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Kocgozlu L, Mutschler A, Tallet L, Calligaro C, Knopf-Marques H, Lebaudy E, Mathieu E, Rabineau M, Gribova V, Senger B, Vrana NE, Lavalle P. Cationic homopolypeptides: A versatile tool to design multifunctional antimicrobial nanocoatings. Mater Today Bio 2024; 28:101168. [PMID: 39221202 PMCID: PMC11364137 DOI: 10.1016/j.mtbio.2024.101168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 07/24/2024] [Accepted: 07/27/2024] [Indexed: 09/04/2024] Open
Abstract
Postoperative infections are the most common complications faced by surgeons after implant surgery. To address this issue, an emerging and promising approach is to develop antimicrobial coatings using antibiotic substitutes. We investigated the use of polycationic homopolypeptides in a layer-by-layer coating combined with hyaluronic acid (HA) to produce an effective antimicrobial shield. The three peptide-based polycations used to make the coatings, poly(l-arginine) (PAR), poly(l-lysine), and poly(l-ornithine), provided an efficient antibacterial barrier by a contact-killing mechanism against Gram-positive, Gram-negative, and antibiotic-resistant bacteria. Moreover, this activity was higher for homopolypeptides containing 30 amino-acid residues per polycation chain, emphasizing the impact of the polycation chain length and its mobility in the coatings to deploy its contact-killing antimicrobial properties. However, the PAR-containing coating emerged as the best candidate among the three selected polycations, as it promoted cell adhesion and epithelial monolayer formation. It also stimulated nitric oxide production in endothelial cells, thereby facilitating angiogenesis and subsequent tissue regeneration. More interestingly, bacteria did not develop a resistance to PAR and (PAR/HA) also inhibited the proliferation of eukaryotic pathogens, such as yeasts. Furthermore, in vivo investigations on a (PAR/HA)-coated hernia mesh implanted on a rabbit model confirmed that the coating had antibacterial properties without causing chronic inflammation. These impressive synergistic activities highlight the strong potential of PAR/HA coatings as a key tool in combating bacteria, including those resistant to conventional antibiotics and associated to medical devices.
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Affiliation(s)
- Leyla Kocgozlu
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
| | - Angela Mutschler
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
| | - Lorène Tallet
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
| | | | - Helena Knopf-Marques
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
| | - Eloïse Lebaudy
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
| | - Eric Mathieu
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
| | - Morgane Rabineau
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
| | - Varvara Gribova
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
| | - Bernard Senger
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
| | | | - Philippe Lavalle
- Institut National de la Santé et de la Recherche Médicale, UMR_S 1121, Strasbourg, France
- Université de Strasbourg, Faculté de Chirurgie Dentaire, Strasbourg, France
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2
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Koss KM, Sereda TJ, Kumirov VK, Wertheim JA. A class of peptides designed to replicate and enhance the Receptor for Hyaluronic Acid Mediated Motility binding domain. Acta Biomater 2023:S1742-7061(23)00251-9. [PMID: 37178990 DOI: 10.1016/j.actbio.2023.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023]
Abstract
The extra-cellular matrix (ECM) is a complex and rich microenvironment that is exposed and over-expressed across several injury or disease pathologies. Biomaterial therapeutics are often enriched with peptide binders to target the ECM with greater specificity. Hyaluronic acid (HA) is a major component of the ECM, yet to date, few HA adherent peptides have been discovered. A class of HA binding peptides was designed using B(X7)B hyaluronic acid binding domains inspired from the helical face of the Receptor for Hyaluronic Acid Mediated Motility (RHAMM). These peptides were bioengineered using a custom alpha helical net method, allowing for the enrichment of multiple B(X7)B domains and the optimisation of contiguous and non-contiguous domain orientations. Unexpectedly, the molecules also exhibited the behaviour of nanofiber forming self-assembling peptides and were investigated for this characteristic. Ten 23-27 amino acid residue peptides were assessed. Simple molecular modelling was used to depict helical secondary structures. Binding assays were performed with varying concentrations (1-10 mg/mL) and extra-cellular matrices (HA, collagens I-IV, elastin, and Geltrex). Concentration mediated secondary structures were assessed using circular dichroism (CD), and higher order nanostructures were visualized using transmission electron microscopy (TEM). All peptides formed the initial apparent 310/alpha-helices, yet peptides 17x-3, 4, BHP3 and BHP4 were HA specific and potent (i.e., a significant effect) binders at increasing concentrations. These peptides shifted from apparent 310/alpha-helical structures at low concentration to beta-sheets at increasing concentration and also formed nanofibers which are noted as self-assembling structures. Several of the HA binding peptides outperformed our positive control (mPEP35) at 3-4 times higher concentrations, and were enhanced by self-assembly as each of these groups had observable nanofibers. STATEMENT OF SIGNIFICANCE: Specific biomolecules or peptides have played a crucial role in developing materials or systems to deliver key drugs and therapeutics to a broad spectrum of diseases and disorders. In these diseased tissues, cells build protein/sugar networks, which are uniquely exposed and great targets to deliver drugs to. Hyaluronic acid (HA) is involved in every stage of injury and is abundant in cancer. To date, only two HA specific peptides have been discovered. In our work, we have designed a way to model and trace binding regions as they appear on the face of a helical peptide. Using this method we have created a family of peptides enriched with HA binding domains that stick with 3-4 higher affinity than those previously discovered.
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Affiliation(s)
- Kyle M Koss
- Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL; Department of Surgery, University of Arizona College of Medicine, Tucson, AZ
| | | | - Vlad K Kumirov
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ
| | - Jason A Wertheim
- Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL; Department of Surgery, University of Arizona College of Medicine, Tucson, AZ
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3
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Vikulina A, Wulf A, Guday G, Fakhrullin R, Volodkin D. A lipid membrane supported on an artificial extracellular matrix made of polyelectrolyte multilayers: towards nanoarchitectonics at the cellular interface. NANOSCALE 2023; 15:2197-2205. [PMID: 36633359 DOI: 10.1039/d2nr05186a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
To implement a specific function, cells recognize multiple physical and chemical cues and exhibit molecular responses at their interfaces - the boundary regions between the cell lipid-based membrane and the surrounding extracellular matrix (ECM). Mimicking the cellular external microenvironment presents a big challenge in nanoarchitectonics due to the complexity of the ECM and lipid membrane fragility. This study reports an approach for the assembly of a lipid bilayer, mimicking the cellular membrane, placed on top of a polyelectrolyte multilayer cushion made of hyaluronic acid and poly-L-lysine - a nanostructured biomaterial, which represents a 3D artificial ECM. Model proteins, lysozyme and α-lactalbumin, (which have similar molecular masses but carry opposite net charges) have been employed as soluble signalling molecules to probe their interaction with these hybrids. The formation of a lipid bilayer and the intermolecular interactions in the hybrid structure are monitored using a quartz crystal microbalance and confocal fluorescence microscopy. Electrostatic interactions between poly-L-lysine and the externally added proteins govern the transport of proteins into the hybrid. Designed ECM-cell mimicking hybrids open up new avenues for modelling a broad range of cell membranes and ECM and their associated phenomena, which can be used as a tool for synthetic biology and drug screening.
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Affiliation(s)
- Anna Vikulina
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses (Fraunhofer IZI-BB), Am Mühlenberg 13, 14476 Potsdam, Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Bavarian Polymer Institute, Dr.-Mack-Straße 77, 90762 Fürth, Germany
| | - Alena Wulf
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses (Fraunhofer IZI-BB), Am Mühlenberg 13, 14476 Potsdam, Germany
| | - Guy Guday
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses (Fraunhofer IZI-BB), Am Mühlenberg 13, 14476 Potsdam, Germany
| | - Rawil Fakhrullin
- Kazan Federal University, Institute of Fundamental Medicine and Biology, Kreml uramı 18, Kazan, Republic of Tatarstan, 420008, Russian Federation.
| | - Dmitry Volodkin
- Nottingham Trent University, School of Science and Technology, Clifton Lane, Nottingham NG11 8NS, UK.
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Kienle DF, Schwartz DK. Single molecule characterization of anomalous transport in a thin, anisotropic film. Anal Chim Acta 2021; 1154:338331. [PMID: 33736806 DOI: 10.1016/j.aca.2021.338331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/01/2021] [Accepted: 02/14/2021] [Indexed: 01/07/2023]
Abstract
The diffusion of small, charged molecules incorporated in an anisotropic polyelectrolyte multilayer (PEM) was tracked in three dimensions by combining single-molecule fluorescence localization (to characterize lateral diffusion) with Förster resonance energy transfer (FRET) between diffusing molecules and the supporting surface (to measure diffusion in the surface-normal direction). Analysis of the surface-normal diffusion required model-based statistical analysis to account for the inherently noisy FRET signal. Combining these distinct single-molecule methods, which are inherently sensitive to different length-scales, permitted simultaneous characterization of severely anisotropic diffusion, which was more than three orders of magnitude slower in the surface-normal direction. We hypothesize that the anomalously slow surface-normal diffusion was related to the periodic distribution of charge in the PEM, which created electrostatic barriers. The motion was strongly subdiffusive, with anomalous temporal scaling exponents in lateral and normal directions, suggesting a connection to the transient, random fractal conformation of polymer chains in the film's matrix.
