1
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Daou D, Zarate Y, Maaloum M, Collin D, Fleith G, Constantin D, Moulin E, Giuseppone N. Out-of-Equilibrium Mechanical Disruption of β-Amyloid-Like Fibers using Light-Driven Molecular Motors. Adv Mater 2024; 36:e2311293. [PMID: 38236822 DOI: 10.1002/adma.202311293] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/10/2024] [Indexed: 01/26/2024]
Abstract
Artificial molecular motors have the potential to generate mechanical work on their environment by producing autonomous unidirectional motions when supplied with a source of energy. However, the harnessing of this mechanical work to subsequently activate various endoenergetic processes that can be useful in materials science remains elusive. Here, it is shown that by integrating a light-driven rotary motor through hydrogen bonds in a β-amyloid-like structure forming supramolecular hydrogels, the mechanical work generated during the constant rotation of the molecular machine under UV irradiation is sufficient to disrupt the β-amyloid fibers and to trigger a gel-to-sol transition at macroscopic scale. This melting of the gel under UV irradiation occurs 25 °C below the temperature needed to melt it by solely using thermal activation. In the dark, a reversible sol-gel transition is observed as the system fully recovers its original microstructure, thus illustrating the possible access to new kinds of motorized materials that can be controlled by advanced out-of-equilibrium thermodynamics.
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Affiliation(s)
- Dania Daou
- SAMS Research Group, CNRS, Université de Strasbourg, Institut Charles Sadron UPR 22, Strasbourg, 67000, France
| | - Yohan Zarate
- SAMS Research Group, CNRS, Université de Strasbourg, Institut Charles Sadron UPR 22, Strasbourg, 67000, France
| | - Mounir Maaloum
- SAMS Research Group, CNRS, Université de Strasbourg, Institut Charles Sadron UPR 22, Strasbourg, 67000, France
| | | | | | - Doru Constantin
- CNRS, Institut Charles Sadron UPR 22, Strasbourg, 67000, France
| | - Emilie Moulin
- SAMS Research Group, CNRS, Université de Strasbourg, Institut Charles Sadron UPR 22, Strasbourg, 67000, France
| | - Nicolas Giuseppone
- SAMS Research Group, CNRS, Université de Strasbourg, Institut Charles Sadron UPR 22, Strasbourg, 67000, France
- Institut Universitaire de France (IUF), Paris, 75005, France
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2
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Gréa T, Jacquot G, Durand A, Mathieu C, Gasser A, Zhu C, Banerjee M, Hucteau E, Mallard J, Lopez Navarro P, Popescu BV, Thomas E, Kryza D, Sidi-Boumedine J, Ferrauto G, Gianolio E, Fleith G, Combet J, Brun S, Erb S, Cianferani S, Charbonnière LJ, Fellmann L, Mirjolet C, David L, Tillement O, Lux F, Harlepp S, Pivot X, Detappe A. Subcutaneous Administration of a Zwitterionic Chitosan-Based Hydrogel for Controlled Spatiotemporal Release of Monoclonal Antibodies. Adv Mater 2023:e2308738. [PMID: 38105299 DOI: 10.1002/adma.202308738] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/14/2023] [Indexed: 12/19/2023]
Abstract
Subcutaneous (SC) administration of monoclonal antibodies (mAbs) is a proven strategy for improving therapeutic outcomes and patient compliance. The current FDA-/EMA-approved enzymatic approach, utilizing recombinant human hyaluronidase (rHuPH20) to enhance mAbs SC delivery, involves degrading the extracellular matrix's hyaluronate to increase tissue permeability. However, this method lacks tunable release properties, requiring individual optimization for each mAb. Seeking alternatives, physical polysaccharide hydrogels emerge as promising candidates due to their tunable physicochemical and biodegradability features. Unfortunately, none have demonstrated simultaneous biocompatibility, biodegradability, and controlled release properties for large proteins (≥150 kDa) after SC delivery in clinical settings. Here, a novel two-component hydrogel comprising chitosan and chitosan@DOTAGA is introduced that can be seamlessly mixed with sterile mAbs formulations initially designed for intravenous (IV) administration, repurposing them as novel tunable SC formulations. Validated in mice and nonhuman primates (NHPs) with various mAbs, including trastuzumab and rituximab, the hydrogel exhibited biodegradability and biocompatibility features. Pharmacokinetic studies in both species demonstrated tunable controlled release, surpassing the capabilities of rHuPH20, with comparable parameters to the rHuPH20+mAbs formulation. These findings signify the potential for rapid translation to human applications, opening avenues for the clinical development of this novel SC biosimilar formulation.
