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Szabová J, Mravec F, Mokhtari M, Le Borgne R, Kalina M, Berret JF. N,N,N-Trimethyl chitosan as a permeation enhancer for inhalation drug delivery: Interaction with a model pulmonary surfactant. Int J Biol Macromol 2023; 239:124235. [PMID: 37001781 DOI: 10.1016/j.ijbiomac.2023.124235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/13/2023] [Accepted: 03/26/2023] [Indexed: 04/08/2023]
Abstract
N,N,N-Trimethyl chitosan (TMC), a biocompatible and biodegradable derivative of chitosan, is currently used as a permeation enhancer to increase the translocation of drugs to the bloodstream in the lungs. This article discusses the effect of TMC on a mimetic pulmonary surfactant, Curosurf®, a low-viscosity lipid formulation administered to preterm infants with acute respiratory distress syndrome. Curosurf® exhibits a strong interaction with TMC, resulting in the formation of aggregates at electrostatic charge stoichiometry. At nanoscale, Curosurf® undergoes a profound reorganization of its lipid vesicles in terms of size and lamellarity. The initial micron-sized vesicles (average size 4.8 μm) give way to a froth-like network of unilamellar vesicles about 300 nm in size. Under such conditions, neutralization of the cationic charges by pulmonary surfactant may inhibit TMC permeation enhancer capacity, especially as electrostatic charge complexation is found at low TMC content. The permeation properties of pulmonary surfactant-neutralized TMC should then be evaluated for its applicability as a permeation enhancer for inhalation in the alveolar region.
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Affiliation(s)
- Jana Szabová
- Université Paris Cité, CNRS, Matière et Systèmes Complexes, 75013 Paris, France; Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Brno, Czech Republic.
| | - Filip Mravec
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Brno, Czech Republic
| | - Mostafa Mokhtari
- Neonatal Intensive Care Unit, Hôpitaux Universitaires Paris - Saclay, Hôpital Universitaire de Bicêtre, Espace Ethique/Île-deFrance, Hôpital Universitaire Saint-Louis - APHP, Paris, France
| | - Rémi Le Borgne
- Université de Paris, CNRS, Institute Jacques Monod, 75013 Paris, France
| | - Michal Kalina
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Brno, Czech Republic
| | - Jean-François Berret
- Université Paris Cité, CNRS, Matière et Systèmes Complexes, 75013 Paris, France.
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2
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Majcher MJ, Himbert S, Vito F, Campea MA, Dave R, Vetergaard Jensen G, Rheinstadter MC, Smeets NMB, Hoare T. Investigating the Kinetics and Structure of Network Formation in Ultraviolet-Photopolymerizable Starch Nanogel Network Hydrogels via Very Small-Angle Neutron Scattering and Small-Amplitude Oscillatory Shear Rheology. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael J. Majcher
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Sebastian Himbert
- Department of Physics & Astronomy, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Francesco Vito
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Matthew A. Campea
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Ridhdhi Dave
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Grethe Vetergaard Jensen
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6100, United States
| | - Maikel C. Rheinstadter
- Department of Physics & Astronomy, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Niels M. B. Smeets
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Todd Hoare
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
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3
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Berret JF, Mousseau F, Le Borgne R, Oikonomou EK. Sol-gel transition induced by alumina nanoparticles in a model pulmonary surfactant. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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4
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Ferreira LF, Picco AS, Galdino FE, Albuquerque LJC, Berret JF, Cardoso MB. Nanoparticle-Protein Interaction: Demystifying the Correlation between Protein Corona and Aggregation Phenomena. ACS APPLIED MATERIALS & INTERFACES 2022; 14:28559-28569. [PMID: 35696304 DOI: 10.1021/acsami.2c05362] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Protein corona formation and nanoparticles' aggregation have been heavily discussed over the past years since the lack of fine-mapping of these two combined effects has hindered the targeted delivery evolution and the personalized nanomedicine development. We present a multitechnique approach that combines dynamic light and small-angle X-ray scattering techniques with cryotransmission electron microscopy in a given fashion that efficiently distinguishes protein corona from aggregates formation. This methodology was tested using ∼25 nm model silica nanoparticles incubated with either model proteins or biologically relevant proteomes (such as fetal bovine serum and human plasma) in low and high ionic strength buffers to precisely tune particle-to-protein interactions. In this work, we were able to differentiate protein corona, small aggregates formation, and massive aggregation, as well as obtain fractal information on the aggregates reliably and straightforwardly. The strategy presented here can be expanded to other particle-to-protein mixtures and might be employed as a quality control platform for samples that undergo biological tests.