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Affiliation(s)
- Daniel F Kienle
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80309, USA
| | - Daniel K Schwartz
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80309, USA.
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5
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Polyelectrolyte Multilayers on Soft Colloidal Nanosurfaces: A New Life for the Layer-By-Layer Method. Polymers (Basel) 2021; 13:polym13081221. [PMID: 33918844 PMCID: PMC8069484 DOI: 10.3390/polym13081221] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/04/2021] [Accepted: 04/05/2021] [Indexed: 02/07/2023] Open
Abstract
The Layer-by-Layer (LbL) method is a well-established method for the assembly of nanomaterials with controlled structure and functionality through the alternate deposition onto a template of two mutual interacting molecules, e.g., polyelectrolytes bearing opposite charge. The current development of this methodology has allowed the fabrication of a broad range of systems by assembling different types of molecules onto substrates with different chemical nature, size, or shape, resulting in numerous applications for LbL systems. In particular, the use of soft colloidal nanosurfaces, including nanogels, vesicles, liposomes, micelles, and emulsion droplets as a template for the assembly of LbL materials has undergone a significant growth in recent years due to their potential impact on the design of platforms for the encapsulation and controlled release of active molecules. This review proposes an analysis of some of the current trends on the fabrication of LbL materials using soft colloidal nanosurfaces, including liposomes, emulsion droplets, or even cells, as templates. Furthermore, some fundamental aspects related to deposition methodologies commonly used for fabricating LbL materials on colloidal templates together with the most fundamental physicochemical aspects involved in the assembly of LbL materials will also be discussed.
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6
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Francius G, Cervulle M, Clément E, Bellanger X, Ekrami S, Gantzer C, Duval JFL. Impacts of Mechanical Stiffness of Bacteriophage-Loaded Hydrogels on Their Antibacterial Activity. ACS APPLIED BIO MATERIALS 2021; 4:2614-2627. [PMID: 35014378 DOI: 10.1021/acsabm.0c01595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The elaboration of efficient hydrogel-based materials with antimicrobial properties requires a refined control of defining their physicochemical features, which includes mechanical stiffness, so as to properly mediate their antibacterial activity. In this work, we design hydrogels consisting of polyelectrolyte multilayer films for the loading of T4 and φX174 bacteria-killing viruses, also called bacteriophages. We investigate the antiadhesion and bactericidal performances of this biomaterial against Escherichia coli, with a specific focus on the effects of chemical cross-linking of the hydrogel matrix, which, in turn, mediates the hydrogel stiffness. Depending on the latter and on phage replication features, it is found that the hydrogels loaded with the bacteria-killing viruses make both contact killing (targeted bacteria are those adhered at the hydrogel surface) and release killing (planktonic bacteria are the targets) possible with ca. 20-80% efficiency after only 4 h of incubation at 25 °C as compared to cases where hydrogels are free of viruses. We further demonstrate the lack of dependence of virus diffusion within the hydrogel and of the maximal viral storage capacity on the hydrogel mechanical properties. In addition to the evidenced bacteriolytic activity of the phages loaded in the hydrogels, the antimicrobial property of the phage-loaded materials is shown to be partly controlled by the chemistry of the hydrogel skeleton and, more specifically, by the mobility of the peripheral free polycationic components, known for their ability to weaken and permeabilize membranes of bacteria, the latter then becoming "easier" targets for the viruses.
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Affiliation(s)
| | - Manon Cervulle
- Université de Lorraine, CNRS, LCPME, F-54000 Nancy, France
| | - Eloïse Clément
- Université de Lorraine, CNRS, LCPME, F-54000 Nancy, France
| | | | - Saeid Ekrami
- Université de Lorraine, CNRS, LCPME, F-54000 Nancy, France
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7
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Criado-Gonzalez M, Wagner D, Iqbal MH, Ontani A, Carvalho A, Schmutz M, Schlenoff JB, Schaaf P, Jierry L, Boulmedais F. Supramolecular tripeptide self-assembly initiated at the surface of coacervates by polyelectrolyte exchange. J Colloid Interface Sci 2021; 588:580-588. [PMID: 33450601 DOI: 10.1016/j.jcis.2020.12.066] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 01/07/2023]
Abstract
Spatial control of supramolecular self-assembly can yield compartmentalized structures, a key feature for the design of artificial cells. Inducing self-assembly from and on compartments is still a challenge. Polyelectrolyte complex coacervates are simple model droplet systems able to reproduce the basic features of membrane-less organelles, appearing in cells. Here, we demonstrate the supramolecular self-assembly of a phosphorylated tripeptide, Fmoc-FFpY (Fmoc: fluorenyl-methoxycarbonyl; F: phenyl alanine, pY: phosphorylated tyrosine), on the surface of poly(l-glutamic acid)/poly(allylamine hydrochloride) (PGA/PAH) complex coacervate microdroplets. The phosphorylated peptides self-assemble, without dephosphorylation, through ion pairing between the phosphate groups of Fmoc-FFpY and the amine groups of PAH. This process provides spontaneous capsules formed by an amorphous polyelectrolyte complex core surrounded by a structured peptide/PAH shell. Similar fibrillar Fmoc-FFpY self-assembled structures are obtained at the interface between the peptide solution and a PGA/PAH polyelectrolyte multilayer, a complex coacervate in the thin film or "multilayer" format. In contact with the peptide solution, PAH chains diffuse out of the coacervate or multilayer film and complex with Fmoc-FFpY at the solution interface, exchanging any PGA with which they were associated. Self-assembly of Fmoc-FFpY, now concentrated by complexation with PAH, follows quickly.
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Affiliation(s)
- Miryam Criado-Gonzalez
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France; Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, "Biomatériaux et Bioingénierie", 1 rue Eugène Boeckel, 67000 Strasbourg, France; Université de Strasbourg, Faculté de Chirurgie Dentaire, 7 rue Saint Elisabeth, 67000 Strasbourg, France
| | - Deborah Wagner
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Muhammad Haseeb Iqbal
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Aymeric Ontani
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Alain Carvalho
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Marc Schmutz
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Joseph B Schlenoff
- Florida State University, Department of Chemistry and Biochemistry, Tallahassee, 32306 FL, United States
| | - Pierre Schaaf
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, "Biomatériaux et Bioingénierie", 1 rue Eugène Boeckel, 67000 Strasbourg, France; Université de Strasbourg, Faculté de Chirurgie Dentaire, 7 rue Saint Elisabeth, 67000 Strasbourg, France.
| | - Loïc Jierry
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Fouzia Boulmedais
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France.
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8
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Campbell J, Vikulina AS. Layer-By-Layer Assemblies of Biopolymers: Build-Up, Mechanical Stability and Molecular Dynamics. Polymers (Basel) 2020; 12:E1949. [PMID: 32872246 PMCID: PMC7564420 DOI: 10.3390/polym12091949] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 12/18/2022] Open
Abstract
Rapid development of versatile layer-by-layer technology has resulted in important breakthroughs in the understanding of the nature of molecular interactions in multilayer assemblies made of polyelectrolytes. Nowadays, polyelectrolyte multilayers (PEM) are considered to be non-equilibrium and highly dynamic structures. High interest in biomedical applications of PEMs has attracted attention to PEMs made of biopolymers. Recent studies suggest that biopolymer dynamics determines the fate and the properties of such PEMs; however, deciphering, predicting and controlling the dynamics of polymers remains a challenge. This review brings together the up-to-date knowledge of the role of molecular dynamics in multilayers assembled from biopolymers. We discuss how molecular dynamics determines the properties of these PEMs from the nano to the macro scale, focusing on its role in PEM formation and non-enzymatic degradation. We summarize the factors allowing the control of molecular dynamics within PEMs, and therefore to tailor polymer multilayers on demand.
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Affiliation(s)
- Jack Campbell
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK;
| | - Anna S. Vikulina
- Fraunhofer Institute for Cell Therapy and Immunology, Branch Bioanalytics and Bioprocesses, Am Mühlenberg 13, 14476 Potsdam-Golm, Germany
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9
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Guzmán E, Rubio RG, Ortega F. A closer physico-chemical look to the Layer-by-Layer electrostatic self-assembly of polyelectrolyte multilayers. Adv Colloid Interface Sci 2020; 282:102197. [PMID: 32579951 DOI: 10.1016/j.cis.2020.102197] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/06/2020] [Accepted: 06/08/2020] [Indexed: 01/08/2023]
Abstract
The fabrication of polyelectrolyte multilayer films (PEMs) using the Layer-by-Layer (LbL) method is one of the most versatile approaches for manufacturing functional surfaces. This is the result of the possibility to control the assembly process of the LbL films almost at will, by changing the nature of the assembled materials (building blocks), the assembly conditions (pH, ionic strength, temperature, etc.) or even by changing some other operational parameters which may impact in the structure and physico-chemical properties of the obtained multi-layered films. Therefore, the understanding of the impact of the above mentioned parameters on the assembly process of LbL materials plays a critical role in the potential use of the LbL method for the fabrication of new functional materials with technological interest. This review tries to provide a broad physico-chemical perspective to the study of the fabrication process of PEMs by the LbL method, which allows one to take advantage of the many possibilities offered for this approach on the fabrication of new functional nanomaterials.
