151
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Hibert G, Fauquignon M, Le Meins JF, Pintori D, Grau E, Lecommandoux S, Cramail H. Organogels from trehalose difatty ester amphiphiles. SOFT MATTER 2019; 15:956-962. [PMID: 30652170 DOI: 10.1039/c8sm02244e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Saccharide diesters have been recently shown to be excellent gelators of vegetable oils. In this paper, different fatty acid trehalose diesters were synthesized by a selective enzymatic transesterification performed only on the primary hydroxyl group of the trehalose. The resulting trehalose diesters demonstrated their ability to self-assemble in a large variety of edible vegetable oils with a minimum gelation concentration of 0.25 wt%/v. Microscopic analysis and X-ray scattering studies indicate that the gels are obtained by the self-assembly of trehalose diesters in crystalline fibers constituting the tridimensional network. The rheological study revealed that the properties of the gels depend on the kind of fatty acid grafted on the trehalose but are also influenced by the vegetable oil composition.
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152
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Lecommandoux S, Klok HA, Zhong Z, Deming TJ. Future Directions at the Frontier of Polymer Science and Biology. Biomacromolecules 2019; 20:1-3. [PMID: 30990714 DOI: 10.1021/acs.biomac.8b01785] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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153
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Siepmann J, Faham A, Clas SD, Boyd BJ, Jannin V, Bernkop-Schnürch A, Zhao H, Lecommandoux S, Evans JC, Allen C, Merkel OM, Costabile G, Alexander MR, Wildman RD, Roberts CJ, Leroux JC. Lipids and polymers in pharmaceutical technology: Lifelong companions. Int J Pharm 2019; 558:128-142. [PMID: 30639218 DOI: 10.1016/j.ijpharm.2018.12.080] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/22/2018] [Accepted: 12/24/2018] [Indexed: 02/06/2023]
Abstract
In pharmaceutical technology, lipids and polymers are considered pillar excipients for the fabrication of most dosage forms, irrespective of the administration route. They play various roles ranging from support vehicles to release rate modifiers, stabilizers, solubilizers, permeation enhancers and transfection agents. Focusing on selected applications, which were discussed at the Annual Scientific Meeting of the Gattefossé Foundation 2018, this manuscript recapitulates the fundamental roles of these two important classes of excipients, either employed alone or in combination, and provides insight on their functional properties in various types of drug formulations. Emphasis is placed on oral formulations for the administration of active pharmaceutical ingredients with low aqueous solubilities or poor permeation properties. Additionally, this review article covers the use of lipids and polymers in the design of colloidal injectable delivery systems, and as substrates in additive manufacturing technologies for the production of tailor-made dosage forms.
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154
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Beauté L, McClenaghan N, Lecommandoux S. Photo-triggered polymer nanomedicines: From molecular mechanisms to therapeutic applications. Adv Drug Deliv Rev 2019; 138:148-166. [PMID: 30553952 DOI: 10.1016/j.addr.2018.12.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 10/28/2018] [Accepted: 12/11/2018] [Indexed: 12/11/2022]
Abstract
The use of nanotechnology to improve treatment efficacy and reduce side effects is central to nanomedicine. In this context, stimuli-responsive drug delivery systems (DDS) such as chemical/physical gels or nanoparticles such as polymersomes, micelles or nanogels are particularly promising and are the focus of this review. Several stimuli have been considered but light as an exogenous trigger presents many advantages that are pertinent for clinical applications such as high spatial and temporal control and low cost. Underlying mechanisms required for the release of therapeutic agents in vitro and in vivo range from the molecular scale, namely photoisomerization, hydrophobicity photoswitching, photocleavage or heat generation via nanoheaters, through to the macromolecular scale. As well as these approaches, DDS destabilization, DDS permeation pore unblocking and formation are discussed.
