoston University Boston MA USA
| | | | | | - Alix Buol
- CNRS, Bordeaux INP, LCPO, UMR 5629Univ. Bordeaux 33600 Pessac France
| | | | - Mark W. Grinstaff
- Departments of Chemistry and Biomedical EngineeringBoston University Boston MA USA
| | | | - Colin Bonduelle
- CNRS, Bordeaux INP, LCPO, UMR 5629Univ. Bordeaux 33600 Pessac France
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Grazon C, Salas‐Ambrosio P, Ibarboure E, Buol A, Garanger E, Grinstaff MW, Lecommandoux S, Bonduelle C. Cover Picture: Aqueous Ring‐Opening Polymerization‐Induced Self‐Assembly (ROPISA) of N‐Carboxyanhydrides (Angew. Chem. Int. Ed. 2/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/anie.201915233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chloé Grazon
- CNRS, Bordeaux INP, LCPO, UMR 5629Univ. Bordeaux 33600 Pessac France
- Departments of Chemistry and Biomedical EngineeringBoston University Boston MA USA
| | | | | | - Alix Buol
- CNRS, Bordeaux INP, LCPO, UMR 5629Univ. Bordeaux 33600 Pessac France
| | | | - Mark W. Grinstaff
- Departments of Chemistry and Biomedical EngineeringBoston University Boston MA USA
| | | | - Colin Bonduelle
- CNRS, Bordeaux INP, LCPO, UMR 5629Univ. Bordeaux 33600 Pessac France
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Fauquignon M, Ibarboure E, Carlotti S, Brûlet A, Schmutz M, Le Meins JF. Large and Giant Unilamellar Vesicle(s) Obtained by Self-Assembly of Poly(dimethylsiloxane)- b-poly(ethylene oxide) Diblock Copolymers, Membrane Properties and Preliminary Investigation of their Ability to Form Hybrid Polymer/Lipid Vesicles. Polymers (Basel) 2019; 11:E2013. [PMID: 31817266 PMCID: PMC6960648 DOI: 10.3390/polym11122013] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 11/22/2019] [Accepted: 12/02/2019] [Indexed: 01/17/2023] Open
Abstract
In the emerging field of hybrid polymer/lipid vesicles, relatively few copolymers have been evaluated regarding their ability to form these structures and the resulting membrane properties have been scarcely studied. Here, we present the synthesis and self-assembly in solution of poly(dimethylsiloxane)-block-poly(ethylene oxide) diblock copolymers (PDMS-b-PEO). A library of different PDMS-b-PEO diblock copolymers was synthesized using ring-opening polymerization of hexamethylcyclotrisiloxane (D3) and further coupling with PEO chains via click chemistry. Self-assembly of the copolymers in water was studied using Dynamic Light Scattering (DLS), Static Light Scattering (SLS), Small Angle Neutron Scattering (SANS), and Cryo-Transmission Electron Microscopy (Cryo-TEM). Giant polymersomes obtained by electroformation present high toughness compared to those obtained from triblock copolymer in previous studies, for similar membrane thickness. Interestingly, these copolymers can be associated to phospholipids to form Giant Hybrid Unilamellar Vesicles (GHUV); preliminary investigations of their mechanical properties show that tough hybrid vesicles can be obtained.
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Affiliation(s)
- Martin Fauquignon
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France; (M.F.); (E.I.); (S.C.)
| | - Emmanuel Ibarboure
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France; (M.F.); (E.I.); (S.C.)
| | - Stéphane Carlotti
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France; (M.F.); (E.I.); (S.C.)
| | - Annie Brûlet
- Laboratoire Léon Brillouin, UMR12 CEA-CNRS, CEA Saclay, F-91191 Gif-sur-Yvette CEDEX, France;
| | - Marc Schmutz
- Institut Charles Sadron, UPR 22 CNRS, Université de Strasbourg, 23 rue du Loess, 67034 Strasbourg, France;
| | - Jean-François Le Meins
- Université de Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629, F-33600 Pessac, France; (M.F.); (E.I.); (S.C.)