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Sarkis J, Vié V. Biomimetic Models to Investigate Membrane Biophysics Affecting Lipid-Protein Interaction. Front Bioeng Biotechnol 2020; 8:270. [PMID: 32373596 PMCID: PMC7179690 DOI: 10.3389/fbioe.2020.00270] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 03/16/2020] [Indexed: 12/16/2022] Open
Abstract
Biological membranes are highly dynamic in their ability to orchestrate vital mechanisms including cellular protection, organelle compartmentalization, cellular biomechanics, nutrient transport, molecular/enzymatic recognition, and membrane fusion. Controlling lipid composition of different membranes allows cells to regulate their membrane characteristics, thus modifying their physical properties to permit specific protein interactions and drive structural function (membrane deformation facilitates vesicle budding and fusion) and signal transduction. Yet, how lipids control protein structure and function is still poorly understood and needs systematic investigation. In this review, we explore different in vitro membrane models and summarize our current understanding of the interplay between membrane biophysical properties and lipid-protein interaction, taken as example few proteins involved in muscular activity (dystrophin), digestion and Legionella pneumophila effector protein DrrA. The monolayer model with its movable barriers aims to mimic any membrane deformation while surface pressure modulation imitates lipid packing and membrane curvature changes. It is frequently used to investigate peripheral protein binding to the lipid headgroups. Examples of how lipid lateral pressure modifies protein interaction and organization within the membrane are presented using various biophysical techniques. Interestingly, the shear elasticity and surface viscosity of the monolayer will increase upon specific protein(s) binding, supporting the importance of such mechanical link for membrane stability. The lipid bilayer models such as vesicles are not only used to investigate direct protein binding based on the lipid nature, but more importantly to assess how local membrane curvature (vesicles with different size) influence the binding properties of a protein. Also, supported lipid bilayer model has been used widely to characterize diffusion law of lipids within the bilayer and/or protein/biomolecule binding and diffusion on the membrane. These membrane models continue to elucidate important advances regarding the dynamic properties harmonizing lipid-protein interaction.
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Affiliation(s)
- Joe Sarkis
- Department of Cell Biology, Harvard Medical School and Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA, United States
- Univ Rennes, CNRS, IPR-UMR 6251, Rennes, France
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11
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Mannaris C, Yang C, Carugo D, Owen J, Lee JY, Nwokeoha S, Seth A, Teo BM. Acoustically responsive polydopamine nanodroplets: A novel theranostic agent. ULTRASONICS SONOCHEMISTRY 2020; 60:104782. [PMID: 31539725 DOI: 10.1016/j.ultsonch.2019.104782] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 08/21/2019] [Accepted: 09/06/2019] [Indexed: 05/06/2023]
Abstract
Ultrasound-induced cavitation has been used as a tool of enhancing extravasation and tissue penetration of anticancer agents in tumours. Initiating cavitation in tissue however, requires high acoustic intensities that are neither safe nor easy to achieve with current clinical systems. The use of cavitation nuclei can however lower the acoustic intensities required to initiate cavitation and the resulting bio-effects in situ. Microbubbles, solid gas-trapping nanoparticles, and phase shift nanodroplets are some examples in a growing list of proposed cavitation nuclei. Besides the ability to lower the cavitation threshold, stability, long circulation times, biocompatibility and biodegradability, are some of the desirable characteristics that a clinically applicable cavitation agent should possess. In this study, we present a novel formulation of ultrasound-triggered phase transition sub-micrometer sized nanodroplets (~400 nm) stabilised with a biocompatible polymer, polydopamine (PDA). PDA offers some important benefits: (1) facile fabrication, as dopamine monomers are directly polymerised on the nanodroplets, (2) high polymer biocompatibility, and (3) ease of functionalisation with other molecules such as drugs or targeting species. We demonstrate that the acoustic intensities required to initiate inertial cavitation can all be achieved with existing clinical ultrasound systems. Cell viability and haemolysis studies show that nanodroplets are biocompatible. Our results demonstrate the great potential of PDA nanodroplets as an acoustically active nanodevice, which is highly valuable for biomedical applications including drug delivery and treatment monitoring.
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Affiliation(s)
- Christophoros Mannaris
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK.
| | - Chuanxu Yang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
| | - Dario Carugo
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK; Mechatronics and Bioengineering Science Research Groups, Faculty of Engineering and the Environment, University of Southampton, Southampton, UK
| | - Joshua Owen
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK
| | - Jeong Yu Lee
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK
| | - Sandra Nwokeoha
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK
| | - Anjali Seth
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK
| | - Boon Mian Teo
- Institute of Biomedical Engineering, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK; Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China; School of Chemistry, Clayton Campus, Monash University Victoria, 3800, Australia.
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12
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The Anomalous Influence of Polyelectrolyte Concentration on the Deposition and Nanostructure of Poly(ethyleneimine)/Poly(acrylic acid) Multilayers. Molecules 2019; 24:molecules24112141. [PMID: 31174307 PMCID: PMC6600385 DOI: 10.3390/molecules24112141] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/04/2019] [Accepted: 06/05/2019] [Indexed: 11/29/2022] Open
Abstract
The deposition and nanostructure of polyelectrolyte (PEL) multilayers (PEMs) of branched poly(ethyleneimine)/poly(acrylic acid) (PEI/PAA) onto silicon substrates was studied in terms of the dependence of pH and the PEL concentration (cPEL) in the individual adsorption steps z. Both a commercial automatic dipping device and a homebuilt automatic stream coating device (flow cell) were used. Gravimetry, SFM, transmission (TRANS) and in situ attenuated total reflection (ATR) FTIR spectroscopy were used for the quantitative determination of the adsorbed amount, thickness, chemical composition and morphology of deposited PEMs, respectively. Firstly, the combination of pH = 10 for PEI and pH = 4 for PAA, where both PEL were predominantly in the neutral state, resulted in an extraordinarily high PEM deposition, while pH combinations, where one PEL component was charged, resulted in a significantly lower PEM deposition. This was attributed to both PEL conformation effects and acid/base interactions between basic PEI and acidic PAA. Secondly, for that pH combination an exponential relationship between PEM thickness and adsorption step z was found. Thirdly, based on the results of three independent methods, the course of the deposited amount of a PEM-10 (z = 10) versus cPEL in the range 0.001 to 0.015 M at pH = 10/4 was non-monotonous showing a pronounced maximum at cPEL = 0.005 M. Analogously, for cPEL = 0.005 M a maximum of roughness and structure size was found. Fourthly, related to that finding, in situ ATR-FTIR measurements gave evidence for the release of outermost located PEI upon PAA immersion (even step) and of outermost PAA upon PEI immersion (odd step) under formation of PEL complexes in solution. These studies help us to prepare PEL-based films with a defined thickness and morphology for interaction with biofluids in the biomedical and food fields.
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13
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Kienle DF, Schwartz DK. Complex Salt Dependence of Polymer Diffusion in Polyelectrolyte Multilayers. J Phys Chem Lett 2019; 10:987-992. [PMID: 30768907 DOI: 10.1021/acs.jpclett.9b00004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Polyelectrolyte multilayers (PEMs) have significant potential in many technologies, yet the dynamics of the constituent polymer chains remains poorly understood. We used total internal reflection fluorescence microscopy to observe microscopic single-molecule transport of fluorescently labeled poly-l-lysine (PLL) diffusing within the bulk of a PEM composed of PLL and poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (PAMPS) when exposed to NaCl solutions ranging in concentration from 0 to 2 M. Statistical analysis of PLL trajectories revealed motion that was nonergodic, subdiffusive, and temporally anticorrelated under all conditions. In contrast with previous macroscopic measurements of polymer diffusion within PEMs, the microscopic diffusion was 2-3 orders of magnitude faster and varied nonmonotonically with salt concentration in a way that was similar to trends previously associated with PEM swelling and viscoelastic properties. This trend in the anomalous diffusion was attributed to complex salt-dependent changes in the viscoelastic properties of the film that balanced intermolecular binding and molecular conformation.