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155
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Le Fer G, Wirotius AL, Brûlet A, Garanger E, Lecommandoux S. Self-Assembly of Stimuli-Responsive Biohybrid Synthetic-b-Recombinant Block Copolypeptides. Biomacromolecules 2018; 20:254-272. [DOI: 10.1021/acs.biomac.8b01390] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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156
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Rosselgong J, Chemin M, Almada CC, Hemery G, Guigner JM, Chollet G, Labat G, Da Silva Perez D, Ham-Pichavant F, Grau E, Grelier S, Lecommandoux S, Cramail H. Synthesis and Self-Assembly of Xylan-Based Amphiphiles: From Bio-Based Vesicles to Antifungal Properties. Biomacromolecules 2018; 20:118-129. [DOI: 10.1021/acs.biomac.8b01210] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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157
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Malho JM, Brand J, Pecastaings G, Ruokolainen J, Gröschel A, Sèbe G, Garanger E, Lecommandoux S. Multifunctional Stimuli-Responsive Cellulose Nanocrystals via Dual Surface Modification with Genetically Engineered Elastin-Like Polypeptides and Poly(acrylic acid). ACS Macro Lett 2018; 7:646-650. [PMID: 35632971 DOI: 10.1021/acsmacrolett.8b00321] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cellulose nanocrystals (CNCs) are promising candidates for a myriad of applications; however, successful utilization of CNCs requires balanced and multifunctional properties, which require ever more applied concepts for supramolecular tailoring. We present here a facile and straightforward route to generate dual functional CNCs using poly(acrylic acid) (PAA) and biosynthetic elastin-like polypeptides (ELPs). We utilize thiol-maleimide chemistry and SI-ATRP to harvest the temperature responsiveness of ELPs and pH sensitivity of PAA to confer multifunctionality to CNCs. Cryo-TEM and light microscopy are used to exhibit reversible temperature response, while atomic force microscopy (AFM) provides detailed information on the particle morphology. The approach is tunable and allows variation of the modifying molecules, inspiring supramolecular engineering beyond the currently presented motifs. The surge of genetically engineered peptides adds further possibilities for future exploitation of the potential of cellulose nanomaterials.
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158
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Jeannot V, Gauche C, Mazzaferro S, Couvet M, Vanwonterghem L, Henry M, Didier C, Vollaire J, Josserand V, Coll JL, Schatz C, Lecommandoux S, Hurbin A. Anti-tumor efficacy of hyaluronan-based nanoparticles for the co-delivery of drugs in lung cancer. J Control Release 2018; 275:117-128. [DOI: 10.1016/j.jconrel.2018.02.024] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 02/09/2018] [Accepted: 02/16/2018] [Indexed: 12/20/2022]
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159
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Peyret A, Zhao H, Lecommandoux S. Preparation and Properties of Asymmetric Synthetic Membranes Based on Lipid and Polymer Self-Assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:3376-3385. [PMID: 29486556 DOI: 10.1021/acs.langmuir.7b04233] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cell membrane asymmetry is a common structural feature of all biological cells. Researchers have tried for decades to better study its formation and its function in membrane-regulated phenomena. In particular, there has been increasing interest in developing synthetic asymmetric membrane models in the laboratory, with the aim of studying basic physical chemistry properties that may be correlated to a relevant biological function. The present article aims to summarize the main presented approaches to prepare asymmetric membranes, which are most often made from lipids, polymers, or a combination of both.
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160
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Bonduelle C, Oliveira H, Gauche C, Huang J, Heise A, Lecommandoux S. Multivalent effect of glycopolypeptide based nanoparticles for galectin binding. Chem Commun (Camb) 2018; 52:11251-11254. [PMID: 27711440 DOI: 10.1039/c6cc06437j] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Synthetic glycopolypeptides are versatile glycopolymers used to conceive bioinspired nanoassemblies. In this work, novel amphiphilic glycopolypeptides were designed to incorporate lactose or galactan in order to prepare polymeric nanoassemblies with sizes below 50 nm. The bioactivity of the two different outer surface sugar units was evaluated by defining glycan relative binding affinities to human galectins 1 and 3. A specific multivalent effect was found only for polymeric nanoparticles displaying galactan with a significant increase of the binding activity as compared to free glycan in solution. Such synthetic designs present great potential as therapeutic tools to address galectin related pathologies.