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21
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Bravo-Anaya L, Garbay B, Nando-Rodríguez J, Carvajal Ramos F, Ibarboure E, Bathany K, Xia Y, Rosselgong J, Joucla G, Garanger E, Lecommandoux S. Nucleic acids complexation with cationic elastin-like polypeptides: Stoichiometry and stability of nano-assemblies. J Colloid Interface Sci 2019; 557:777-792. [DOI: 10.1016/j.jcis.2019.09.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 09/13/2019] [Accepted: 09/16/2019] [Indexed: 02/01/2023]
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23
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Jacobs J, Pavlović D, Prydderch H, Moradi MA, Ibarboure E, Heuts JPA, Lecommandoux S, Heise A. Polypeptide Nanoparticles Obtained from Emulsion Polymerization of Amino Acid N-Carboxyanhydrides. J Am Chem Soc 2019; 141:12522-12526. [PMID: 31348858 DOI: 10.1021/jacs.9b06750] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Polypeptide nanoparticles were obtained by the miniemulsion polymerization of S-(o-nitrobenzyl)-l-cysteine (NBC) N-carboxyanhydride (NCA). Through process optimization, reaction conditions were identified that allowed the polymerization of the water sensitive NCA to yield nanoparticles of about 220 nm size. Subsequent UV-irradiation of the nanoparticle emulsions caused the in situ removal of the nitrobenzyl group and particle cross-linking through disulfide bond formation accompanied by the shrinkage of the particles.
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Affiliation(s)
- Jaco Jacobs
- School of Chemical Sciences , Dublin City University , Glasnevin, Dublin 9 , Ireland
| | - Dražen Pavlović
- Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland
| | - Hannah Prydderch
- Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland
| | - Mohammad-Amin Moradi
- Department of Chemical Engineering & Chemistry and Institute for Complex Molecular Systems , Eindhoven University of Technology , PO Box 513, 5600 MB Eindhoven , The Netherlands
| | - Emmanuel Ibarboure
- Univ. Bordeaux, CNRS, Bordeaux INP, LCPO, UMR 5629 , F-33600 Pessac , France
| | - Johan P A Heuts
- Department of Chemical Engineering & Chemistry and Institute for Complex Molecular Systems , Eindhoven University of Technology , PO Box 513, 5600 MB Eindhoven , The Netherlands
| | | | - Andreas Heise
- Department of Chemistry , Royal College of Surgeons in Ireland , 123 St. Stephen's Green , Dublin 2 , Ireland
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Dao TPT, Fernandes F, Fauquignon M, Ibarboure E, Prieto M, Le Meins JF. The combination of block copolymers and phospholipids to form giant hybrid unilamellar vesicles (GHUVs) does not systematically lead to "intermediate" membrane properties. Soft Matter 2018; 14:6476-6484. [PMID: 30043790 DOI: 10.1039/c8sm00547h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work, the elasticity under stretching as well as the fluidity of Giant Hybrid Unilamellar Vesicles (GHUV) has been studied. The membrane structuration of these GHUVs has already been studied at the micro and nanoscale in a previous study of the team. These GHUVs were obtained by the association of a fluid phospholipid (POPC) and a triblock copolymer, poly(ethyleneoxide)-b-poly(dimethylsiloxane)-b-poly(ethyleneoxide). Although the architecture of triblock copolymers can facilitate vesicle formation, they have been scarcely used to generate GHUVs. We show, through micropipette aspiration and FRAP experiments, that the incorporation of a low amount of lipids in the polymer membrane leads to a significant loss of the toughness of the vesicle and subtle modification of the lateral diffusion of polymer chains. We discuss the results within the framework of the conformation of the triblock copolymer chain in the membrane and in the presence of lipid nanodomains.
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Affiliation(s)
- T P T Dao
- University of Bordeaux, LCPO UMR 5629, 16 Avenue Pey Berland, F-33600 Pessac, France.
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Peyret A, Ibarboure E, Le Meins J, Lecommandoux S. Asymmetric Hybrid Polymer-Lipid Giant Vesicles as Cell Membrane Mimics. Adv Sci (Weinh) 2018; 5:1700453. [PMID: 29375971 PMCID: PMC5770682 DOI: 10.1002/advs.201700453] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/17/2017] [Indexed: 05/29/2023]
Abstract
Lipid membrane asymmetry plays an important role in cell function and activity, being for instance a relevant signal of its integrity. The development of artificial asymmetric membranes thus represents a key challenge. In this context, an emulsion-centrifugation method is developed to prepare giant vesicles with an asymmetric membrane composed of an inner monolayer of poly(butadiene)-b-poly(ethylene oxide) (PBut-b-PEO) and outer monolayer of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC). The formation of a complete membrane asymmetry is demonstrated and its stability with time is followed by measuring lipid transverse diffusion. From fluorescence spectroscopy measurements, the lipid half-life is estimated to be 7.5 h. Using fluorescence recovery after photobleaching technique, the diffusion coefficient of 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine-N-(lissamine rhodamine B sulfonyl) (DOPE-rhod, inserted into the POPC leaflet) is determined to be about D = 1.8 ± 0.50 μm2 s-1 at 25 °C and D = 2.3 ± 0.7 μm2 s-1 at 37 °C, between the characteristic values of pure POPC and pure polymer giant vesicles and in good agreement with the diffusion of lipids in a variety of biological membranes. These results demonstrate the ability to prepare a cell-like model system that displays an asymmetric membrane with transverse and translational diffusion properties similar to that of biological cells.
