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Zlotnikov ID, Ezhov AA, Dobryakova NV, Kudryashova EV. Disulfide Cross-Linked Polymeric Redox-Responsive Nanocarrier Based on Heparin, Chitosan and Lipoic Acid Improved Drug Accumulation, Increased Cytotoxicity and Selectivity to Leukemia Cells by Tumor Targeting via "Aikido" Principle. Gels 2024; 10:157. [PMID: 38534575 DOI: 10.3390/gels10030157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/13/2024] [Accepted: 02/17/2024] [Indexed: 03/28/2024] Open
Abstract
We have developed a micellar formulation of anticancer drugs based on chitosan and heparin grafted with lipoic and oleic acids that can release the cytotoxic cargo (doxorubicin) in response to external stimuli, such as increased glutathione concentration-a hallmark of cancer. Natural polysaccharides (heparin and chitosan) provide the pH sensitivity of the nanocarrier: the release of doxorubicin (Dox) is enhanced in a slightly acidic environment (tumor microenvironment). Fatty acid residues are necessary for the formation of nanoparticles (micelles) and solubilization of cytostatics in a hydrophobic core. Lipoic acid residues provide the formation of a labile S-S cross-linking between polymer chains (the first variant) or covalently attached doxorubicin molecules through glutathione-sensitive S-S bridges (the second variant)-both determine Redox sensitivity of the anticancer drugs carriers stable in blood circulation and disintegrate after intracellular uptake in the tumor cells. The release of doxorubicin from micelles occurs slowly (20%/6 h) in an environment with a pH of 7.4 and the absence of glutathione, while in a slightly acidic environment and in the presence of 10 mM glutathione, the rate increases up to 6 times, with an increase in the effective concentration up to 5 times after 7 h. The permeability of doxorubicin in micellar formulations (covalent S-S cross-linked and not) into Raji, K562, and A875 cancer cells was studied using FTIR, fluorescence spectroscopy and confocal laser scanning microscopy (CLSM). We have shown dramatically improved accumulation, decreased efflux, and increased cytotoxicity compared to doxorubicin control with three tumor cell lines: Raji, K562, and A875. At the same time, cytotoxicity and permeability for non-tumor cells (HEK293T) are significantly lower, increasing the selectivity index against tumor cells by several times.
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Affiliation(s)
- Igor D Zlotnikov
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
| | - Alexander A Ezhov
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory, 1/2, 119991 Moscow, Russia
| | - Natalia V Dobryakova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
| | - Elena V Kudryashova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia
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Zlotnikov ID, Savchenko IV, Kudryashova EV. Fluorescent Probes with Förster Resonance Energy Transfer Function for Monitoring the Gelation and Formation of Nanoparticles Based on Chitosan Copolymers. J Funct Biomater 2023; 14:401. [PMID: 37623646 PMCID: PMC10455860 DOI: 10.3390/jfb14080401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 08/26/2023] Open
Abstract
Nanogel-forming polymers such as chitosan and alginic acid have a number of practical applications in the fields of drug delivery, food technology and agrotechnology as biocompatible, biodegradable polymers. Unlike bulk macrogel formation, which is followed by visually or easily detectable changes and physical parameters, such as viscosity or turbidity, the formation of nanogels is not followed by such changes and is therefore very difficult to track. The counterflow extrusion method (or analogues) enables gel nanoparticle formation for certain polymers, including chitosan and its derivatives. DLS or TEM, which are typically used for their characterization, only allow for the study of the already-formed nanoparticles. Alternatively, one might introduce a fluorescent dye into the gel-forming polymer, with the purpose of monitoring the effect of its microenvironment on the fluorescence spectra. But apparently, this approach does not provide a sufficiently specific signal, as the microenvironment may be affected by a big number of various factors (such as pH changes) including but not limited to gel formation per se. Here, we propose a new approach, based on the FRET effect, which we believe is much more specific and enables the elucidation of nanogel formation process in real time. Tryptophan-Pyrene is suggested as one of the donor-acceptor pairs, yielding the FRET effect when the two compounds are in close proximity