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161
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Ibrahimova V, Denisov SA, Vanvarenberg K, Verwilst P, Préat V, Guigner JM, McClenaghan ND, Lecommandoux S, Fustin CA. Photosensitizer localization in amphiphilic block copolymers controls photodynamic therapy efficacy. NANOSCALE 2017; 9:11180-11186. [PMID: 28749509 DOI: 10.1039/c7nr04403h] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Localization of the photosensitizer conjugation site in amphiphilic block copolymers is shown to have a great impact on photodynamic therapy efficiency. To this end, an asymmetric multifunctional derivative of the azadipyrromethene boron difluoride chelate (aza-BODIPY) was synthesized and inserted at specific locations in polypeptide-based rod-coil amphiphilic block copolymers. A study of the photophysical properties of the vesicle nanocarriers, obtained by self-assembly of these copolymers, as well as in vitro tests on two cancer cell lines were performed. This study aims at providing guidelines for the optimization of the synthetic design of therapeutic nanomedicines with minimal amounts of photosensitive molecules.
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162
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Xu J, Zhang S, Machado A, Lecommandoux S, Sandre O, Gu F, Colin A. Controllable Microfluidic Production of Drug-Loaded PLGA Nanoparticles Using Partially Water-Miscible Mixed Solvent Microdroplets as a Precursor. Sci Rep 2017; 7:4794. [PMID: 28684775 PMCID: PMC5500499 DOI: 10.1038/s41598-017-05184-5] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 05/25/2017] [Indexed: 11/22/2022] Open
Abstract
We present a versatile continuous microfluidic flow-focusing method for the production of Doxorubicin (DOX) or Tamoxifen (TAM)-loaded poly(D,L-lactic-co-glycolic acid) (PLGA) nanoparticles (NPs). We use a partially water-miscible solvent mixture (dimethyl sulfoxide DMSO+ dichloromethane DCM) as precursor drug/polymer solution for NPs nucleation. We extrude this partially water-miscible solution into an aqueous medium and synthesized uniform PLGA NPs with higher drug loading ability and longer sustained-release ability than conventional microfluidic or batch preparation methods. The size of NPs could be precisely tuned by changing the flow rate ratios, polymer concentration, and volume ratio of DCM to DMSO (VDCM/VDMSO) in the precursor emulsion. We investigated the mechanism of the formation of NPs and the effect of VDCM/VDMSO on drug release kinetics. Our work suggests that this original, rapid, facile, efficient and low-cost method is a promising technology for high throughput NP fabrication. For the two tested drugs, one hydrophilic (Doxorubicin) the other one hydrophobic (Tamoxifen), encapsulation efficiency (EE) as high as 88% and mass loading content (LC) higher than 25% were achieved. This new process could be extended as an efficient and large scale NP production method to benefit to fields like controlled drug release and nanomedicine.
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163
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Petitdemange R, Garanger E, Bataille L, Bathany K, Garbay B, Deming TJ, Lecommandoux S. Tuning Thermoresponsive Properties of Cationic Elastin-like Polypeptides by Varying Counterions and Side-Chains. Bioconjug Chem 2017; 28:1403-1412. [DOI: 10.1021/acs.bioconjchem.7b00082] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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164
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Widder K, MacEwan SR, Garanger E, Núñez V, Lecommandoux S, Chilkoti A, Hinderberger D. Characterisation of hydration and nanophase separation during the temperature response in hydrophobic/hydrophilic elastin-like polypeptide (ELP) diblock copolymers. SOFT MATTER 2017; 13:1816-1822. [PMID: 28169384 DOI: 10.1039/c6sm02427k] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
To understand the complex nanoscale dehydration process during the lower critical solution temperature (LCST) based inverse phase transition of a class of thermoresponsive biopolymers, diblock elastin-like polypeptides (ELPs) were investigated by spin probing continuous wave electron paramagnetic resonance (CW EPR) spectroscopy. The diblock copolymers composed of a hydrophobic block and a hydrophilic block showed different mechanisms of a temperature-driven phase transition. While the phase transition temperature is a function of the hydrophobic mass fraction of the diblock ELPs, the hydrophilic block length determines the molecular structure of the polymer aggregates formed above the transition temperature. When the weight ratio of hydrophilic block length to hydrophobic block length is greater than or equal to 0.3, the polymer aggregates consist of a hydrophobic core and a hydrophilic corona. The interface of these two regions become permeable at temperatures above the transition temperature. In case of smaller ratios, the aggregating hydrophobic parts of the polymer enclose the hydrated hydrophilic blocks, that are too small to form a hydrophilic corona, leading to bigger and less dense aggregates of higher polarity.