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Affiliation(s)
- Larissa Fernanda Ferreira
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970 Campinas, Brazil
- Programa de Pós-Graduação em Biotecnociências, Universidade Federal do ABC, 09210-580 Santo André, Brazil
| | - Agustín Silvio Picco
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Fac. de Cs. Exactas, Universidad Nacional de La Plata─CONICET, Boulevard 113 y 64, 1900 La Plata, Argentina
| | - Flávia Elisa Galdino
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970 Campinas, Brazil
- Institute of Chemistry (IQ), University of Campinas (UNICAMP), P.O. Box 6154, 13083-970 Campinas, Brazil
| | - Lindomar Jose Calumby Albuquerque
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970 Campinas, Brazil
| | | | - Mateus Borba Cardoso
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970 Campinas, Brazil
- Programa de Pós-Graduação em Biotecnociências, Universidade Federal do ABC, 09210-580 Santo André, Brazil
- Institute of Chemistry (IQ), University of Campinas (UNICAMP), P.O. Box 6154, 13083-970 Campinas, Brazil
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5
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Oikonomou EK, Berret JF. Advanced Eco-Friendly Formulations of Guar Biopolymer-Based Textile Conditioners. MATERIALS (BASEL, SWITZERLAND) 2021; 14:5749. [PMID: 34640145 PMCID: PMC8510192 DOI: 10.3390/ma14195749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 11/16/2022]
Abstract
Fabric conditioners are household products used to impart softness and fragrance to textiles. They are colloidal dispersions of cationic double chain surfactants that self-assemble in vesicles. These surfactants are primarily derived from palm oil chemical modification. Reducing the content of these surfactants allows to obtain products with lower environmental impact. Such a reduction, without adverse effects on the characteristics of the softener and its performance, can be achieved by adding hydrophilic biopolymers. Here, we review the role of guar biopolymers modified with cationic or hydroxyl-propyl groups, on the physicochemical properties of the formulation. Electronic and optical microscopy, dynamic light scattering, X-ray scattering and rheology of vesicles dispersion in the absence and presence of guar biopolymers are analyzed. Finally, the deposition of the new formulation on cotton fabrics is examined through scanning electron microscopy and a new protocol based on fluorescent microscopy. With this methodology, it is possible to quantify the deposition of surfactants on cotton fibers. The results show that the approach followed here can facilitate the design of sustainable home-care products.
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Affiliation(s)
- Evdokia K. Oikonomou
- Université de Paris, Centre National de la Recherche Scientifique (CNRS), Matière et Systèmes Complexes, 75013 Paris, France;
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6
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Radiom M, Hénault R, Mani S, Iankovski AG, Norel X, Berret JF. Magnetic wire active microrheology of human respiratory mucus. SOFT MATTER 2021; 17:7585-7595. [PMID: 34341819 DOI: 10.1039/d1sm00512j] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Mucus is a viscoelastic gel secreted by the pulmonary epithelium in the tracheobronchial region of the lungs. The coordinated beating of cilia moves mucus upwards towards the pharynx, removing inhaled pathogens and particles from the airways. The efficacy of this clearance mechanism depends primarily on the rheological properties of mucus. Here we use magnetic wire based microrheology to study the viscoelastic properties of human mucus collected from human bronchus tubes. The response of wires between 5 and 80 μm in length to a rotating magnetic field is monitored by optical time-lapse microscopy and analyzed using constitutive equations of rheology, including those of Maxwell and Kelvin-Voigt. The static shear viscosity and elastic modulus can be inferred from low frequency (3 × 10-3-30 rad s-1) measurements, leading to the evaluation of the mucin network relaxation time. This relaxation time is found to be widely distributed, from one to several hundred seconds. Mucus is identified as a viscoelastic liquid with an elastic modulus of 2.5 ± 0.5 Pa and a static viscosity of 100 ± 40 Pa s. Our work shows that beyond the established spatial variations in rheological properties due to microcavities, mucus exhibits secondary inhomogeneities associated with the relaxation time of the mucin network that may be important for its flow properties.