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Affiliation(s)
- Ariane Peyret
- Laboratoire de Chimie des Polymères OrganiquesLCPOUniversité de BordeauxCNRSBordeaux INPUMR 562916 Avenue Pey BerlandF‐33600PessacFrance
| | - Emmanuel Ibarboure
- Laboratoire de Chimie des Polymères OrganiquesLCPOUniversité de BordeauxCNRSBordeaux INPUMR 562916 Avenue Pey BerlandF‐33600PessacFrance
| | - Jean‐François Le Meins
- Laboratoire de Chimie des Polymères OrganiquesLCPOUniversité de BordeauxCNRSBordeaux INPUMR 562916 Avenue Pey BerlandF‐33600PessacFrance
| | - Sebastien Lecommandoux
- Laboratoire de Chimie des Polymères OrganiquesLCPOUniversité de BordeauxCNRSBordeaux INPUMR 562916 Avenue Pey BerlandF‐33600PessacFrance
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Gervais M, Forens A, Ibarboure E, Carlotti S. Anionic polymerization of activated oxetane and its copolymerization with ethylene oxide for the synthesis of amphiphilic block copolymers. Polym Chem 2018. [DOI: 10.1039/c8py00307f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The anionic polymerization of oxetane in toluene was achieved using a combination of tetraoctylammonium bromide and simple triisobutylaluminum. By its copolymerization with ethylene oxide, di- and triblock copolymers were prepared in one and two steps respectively.
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Affiliation(s)
- Matthieu Gervais
- Bordeaux INP
- Univ. of Bordeaux
- CNRS
- Laboratoire de Chimie des Polymères Organiques
- UMR 5629
| | - Antoine Forens
- Bordeaux INP
- Univ. of Bordeaux
- CNRS
- Laboratoire de Chimie des Polymères Organiques
- UMR 5629
| | - Emmanuel Ibarboure
- Bordeaux INP
- Univ. of Bordeaux
- CNRS
- Laboratoire de Chimie des Polymères Organiques
- UMR 5629
| | - Stephane Carlotti
- Bordeaux INP
- Univ. of Bordeaux
- CNRS
- Laboratoire de Chimie des Polymères Organiques
- UMR 5629
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Dao T, Fauquignon M, Fernandes F, Ibarboure E, Vax A, Prieto M, Le Meins J. Membrane properties of giant polymer and lipid vesicles obtained by electroformation and pva gel-assisted hydration methods. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.09.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Peyret A, Ibarboure E, Tron A, Beauté L, Rust R, Sandre O, McClenaghan N, Lecommandoux S. Photon-triggered polymersome rupture under temporal, spatial and spectral control. J Control Release 2017. [DOI: 10.1016/j.jconrel.2017.03.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Abstract
Multicompartmentalization is a key feature of eukaryotic cells, allowing separation and protection of species within the membrane walls. During the last years, several methods have been reported to afford synthetic multicompartment lipidic or polymeric vesicles that mimic biological cells and that allow cascade chemical or enzymatic reactions within their lumen. We hereby report on the preparation and study of liposomes in polymersomes (LiPs) systems. We discuss on the loading and coloading of lipidic nanovesicles made of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC), 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC), 1,2-dipentadecanoyl-sn-glycero-3-phosphocholine (diC15-PC), or 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) inside the lumen of giant poly(butadiene)-b-poly(ethylene oxide) (PBut-b-PEO) polymersomes. These LiPs systems were characterized by confocal microscopy and UV-visible spectroscopy. We further demonstrate that we can achieve controlled sequential release of dyes from diC15-PC and DPPC liposomes at defined temperatures inside the giant PBut-b-PEO polymersomes. This controlled release could be used as a means to initiate cascade reactions on demand in confined microreactors.