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165
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Petitdemange R, Garanger E, Bataille L, Dieryck W, Bathany K, Garbay B, Deming TJ, Lecommandoux S. Selective Tuning of Elastin-like Polypeptide Properties via Methionine Oxidation. Biomacromolecules 2017; 18:544-550. [DOI: 10.1021/acs.biomac.6b01696] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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166
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Lamarzelle O, Hibert G, Lecommandoux S, Grau E, Cramail H. A thioglycerol route to bio-based bis-cyclic carbonates: poly(hydroxyurethane) preparation and post-functionalization. Polym Chem 2017. [DOI: 10.1039/c7py00556c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present work is dedicated to the design of novel sulfur-substituted cyclic carbonates from thioglycerol, fatty acids and sugar derivatives.
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167
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Hibert G, Grau E, Pintori D, Lecommandoux S, Cramail H. ADMET polymerization of α,ω-unsaturated glycolipids: synthesis and physico-chemical properties of the resulting polymers. Polym Chem 2017. [DOI: 10.1039/c7py00788d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Trehalose diesters exhibiting α,ω-unsaturation are glycolipids which can be easily polymerized by ADMET (acyclic diene metathesis) polymerization.
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168
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Le Fer G, Portes D, Goudounet G, Guigner JM, Garanger E, Lecommandoux S. Design and self-assembly of PBLG-b-ELP hybrid diblock copolymers based on synthetic and elastin-like polypeptides. Org Biomol Chem 2017; 15:10095-10104. [DOI: 10.1039/c7ob01945a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and self-assembly of amphiphilic copolypeptides containing a recombinant elastin-like polypeptide block used as a macroinitiator for the ROP of γ-BLG NCA are presented.
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169
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Jeannot V, Mazzaferro S, Lavaud J, Vanwonterghem L, Henry M, Arboléas M, Vollaire J, Josserand V, Coll JL, Lecommandoux S, Schatz C, Hurbin A. Targeting CD44 receptor-positive lung tumors using polysaccharide-based nanocarriers: Influence of nanoparticle size and administration route. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:921-932. [DOI: 10.1016/j.nano.2015.11.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 11/02/2015] [Accepted: 11/18/2015] [Indexed: 01/25/2023]
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170
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Goñi-de-Cerio F, Thevenot J, Oliveira H, Pérez-Andrés E, Berra E, Masa M, Suárez-Merino B, Lecommandoux S, Heredia P. Cellular Uptake and Cytotoxic Effect of Epidermal Growth Factor Receptor Targeted and Plitidepsin Loaded Co-Polymeric Polymersomes on Colorectal Cancer Cell Lines. J Biomed Nanotechnol 2016; 11:2034-49. [PMID: 26554161 DOI: 10.1166/jbn.2015.2148] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Encapsulating chemotherapy drugs in targeted nanodelivery systems is one of the most promising approaches to tackle cancer disease, avoiding side effects of common treatment. In the last decade, several nanocarriers with different nature have been tested, but polypeptide-based copolymers have attracted considerable attention for their biocompatibility, controlled and slow biodegradability as well as their low toxicity. In this work, we synthesized, characterized and evaluated poly(trimethylene carbonate)-bock-poly(L-glutamic acid) derived polymersomes, targeted to epidermal growth factor receptor (EGFR), loaded with plitidepsin and ultimately tested in HT29 and LS174T colorectal cancer cell lines for specificity and efficacy. Furthermore, morphology, physico-chemical properties and plitidepsin loading were carefully investigated. A thorough in vitro cytotoxicity analysis of the unloaded polymersomes was carried out for biocompatibility check, studying viability, cell membrane asymmetry and reactive oxygen species levels. Those cytotoxicity assays showed good biocompatibility for plitidepsin-unloaded polymersomes. Cellular uptake and cytotoxic effect of EGFR targeted and plitidepsin loaded polymersome indicated that colorectal cancer cell lines were.more sensitive to anti-EGFR-drug-loaded than untargeted drug-loaded polymersomes. Also, in both cell lines, the use of untargeted polymersomes greatly reduced plitidepsin cytotoxicity as well as the cellular uptake, indicating that the use of this targeted nanocarrier is a promising approach to tackle colorectal cancer disease and avoid the undesired effects of the usual treatment. Furthermore, in vivo assays support the in vitro conclusions that EGFR targeted polymersomes could be a good drug delivery system. This work provides a proof of concept for the use of encapsulated targeted drugs as future therapeutic treatments for cancer.