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Affiliation(s)
- Milad Radiom
- Université de Paris, CNRS, Matière et Systèmes Complexes, 75013 Paris, France.
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7
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Ziółkowska D, Lamkiewicz J, Shyichuk A. Determination of Sodium Dodecyl Sulfate
via
Turbidimetric Titration with Poly(Diallyldimethylammonium Chloride). J SURFACTANTS DETERG 2020. [DOI: 10.1002/jsde.12428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Dorota Ziółkowska
- Faculty of Chemical Technology and EngineeringUTP University of Science and Technology Seminaryjna 3, 85‐326 Bydgoszcz Poland
| | - Jan Lamkiewicz
- Faculty of Chemical Technology and EngineeringUTP University of Science and Technology Seminaryjna 3, 85‐326 Bydgoszcz Poland
| | - Alexander Shyichuk
- Faculty of Chemical Technology and EngineeringUTP University of Science and Technology Seminaryjna 3, 85‐326 Bydgoszcz Poland
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8
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Dos Santos de Macedo B, de Almeida T, da Costa Cruz R, Netto ADP, da Silva L, Berret JF, Vitorazi L. Effect of pH on the Complex Coacervation and on the Formation of Layers of Sodium Alginate and PDADMAC. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:2510-2523. [PMID: 32050754 DOI: 10.1021/acs.langmuir.9b03216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, we investigated the thermodynamic features of a system based on oppositely charged polyelectrolytes, sodium alginate, and poly(diallyldimethylammonium chloride) (PDADMAC) at different pH values. Additionally, a comparison of the effects of the thermodynamic parameters on the growth of the layers based on the same polymers is presented. For this investigation, different techniques were combined to compare results from the association in solution and coassembled layers at the silicon surface. Dynamic light scattering (DLS) and isothermal titration calorimetry (ITC) were used for studies in solution, and the layer-by-layer technique was employed for the preparation of the polymer layers. Ellipsometry and atomic force microscopy (AFM) were used to characterize the layer thickness growth as a function of the solution pH, and interferometric confocal microscopy was employed to analyze the topography and roughness of the films. The titration of both polyelectrolytes in two different sequences of additions confirmed the mechanism; it involved a two-step process that was monitored by varying the enthalpy, as determined by ITC experiments, and the structural evolution of the aggregates into coacervates, according to DLS. The primary process is aggregation to form polyelectrolyte complexes having a smaller hydrodynamic diameter, which abruptly transit toward a secondary process because of the formation of coacervate particles that have a larger hydrodynamic diameter. Independent of pH and the sequence of addition, for the first process, both directions are entropically driven. However, the binding enthalpy (ΔHb) decreased with a decrease in the pH of the solution. The layers grown for the PDADMAC/sodium alginate system demonstrated pH sensitivity with either linear or exponential behavior, depending on the pH values of the polyelectrolyte solutions. The more endothermic process at pH 10 afforded layers with a smaller thickness and with linear growth according to the increase in the number of layers from 5 to 20. Decreases in the pH of the solution resulted in the layers growing exponentially; additionally, a decrease in the ΔHb of the association in the solution was observed. The layer thicknesses measured using ellipsometry and AFM data were in good agreement. Additionally, the influence of pH on the roughness and topography of the films was observed. Films from basic dipping solutions resulted in surfaces that were more homogeneous with less roughness; in contrast, films with more layers and those formed in a low-pH dipping solution were rougher and less homogeneous.