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Affiliation(s)
- Ariane Peyret
- Laboratoire de Chimie des Polymères Organiques, LCPO, Université de Bordeaux , CNRS, Bordeaux INP, UMR 5629, 16 Avenue Pey Berland F-33600 Pessac, France
| | - Emmanuel Ibarboure
- Laboratoire de Chimie des Polymères Organiques, LCPO, Université de Bordeaux , CNRS, Bordeaux INP, UMR 5629, 16 Avenue Pey Berland F-33600 Pessac, France
| | - Natassa Pippa
- Laboratoire de Chimie des Polymères Organiques, LCPO, Université de Bordeaux , CNRS, Bordeaux INP, UMR 5629, 16 Avenue Pey Berland F-33600 Pessac, France
| | - Sebastien Lecommandoux
- Laboratoire de Chimie des Polymères Organiques, LCPO, Université de Bordeaux , CNRS, Bordeaux INP, UMR 5629, 16 Avenue Pey Berland F-33600 Pessac, France
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Peyret A, Ibarboure E, Tron A, Beauté L, Rust R, Sandre O, McClenaghan ND, Lecommandoux S. Inside Back Cover: Polymersome Popping by Light‐Induced Osmotic Shock under Temporal, Spatial, and Spectral Control (Angew. Chem. Int. Ed. 6/2017). Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201700283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ariane Peyret
- Laboratoire de Chimie des Polymères Organiques, LCPOUniversité de Bordeaux CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Emmanuel Ibarboure
- Laboratoire de Chimie des Polymères Organiques, LCPOUniversité de Bordeaux CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Arnaud Tron
- Institut des Sciences MoléculairesUniversité de Bordeaux CNRS UMR 5255 33405 Talence France
| | - Louis Beauté
- Laboratoire de Chimie des Polymères Organiques, LCPOUniversité de Bordeaux CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Ruben Rust
- Institut des Sciences MoléculairesUniversité de Bordeaux CNRS UMR 5255 33405 Talence France
| | - Olivier Sandre
- Laboratoire de Chimie des Polymères Organiques, LCPOUniversité de Bordeaux CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Nathan D. McClenaghan
- Institut des Sciences MoléculairesUniversité de Bordeaux CNRS UMR 5255 33405 Talence France
| | - Sebastien Lecommandoux
- Laboratoire de Chimie des Polymères Organiques, LCPOUniversité de Bordeaux CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
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Peyret A, Ibarboure E, Tron A, Beauté L, Rust R, Sandre O, McClenaghan ND, Lecommandoux S. Innenrücktitelbild: Polymersome Popping by Light-Induced Osmotic Shock under Temporal, Spatial, and Spectral Control (Angew. Chem. 6/2017). Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ariane Peyret
- Laboratoire de Chimie des Polymères Organiques, LCPO; Université de Bordeaux; CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Emmanuel Ibarboure
- Laboratoire de Chimie des Polymères Organiques, LCPO; Université de Bordeaux; CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Arnaud Tron
- Institut des Sciences Moléculaires; Université de Bordeaux; CNRS UMR 5255 33405 Talence France
| | - Louis Beauté
- Laboratoire de Chimie des Polymères Organiques, LCPO; Université de Bordeaux; CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Ruben Rust
- Institut des Sciences Moléculaires; Université de Bordeaux; CNRS UMR 5255 33405 Talence France
| | - Olivier Sandre
- Laboratoire de Chimie des Polymères Organiques, LCPO; Université de Bordeaux; CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Nathan D. McClenaghan
- Institut des Sciences Moléculaires; Université de Bordeaux; CNRS UMR 5255 33405 Talence France
| | - Sebastien Lecommandoux
- Laboratoire de Chimie des Polymères Organiques, LCPO; Université de Bordeaux; CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
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Peyret A, Ibarboure E, Tron A, Beauté L, Rust R, Sandre O, McClenaghan ND, Lecommandoux S. Polymersome Popping by Light‐Induced Osmotic Shock under Temporal, Spatial, and Spectral Control. Angew Chem Int Ed Engl 2017; 56:1566-1570. [DOI: 10.1002/anie.201609231] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 11/15/2016] [Indexed: 12/29/2022]
Affiliation(s)
- Ariane Peyret
- Laboratoire de Chimie des Polymères Organiques, LCPOUniversité de Bordeaux CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Emmanuel Ibarboure
- Laboratoire de Chimie des Polymères Organiques, LCPOUniversité de Bordeaux CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Arnaud Tron
- Institut des Sciences MoléculairesUniversité de Bordeaux CNRS UMR 5255 33405 Talence France