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171
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Lecommandoux S, Garanger É. Precision polymers with biological activity: Design towards self-assembly and bioactivity. CR CHIM 2016. [DOI: 10.1016/j.crci.2015.06.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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172
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Coumes F, Beauté L, Domurado D, Li S, Lecommandoux S, Coudane J, Darcos V. Self-assembly of well-defined triblock copolymers based on poly(lactic acid) and poly(oligo(ethylene glycol) methyl ether methacrylate) prepared by ATRP. RSC Adv 2016. [DOI: 10.1039/c6ra07535e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Self-assembly of a series of amphiphilic poly(oligo(ethylene glycol) methyl ether methacrylate)-block-poly(lactic acid)-block-poly(oligo(ethylene glycol) methyl ether methacrylate) (P(OEGMA)-b-PLLA-b-P(OEGMA)) copolymers was investigated.
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173
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Tron A, Peyret A, Thevenot J, Bofinger R, Lecommandoux S, McClenaghan ND. A prototype reversible polymersome-stabilized H2S photoejector operating under pseudophysiological conditions. Org Biomol Chem 2016; 14:6394-7. [DOI: 10.1039/c6ob01155a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polymersome capsules are shown to solubilise photolabile hydrosulfide-containing (2), as well as hydroxylated (1), malachite green derivatives in their leuco-forms in aqueous buffer solution.
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174
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Bonduelle C, Makni F, Severac L, Piedra-Arroni E, Serpentini CL, Lecommandoux S, Pratviel G. Smart metallopoly(l-glutamic acid) polymers: reversible helix-to-coil transition at neutral pH. RSC Adv 2016. [DOI: 10.1039/c6ra19753a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Coordination to Zn species can be reversibly used to control the helix-to-coil transition of synthetic poly(l-glutamic acid) polymers at a neutral pH of 7.
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175
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Garanger E, MacEwan SR, Sandre O, Brûlet A, Bataille L, Chilkoti A, Lecommandoux S. Structural Evolution of a Stimulus-Responsive Diblock Polypeptide Micelle by Temperature Tunable Compaction of its Core. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01371] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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176
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Bataille L, Dieryck W, Hocquellet A, Cabanne C, Bathany K, Lecommandoux S, Garbay B, Garanger E. Expression and purification of short hydrophobic elastin-like polypeptides with maltose-binding protein as a solubility tag. Protein Expr Purif 2015; 110:165-71. [DOI: 10.1016/j.pep.2015.03.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 03/20/2015] [Accepted: 03/22/2015] [Indexed: 12/19/2022]
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177
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Legros C, De Pauw-Gillet MC, Tam KC, Taton D, Lecommandoux S. Crystallisation-driven self-assembly of poly(2-isopropyl-2-oxazoline)-block-poly(2-methyl-2-oxazoline) above the LCST. SOFT MATTER 2015; 11:3354-9. [PMID: 25793873 DOI: 10.1039/c5sm00313j] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The solution behaviour in water of a polyoxazoline-type block copolymer, namely poly(2-isopropyl-2-oxazoline)-block-poly(2-methyl-2-oxazoline), denoted as P(iPrOx-b-MeOx), above the lower critical solution temperature (LCST) of the PiPrOx block was exploited to induce a temporary or permanent self-assembly. Spherical micelles were first obtained and could be disassembled in a reversible manner when kept for a short period of time (i.e. t < 90 min) above the LCST, and cooled down to room temperature. In contrast, annealing the copolymer solution for more than 90 min at 65 °C induced the crystallisation of the PiPrOx block, as evidenced by wide angle X-ray scattering (WAXS) experiments. This crystallisation-driven self-assembly phenomenon resulted in different morphologies, including spherical and distorted crystallised micelles and micron-size fibers, their relative proportion varies with the annealing time. Formation of micron-size range fiber-like structures might be explained by the re-organization of parent crystallised micelles. The crystal structure, as determined by WAXS, appeared to be identical to that of the PiPrOx homopolymer.