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Affiliation(s)
- Bruno Dos Santos de Macedo
- Laboratório de Quı́mica Analı́tica Fundamental e Aplicada, Instituto de Quı́mica - Universidade Federal Fluminense, R. Outeiro de São João Batista, s/n, Niterói, RJ CEP 24020-141, Brazil
| | - Tamiris de Almeida
- Programa de Pós-Graduação em Engenharia Metalúrgica, EEIMVR, Universidade Federal Fluminense, Avenida dos Trabalhadores, 420, Volta Redonda RJ CEP 27225-125, Brazil
| | | | - Annibal Duarte Pereira Netto
- Laboratório de Quı́mica Analı́tica Fundamental e Aplicada, Instituto de Quı́mica - Universidade Federal Fluminense, R. Outeiro de São João Batista, s/n, Niterói, RJ CEP 24020-141, Brazil
| | - Ladário da Silva
- Programa de Pós-Graduação em Engenharia Metalúrgica, EEIMVR, Universidade Federal Fluminense, Avenida dos Trabalhadores, 420, Volta Redonda RJ CEP 27225-125, Brazil
- Laboratório Multiusuários de Caracterização de Materiais, Instituto de Ciências Exatas - Universidade Federal Fluminense, R. Des. Ellis Hermydio Figueira, 783, Volta Redonda RJ CEP 27213-145, Brazil
| | - Jean-François Berret
- Laboratoire Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - Letícia Vitorazi
- Programa de Pós-Graduação em Engenharia Metalúrgica, EEIMVR, Universidade Federal Fluminense, Avenida dos Trabalhadores, 420, Volta Redonda RJ CEP 27225-125, Brazil
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9
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Thai LPA, Mousseau F, Oikonomou E, Radiom M, Berret JF. Effect of Nanoparticles on the Bulk Shear Viscosity of a Lung Surfactant Fluid. ACS NANO 2020; 14:466-475. [PMID: 31854968 DOI: 10.1021/acsnano.9b06293] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Inhaled nanoparticles (<100 nm) reaching the deep lung region first interact with the pulmonary surfactant, a thin lipid film lining the alveolar epithelium. To date, most biophysical studies have focused on particle-induced modifications of the film interfacial properties. In comparison, there is less work on the surfactant bulk properties and on their changes upon particle exposure. Here we study the viscoelastic properties of a biomimetic pulmonary surfactant in the presence of various engineered nanoparticles. The microrheology technique used is based on the remote actuation of micron-sized wires via the application of a rotating magnetic field and on time-lapse optical microscopy. It is found that particles strongly interacting with lipid vesicles, such as cationic silica (SiO2, 42 nm) and alumina (Al2O3, 40 nm) induce profound modifications of the surfactant flow properties, even at low concentrations. In particular, we find that silica causes fluidification, while alumina induces a liquid-to-soft solid transition. Both phenomena are described quantitatively and accounted for in the context of colloidal physics models. It is finally suggested that the structure and viscosity changes could impair the fluid reorganization and recirculation occurring during breathing.
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Affiliation(s)
- Le-Phuong-Anh Thai
- Matière et Systèmes Complexes , UMR 7057 CNRS Université Denis Diderot Paris-VII , Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet , 75205 Paris , France
| | - Fanny Mousseau
- Matière et Systèmes Complexes , UMR 7057 CNRS Université Denis Diderot Paris-VII , Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet , 75205 Paris , France
| | - Evdokia Oikonomou
- Matière et Systèmes Complexes , UMR 7057 CNRS Université Denis Diderot Paris-VII , Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet , 75205 Paris , France
| | - Milad Radiom
- Matière et Systèmes Complexes , UMR 7057 CNRS Université Denis Diderot Paris-VII , Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet , 75205 Paris , France
| | - Jean-François Berret
- Matière et Systèmes Complexes , UMR 7057 CNRS Université Denis Diderot Paris-VII , Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet , 75205 Paris , France
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10
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Oukacine F, Choisnard L, Gèze A, Peyrin E. Capillary electrophoretic apparatus for the endpoint detection in microtitration methods. J Chromatogr A 2019; 1597:220-224. [DOI: 10.1016/j.chroma.2019.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 02/19/2019] [Accepted: 03/08/2019] [Indexed: 10/27/2022]
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11
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Mousseau F, Berret JF, Oikonomou EK. Design and Applications of a Fluorescent Labeling Technique for Lipid and Surfactant Preformed Vesicles. ACS OMEGA 2019; 4:10485-10493. [PMID: 31460145 PMCID: PMC6648494 DOI: 10.1021/acsomega.9b01094] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 06/05/2019] [Indexed: 05/27/2023]
Abstract