| | - Louis Beauté
- Laboratoire de Chimie des Polymères Organiques, LCPOUniversité de Bordeaux CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Ruben Rust
- Institut des Sciences MoléculairesUniversité de Bordeaux CNRS UMR 5255 33405 Talence France
| | - Olivier Sandre
- Laboratoire de Chimie des Polymères Organiques, LCPOUniversité de Bordeaux CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Nathan D. McClenaghan
- Institut des Sciences MoléculairesUniversité de Bordeaux CNRS UMR 5255 33405 Talence France
| | - Sebastien Lecommandoux
- Laboratoire de Chimie des Polymères Organiques, LCPOUniversité de Bordeaux CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
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Dao TPT, Fernandes F, Ibarboure E, Ferji K, Prieto M, Sandre O, Le Meins JF. Modulation of phase separation at the micron scale and nanoscale in giant polymer/lipid hybrid unilamellar vesicles (GHUVs). Soft Matter 2017; 13:627-637. [PMID: 27991638 DOI: 10.1039/c6sm01625a] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Phase separation in giant polymer/lipid hybrid unilamellar vesicles (GHUVs) has been described over the last few years. However there is still a lack of understanding on the physical and molecular factors governing the phase separation in such systems. Among these parameters it has been suggested that in analogy to multicomponent lipid vesicles hydrophobic mismatches as well as lipid fluidity play a role. In this work, we aim to map a global picture of phase separation and domain formation in the membrane of GHUVs by using various copolymers based on poly(dimethylsiloxane) (PDMS) and poly(ethylene glycol) (PEO) with different architectures (grafted, triblock) and molar masses, combined with phospholipids in the fluid (POPC) or gel state (DPPC) at room temperature. From confocal imaging and fluorescence lifetime imaging microscopy (FLIM) techniques, the phase separation into either micro- or nano-domains within GHUVs was studied. In particular, our systematic studies demonstrate that in addition to the lipid/polymer fraction or the lipid physical state, important factors such as line tension at lipid polymer/lipid boundaries can be finely modulated by the molar mass and the architecture of the copolymer and lead to the formation of stable lipid domains with different sizes and morphologies in such GHUVs.
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Affiliation(s)
- Thi Phuong Tuyen Dao
- University of Bordeaux, LCPO UMR 5629, 16 avenue PeyBerland, F-33600 Pessac, France. and CNRS, Laboratoire de Chimie des Polymères Organiques, UMR 5629, F-33600, Pessac, France and Centro de Química-Física Molecular and Institute of Nanoscience and Nanotechnology, Universidade de Lisboa Instituto Superior Técnico, 1049-001 Lisboa, Portugal.
| | - Fabio Fernandes
- Centro de Química-Física Molecular and Institute of Nanoscience and Nanotechnology, Universidade de Lisboa Instituto Superior Técnico, 1049-001 Lisboa, Portugal. and UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 32829-516, Caparica, Lisbon, Portugal
| | - Emmanuel Ibarboure
- University of Bordeaux, LCPO UMR 5629, 16 avenue PeyBerland, F-33600 Pessac, France. and CNRS, Laboratoire de Chimie des Polymères Organiques, UMR 5629, F-33600, Pessac, France
| | - Khalid Ferji
- University of Bordeaux, LCPO UMR 5629, 16 avenue PeyBerland, F-33600 Pessac, France. and CNRS, Laboratoire de Chimie des Polymères Organiques, UMR 5629, F-33600, Pessac, France
| | - Manuel Prieto
- Centro de Química-Física Molecular and Institute of Nanoscience and Nanotechnology, Universidade de Lisboa Instituto Superior Técnico, 1049-001 Lisboa, Portugal.
| | - Olivier Sandre
- University of Bordeaux, LCPO UMR 5629, 16 avenue PeyBerland, F-33600 Pessac, France. and CNRS, Laboratoire de Chimie des Polymères Organiques, UMR 5629, F-33600, Pessac, France
| | - Jean-François Le Meins
- University of Bordeaux, LCPO UMR 5629, 16 avenue PeyBerland, F-33600 Pessac, France. and CNRS, Laboratoire de Chimie des Polymères Organiques, UMR 5629, F-33600, Pessac, France
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Peyret A, Ibarboure E, Tron A, Beauté L, Rust R, Sandre O, McClenaghan ND, Lecommandoux S. Polymersome Popping by Light-Induced Osmotic Shock under Temporal, Spatial, and Spectral Control. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609231] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ariane Peyret