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Affiliation(s)
- Thomas Gréa
- Institut Lumière Matière, UMR 5306, Université Claude Bernard Lyon1-CNRS, University of Lyon, Villeurbanne Cedex, 69622, France
- Université Claude Bernard Lyon 1, INSA Lyon, Jean Monnet University, CNRS, UMR 5223 Ingénierie des Matériaux Polymères (IMP), Villeurbanne Cedex, 69622, France
| | - Guillaume Jacquot
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Nano-H, St Quentin Fallavier, 38070, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Arthur Durand
- Institut Lumière Matière, UMR 5306, Université Claude Bernard Lyon1-CNRS, University of Lyon, Villeurbanne Cedex, 69622, France
- MexBrain, 13 avenue Albert Einstein, Villeurbanne, 69100, France
| | - Clélia Mathieu
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Adeline Gasser
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Chen Zhu
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
- Equipe de Synthèse Pour l'Analyse, Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/University of Strasbourg, Strasbourg, Cedex 2 67087, France
| | - Mainak Banerjee
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
- Equipe de Synthèse Pour l'Analyse, Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/University of Strasbourg, Strasbourg, Cedex 2 67087, France
| | - Elyse Hucteau
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Biomedicine Research Centre of Strasbourg (CRBS), Mitochondria, oxidative stress, and muscular protection laboratory (UR 3072), Strasbourg, 67000, France
| | - Joris Mallard
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Biomedicine Research Centre of Strasbourg (CRBS), Mitochondria, oxidative stress, and muscular protection laboratory (UR 3072), Strasbourg, 67000, France
| | - Pedro Lopez Navarro
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Bogdan V Popescu
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Eloise Thomas
- LAGEPP University Claude Bernard Lyon 1, CNRS UMR 5007, Villeurbanne Cedex, 69622, France
| | - David Kryza
- LAGEPP University Claude Bernard Lyon 1, CNRS UMR 5007, Villeurbanne Cedex, 69622, France
- Imthernat Plateform, Hospices Civils of Lyon, Lyon, 69002, France
| | - Jacqueline Sidi-Boumedine
- LAGEPP University Claude Bernard Lyon 1, CNRS UMR 5007, Villeurbanne Cedex, 69622, France
- Imthernat Plateform, Hospices Civils of Lyon, Lyon, 69002, France
| | - Giuseppe Ferrauto
- Molecular Imaging Center, Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, 10124, Italy
| | - Eliana Gianolio
- Molecular Imaging Center, Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, 10124, Italy
| | - Guillaume Fleith
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, 67034, Strasbourg Cedex 2, BP 84047, France
| | - Jérôme Combet
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, 67034, Strasbourg Cedex 2, BP 84047, France
| | | | - Stéphane Erb
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
- Laboratoire de Spectrométrie de Masse BioOrganique, IPHC UMR 7178, University of Strasbourg, CNRS, Strasbourg, 67087, France
- Infrastructure Nationale de Protéomique ProFI - FR2048, Strasbourg, 67087, France
| | - Sarah Cianferani
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
- Laboratoire de Spectrométrie de Masse BioOrganique, IPHC UMR 7178, University of Strasbourg, CNRS, Strasbourg, 67087, France
- Infrastructure Nationale de Protéomique ProFI - FR2048, Strasbourg, 67087, France
| | - Loïc J Charbonnière
- Equipe de Synthèse Pour l'Analyse, Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/University of Strasbourg, Strasbourg, Cedex 2 67087, France
| | - Lyne Fellmann
- SILABE, Université of Strasbourg, fort Foch, Niederhausbergen, 67207, France
| | - Céline Mirjolet