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178
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Jeannot V, Mazzaferro S, Lavaud J, Josserand V, Henry M, Schatz C, Lecommandoux S, Coll J, Hurbin A. Polysaccharride-based nanocarriers targeting CD44 for lung cancer treatment. Rev Mal Respir 2015. [DOI: 10.1016/j.rmr.2015.02.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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179
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Hannecart A, Stanicki D, Vander Elst L, Muller RN, Lecommandoux S, Thévenot J, Bonduelle C, Trotier A, Massot P, Miraux S, Sandre O, Laurent S. Nano-thermometers with thermo-sensitive polymer grafted USPIOs behaving as positive contrast agents in low-field MRI. NANOSCALE 2015; 7:3754-67. [PMID: 25644780 DOI: 10.1039/c4nr07064j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Two commercial statistical copolymers of ethylene oxide and propylene oxide, Jeffamine® M-2005 (PEO5-st-PPO37) and M-2070 (PEO46-st-PPO13), exhibiting lower critical solution temperature (LCST) in water, were grafted onto the surface of ultra-small superparamagnetic iron oxide nanoparticles (USPIOs) using silanization and amide-bond coupling reactions. The LCSTs of the polymers in solution were measured by dynamic light scattering (DLS) and nuclear magnetic resonance (NMR). In accordance with the compositions of EO vs. PO, the transition temperature was measured to be 22 ± 2 °C for M-2005 by both DLS and NMR, while the LCST was much higher, 52 ± 2 °C, for M-2070 (a second transition was also detected above 80 °C by NMR in that case, ascribed to the full dehydration of chains at the molecular level). The resulting polymer-grafted USPIOs exhibit a temperature-responsive colloidal behaviour, their surface reversibly changing from hydrophilic below LCST to hydrophobic above it. This phenomenon was utilised to design thermo-sensitive contrast agents for MRI. Transverse relaxivities (r2) of the USPIO@PEO5-st-PPO37 core-shell nanoparticles were measured at 8.25, 20, 60, and 300 MHz. Nuclear magnetic resonance dispersion (NMRD) profiles, giving longitudinal relaxivities (r1) between 0.01 and 60 MHz, were acquired at temperatures ranging from 15 to 50 °C. For all tested frequencies except 300 MHz, both r1 and r2 decrease with temperature and show an inflection point at 25 °C, near the LCST. To illustrate the interest of such polymer-coated USPIOs for MRI thermometry, sample tubes were imaged on both low-field (8.25 MHz/0.194 Tesla) and high-field (300 MHz/7.05 Tesla) MRI scanners with either T1- or T2*-weighted spin echo sequences. The positive contrast on low-field MR images and the perfect linearity of the signal with a T2*-weighted sequence over the entire temperature range 15-50 °C render these LCST polymer coated USPIOs interesting positive contrast agents, also working as "nano-thermometers".