- Laboratoire de Chimie des Polymères Organiques, LCPO; Université de Bordeaux; CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Emmanuel Ibarboure
- Laboratoire de Chimie des Polymères Organiques, LCPO; Université de Bordeaux; CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Arnaud Tron
- Institut des Sciences Moléculaires; Université de Bordeaux; CNRS UMR 5255 33405 Talence France
| | - Louis Beauté
- Laboratoire de Chimie des Polymères Organiques, LCPO; Université de Bordeaux; CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Ruben Rust
- Institut des Sciences Moléculaires; Université de Bordeaux; CNRS UMR 5255 33405 Talence France
| | - Olivier Sandre
- Laboratoire de Chimie des Polymères Organiques, LCPO; Université de Bordeaux; CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
| | - Nathan D. McClenaghan
- Institut des Sciences Moléculaires; Université de Bordeaux; CNRS UMR 5255 33405 Talence France
| | - Sebastien Lecommandoux
- Laboratoire de Chimie des Polymères Organiques, LCPO; Université de Bordeaux; CNRS, Bordeaux INP, UMR 5629 33600 Pessac France
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Lefrançois P, Ibarboure E, Payré B, Gontier E, Le Meins JF, Schatz C. Insights into Carbopol gel formulations: Microscopy analysis of the microstructure and the influence of polyol additives. J Appl Polym Sci 2015. [DOI: 10.1002/app.42761] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pauline Lefrançois
- CNRS, LCPO; UMR 5629, F-33607 Pessac France
- University of Bordeaux, LCPO; UMR 5629, F-33607 Pessac France
| | - Emmanuel Ibarboure
- CNRS, LCPO; UMR 5629, F-33607 Pessac France
- University of Bordeaux, LCPO; UMR 5629, F-33607 Pessac France
| | - Bruno Payré
- Centre de Microscopie Electronique Appliquée à la Biologie, Faculté de Médecine Rangueil, Toulouse III, Université P. Sabatier; 31062 Toulouse France
| | - Etienne Gontier
- Bordeaux Imaging Center, UMS 3420 CNRS - Université de Bordeaux; US 4 INSERM, F-33076 Bordeaux France
| | - Jean-François Le Meins
- CNRS, LCPO; UMR 5629, F-33607 Pessac France
- University of Bordeaux, LCPO; UMR 5629, F-33607 Pessac France
| | - Christophe Schatz
- CNRS, LCPO; UMR 5629, F-33607 Pessac France
- University of Bordeaux, LCPO; UMR 5629, F-33607 Pessac France
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Zouani OF, Kalisky J, Ibarboure E, Durrieu MC. Effect of BMP-2 from matrices of different stiffnesses for the modulation of stem cell fate. Biomaterials 2013; 34:2157-66. [PMID: 23290467 DOI: 10.1016/j.biomaterials.2012.12.007] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Accepted: 12/13/2012] [Indexed: 12/13/2022]
Abstract
Stem cells cultured on extracellular matrix (ECM) with different stiffnesses have been shown to engage into different lineage commitments. However, in vivo, the components of the ECM are known to bind and strongly interact with growth factors. The effect, on the stem cell fate, of the cooperation between the mechanical properties and the growth factor in the same microenvironment has not yet been investigated. Here, we propose a protocol for mimicking this stem cell microenvironment with an in vitro system. This system consists in grafting (without using a spacer) biomolecules that contain N-termini groups onto hydrogel (poly(acrylamide-co-acrylic acid)) surfaces of various stiffnesses ranging from 0.5 to 70 kPa. First, we demonstrate that the commitment of mesenchymal stem cell populations changes in response to the substrate's rigidity, with myogenic differentiation occurring at 13-17 kPa and osteogenic differentiation at 45-49 kPa. Chemical grafting of soft and stiff matrices with an osteogenic factor (BMP-2(mimetic peptide)) results only in osteogenic differentiation. Also, when grafted on even softer gels (0.5-3.5 kPa), the BMP-2(mimetic peptide) had no effect on the stem cell differentiation. We prove that correct organization of F-actin cytoskeleton due to the mechanical properties of the microenvironment is necessary for BMP-induced smad1/5/8 phosphorylation and nuclear translocation. These results suggest that stem cell differentiation is dictated mechanically, but in the presence of a biochemical factor, the effect of the mechanical factor on stem cell commitment is modified. This can explain the diversity of stem cell behaviors in vivo where different growth factors are sequestrated on the ECM.
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Affiliation(s)
- Omar F Zouani
- U1026, Bioingénierie Tissulaire, Université de Bordeaux, 146 rue Léo Saignat, 33076 Bordeaux, France.