- Radiation Oncology Department, Preclinical Radiation Therapy and Radiobiology Unit, Centre Georges-François Leclerc, Unicancer, Dijon, 21000, France
- TIReCS team, INSERM UMR 1231, Dijon, 21000, France
| | - Laurent David
- Université Claude Bernard Lyon 1, INSA Lyon, Jean Monnet University, CNRS, UMR 5223 Ingénierie des Matériaux Polymères (IMP), Villeurbanne Cedex, 69622, France
| | - Olivier Tillement
- Institut Lumière Matière, UMR 5306, Université Claude Bernard Lyon1-CNRS, University of Lyon, Villeurbanne Cedex, 69622, France
| | - François Lux
- Institut Lumière Matière, UMR 5306, Université Claude Bernard Lyon1-CNRS, University of Lyon, Villeurbanne Cedex, 69622, France
- University Institute of France (IUF), Paris, 75231, France
| | - Sébastien Harlepp
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Xavier Pivot
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Alexandre Detappe
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
- Equipe de Synthèse Pour l'Analyse, Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/University of Strasbourg, Strasbourg, Cedex 2 67087, France
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3
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Bigo Simon A, Fores JR, Criado-Gonzalez M, Blandin L, Runser JY, Senger B, Fleith G, Schmutz M, Schurhammer R, Chaumont A, Schaaf P, Combet J, Jierry L. Mechanistic Insights into Hyaluronic Acid Induced Peptide Nanofiber Organization in Supramolecular Hydrogels. Biomacromolecules 2023; 24:3794-3805. [PMID: 37535455 DOI: 10.1021/acs.biomac.3c00445] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Composite hydrogels composed of low-molecular-weight peptide self-assemblies and polysaccharides are gaining great interest as new types of biomaterials. Interactions between polysaccharides and peptide self-assemblies are well reported, but a molecular picture of their impact on the resulting material is still missing. Using the phosphorylated tripeptide precursor Fmoc-FFpY (Fmoc, fluorenylmethyloxycarbonyl; F, phenylalanine; Y, tyrosine; p, phosphate group), we investigated how hyaluronic acid (HA) influences the enzyme-assisted self-assembly of Fmoc-FFY generated in situ in the presence of alkaline phosphatase (AP). In the absence of HA, Fmoc-FFY peptides are known to self-assemble in nanometer thick and micrometer long fibers. The presence of HA leads to the spontaneous formation of bundles of several micrometers thickness. Using fluorescence recovery after photobleaching (FRAP), we find that in the bundles both (i) HA colocalizes with the peptide self-assemblies and (ii) its presence in the bundles is highly dynamic. The attractive interaction between negatively charged peptide fibers and negatively charged HA chains is explained through molecular dynamic simulations that show the existence of hydrogen bonds. Whereas the Fmoc-FFY peptide self-assembly itself is not affected by the presence of HA, this polysaccharide organizes the peptide nanofibers in a nematic phase visible by small-angle X-ray scattering (SAXS). The mean distance d between the nanofibers decreases by increasing the HA concentration c, but remains always larger than the diameter of the peptide nanofibers, indicating that they do not interact directly with each other. At a high enough HA concentration, the nematic organization transforms into an ordered 2D hexagonal columnar phase with a nanofiber distance d of 117 Å. Depletion interaction generated by the polysaccharides can explain the experimental power law variation d ∼ c - 1 / 4 and is responsible for the bundle formation and organization. Such behavior is thus suggested for the first time on nano-objects using polymers partially adsorbing on self-assembled peptide nanofibers.