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Affiliation(s)
- Daniel F Kienle
- Department of Chemical and Biological Engineering , University of Colorado , Boulder , Colorado 80309 , United States
| | - Daniel K Schwartz
- Department of Chemical and Biological Engineering , University of Colorado , Boulder , Colorado 80309 , United States
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14
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Ultra-slow diffusion of hexacyanoferrate anions in poly(diallyldimethyl ammonium chloride)-poly(acrylic acid sodium salt) multilayer films. J Colloid Interface Sci 2019; 539:306-314. [DOI: 10.1016/j.jcis.2018.12.073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 11/19/2022]
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15
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Park K, Jeong H, Tanum J, Yoo JC, Hong J. Poly-l-lysine/poly-l-glutamic acid-based layer-by-layer self-assembled multilayer film for nitric oxide gas delivery. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.09.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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16
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Madaboosi N, Uhlig K, Schmidt S, Vikulina AS, Möhwald H, Duschl C, Volodkin D. A “Cell-Friendly” Window for the Interaction of Cells with Hyaluronic Acid/Poly-l
-Lysine Multilayers. Macromol Biosci 2017; 18. [DOI: 10.1002/mabi.201700319] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 10/27/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Narayanan Madaboosi
- Fraunhofer Institute for Cell Therapy and Immunology; Branch Bioanalytics and Bioprocesses (Fraunhofer IZI-BB); Department Cellular Biotechnology & Biochips; Am Mühlenberg 13 14476 Potsdam-Golm Germany
- Max Planck Institute for Colloids and Interfaces; Am Mühlenberg 1 14476 Potsdam-Golm Germany
| | - Katja Uhlig
- Fraunhofer Institute for Cell Therapy and Immunology; Branch Bioanalytics and Bioprocesses (Fraunhofer IZI-BB); Department Cellular Biotechnology & Biochips; Am Mühlenberg 13 14476 Potsdam-Golm Germany
| | - Stephan Schmidt
- Fraunhofer Institute for Cell Therapy and Immunology; Branch Bioanalytics and Bioprocesses (Fraunhofer IZI-BB); Department Cellular Biotechnology & Biochips; Am Mühlenberg 13 14476 Potsdam-Golm Germany
- Heinrich-Heine-Universität Düsseldorf; Institut für Organische und Makromolekulare Chemie; Universiätsstr.1 40225 Düsseldorf Germany
| | - Anna S. Vikulina
- School of Science and Technology; Nottingham Trent University; Clifton Lane Nottingham NG11 8NS UK
| | - Helmuth Möhwald
- Max Planck Institute for Colloids and Interfaces; Am Mühlenberg 1 14476 Potsdam-Golm Germany
| | - Claus Duschl
- Fraunhofer Institute for Cell Therapy and Immunology; Branch Bioanalytics and Bioprocesses (Fraunhofer IZI-BB); Department Cellular Biotechnology & Biochips; Am Mühlenberg 13 14476 Potsdam-Golm Germany
| | - Dmitry Volodkin
- Fraunhofer Institute for Cell Therapy and Immunology; Branch Bioanalytics and Bioprocesses (Fraunhofer IZI-BB); Department Cellular Biotechnology & Biochips; Am Mühlenberg 13 14476 Potsdam-Golm Germany
- School of Science and Technology; Nottingham Trent University; Clifton Lane Nottingham NG11 8NS UK
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17
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Prokopovic VZ, Vikulina AS, Sustr D, Shchukina EM, Shchukin DG, Volodkin DV. Binding Mechanism of the Model Charged Dye Carboxyfluorescein to Hyaluronan/Polylysine Multilayers. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38908-38918. [PMID: 29035502 PMCID: PMC5682609 DOI: 10.1021/acsami.7b12449] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Biopolymer-based multilayers become more and more attractive due to the vast span of biological application they can be used for, e.g., implant coatings, cell culture supports, scaffolds. Multilayers have demonstrated superior capability to store enormous amounts of small charged molecules, such as drugs, and release them in a controlled manner; however, the binding mechanism for drug loading into the multilayers is still poorly understood. Here we focus on this mechanism using model hyaluronan/polylysine (HA/PLL) multilayers and a model charged dye, carboxyfluorescein (CF). We found that CF reaches a concentration of 13 mM in the multilayers that by far exceeds its solubility in water. The high loading is not related to the aggregation of CF in the multilayers. In the multilayers, CF molecules bind to free amino groups of PLL; however, intermolecular CF-CF interactions also play a role and (i) endow the binding with a cooperative nature and (ii) result in polyadsorption of CF molecules, as proven by fitting of the adsorption isotherm using the BET model. Analysis of CF mobility in the multilayers by fluorescence recovery after photobleaching has revealed that CF diffusion in the multilayers is likely a result of both jumping of CF molecules from one amino group to another and movement, together with a PLL chain being bound to it. We believe that this study may help in the design of tailor-made multilayers that act as advanced drug delivery platforms for a variety of bioapplications where high loading and controlled release are strongly desired.
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Affiliation(s)
- Vladimir Z. Prokopovic
- Branch Bioanalytics
and Bioprocesses (Fraunhofer IZI-BB), Fraunhofer
Institute for Cell Therapy and Immunology, Am Muehlenberg 13, 14476 Potsdam-Golm, Germany
| | - Anna S. Vikulina
- Branch Bioanalytics
and Bioprocesses (Fraunhofer IZI-BB), Fraunhofer
Institute for Cell Therapy and Immunology, Am Muehlenberg 13, 14476 Potsdam-Golm, Germany
- School of Science and Technology, Nottingham
Trent University, Clifton Lane, NG11 8NS Nottingham, U.K.
- E-mail: . Tel: +44 115 848 8062
| | - David Sustr
- Branch Bioanalytics
and Bioprocesses (Fraunhofer IZI-BB), Fraunhofer
Institute for Cell Therapy and Immunology, Am Muehlenberg 13, 14476 Potsdam-Golm, Germany
| | - Elena M. Shchukina
- Stephenson Institute
for Renewable Energy, University of Liverpool, L69 7ZF Liverpool, U.K.
| | - Dmitry G. Shchukin
- Stephenson Institute
for Renewable Energy, University of Liverpool, L69 7ZF Liverpool, U.K.
| | - Dmitry V. Volodkin
- School of Science and Technology, Nottingham
Trent University, Clifton Lane, NG11 8NS Nottingham, U.K.
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18
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Selin V, Ankner JF, Sukhishvili SA. Nonlinear Layer-by-Layer Films: Effects of Chain Diffusivity on Film Structure and Swelling. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01218] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Victor Selin
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - John F. Ankner
- Spallation
Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Svetlana A. Sukhishvili
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
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19
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Velk N, Uhlig K, Vikulina A, Duschl C, Volodkin D. Mobility of lysozyme in poly(l-lysine)/hyaluronic acid multilayer films. Colloids Surf B Biointerfaces 2016; 147:343-350. [DOI: 10.1016/j.colsurfb.2016.07.055] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 06/24/2016] [Accepted: 07/28/2016] [Indexed: 01/13/2023]
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20
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Vikulina AS, Anissimov YG, Singh P, Prokopović VZ, Uhlig K, Jaeger MS, von Klitzing R, Duschl C, Volodkin D. Temperature effect on the build-up of exponentially growing polyelectrolyte multilayers. An exponential-to-linear transition point. Phys Chem Chem Phys 2016; 18:7866-74. [PMID: 26911320 DOI: 10.1039/c6cp00345a] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, the effect of temperature on the build-up of exponentially growing polyelectrolyte multilayer films was investigated. It aims at understanding the multilayer growth mechanism as crucially important for the fabrication of tailor-made multilayer films. Model poly(L-lysine)/hyaluronic acid (PLL/HA) multilayers were assembled in the temperature range of 25-85 °C by layer-by-layer deposition using a dipping method. The film growth switches from the exponential to the linear regime at the transition point as a result of limited polymer diffusion into the film. With the increase of the build-up temperature the film growth rate is enhanced in both regimes; the position of the transition point shifts to a higher number of deposition steps confirming the diffusion-mediated growth mechanism. Not only the faster polymer diffusion into the film but also more porous/permeable film structure are responsible for faster film growth at higher preparation temperature. The latter mechanism is assumed from analysis of the film growth rate upon switching of the preparation temperature during the film growth. Interestingly, the as-prepared films are equilibrated and remain intact (no swelling or shrinking) during temperature variation in the range of 25-45 °C. The average activation energy for complexation between PLL and HA in the multilayers calculated from the Arrhenius plot has been found to be about 0.3 kJ mol(-1) for monomers of PLL. Finally, the following processes known to be dependent on temperature are discussed with respect to the multilayer growth: (i) polymer diffusion, (ii) polymer conformational changes, and (iii) inter-polymer interactions.
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Affiliation(s)
- Anna S Vikulina
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK. and Fraunhofer IZI-BB, Am Mühlenberg 13, 14424, Potsdam, Germany. and The Faculty of Fundamental Medicine, Laboratory of Medical Biophysics, Lomonosov Moscow State University, Moscow, 119991, Russia.
| | - Yuri G Anissimov
- School of Natural Sciences and Micro and Nano Technology Centre, Griffith University, Australia.
| | - Prateek Singh
- Fraunhofer IZI-BB, Am Mühlenberg 13, 14424, Potsdam, Germany. and Laboratory of Developmental Biology, Department of Medical Biochemistry and Molecular Biology, Institute of Biomedicine, University of Oulu, PO Box 5000, 90014 Oulu, Finland.
| | | | - Katja Uhlig
- Fraunhofer IZI-BB, Am Mühlenberg 13, 14424, Potsdam, Germany.
| | - Magnus S Jaeger
- Fraunhofer IZI-BB, Am Mühlenberg 13, 14424, Potsdam, Germany. and Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589 Berlin, Germany.
| | - Regine von Klitzing
- Stranski-Laboratorium für Physikalische und Theoretische Chemie, Technische Universität Berlin, Strasse des 17. Juni 124, D-10623 Berlin, Germany.
| | - Claus Duschl
- Fraunhofer IZI-BB, Am Mühlenberg 13, 14424, Potsdam, Germany.
| | - Dmitry Volodkin
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, UK. and Fraunhofer IZI-BB, Am Mühlenberg 13, 14424, Potsdam, Germany.