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180
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Bacinello D, Garanger E, Taton D, Tam KC, Lecommandoux S. Tailored drug-release from multi-functional polymer-peptide hybrid vesicles. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2014.09.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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181
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Liau WT, Bonduelle C, Brochet M, Lecommandoux S, Kasko AM. Synthesis, Characterization, and Biological Interaction of Glyconanoparticles with Controlled Branching. Biomacromolecules 2014; 16:284-94. [DOI: 10.1021/bm501482q] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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182
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Legros C, Wirotius AL, De Pauw-Gillet MC, Tam KC, Taton D, Lecommandoux S. Poly(2-oxazoline)-based nanogels as biocompatible pseudopolypeptide nanoparticles. Biomacromolecules 2014; 16:183-91. [PMID: 25409266 DOI: 10.1021/bm501393q] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Hydrophilic nanogels based on partially hydrolyzed poly(2-ethyl-2-oxazoline) were synthesized in dilute aqueous media in the presence of 1,6-hexanediol diglycidyl ether as a cross-linker. Nanogel formation was monitored by DLS and HSQC NMR spectroscopy, and the final nano-objects were characterized by DLS, TEM, AFM, and NanoSight analyses. Nanogels with a hydrodynamic radius of 78 nm exhibiting a slight positive surface charge were obtained. MTS assays (cell metabolic activity test) evidenced that nanogels were nontoxic in the investigated concentration range (i.e., 0.1 to 400 μg/mL) and that no specific interaction with bovine serum albumin was observed.
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183
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Jeannot V, Mazzaferro S, Lavaud J, Josserand V, Henry M, Schatz C, Lecommandoux S, Hurbin A, Coll J. 792: Polysaccharide-based nanocarriers targeting CD44 for lung cancer treatment. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50697-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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184
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Bacinello D, Garanger E, Taton D, Tam KC, Lecommandoux S. Enzyme-Degradable Self-Assembled Nanostructures from Polymer–Peptide Hybrids. Biomacromolecules 2014; 15:1882-8. [DOI: 10.1021/bm500296n] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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185
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Peters RJRW, Marguet M, Marais S, Fraaije MW, van Hest JCM, Lecommandoux S. Cascade Reactions in Multicompartmentalized Polymersomes. Angew Chem Int Ed Engl 2013; 53:146-50. [DOI: 10.1002/anie.201308141] [Citation(s) in RCA: 399] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Indexed: 11/09/2022]
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186
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Peters RJRW, Marguet M, Marais S, Fraaije MW, van Hest JCM, Lecommandoux S. Cascade Reactions in Multicompartmentalized Polymersomes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201308141] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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187
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Pourtau L, Oliveira H, Thevenot J, Wan Y, Brisson AR, Sandre O, Miraux S, Thiaudiere E, Lecommandoux S. Antibody-functionalized magnetic polymersomes: in vivo targeting and imaging of bone metastases using high resolution MRI. Adv Healthc Mater 2013; 2:1420-4. [PMID: 23606565 DOI: 10.1002/adhm.201300061] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Indexed: 01/29/2023]
Abstract
Multifunctional polymersomes loaded with maghemite nanoparticles and grafted with an antibody, directed against human endothelial receptor 2, are developed as novel MRI contrast agents for bone metastasis imaging. Upon administration in mice bearing bone tumor grown from human breast cancer cells, MR images show targeting and enhanced retention of antibody-labeled polymersomes at the tumor site.
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188
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Salva R, Le Meins JF, Sandre O, Brûlet A, Schmutz M, Guenoun P, Lecommandoux S. Polymersome shape transformation at the nanoscale. ACS NANO 2013; 7:9298-311. [PMID: 24047230 DOI: 10.1021/nn4039589] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Polymer vesicles, also named polymersomes, are valuable candidates for drug delivery and micro- or nanoreactor applications. As far as drug delivery is concerned, the shape of the carrier is believed to have a strong influence on the biodistribution and cell internalization. Polymersomes can be submitted to an osmotic imbalance when injected in physiological media leading to morphological changes. To understand these osmotic stress-induced variations in membrane properties and shapes, several nanovesicles made of the graft polymer poly(dimethylsiloxane)-g-poly(ethylene oxide) (PDMS-g-PEO) or the triblock copolymer PEO-b-PDMS-b-PEO were osmotically stressed and observed by light scattering, neutron scattering (SANS), and cryo-transmission electron microscopy (cryo-TEM). Hypotonic shock leads to a swelling of the vesicles, comparable to optically observable giant polymersomes, and hypertonic shock leads to collapsed structures such as stomatocytes and original nested vesicles, the latter being only observed for bilayers classically formed by amphiphilic copolymers. Complementary SANS and cryo-TEM experiments are shown to be in quantitative agreement and highlight the importance of the membrane structure on the behavior of these nanopolymersomes under hypertonic conditions as the final morphology reached depends whether or not the copolymers assemble into a bilayer. The vesicle radius and membrane curvature are also shown to be critical parameters for such transformations: the shape evolution trajectory agrees with theoretical models only for large enough vesicle radii above a threshold value around 4 times the membrane thickness.