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Affiliation(s)
- Alexis Bigo Simon
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84047, France
- Université de Strasbourg, Faculté de Chimie, UMR7140, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
| | - Jennifer Rodon Fores
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84047, France
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, CRBS, 1 rue Eugène Boeckel, 67000 Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, 67000 Strasbourg, France
| | - Miryam Criado-Gonzalez
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84047, France
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, CRBS, 1 rue Eugène Boeckel, 67000 Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, 67000 Strasbourg, France
| | - Lucille Blandin
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84047, France
| | - Jean-Yves Runser
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84047, France
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, CRBS, 1 rue Eugène Boeckel, 67000 Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, 67000 Strasbourg, France
| | - Bernard Senger
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, CRBS, 1 rue Eugène Boeckel, 67000 Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, 67000 Strasbourg, France
| | - Guillaume Fleith
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84047, France
| | - Marc Schmutz
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84047, France
| | - Rachel Schurhammer
- Université de Strasbourg, Faculté de Chimie, UMR7140, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
| | - Alain Chaumont
- Université de Strasbourg, Faculté de Chimie, UMR7140, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
| | - Pierre Schaaf
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84047, France
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, CRBS, 1 rue Eugène Boeckel, 67000 Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, 8 rue Sainte Elisabeth, 67000 Strasbourg, France
- Université de Strasbourg, 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84047, France
| | - Jérôme Combet
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84047, France
| | - Loïc Jierry
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR22), 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84047, France
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Viswanatha-Pillai G, Vargas-Jentzsch A, Carvalho A, Fleith G, Gavat O, Moulin E, Giuseppone N, Guenet JM. Thermodynamics, morphology and molecular structure of molecular compounds in trisamide triarylamine organogels and pseudo-organogels. Soft Matter 2023. [PMID: 37325836 DOI: 10.1039/d3sm00624g] [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] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In this paper, potentially-gelling binary systems are investigated by DSC, X-ray and Electron microscopy in order to assess their gel status and the role of the Hansen solubility parameter. The low molecular weight organogelator is a Triarylamine Trisamide (TATA) while the solvents consist of a series of halogeno-ethanes and of toluene. Temperature-concentration phase diagrams are mapped out from DSC traces. They reveal the existence of one or more TATA/solvent molecular compounds. The X-ray data, that display different diffraction patterns depending on the solvent and the temperature, show the existence of different molecular structures, and thus confirm the outcome of the T-C phase diagram. Tentative molecular organizations are also discussed in light of previous results obtained in the solid state. The morphology by TEM on dilute systems, and TEM on more concentrated systems highlight the degree of physical cross-links, which leads one to regard some systems as pseudo-gels.
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Affiliation(s)
- Ganesh Viswanatha-Pillai
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Andreas Vargas-Jentzsch
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Alain Carvalho
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Guillaume Fleith
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Odile Gavat
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Emilie Moulin
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Nicolas Giuseppone
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
| | - Jean-Michel Guenet
- Institut Charles Sadron CNRS-Université de Strasbourg 23 rue du Loess, BP84047, 67034 Strasbourg Cedex2, France.
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Gavat O, Nguyet Trinh TM, Moulin E, Ellis T, Maaloum M, Buhler E, Fleith G, Nierengarten JF, Giuseppone N. 3D supramolecular self-assembly of [60]fullerene hexaadducts decorated with triarylamine molecules. Chem Commun (Camb) 2018; 54:7657-7660. [PMID: 29932182 DOI: 10.1039/c8cc04079f] [Citation(s) in RCA: 6] [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: 12/29/2022]
Abstract
A clickable fullerene hexa-adduct scaffold has been functionalized with twelve triarylamine subunits. The light-triggered self-assembly of this molecular unit leads to 3D honeycomb-like structures with inner pores of around 10 nm diameter. Multiple grafting of triarylamine subunits onto a hard-core C60 unit increases the dimensionality of the self-assembly process by reticulating the 1D nanowires typically obtained from the supramolecular polymerization of triarylamine monomers.
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Affiliation(s)
- Odile Gavat
- SAMS Research Group, Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84087, France.
| | - Thi Minh Nguyet Trinh
- Laboratoire de Chimie des Matériaux Moléculaires, Université de Strasbourg et CNRS (LIMA - UMR 7042), Ecole Européenne de Chimie, Matériaux et Polymères (ECPM), 25 rue Becquerel, 67087 Strasbourg Cedex 2, France.
| | - Emilie Moulin
- SAMS Research Group, Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84087, France.
| | - Thomas Ellis
- SAMS Research Group, Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84087, France.
| | - Mounir Maaloum
- SAMS Research Group, Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84087, France.
| | - Eric Buhler
- Matière et Systèmes Complexes (MSC) Laboratory, UMR CNRS 7057, Sorbonne Paris Cité, University of Paris Diderot-Paris VII, 75205 Paris Cedex 13, France
| | - Guillaume Fleith
- SAMS Research Group, Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84087, France.
| | - Jean-François Nierengarten
- Laboratoire de Chimie des Matériaux Moléculaires, Université de Strasbourg et CNRS (LIMA - UMR 7042), Ecole Européenne de Chimie, Matériaux et Polymères (ECPM), 25 rue Becquerel, 67087 Strasbourg Cedex 2, France.
| | - Nicolas Giuseppone
- SAMS Research Group, Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, 67034 Strasbourg Cedex 2, BP 84087, France.