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21
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Knopf-Marques H, Singh S, Htwe SS, Wolfova L, Buffa R, Bacharouche J, Francius G, Voegel JC, Schaaf P, Ghaemmaghami AM, Vrana NE, Lavalle P. Immunomodulation with Self-Crosslinked Polyelectrolyte Multilayer-Based Coatings. Biomacromolecules 2016; 17:2189-98. [DOI: 10.1021/acs.biomac.6b00429] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Helena Knopf-Marques
- INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg, France
- Faculté
de Chirurgie Dentaire, Fédération de Médecine
Translationnelle de Strabourg, Fédération des Matériaux
et Nanosciences d’Alsace, Université de Strasbourg, 3 rue
Sainte Elisabeth, 67000 Strasbourg, France
| | - Sonali Singh
- Division
of Immunology, School of Life Sciences, Faculty of Medicine and Life
Sciences, University of Nottingham, Queen’s Medics, al Centre, Nottingham, NG7 2UH, United Kingdom
| | - Su Su Htwe
- Division
of Immunology, School of Life Sciences, Faculty of Medicine and Life
Sciences, University of Nottingham, Queen’s Medics, al Centre, Nottingham, NG7 2UH, United Kingdom
| | - Lucie Wolfova
- Contipro
a.s.,
Dolni Dobrouc 401 561 02 Dolni Dobrouc, Czech Republic
| | - Radovan Buffa
- Contipro
a.s.,
Dolni Dobrouc 401 561 02 Dolni Dobrouc, Czech Republic
| | - Jalal Bacharouche
- Laboratoire de Chimie Physique et Microbiologie pour l’Environnement CNRS UMR7564, 405 rue de Vandoeuvre, 54600 Villers-les-Nancy, France
| | - Grégory Francius
- Laboratoire de Chimie Physique et Microbiologie pour l’Environnement CNRS UMR7564, 405 rue de Vandoeuvre, 54600 Villers-les-Nancy, France
| | - Jean-Claude Voegel
- INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg, France
- Faculté
de Chirurgie Dentaire, Fédération de Médecine
Translationnelle de Strabourg, Fédération des Matériaux
et Nanosciences d’Alsace, Université de Strasbourg, 3 rue
Sainte Elisabeth, 67000 Strasbourg, France
| | - Pierre Schaaf
- INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg, France
- Faculté
de Chirurgie Dentaire, Fédération de Médecine
Translationnelle de Strabourg, Fédération des Matériaux
et Nanosciences d’Alsace, Université de Strasbourg, 3 rue
Sainte Elisabeth, 67000 Strasbourg, France
- Institut Charles Sadron, CNRS UPR 22, 23 rue du Lœss, 67034 Strasbourg, France
| | - Amir M. Ghaemmaghami
- Division
of Immunology, School of Life Sciences, Faculty of Medicine and Life
Sciences, University of Nottingham, Queen’s Medics, al Centre, Nottingham, NG7 2UH, United Kingdom
| | - Nihal Engin Vrana
- INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg, France
- Protip Medical, 8 Place de l’Hôpital, 67000 Strasbourg, France
| | - Philippe Lavalle
- INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg, France
- Faculté
de Chirurgie Dentaire, Fédération de Médecine
Translationnelle de Strabourg, Fédération des Matériaux
et Nanosciences d’Alsace, Université de Strasbourg, 3 rue
Sainte Elisabeth, 67000 Strasbourg, France
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22
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Fu L, Favier D, Charitat T, Gauthier C, Rubin A. A new tribological experimental setup to study confined and sheared monolayers. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:033903. [PMID: 27036787 DOI: 10.1063/1.4943670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 02/28/2016] [Indexed: 06/05/2023]
Abstract
We have developed an original experimental setup, coupling tribology, and velocimetry experiments together with a direct visualization of the contact. The significant interest of the setup is to measure simultaneously the apparent friction coefficient and the velocity of confined layers down to molecular scale. The major challenge of this experimental coupling is to catch information on a nanometer-thick sheared zone confined between a rigid spherical indenter of millimetric radius sliding on a flat surface at constant speed. In order to demonstrate the accuracy of this setup to investigate nanometer-scale sliding layers, we studied a model lipid monolayer deposited on glass slides. It shows that our experimental setup will, therefore, help to highlight the hydrodynamic of such sheared confined layers in lubrication, biolubrication, or friction on solid polymer.
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Affiliation(s)
- L Fu
- UPR22/CNRS, Institut Charles Sadron, Université de Strasbourg, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - D Favier
- UPR22/CNRS, Institut Charles Sadron, Université de Strasbourg, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - T Charitat
- UPR22/CNRS, Institut Charles Sadron, Université de Strasbourg, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - C Gauthier
- UPR22/CNRS, Institut Charles Sadron, Université de Strasbourg, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - A Rubin
- UPR22/CNRS, Institut Charles Sadron, Université de Strasbourg, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
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23
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What is really driving cell–surface interactions? Layer-by-layer assembled films may help to answer questions concerning cell attachment and response to biomaterials. Biointerphases 2016; 11:019009. [DOI: 10.1116/1.4943046] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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24
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25
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Selin V, Ankner JF, Sukhishvili SA. Diffusional Response of Layer-by-Layer Assembled Polyelectrolyte Chains to Salt Annealing. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00361] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Victor Selin
- Department
of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - John F. Ankner
- Spallation
Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Svetlana A. Sukhishvili
- Department
of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
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26
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Prokopović VZ, Duschl C, Volodkin D. Hyaluronic Acid/Poly-l-Lysine Multilayers as Reservoirs for Storage and Release of Small Charged Molecules. Macromol Biosci 2015; 15:1357-63. [PMID: 25981869 DOI: 10.1002/mabi.201500093] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 04/24/2015] [Indexed: 11/06/2022]
Abstract
Polyelectrolyte multilayer films are nowadays very attractive for bioapplications due to their tunable properties and ability to control cellular response. Here we demonstrate that multilayers made of hyaluronic acid and poly-l-lysine act as high-capacity reservoirs for small charged molecules. Strong accumulation within the film is explained by electrostatically driven binding to free charges of polyelectrolytes. Binding and release mechanisms are discussed based on charge balance and polymer dynamics in the film. Our results show that transport of molecules through the film-solution interface limits the release rate. The multilayers might serve as an effective platform for drug delivery and tissue engineering due to high potential for drug loading and controlled release.
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Affiliation(s)
- Vladimir Z Prokopović
- Fraunhofer IZI-BB, Am Muehlenberg 13, 14476 Potsdam, Germany.,University of Potsdam, Institute for Biochemistry and Biology, Maulbeerallee 2, 14469 Potsdam, Germany
| | - Claus Duschl
- Fraunhofer IZI-BB, Am Muehlenberg 13, 14476 Potsdam, Germany
| | - Dmitry Volodkin
- Fraunhofer IZI-BB, Am Muehlenberg 13, 14476 Potsdam, Germany.
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27
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Zhuk A, Selin V, Zhuk I, Belov B, Ankner JF, Sukhishvili SA. Chain conformation and dynamics in spin-assisted weak polyelectrolyte multilayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:3889-3896. [PMID: 25768113 DOI: 10.1021/acs.langmuir.5b00401] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report on the effect of the deposition technique on film layering, stability, and chain mobility in weak polyelectrolyte layer-by-layer (LbL) films. Ellipsometry and neutron reflectometry (NR) showed that shear forces arising during spin-assisted assembly lead to smaller amounts of adsorbed polyelectrolytes within LbL films, result in a higher degree of internal film order, and dramatically improve stability of assemblies in salt solutions as compared to dip-assisted LbL assemblies. The underlying flattening of polyelectrolyte chains in spin-assisted LbL films was also revealed as an increase in ionization degree of the assembled weak polyelectrolytes. As demonstrated by fluorescence recovery after photobleaching (FRAP), strong binding between spin-deposited polyelectrolytes results in a significant slowdown of chain diffusion in salt solutions as compared to dip-deposited films. Moreover, salt-induced chain intermixing in the direction perpendicular to the substrate is largely inhibited in spin-deposited films, resulting in only subdiffusional (<2 Å) chain displacements even after 200 h exposure to 1 M NaCl solutions. This persistence of polyelectrolyte layering has important ramifications for multistage drug delivery and optical applications of LbL assemblies.