Amphiphilic molecules such as surfactants, lipids, and block copolymers can be assembled into bilayers and form vesicles. Fluorescent membrane labeling methods require the use of dye molecules that can be inserted into the bilayers at different stages of synthesis. To our knowledge, there is no generalized method for labeling preformed vesicles. Herein, we develop a versatile protocol that is suitable to both surfactant and lipid preformed vesicles and requires no separation or purification steps. On the basis of the lipophilic carbocyanine green dye PKH67, the methodology is assessed on zwitterionic phosphatidylcholine vesicles. To demonstrate its versatility, it is applied to dispersions of anionic or cationic vesicles, such as a drug administrated to premature infants with respiratory distress syndrome, or a vesicle formulation used as a fabric softener for home care applications. By means of fluorescence microscopy, we then visualize the interaction mechanisms of nanoparticles crossing live cell membranes and of surfactants adsorbed on a cotton fabric. These results highlight the advantages of a membrane labeling technique that is simple and applicable to a large number of soft matter systems.
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Affiliation(s)
- Fanny Mousseau
- Laboratoire Matière et Systèmes
Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII,
Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - Jean-François Berret
- Laboratoire Matière et Systèmes
Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII,
Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - Evdokia K. Oikonomou
- Laboratoire Matière et Systèmes
Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII,
Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
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12
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Matos Fonseca JD, Fátima Medeiros SD, Alves GM, Santos DMD, Campana-Filho SP, Santos AMD. Chitosan microparticles embedded with multi-responsive poly(N-vinylcaprolactam-co-itaconic acid-co-ethylene-glycol dimethacrylate)-based hydrogel nanoparticles as a new carrier for delivery of hydrophobic drugs. Colloids Surf B Biointerfaces 2019; 175:73-83. [DOI: 10.1016/j.colsurfb.2018.11.042] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 11/03/2018] [Accepted: 11/19/2018] [Indexed: 10/27/2022]
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13
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Nanoparticle-Lipid Interaction: Job Scattering Plots to Differentiate Vesicle Aggregation from Supported Lipid Bilayer Formation. COLLOIDS AND INTERFACES 2018. [DOI: 10.3390/colloids2040050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The impact of nanomaterials on lung fluids, or on the plasma membrane of living cells, has prompted researchers to examine the interactions between nanoparticles and lipid vesicles. Recent studies have shown that nanoparticle-lipid interaction leads to a broad range of structures including supported lipid bilayers (SLB), particles adsorbed at the surface or internalized inside vesicles, and mixed aggregates. Currently, there is a need to have simple protocols that can readily evaluate the structures made from particles and vesicles. Here we apply the method of continuous variation for measuring Job scattering plots and provide analytical expressions for the scattering intensity in various scenarios. The result that emerges from the comparison between experiments and modeling is that electrostatics play a key role in the association, but it is not sufficient to induce the formation of supported lipid bilayers.
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14
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Mousseau F, Berret JF. The role of surface charge in the interaction of nanoparticles with model pulmonary surfactants. SOFT MATTER 2018; 14:5764-5774. [PMID: 29989135 DOI: 10.1039/c8sm00925b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Inhaled nanoparticles traveling through the airways are able to reach the respiratory zone of the lungs. In such an event, the incoming particles first come into contact with the liquid lining the alveolar epithelium, the pulmonary surfactant. The pulmonary surfactant is composed of lipids and proteins that are assembled into large vesicular structures. The question of the nature of the biophysicochemical interaction with the pulmonary surfactant is central to understand how the nanoparticles can cross the air-blood barrier. Here we explore the phase behavior of sub-100 nm particles and surfactant substitutes under controlled conditions. Three types of surfactant mimetics, including the exogenous substitute Curosurf®, a drug administered to infants with respiratory distress syndrome, are tested together with aluminum oxide (Al2O3), silicon dioxide (SiO2) and polymer (latex) nanoparticles. The main result here is the observation of spontaneous nanoparticle-vesicle aggregation induced by coulombic attraction. The role of the surface charges is clearly established. We also evaluate the supported lipid bilayer formation recently predicted and find that in the cases studied these structures do not occur. Pertaining to the aggregate internal structure, fluorescence microscopy shows that the vesicles and particles are intermixed at the nano- to microscale. With particles acting as stickers between vesicles, it is anticipated that the presence of inhaled nanomaterials in the alveolar spaces could significantly modify the interfacial and bulk properties of the pulmonary surfactant and interfere with lung physiology.