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Reisch A, Trofymchuk K, Runser A, Fleith G, Rawiso M, Klymchenko AS. Tailoring Fluorescence Brightness and Switching of Nanoparticles through Dye Organization in the Polymer Matrix. ACS Appl Mater Interfaces 2017; 9:43030-43042. [PMID: 29185702 DOI: 10.1021/acsami.7b12292] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Fluorescent nanoparticles (NPs) help to increase spatial and temporal resolution in bioimaging. Advanced microscopy techniques require very bright NPs that exhibit either stable emission for single-particle tracking or complete on/off switching (blinking) for super-resolution imaging. Here, ultrabright dye-loaded polymer NPs with controlled switching properties are developed. To this aim, the salt of a dye (rhodamine B octadecyl ester) with a hydrophobic counterion (fluorinated tetraphenylborate) is encapsulated at very high concentrations up to 30 wt % in NPs made of poly(lactic-co-glycolic acid) (PLGA), poly(methyl methacrylate) (PMMA), and polycaprolactone (PCL) through nanoprecipitation. The obtained 35 nm NPs are nearly 100 times brighter than quantum dots. The nature of the polymer is found to define the collective behavior of the encapsulated dyes so that NPs containing thousands of dyes exhibit either whole particle blinking, for PLGA, or stable emission, for PMMA and PCL. Fluorescence anisotropy measurements together with small-angle X-ray scattering experiments suggest that in less hydrophobic PLGA, dyes tend to cluster, whereas in more hydrophobic PMMA and PCL, dyes are dispersed within the matrix, thus altering the switching behavior of NPs. Experiments using a perylene diimide derivative show a similar effect of the polymer nature. The resulting fluorescent NPs are suitable for a wide range of imaging applications from tracking to super-resolution imaging. The findings on the organization of the load innside NPs will have impact on the development of materials for applications ranging from photovoltaics to drug delivery.
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Affiliation(s)
- Andreas Reisch
- Laboratoire de Biophotonique et Pharmacologie, UMR CNRS 7213, Université de Strasbourg , 74 route du Rhin, 67401 Illkirch Cedex, France
| | - Kateryna Trofymchuk
- Laboratoire de Biophotonique et Pharmacologie, UMR CNRS 7213, Université de Strasbourg , 74 route du Rhin, 67401 Illkirch Cedex, France
| | - Anne Runser
- Laboratoire de Biophotonique et Pharmacologie, UMR CNRS 7213, Université de Strasbourg , 74 route du Rhin, 67401 Illkirch Cedex, France
| | - Guillaume Fleith
- Institut Charles Sadron (CNRS-UdS) , 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Michel Rawiso
- Institut Charles Sadron (CNRS-UdS) , 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Andrey S Klymchenko
- Laboratoire de Biophotonique et Pharmacologie, UMR CNRS 7213, Université de Strasbourg , 74 route du Rhin, 67401 Illkirch Cedex, France
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Michel M, Arntz Y, Fleith G, Toquant J, Haikel Y, Voegel JC, Schaaf P, Ball V. Layer-by-layer self-assembled polyelectrolyte multilayers with embedded liposomes: immobilized submicronic reactors for mineralization. Langmuir 2006; 22:2358-64. [PMID: 16489829 DOI: 10.1021/la053006g] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The development of chemical reactions in nanospaces is of paramount importance for the development of active nanodevices, particularly in nanofluidics. It has been shown in a previous paper that phospholipid vesicles can be incorporated without spontaneous bilayer rupture into poly-L-glutamic acid/poly(allylamine) (PGA/PAH) multilayered polyelectrolyte films. The aim of the present study was to use such a system as an "embedded submicronic reactor" able to trigger precipitation of calcium phosphates within closed spaces through an enzymatic reaction, the enzyme also being encapsulated in the vesicle interior. To this aim, large unilamellar vesicles (LUVs) were produced containing calcium ions as active ions in the mineralization process, spermine as an activator of crystal growth, and alkaline phosphatase as a catalyst to convert phosphate esters into phosphates. After stabilization by adding a layer of poly-(D-lysine), these vesicles were embedded in a (PGA-PAH)n film. A paranitrophenyl phosphate containing solution was then put in contact with this film. It is shown by means of infrared spectroscopy in the attenuated total reflection mode that, consecutively to this contact, calcium phosphates are growing inside the embedded vesicles. By using scanning near-field fluorescence microscopy, it is demonstrated that the alkaline phosphatase enzymes are most probably located inside the vesicles after their embedding. In addition, atomic force microscopy was used to show, after chemical removal of the organic top layer of the film, that the inorganic platelets produced after the precipitation reaction are localized in volumes of similar size and shape as that of the vesicles into which the phosphate ester hydrolysis and subsequent precipitation reaction did occur.