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Affiliation(s)
- Aliaksandr Zhuk
- †Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Victor Selin
- †Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Iryna Zhuk
- †Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Benjamin Belov
- ‡Columbia High School, Maplewood, New Jersey 07040, United States
| | - John F Ankner
- §Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Svetlana A Sukhishvili
- †Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
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28
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Vikulina AS, Aleed ST, Paulraj T, Vladimirov YA, Duschl C, von Klitzing R, Volodkin D. Temperature-induced molecular transport through polymer multilayers coated with PNIPAM microgels. Phys Chem Chem Phys 2015; 17:12771-7. [DOI: 10.1039/c5cp01213a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Composite polymer films with temperature controlled permeability are designed by coating soft polyelectrolyte multilayers with PNIPAM microgels.
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Affiliation(s)
- A. S. Vikulina
- Fraunhofer Institute for Cell Therapy and Immunology
- 14476 Potsdam-Golm
- Germany
- The Faculty of Fundamental Medicine
- Laboratory of Medical Biophysics
| | - S. T. Aleed
- Stranski-Laboratorium für Physikalische und Theoretische Chemie
- Technische Universität Berlin
- D-10623 Berlin
- Germany
| | - T. Paulraj
- Fraunhofer Institute for Cell Therapy and Immunology
- 14476 Potsdam-Golm
- Germany
| | - Yu. A. Vladimirov
- The Faculty of Fundamental Medicine
- Laboratory of Medical Biophysics
- Lomonosov Moscow State University
- Moscow
- Russia
| | - C. Duschl
- Fraunhofer Institute for Cell Therapy and Immunology
- 14476 Potsdam-Golm
- Germany
| | - R. von Klitzing
- Stranski-Laboratorium für Physikalische und Theoretische Chemie
- Technische Universität Berlin
- D-10623 Berlin
- Germany
| | - D. Volodkin
- Fraunhofer Institute for Cell Therapy and Immunology
- 14476 Potsdam-Golm
- Germany
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29
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Yu C, Granick S. Revisiting polymer surface diffusion in the extreme case of strong adsorption. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:14538-14544. [PMID: 25423039 DOI: 10.1021/la503667c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Revisiting polymer surface adsorption with a level of quantification not possible at the time of earlier seminal contributions to this field, we employ fluorescence microscopy to quantify the in-plane diffusion of end-labeled polystyrene adsorbed onto quartz and mica from cyclohexane solution, mostly at 25 °C. Care is taken to prohibit a surface-hopping mechanism, and the experimental techniques are adapted to measurements that persist for up to a few days. The main conclusion is that we fail to observe a single Fickian diffusion coefficient: instead, diffusion displays a broad multicomponent spectrum, indicating that the heterogeneity of surface diffusion fails to average out even over these long times and over distances (∼600 nm, the diameter of a diffraction-limited spot) greatly exceeding the size of the polymer molecules. This holds generally when we vary the molecular weight, the surface roughness, and the temperature. It quantifies the long-believed scenario that strongly adsorbed polymer layers (monomer-surface interaction of more than 1k(B)T) intrinsically present diverse surface conformations that present heterogeneous environments to one another as they diffuse. Bearing in mind that in spite of adsorption from dilute solution the interfacial polymer concentration is high, ramifications of these findings are relevant to the interfacial mobility of polymer glasses, melts, and nanocomposites.
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Affiliation(s)
- Changqian Yu
- Departments of Materials Science and Engineering, ‡Chemical and Biomolecular Engineering, §Chemistry, and ∥Physics, University of Illinois , Urbana, Illinois 61801, United States
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30
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Prokopović VZ, Duschl C, Volodkin DV. Hyaluronic acid/poly-L-lysine multilayers coated with gold nanoparticles: cellular response and permeability study. POLYM ADVAN TECHNOL 2014. [DOI: 10.1002/pat.3370] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | - Claus Duschl
- Fraunhofer Institute for Biomedical Engineering; 14476 Potsdam-Golm Germany
| | - Dmitry V. Volodkin
- Fraunhofer Institute for Biomedical Engineering; 14476 Potsdam-Golm Germany
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31
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Amorim S, Martins A, Neves NM, Reis RL, Pires RA. Hyaluronic acid/poly-l-lysine bilayered silica nanoparticles enhance the osteogenic differentiation of human mesenchymal stem cells. J Mater Chem B 2014; 2:6939-6946. [DOI: 10.1039/c4tb01071j] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The coating of silica nanoparticles with a bilayer of poly-l-lysine and hyaluronic acid enhances the osteogenic differentiation of human bone marrow stem cells at low nanoparticle concentrations (25 μg mL−1 and 12.5 μg mL−1).
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Affiliation(s)
- Sara Amorim
- 3B's Research Group-Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4806-909 Taipas, Portugal
| | - Albino Martins
- 3B's Research Group-Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4806-909 Taipas, Portugal
| | - Nuno M. Neves
- 3B's Research Group-Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4806-909 Taipas, Portugal
| | - Rui L. Reis
- 3B's Research Group-Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4806-909 Taipas, Portugal
| | - Ricardo A. Pires
- 3B's Research Group-Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4806-909 Taipas, Portugal
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32
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33
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Xu L, Selin V, Zhuk A, Ankner JF, Sukhishvili SA. Molecular Weight Dependence of Polymer Chain Mobility within Multilayer Films. ACS Macro Lett 2013; 2:865-868. [PMID: 35607005 DOI: 10.1021/mz400413v] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fluorescence recovery after photobleaching has been applied to determine, to our knowledge for the first time, the molecular weight (Mw) dependence of lateral diffusion of polymer chains within layer-by-layer (LbL) films. As shown by neutron reflectometry, polyelectrolyte multilayers containing polymethacrylic acid (PMAA, Mw/Mn < 1.05) of various molecular weights assembled from solutions of low ionic strengths at pH 4.5, where film growth was linear, showed similar diffusion of PMAA in the direction perpendicular to the film surface. At a salt concentration sufficient for unfreezing electrostatically bonded chains, layer intermixing remained almost unaffected (changes <1.0 nm), while the lateral diffusion coefficient (D) scaled with the PMAA molecular weight as D ∼ Mw-1±0.05.
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Affiliation(s)
- Li Xu
- Department
of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Victor Selin
- Department
of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Aliaksandr Zhuk
- Department
of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - John F. Ankner
- Spallation Neutron
Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Svetlana A. Sukhishvili
- Department
of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
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34
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Ball V, Michel M, Toniazzo V, Ruch D. The Possibility of Obtaining Films by Single Sedimentation of Polyelectrolyte Complexes. Ind Eng Chem Res 2013. [DOI: 10.1021/ie303535s] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vincent Ball
- Advanced Materials and Structures,
Centre de Recherche Public Henri Tudor, ZAE Robert Steichen 5 rue
Bommel L-4940 Hautcharage, Luxembourg
- Institut National de la Santé et de la Recherche Médicale,
Unité Mixte de Recherche 1121, 11 rue Humann, 67085 Strasbourg
Cédex, France
| | - Marc Michel
- Advanced Materials and Structures,
Centre de Recherche Public Henri Tudor, ZAE Robert Steichen 5 rue
Bommel L-4940 Hautcharage, Luxembourg
| | - Valérie Toniazzo
- Advanced Materials and Structures,
Centre de Recherche Public Henri Tudor, ZAE Robert Steichen 5 rue
Bommel L-4940 Hautcharage, Luxembourg
| | - David Ruch
- Advanced Materials and Structures,
Centre de Recherche Public Henri Tudor, ZAE Robert Steichen 5 rue
Bommel L-4940 Hautcharage, Luxembourg
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35
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Abstract
Polyelectrolyte multilayer films are a versatile functionalization method of surfaces and rely on the alternated adsorption of oppositely charged species. Among such species, charged dyes can also be alternated with oppositely charged polymers, which is challenging from a fundamental point of view, because polyelectrolytes require a minimal number of charges, whereas even monovalent dyes can be incorporated during the alternated adsorption process. We will not only focus on organic dyes but also on their inorganic counterparts and on metal complexes. Such films offer plenty of possible applications in dye sensitized solar cells. In addition, dyes are massively used in the textile industry and in histology to stain textile fibers or tissues. However, the excess of non bound dyes poses serious environmental problems. It is hence of the highest interest to design materials able to adsorb such dyes in an almost irreversible manner. Polyelectrolyte multilayer films, owing to their ion exchange behavior can be useful for such a task allowing for impressive overconcentration of dyes with respect to the dye in solution. The actual state of knowledge of the interactions between charged dyes and adsorbed polyelectrolytes is the focus of this review article.