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Affiliation(s)
- F Mousseau
- Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France.
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15
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Design of eco-friendly fabric softeners: Structure, rheology and interaction with cellulose nanocrystals. J Colloid Interface Sci 2018; 525:206-215. [PMID: 29705592 DOI: 10.1016/j.jcis.2018.04.081] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/18/2018] [Accepted: 04/19/2018] [Indexed: 11/20/2022]
Abstract
HYPOTHESIS Concentrated fabric softeners are water-based formulations containing around 10-15 wt% of double tailed esterquat surfactants primarily synthesized from palm oil. In recent patents, it was shown that a significant part of the surfactant contained in today's formulations can be reduced by circa 50% and replaced by natural guar polymers without detrimental effects on the deposition and softening performances. We presently study the structure and rheology of these softener formulations and identify the mechanisms at the origin of these effects. EXPERIMENTS The polymer additives used are guar gum polysaccharides, one cationic and one modified through addition of hydroxypropyl groups. Formulations with and without guar polymers are investigated using optical and cryo-transmission electron microscopy, small-angle light and X-ray scattering and finally rheology. Similar techniques are applied to study the phase behavior of softener and cellulose nanocrystals considered here as a model for cotton. FINDINGS The esterquat surfactants are shown to assemble into micron-sized vesicles in the dilute and concentrated regimes. In the former, guar addition in small amounts does not impair the vesicular structure and stability. In the concentrated regime, cationic guars induce a local crowding associated to depletion interactions and leads to the formation of a local lamellar order. In rheology, adjusting the polymer concentration at 1/10th that of the surfactant is sufficient to offset the decrease of the elastic property associated with the surfactant reduction. In conclusion, we have shown that through an appropriate choice of natural additives it is possible to lower the concentration of surfactants in fabric conditioners by about half, a result that could represent a significant breakthrough in current home care formulations.
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16
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Mousseau F, Puisney C, Mornet S, Borgne RL, Vacher A, Airiau M, Baeza-Squiban A, Berret JF. Supported pulmonary surfactant bilayers on silica nanoparticles: formulation, stability and impact on lung epithelial cells. NANOSCALE 2017; 9:14967-14978. [PMID: 28953277 DOI: 10.1039/c7nr04574c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Studies have shown that following exposure to particulate matter, ultrafine fractions (<100 nm) may deposit along the respiratory tract down to the alveolar region. To assess the effects of nanoparticles on the lungs, it is essential to address the question of their biophysicochemical interaction with the different pulmonary environments, including the lung lining fluids and the epithelia. Here we examine one of these interactive scenarios and study the role of supported lipid bilayers (SLB) in the effect of 40 nm fluorescent silica particles on living cells. We first study the particle phase behavior in the presence of Curosurf®, a pulmonary surfactant substitute used in replacement therapies. It is found that Curosurf® vesicles interact strongly with the nanoparticles, but do not spontaneously form SLBs. To achieve this goal, we use sonication to reshape the vesicular membranes and induce lipid fusion around the particles. Centrifugal sedimentation and electron microscopy are carried out to determine the optimum coating conditions and layer thickness. We then explore the impact of surfactant SLBs on the cytotoxic potential and interactions towards a malignant epithelial cell line. All in vitro assays indicate that SLBs mitigate the particle toxicity and internalization rates. In the cytoplasm, the particle localization is also strongly coating dependent. It is concluded that SLBs profoundly affect cellular interactions and functions in vitro and could represent an alternative strategy for particle coating. The current data also shed some light on the potential mechanisms pertaining to the particle or pathogen transport through the air-blood barrier.