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Lebarbé T, Ibarboure E, Gadenne B, Alfos C, Cramail H. Fully bio-based poly(l-lactide)-b-poly(ricinoleic acid)-b-poly(l-lactide) triblock copolyesters: investigation of solid-state morphology and thermo-mechanical properties. Polym Chem 2013. [DOI: 10.1039/c3py00300k] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Drappier C, Oliveira H, Sandre O, Ibarboure E, Combet S, Garanger E, Lecommandoux S. Self-assembled core–shell micelles from peptide-b-polymer molecular chimeras towards structure–activity relationships. Faraday Discuss 2013; 166:83-100. [DOI: 10.1039/c3fd00098b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Wirotius AL, Ibarboure E, Scarpantonio L, Schappacher M, McClenaghan ND, Deffieux A. Hydrosoluble dendritic poly(ethylene oxide)s with zinc tetraphenylporphyrin branching points as photosensitizers. Polym Chem 2013. [DOI: 10.1039/c2py20936e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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40
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Drappier C, Wirotius AL, Bathany K, Ibarboure E, Condassamy O, Garanger E, Lecommandoux S. Biofunctional micellar nanoparticles from peptide-b-polymer chimeras. Polym Chem 2013. [DOI: 10.1039/c2py21044d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Gervais M, Brocas AL, Deffieux A, Ibarboure E, Carlotti S. Rapid and controlled synthesis of hydrophobic polyethers by monomer activation. PURE APPL CHEM 2012. [DOI: 10.1351/pac-con-11-11-16] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A series of polyethers was prepared by monomer-activated anionic polymerization. The combination of an ammonium salt with triisobutylaluminum allowed the polymerization of epoxides containing various aliphatic side chains (1,2-butene oxide (BO), 1,2-hexene oxide (HO), and 1,2-octadecene oxide (ODO)) or a fluorinated group (3,3,3-trifluoro-1,2-epoxypropane (TFEP)). Polymers of molar masses up to 35 000 g/mol with relatively narrow molar mass distribution could be synthesized. Polymer structures were analyzed by 13C NMR, and the thermal behavior was studied by differential scanning calorimetry (DSC). The evolution of hydrophobicity was investigated according to the length and composition of the side chain. Using a long aliphatic side-chain epoxide (C16) imparted crystallinity to the resulting atactic polymer.
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Sèbe G, Ham-Pichavant F, Ibarboure E, Koffi ALC, Tingaut P. Supramolecular Structure Characterization of Cellulose II Nanowhiskers Produced by Acid Hydrolysis of Cellulose I Substrates. Biomacromolecules 2012; 13:570-8. [DOI: 10.1021/bm201777j] [Citation(s) in RCA: 170] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Gilles Sèbe
- University of Bordeaux, LCPO, UMR 5629,
F-33600 Pessac, France
- CNRS, LCPO, UMR 5629, F-33600 Pessac,
France
| | - Frédérique Ham-Pichavant
- University of Bordeaux, LCPO, UMR 5629,
F-33600 Pessac, France
- CNRS, LCPO, UMR 5629, F-33600 Pessac,
France
| | - Emmanuel Ibarboure
- University of Bordeaux, LCPO, UMR 5629,
F-33600 Pessac, France
- CNRS, LCPO, UMR 5629, F-33600 Pessac,
France
| | | | - Philippe Tingaut
- Swiss Federal Laboratories for Materials Science and Technology (EMPA), CH-8600
Dübendorf, Switzerland
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Heurtefeu B, Ibarboure E, Cramail H. ω-Dimethyl ammonium tetrakis-pentafluorophenyl borate polyisoprene as an organic template for alkylated metallocenes toward the synthesis of polyethylene beads. Polym Chem 2012. [DOI: 10.1039/c2py00588c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Bonduelle C, Huang J, Ibarboure E, Heise A, Lecommandoux S. Synthesis and self-assembly of “tree-like” amphiphilic glycopolypeptides. Chem Commun (Camb) 2012; 48:8353-5. [DOI: 10.1039/c2cc32970k] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Rodriguez-Hernandez J, Ibarboure E, Papon E. Surface segregation of polypeptide-based block copolymer micelles: An approach to engineer nanostructured and stimuli responsive surfaces. Eur Polym J 2011. [DOI: 10.1016/j.eurpolymj.2011.07.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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46
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Labbé A, Brocas AL, Ibarboure E, Ishizone T, Hirao A, Deffieux A, Carlotti S. Selective Ring-Opening Polymerization of Glycidyl Methacrylate: Toward the Synthesis of Cross-Linked (Co)polyethers with Thermoresponsive Properties. Macromolecules 2011. [DOI: 10.1021/ma201075n] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amélie Labbé
- Laboratoire de Chimie des Polymères Organiques, Université de Bordeaux, CNRS, ENSCPB, 16 avenue Pey Berland, 33607 Pessac Cedex, France
| | - Anne-Laure Brocas
- Laboratoire de Chimie des Polymères Organiques, Université de Bordeaux, CNRS, ENSCPB, 16 avenue Pey Berland, 33607 Pessac Cedex, France
| | - Emmanuel Ibarboure
- Laboratoire de Chimie des Polymères Organiques, Université de Bordeaux, CNRS, ENSCPB, 16 avenue Pey Berland, 33607 Pessac Cedex, France
| | - Takashi Ishizone