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Affiliation(s)
- Vincent Ball
- Institut National de la Santé et de la Recherche Médicale, UMR 1121, 11 rue Humann, Strasbourg Cédex 67085, France; E-Mail: ; Tel.: +33-3-90-24-32-58; Fax: +33-3-90-24-33-79
- Faculté de Chirurgie Dentaire, Université de Strasbourg, 1 Place de l'Hôpital, Strasbourg 67000, France
- Fédération de Médecine Translationelle de Strasbourg, 1 Place de l'Hôpital, Strasbourg 67000, France
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36
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Lee L, Johnston APR, Caruso F. Probing the dynamic nature of DNA multilayer films using Förster resonance energy transfer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12527-12535. [PMID: 22889012 DOI: 10.1021/la302587t] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
DNA films are of interest for use in a number of areas, including sensing, diagnostics, and as drug/gene delivery carriers. The specific base pairing of DNA materials can be used to manipulate their architecture and degradability. The programmable nature of these materials leads to complex and unexpected structures that can be formed from solution assembly. Herein, we investigate the structure of DNA multilayer films using Förster resonance energy transfer (FRET). The DNA films are assembled on silica particles by depositing alternating layers of homopolymeric diblocks (polyA(15)G(15) and polyT(15)C(15)) with fluorophore (polyA(15)G(15)-TAMRA) and quencher (polyT(15)C(15)-BHQ2) layers incorporated at predesigned locations throughout the films. Our results show that DNA films are dynamic structures that undergo rearrangement. This occurs when the multilayer films are perturbed during new layer formation through hybridization but can also take place spontaneously when left over time. These films are anticipated to be useful in drug delivery applications and sensing applications.
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Affiliation(s)
- Lillian Lee
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Melbourne, Victoria 3010, Australia
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37
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Costa E, Lloyd MM, Chopko C, Aguiar-Ricardo A, Hammond PT. Tuning smart microgel swelling and responsive behavior through strong and weak polyelectrolyte pair assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:10082-10090. [PMID: 22676290 PMCID: PMC3412153 DOI: 10.1021/la301586t] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The layer-by-layer (LbL) assembly of polyelectrolyte pairs on temperature and pH-sensitive cross-linked poly(N-isopropylacrylamide)-co-(methacrylic acid), poly(NIPAAm-co-MAA), microgels enabled a fine-tuning of the gel swelling and responsive behavior according to the mobility of the assembled polyelectrolyte (PE) pair and the composition of the outermost layer. Microbeads with well-defined morphology were initially prepared by synthesis in supercritical carbon dioxide. Upon LbL assembly of polyelectrolytes, interactions between the multilayers and the soft porous microgel led to differences in swelling and thermoresponsive behavior. For the weak PE pairs, namely poly(L-lysine)/poly(L-glutamic acid) and poly(allylamine hydrochloride)/poly(acrylic acid), polycation-terminated microgels were less swollen and more thermoresponsive than native microgel, whereas polyanion-terminated microgels were more swollen and not significantly responsive to temperature, in a quasi-reversible process with consecutive PE assembly. For the strong PE pair, poly(diallyldimethylammonium chloride)/poly(sodium styrene sulfonate), the differences among polycation and polyanion-terminated microgels are not sustained after the first PE bilayer due to extensive ionic cross-linking between the polyelectrolytes. The tendencies across the explored systems became less noteworthy in solutions with larger ionic strength due to overall charge shielding of the polyelectrolytes and microgel. ATR FT-IR studies correlated the swelling and responsive behavior after LbL assembly on the microgels with the extent of H-bonding and alternating charge distribution within the gel. Thus, the proposed LbL strategy may be a simple and flexible way to engineer smart microgels in terms of size, surface chemistry, overall charge and permeability.
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Affiliation(s)
- Eunice Costa
- REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Margaret M. Lloyd
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Caroline Chopko
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ana Aguiar-Ricardo
- REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Paula T. Hammond
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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38
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Hassouna F, Kashyap S, Laachachi A, Ball V, Chapron D, Toniazzo V, Ruch D. Peculiar reduction of graphene oxide into graphene after diffusion in exponentially growing polyelectrolyte multilayers. J Colloid Interface Sci 2012; 377:489-96. [PMID: 22503661 DOI: 10.1016/j.jcis.2012.03.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2011] [Revised: 02/14/2012] [Accepted: 03/19/2012] [Indexed: 11/30/2022]
Abstract
In the present work, in situ reduction of graphene oxide (GO) into graphene was preformed, after diffusion in exponentially growing polyelectrolyte multilayers, using sodium citrate as the reducing agent. First, the graphene oxide was obtained by treating a commercial grade of Expanded Graphite (EG). Based on XRD and Raman spectroscopy results, a complete exfoliation of graphene nanopellets down to one layer was achieved during the oxidation process. Secondly, the diffusion of GO was carried out in an exponentially growing polyelectrolyte multilayer film made from poly(diallyldimethylammonium chloride) as the polycation and from poly(acrylic acid) as the polyanion. Electrical conductivity of the GO based films was measured during the reduction process as a function of time. The conductivity reached values of the order of 10(-4) S cm(-1), whereas the pristine polyelectrolyte multilayer was highly insulating (∼10(-8) S cm(-1)). The conductivity also reached a maximal value after about 24 h of reduction and decreased for longer reduction duration. Some tentative explanations for this peculiar finding will be given.
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Affiliation(s)
- F Hassouna
- Advanced Materials and Structures, Centre de Recherche Public Henri Tudor, 66 rue de Luxembourg, L-4002 Esch-sur-Alzette, Luxembourg
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39
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Vogt C, Ball V, Mutterer J, Schaaf P, Voegel JC, Senger B, Lavalle P. Mobility of Proteins in Highly Hydrated Polyelectrolyte Multilayer Films. J Phys Chem B 2012; 116:5269-78. [DOI: 10.1021/jp300028v] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Cédric Vogt
- Institut National de la Santé et de la Recherche Médicale, Unité 977, 11 rue Humann, 67085 Strasbourg Cedex, France
- Faculté de Chirurgie
Dentaire, Université de Strasbourg, 1 place de l’Hôpital, 67000 Strasbourg, France
| | - Vincent Ball
- Institut National de la Santé et de la Recherche Médicale, Unité 977, 11 rue Humann, 67085 Strasbourg Cedex, France
- Faculté de Chirurgie
Dentaire, Université de Strasbourg, 1 place de l’Hôpital, 67000 Strasbourg, France
| | - Jérôme Mutterer
- Centre National de la Recherche
Scientifique, UPR 2357, Institut de Biologie Moléculaire des Plantes, 12 rue du Général Zimmer,
67084 Strasbourg Cedex, France
| | - Pierre Schaaf
- Centre National de la Recherche
Scientifique, UPR 22, Institut Charles Sadron, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Jean-Claude Voegel
- Institut National de la Santé et de la Recherche Médicale, Unité 977, 11 rue Humann, 67085 Strasbourg Cedex, France
- Faculté de Chirurgie
Dentaire, Université de Strasbourg, 1 place de l’Hôpital, 67000 Strasbourg, France
| | - Bernard Senger
- Institut National de la Santé et de la Recherche Médicale, Unité 977, 11 rue Humann, 67085 Strasbourg Cedex, France
- Faculté de Chirurgie
Dentaire, Université de Strasbourg, 1 place de l’Hôpital, 67000 Strasbourg, France
| | - Philippe Lavalle
- Institut National de la Santé et de la Recherche Médicale, Unité 977, 11 rue Humann, 67085 Strasbourg Cedex, France
- Faculté de Chirurgie
Dentaire, Université de Strasbourg, 1 place de l’Hôpital, 67000 Strasbourg, France
- Hôpitaux Universitaires de Strasbourg, 1 place de l’Hôpital,
67000 Strasbourg, France
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40
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Michel M, Toniazzo V, Ruch D, Ball V. Deposition Mechanisms in Layer-by-Layer or Step-by-Step Deposition Methods: From Elastic and Impermeable Films to Soft Membranes with Ion Exchange Properties. ACTA ACUST UNITED AC 2012. [DOI: 10.5402/2012/701695] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The modification of solid-liquid interfaces with polyelectrolyte multilayer films appears as a versatile tool to confer new functionalities to surfaces in environmentally friendly conditions. Indeed such films are deposited by alternate dipping of the substrates in aqueous solutions containing the interacting species or spraying these solutions on the surface of the substrate. Spin coating is more and more used to produce similar films. The aim of this short review article is to provide an unifying picture about the deposition mechanisms of polyelectrolyte multilayer films. Often those films are described as growing either in a linear or in a supralinear growth regime with the number of deposited “layer pairs”. The growth regime of PEM films can be controlled by operational parameters like the temperature or the ionic strength of the used solutions. The control over the growth regime of the films as a function of the number of deposition steps allows to control their functional properties: either hard and impermeable films in the case of linear growth or soft and permeable films in the case of supralinear growth. Such different properties can be obtained with a given combination of interacting species by changing the operational parameters during the film deposition.