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Affiliation(s)
- F Mousseau
- Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France.
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17
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Oikonomou EK, Mousseau F, Christov N, Cristobal G, Vacher A, Airiau M, Bourgaux C, Heux L, Berret JF. Fabric Softener–Cellulose Nanocrystal Interaction: A Model for Assessing Surfactant Deposition on Cotton. J Phys Chem B 2017; 121:2299-2307. [DOI: 10.1021/acs.jpcb.7b00191] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- E. K. Oikonomou
- Laboratoire
Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue
Alice Domon et Léonie Duquet, 75205 Paris, France
| | - F. Mousseau
- Laboratoire
Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue
Alice Domon et Léonie Duquet, 75205 Paris, France
| | - N. Christov
- Solvay Research & Innovation Center Singapore, 1 Biopolis Drive, Amnios, Singapore 138622
| | - G. Cristobal
- Solvay Research & Innovation Center Singapore, 1 Biopolis Drive, Amnios, Singapore 138622
| | - A. Vacher
- Solvay Research & Innovation Centre Paris, 52 rue de la Haie Coq, 93306 Aubervilliers Cedex, France
| | - M. Airiau
- Solvay Research & Innovation Centre Paris, 52 rue de la Haie Coq, 93306 Aubervilliers Cedex, France
| | - C. Bourgaux
- Institut Galien Paris-Sud - UMR CNRS 8612, Faculté de Pharmacie, Université Paris-Sud XI, 92296 Châtenay-Malabry Cedex, France
| | - L. Heux
- Centre de Recherches sur les Macromolécules Végétales, BP 53, 38041 Grenoble Cedex 9, France
| | - J.-F. Berret
- Laboratoire
Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue
Alice Domon et Léonie Duquet, 75205 Paris, France
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18
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Nakai K, Ishihara K, Kappl M, Fujii S, Nakamura Y, Yusa SI. Polyion Complex Vesicles with Solvated Phosphobetaine Shells Formed from Oppositely Charged Diblock Copolymers. Polymers (Basel) 2017; 9:E49. [PMID: 30970729 PMCID: PMC6432163 DOI: 10.3390/polym9020049] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 01/24/2017] [Accepted: 01/30/2017] [Indexed: 11/16/2022] Open
Abstract
Diblock copolymers consisting of a hydrophilic poly(2-(methacryloyloxy)ethyl phosphorylcholine) (PMPC) block and either a cationic or anionic block were prepared from (3-(methacrylamido)propyl)trimethylammonium chloride (MAPTAC) or sodium 2-(acrylamido)-2-methylpropanesulfonate (AMPS). Polymers were synthesized via reversible addition-fragmentation chain transfer (RAFT) radical polymerization using a PMPC macro-chain transfer agent. The degree of polymerization for PMPC, cationic PMAPTAC, and anionic PAMPS blocks was 20, 190, and 196, respectively. Combining two solutions of oppositely charged diblock copolymers, PMPC-b-PMAPTAC and PMPC-b-PAMPS, led to the spontaneous formation of polyion complex vesicles (PICsomes). The PICsomes were characterized using ¹H NMR, static abd dynamic light scattering, transmittance electron microscopy (TEM), and atomic force microscopy. Maximum hydrodynamic radius (Rh) for the PICsome was observed at a neutral charge balance of the cationic and anionic diblock copolymers. The Rh value and aggregation number (Nagg) of PICsomes in 0.1 M NaCl was 78.0 nm and 7770, respectively. A spherical hollow vesicle structure was observed in TEM images. The hydrodynamic size of the PICsomes increased with concentration of the diblock copolymer solutions before mixing. Thus, the size of the PICsomes can be controlled by selecting an appropriate preparation method.
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Affiliation(s)
- Keita Nakai
- Department of Applied Chemistry, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan.
| | - Kazuhiko Ishihara
- Department of Materials Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Michael Kappl
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
| | - Syuji Fujii
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan.
| | - Yoshinobu Nakamura
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan.
| | - Shin-Ichi Yusa
- Department of Applied Chemistry, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan.
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