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Affiliation(s)
- Marc Michel
- Centre National de la Recherche Scientifique, Institut Charles Sadron, Unité Propre 22 du CNRS, 6 rue Boussingault, 67083 Strasbourg Cedex, France
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Hemmerlé J, Roucoules V, Fleith G, Nardin M, Ball V, Lavalle P, Marie P, Voegel JC, Schaaf P. Mechanically responsive films of variable hydrophobicity made of polyelectrolyte multilayers. Langmuir 2005; 21:10328-31. [PMID: 16262287 DOI: 10.1021/la052157g] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Mechanically responsive surfaces that allow to switch reversibly from a hydrophobic to a hydrophilic substrate are reported. The surfaces are constituted of polyelectrolyte multilayers deposited on modified charged silicone sheets. n bilayers of poly(allylamine)-Nafion (PAH-Naf) and m bilayers of poly(allylamine)-poly(acrylic acid) (PAH-PAA) composed the multilayers. A (PAH-Naf)(n) film possesses a water contact angle of around 105 degrees, whereas the contact angle of a (PAH-Naf)(4)-(PAH-PAA)(m) multilayer is around 50 degrees. When such a film with m < 5 and terminated by PAA is stretched out, its water contact angle increases up to around 100 degrees. Successive elongation/retraction cycles allow the water contact angle to alternate reversibly between 100 and 57 degrees indicating the reversible mechanical responsive nature of the film.
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Hübsch E, Fleith G, Fatisson J, Labbé P, Voegel JC, Schaaf P, Ball V. Multivalent ion/polyelectrolyte exchange processes in exponentially growing multilayers. Langmuir 2005; 21:3664-3669. [PMID: 15807618 DOI: 10.1021/la047258d] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We show, in this paper that multivalent ferrocyanide anions can penetrate into exponentially growing (PGA/PAH)n multilayer films whatever the nature of the last deposited layer. These ions are not able to diffuse out of the film when it is brought in contact with a pure buffer solution. However, the contact of this film with a poly(allylamine) (PAH) or a poly(L-glutamic acid) (PGA) solution leads to the release of ferrocyanide ions from the multilayer. It is shown that the release of ferrocyanide anions, when the film is in contact with a PGA solution, is due to the diffusion of the PGA chains into the film so that an exchange between ferrocyanide ions and PGA chains takes place inside the film. On the other hand, PAH chains do not diffuse into PGA/PAH multilayers. When the film is then brought in contact with a PAH solution, the PAH chains from the solution are expected to strongly interact with the ferrocyanide ions and thus induce a diffusion mechanism of the multivalent anions out of the film, the film/solution interface playing the role of a sink for these ions. This work thus shows that interactions between multivalent ions and exponentially growing films are much more complex than expected at first sight and that polyelectrolyte multilayers must be seen as dynamic entities in which diffusion and exchange processes can take place.
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Affiliation(s)
- E Hübsch
- Institut National de la Santé et de la Recherche Médicale, Unité 595, Faculté de Chirurgie Dentaire, 11 rue Humann, 67085 Strasbourg Cedex, France
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