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Affiliation(s)
- Marc Michel
- Advanced Materials and Struct Department, Public Research Center Henri Tudor, 66 Rue de Luxembourg, 4002 Esch-sur-Alzette, Luxembourg
| | - Valérie Toniazzo
- Advanced Materials and Struct Department, Public Research Center Henri Tudor, 66 Rue de Luxembourg, 4002 Esch-sur-Alzette, Luxembourg
| | - David Ruch
- Advanced Materials and Struct Department, Public Research Center Henri Tudor, 66 Rue de Luxembourg, 4002 Esch-sur-Alzette, Luxembourg
| | - Vincent Ball
- Advanced Materials and Struct Department, Public Research Center Henri Tudor, 66 Rue de Luxembourg, 4002 Esch-sur-Alzette, Luxembourg
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41
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Volodkin D, Skirtach A, Möhwald H. Bioapplications of light-sensitive polymer films and capsules assembled using the layer-by-layer technique. POLYM INT 2012. [DOI: 10.1002/pi.4182] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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42
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Xu L, Kozlovskaya V, Kharlampieva E, Ankner JF, Sukhishvili SA. Anisotropic Diffusion of Polyelectrolyte Chains within Multilayer Films. ACS Macro Lett 2011; 2012:127-130. [PMID: 23019538 DOI: 10.1021/mz200075x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We have found diffusion of polyelectrolyte chains within multilayer films to be highly anisotropic, with the preferential chain motion parallel to the substrate. The degree of anisotropy was quantified by a combination of fluorescence recovery after photobleaching and neutron reflectometry, probing chain diffusion in directions parallel and perpendicular to the substrate, respectively. Chain mobility was controlled by ionic strength of annealing solutions and steric hindrance to ionic pairing of interacting polyelectrolytes.
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Affiliation(s)
- Li Xu
- Department of Chemistry, Chemical
Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Veronika Kozlovskaya
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama
35294, United States
| | - Eugenia Kharlampieva
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama
35294, United States
| | - John F. Ankner
- Spallation
Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee
37831, United States
| | - Svetlana A. Sukhishvili
- Department of Chemistry, Chemical
Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
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43
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Gucht JVD, Spruijt E, Lemmers M, Cohen Stuart MA. Polyelectrolyte complexes: Bulk phases and colloidal systems. J Colloid Interface Sci 2011; 361:407-22. [DOI: 10.1016/j.jcis.2011.05.080] [Citation(s) in RCA: 408] [Impact Index Per Article: 31.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Revised: 05/27/2011] [Accepted: 05/28/2011] [Indexed: 11/17/2022]
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44
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Xu L, Ankner JF, Sukhishvili SA. Steric Effects in Ionic Pairing and Polyelectrolyte Interdiffusion within Multilayered Films: A Neutron Reflectometry Study. Macromolecules 2011. [DOI: 10.1021/ma200986d] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Li Xu
- Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - John F. Ankner
- Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Svetlana A. Sukhishvili
- Department of Chemistry, Chemical Biology and Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
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45
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Biomimetic assembly of polyelectrolyte multilayers containing phosvitin monitored with reflectometric interference spectroscopy. Biointerphases 2011; 6:54-62. [DOI: 10.1116/1.3589176] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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46
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Bechler SL, Lynn DM. Design and Synthesis of a Fluorescently End-Labeled Poly(β-amino ester): Application to the Characterization of Degradable Polyelectrolyte Multilayers. JOURNAL OF POLYMER SCIENCE. PART A, POLYMER CHEMISTRY 2011; 49:1572-1581. [PMID: 21666772 PMCID: PMC3110734 DOI: 10.1002/pola.24578] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We report the synthesis of a fluorescently end-labeled analog of a synthetic and degradable cationic poly(β-amino ester) (PBAE; polymer 1) used in past studies for the delivery of DNA and the layer-by-layer assembly of erodible polyelectrolyte multilayers (PEMs). The synthesis of an analog of polymer 1 having acrylate functionalized end groups provided a platform for the introduction of fluorescent labels by post-polymerization conjugate addition of amine-functionalized fluorophores. This approach enabled the synthesis of fluorescently end-labeled polymer (polymer 1(FL)) with molecular weights and polydispersities (M(n) = 18,000; PDI ~1.8) similar to those used in past studies for the fabrication of PEMs using polymer 1. Layer-by-layer assembly of PEMs using polymer 1(FL) and poly(styrene sulfonate) enabled characterization of film erosion and, for the first time, direct observation of the release of cationic polymer from these assemblies using fluorescence microscopy and fluorometry. Our results shed new light on the behaviors of the cationic components of these PEMs and could prove useful for the design of thin films for a range of different controlled release applications. Our results also provide new fluorescent cationic polymer probes that could be useful for characterization of the behaviors of PBAEs in other fundamental or applied biotechnological contexts.
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Affiliation(s)
- Shane L. Bechler
- Department of Chemical and Biological Engineering, 1415 Engineering Drive, University of Wisconsin-Madison, Madison, WI 53706
| | - David M. Lynn
- Department of Chemical and Biological Engineering, 1415 Engineering Drive, University of Wisconsin-Madison, Madison, WI 53706
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47
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Shen L, Chaudouet P, Ji J, Picart C. pH-Amplified Multilayer Films Based on Hyaluronan: Influence of HA Molecular Weight and Concentration on Film Growth and Stability. Biomacromolecules 2011; 12:1322-31. [DOI: 10.1021/bm200070k] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Liyan Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Minatec, Grenoble Institute of Technology and LMGP, 3 parvis Louis Néel, F-38016 Grenoble Cedex, France
| | - Patrick Chaudouet
- Minatec, Grenoble Institute of Technology and LMGP, 3 parvis Louis Néel, F-38016 Grenoble Cedex, France
| | - Jian Ji
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Catherine Picart
- Minatec, Grenoble Institute of Technology and LMGP, 3 parvis Louis Néel, F-38016 Grenoble Cedex, France
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48
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Lavalle P, Voegel JC, Vautier D, Senger B, Schaaf P, Ball V. Dynamic aspects of films prepared by a sequential deposition of species: perspectives for smart and responsive materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2011; 23:1191-221. [PMID: 21264957 DOI: 10.1002/adma.201003309] [Citation(s) in RCA: 161] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Revised: 10/26/2010] [Indexed: 05/23/2023]
Abstract
The deposition of surface coatings using a step-by-step approach from mutually interacting species allows the fabrication of so called "multilayered films". These coatings are very versatile and easy to produce in environmentally friendly conditions, mostly from aqueous solution. They find more and more applications in many hot topic areas, such as in biomaterials and nanoelectronics but also in stimuli-responsive films. We aim to review the most recent developments in such stimuli-responsive coatings based on layer-by-layer (LBL) depositions in relationship to the properties of these coatings. The most investigated stimuli are based on changes in ionic strength, temperature, exposure to light, and mechanical forces. The possibility to induce a transition from linear to exponential growth in thickness and to change the charge compensation from "intrinsic" to "extrinsic" by controlling parameters such as temperature, pH, and ionic strength are the ways to confer their responsiveness to the films. Chemical post-modifications also allow to significantly modify the film properties.
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Affiliation(s)
- Philippe Lavalle
- Institut National de la Santé et de la Recherche Médicale, Unité 977, 11 rue Humann, Strasbourg Cedex, France
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Kim YH, Lee YM, Park J, Ko MJ, Park JH, Jung W, Yoo PJ. Spontaneous surface flattening via layer-by-layer assembly of interdiffusing polyelectrolyte multilayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:17756-17763. [PMID: 20883048 DOI: 10.1021/la103282m] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We report a facile means to achieve planarization of nonflat or patterned surfaces by utilizing the layer-by-layer (LbL) assembly of highly diffusive polyelectrolytes. The polyelectrolyte pair of linear polyethylenimine (LPEI) and poly(acrylic acid) (PAA) is known to maintain intrinsic diffusive mobility atop or even inside ionically complexed films prepared by LbL deposition. Under highly hydrated and swollen conditions during the sequential film buildup process, the LbL-assembled film of LPEI/PAA undergoes a topological self-deformation for minimizing surface area to satisfy the minimum-energy state of the surface, which eventually induces surface planarization along with spontaneous filling of surface textures or nonflat structures. This result is clearly different from other cases of applying nondiffusive polyelectrolytes onto patterned surfaces or confined structures, wherein surface roughening or incomplete filling is developed with the LbL assembly. Therefore, the approach proposed in this study can readily allow for surface planarization with the deposition of a relatively thin layer of polyelectrolyte multilayers. In addition, this strategy of planarization was extended to the surface modification of an indium tin oxide (ITO) substrate, where surface smoothing and enhanced optical transmittance were obtained without sacrificing the electronic conductivity. Furthermore, we investigated the potential applicability of surface-treated ITO substrates as photoelectrodes of dye-sensitized solar cells prepared at room temperature. As a result, an enhanced photoconversion efficiency and improved device characteristics were obtained because of the synergistic role of polyelectrolyte deposition in improving the optical properties and acting as a blocking layer to prevent electron recombination with the electrolytes.
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Affiliation(s)
- Young Hun Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
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Volodkin D, Skirtach A, Madaboosi N, Blacklock J, von Klitzing R, Lankenau A, Duschl C, Möhwald H. IR-light triggered drug delivery from micron-sized polymer biocoatings. J Control Release 2010; 148:e70-1. [DOI: 10.1016/j.jconrel.2010.07.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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