- Division of Soft Material Chemistry, Polymeric and Organic Materials Department, Graduate School of Science and Engineering, Tokyo Institute of Technology, S1-6, 2-12-1, Ohokayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Akira Hirao
- Division of Soft Material Chemistry, Polymeric and Organic Materials Department, Graduate School of Science and Engineering, Tokyo Institute of Technology, S1-6, 2-12-1, Ohokayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Alain Deffieux
- Laboratoire de Chimie des Polymères Organiques, Université de Bordeaux, CNRS, ENSCPB, 16 avenue Pey Berland, 33607 Pessac Cedex, France
| | - Stéphane Carlotti
- Laboratoire de Chimie des Polymères Organiques, Université de Bordeaux, CNRS, ENSCPB, 16 avenue Pey Berland, 33607 Pessac Cedex, France
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Poly J, Ibarboure E, Le Meins JF, Rodriguez-Hernandez J, Taton D, Papon E. Nanogels based on poly(vinyl acetate) for the preparation of patterned porous films. Langmuir 2011; 27:4290-4295. [PMID: 21417321 DOI: 10.1021/la1048908] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The use of poly(vinyl acetate) (PVAc) nanogels for the fabrication of patterned porous surfaces is described. These nanogels were synthesized by controlled radical cross-linking copolymerization (CRCC) involving a xanthate-mediated reversible addition-fragmentation chain transfer (RAFT) mechanism. This synthesis methodology allowed for the preparation of nanogels based on PVAc with a controlled constitutive chain length and average numbers of chains and cross-links. Solutions of these branched polymers were prepared in THF with a fixed amount of water and spin coated onto a surface of graphite. The surface porosity of corresponding films was observed by atomic force microscopy (AFM). Compared with linear PVAc homologues with a degree of polymerization (DP) sufficiently high to favor the formation of porous structures (DP = 50), a sharper and better defined porosity was observed with nanogels, the constitutive chains of which had the same DP. For nanogels differing only in their cross-link density, the pores were smaller and better defined in the case of the higher cross-link density, suggesting an enhanced stabilization of the water droplets during film formation. To explain these observations, it is postulated that PVAc nanogels can behave as compact particles providing steric stabilization of water droplets, which is referred to as a Pickering effect. The coalescence of water droplets would be better prevented as the cross-link density of the nanogels increases, resulting in a smaller size pore.
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Affiliation(s)
- Julien Poly
- Laboratoire de Chimie des Polymères Organiques, Université de Bordeaux , CNRS, IPB, 16 avenue Pey Berland, 33607 Pessac, France.
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Sanson C, Diou O, Thévenot J, Ibarboure E, Soum A, Brûlet A, Miraux S, Thiaudière E, Tan S, Brisson A, Dupuis V, Sandre O, Lecommandoux S. Doxorubicin loaded magnetic polymersomes: theranostic nanocarriers for MR imaging and magneto-chemotherapy. ACS Nano 2011; 5:1122-40. [PMID: 21218795 DOI: 10.1021/nn102762f] [Citation(s) in RCA: 256] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Hydrophobically modified maghemite (γ-Fe(2)O(3)) nanoparticles were encapsulated within the membrane of poly(trimethylene carbonate)-b-poly(l-glutamic acid) (PTMC-b-PGA) block copolymer vesicles using a nanoprecipitation process. This formation method gives simple access to highly magnetic nanoparticles (MNPs) (loaded up to 70 wt %) together with good control over the vesicles size (100-400 nm). The simultaneous loading of maghemite nanoparticles and doxorubicin was also achieved by nanoprecipitation. The deformation of the vesicle membrane under an applied magnetic field has been evidenced by small angle neutron scattering. These superparamagnetic hybrid self-assemblies display enhanced contrast properties that open potential applications for magnetic resonance imaging. They can also be guided in a magnetic field gradient. The feasibility of controlled drug release by radio frequency magnetic hyperthermia was demonstrated in the case of encapsulated doxorubicin molecules, showing the viability of the concept of magneto-chemotherapy. These magnetic polymersomes can be used as efficient multifunctional nanocarriers for combined therapy and imaging.
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Affiliation(s)
- Charles Sanson
- Université de Bordeaux/IPB, ENSCBP, 16 avenue Pey Berland, 33607 Pessac Cedex, France
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Nguyen MN, Mougnier SJ, Ibarboure E, Heroguez V. Synthesis of polynorbornene-poly(tert
-butyl acrylate) nanoparticles with original morphologies by tandem ROMP and ATRP in microemulsion. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24569] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Heurtefeu B, Oriou J, Ibarboure E, Cloutet É, Cramail H. Polyisoprene-based block copolymers as supports for metallocene and post-metallocene catalytic systems toward ethylene polymerization. NEW J CHEM 2011. [DOI: 10.1039/c1nj20309f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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