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189
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Bonduelle C, Lecommandoux S. Synthetic Glycopolypeptides as Biomimetic Analogues of Natural Glycoproteins. Biomacromolecules 2013; 14:2973-83. [DOI: 10.1021/bm4008088] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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190
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Oliveira H, Pérez-Andrés E, Thevenot J, Sandre O, Berra E, Lecommandoux S. Magnetic field triggered drug release from polymersomes for cancer therapeutics. J Control Release 2013; 169:165-70. [PMID: 23353805 DOI: 10.1016/j.jconrel.2013.01.013] [Citation(s) in RCA: 237] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2012] [Revised: 12/23/2012] [Accepted: 01/13/2013] [Indexed: 12/16/2022]
Abstract
Local and temporal control of drug release has for long been a main focus in the development of novel drug carriers. Polymersomes, which can load both hydrophilic and hydrophobic species and, at the same time, be tailored to respond to a desired stimulus, have drawn much attention over the last decade. Here we describe polymersomes able to encapsulate up to 6% (w/w) of doxorubicin (DOX) together with 30% (w/w) of superparamagnetic iron oxide nanoparticles (USPIO; γ-Fe2O3). Upon internalization in HeLa cells and when a high frequency AC magnetic field (14mT at 750kHz) was applied, the developed delivery system elicited an 18% increase in cell toxicity, associated with augmented DOX release kinetics. In order to ensure that the observed cytotoxicity arose from the increased doxorubicin release and not from a pure magnetic hyperthermia effect, polymersomes loaded with magnetic nanoparticles alone were also tested. In this case, no increased toxicity was observed. We hypothesize that the magnetic field is inducing a very local hyperthermia effect at the level of the polymersome membrane, increasing drug release. This approach opens new perspectives in the development of smart delivery systems able to release drug upon demand and therefore, improving treatment control.
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191
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Bonduelle C, Mazzaferro S, Huang J, Lambert O, Heise A, Lecommandoux S. Synthesis and self-assembly of branched glycopolypeptides: effect of topology and conformation. Faraday Discuss 2013; 166:137-50. [DOI: 10.1039/c3fd00082f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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192
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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193
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Marguet M, Bonduelle C, Lecommandoux S. Multicompartmentalized polymeric systems: towards biomimetic cellular structure and function. Chem Soc Rev 2013; 42:512-29. [DOI: 10.1039/c2cs35312a] [Citation(s) in RCA: 380] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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194
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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195
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196
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Arosio P, Thévenot J, Orlando T, Orsini F, Corti M, Mariani M, Bordonali L, Innocenti C, Sangregorio C, Oliveira H, Lecommandoux S, Lascialfari A, Sandre O. Hybrid iron oxide-copolymer micelles and vesicles as contrast agents for MRI: impact of the nanostructure on the relaxometric properties. J Mater Chem B 2013; 1:5317-5328. [DOI: 10.1039/c3tb00429e] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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197
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Thévenot J, Oliveira H, Sandre O, Lecommandoux S. Magnetic responsive polymer composite materials. Chem Soc Rev 2013; 42:7099-116. [DOI: 10.1039/c3cs60058k] [Citation(s) in RCA: 417] [Impact Index Per Article: 37.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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198
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De Oliveira H, Thevenot J, Lecommandoux S. Smart polymersomes for therapy and diagnosis: fast progress toward multifunctional biomimetic nanomedicines. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2012; 4:525-46. [DOI: 10.1002/wnan.1183] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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199
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200
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Garanger E, Lecommandoux S. Towards Bioactive Nanovehicles Based on Protein Polymers. Angew Chem Int Ed Engl 2012; 51:3060-2. [DOI: 10.1002/anie.201107734] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Indexed: 11/12/2022]
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