to one another. We covalently attached Pyrene (the acceptor) to the chitosan (or PEG-chitosan) polymeric chain. The amount of introduced Pyrene was low enough to produce no significant effect on the properties of the resulting gel nanoparticles, but high enough to detect the FRET effect upon its interaction with Trp. When the Pyr-modified chitosan and Trp are both present in the solution, no FRET effect is observed. But as soon as the gel formation is initiated using the counterflow extrusion method, the FRET effect is easily detectable, manifested in a sharp increase in the fluorescence intensity of the pyrene acceptor and reflecting the gel formation process in real time. Apparently, the gel formation promotes the Trp-Pyr stacking interaction, which is deemed necessary for the FRET effect, and which does not occur in the solution. Further, we observed a similar FRET effect when the chitosan gel formation is a result of the covalent crosslinking of chitosan chains with genipin. Interestingly, using ovalbumin, having numerous Trp exposed on the protein surface instead of individual Trp yields a FRET effect similar to Trp. In all cases, we were able to detect the pH-, concentration- and temperature-dependent behaviors of the polymers as well as the kinetics of the gel formation for both nanogels and macrogels. These findings indicate a broad applicability of FRET-based analysis in biomedical practice, ranging from the optimization of gel formation to the encapsulation of therapeutic agents to food and biomedical technologies.
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Affiliation(s)
| | | | - Elena V. Kudryashova
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1/3, 119991 Moscow, Russia; (I.D.Z.)
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Urbaniak T, García-Briones GS, Zhigunov A, Hladysh S, Adrian E, Lobaz V, Krunclová T, Janoušková O, Pop-Georgievski O, Kubies D. Quaternized Chitosan/Heparin Polyelectrolyte Multilayer Films for Protein Delivery. Biomacromolecules 2022; 23:4734-4748. [DOI: 10.1021/acs.biomac.2c00926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomasz Urbaniak
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Square 2, 162 06 Prague, Czech Republic
- Department of Physical Chemistry and Biophysics, Pharmaceutical Faculty, Wroclaw Medical University, Borowska 211, 50-556 Wrocław, Poland
| | - Gabriela S. García-Briones
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Square 2, 162 06 Prague, Czech Republic
| | - Alexander Zhigunov
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Square 2, 162 06 Prague, Czech Republic
| | - Sviatoslav Hladysh
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Square 2, 162 06 Prague, Czech Republic
| | - Edyta Adrian
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Square 2, 162 06 Prague, Czech Republic
| | - Volodymyr Lobaz
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Square 2, 162 06 Prague, Czech Republic
| | - Tereza Krunclová
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Square 2, 162 06 Prague, Czech Republic
| | - Olga Janoušková
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Square 2, 162 06 Prague, Czech Republic
- Jan Purkyňe University in Ústí nad Labem, Faculty of Science, Pasteurova 1, 400 96 Ústí nad Labem, Czech Republic
| | - Ognen Pop-Georgievski
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Square 2, 162 06 Prague, Czech Republic
| | - Dana Kubies
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Square 2, 162 06 Prague, Czech Republic
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Gao H, Hu P, Sun G, Tian Y, Wang L, Mo H, Liu C, Zhang J, Shen J. Decellularized Scaffold-based Poly(ethylene glycol) Biomimetic Vascular Patches Modified with Polyelectrolyte Multilayer of Heparin and Chitosan: Preparation and Vascular Tissue Engineering Applications in a Porcine Model. J Mater Chem B 2022; 10:1077-1084. [DOI: 10.1039/d1tb02631c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanical property mismatch between vascular patches and native blood vessels can result in post-operation failure, so it is important to develop vascular patches that mimic the biomechanical properties of...
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Pahal S, Boranna R, Prashanth GR, Varma MM. Simplifying Molecular Transport in Polyelectrolyte Multilayer Thin Films. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Suman Pahal
- Institute for Stem Cell Science and Regenerative Medicine (inStem) Bengaluru Karnataka 560065 India
- Centre for Nano Science and Engineering Indian Institute of Science Bengaluru Karnataka 560012 India
| | - Rakshith Boranna
- Department of Electronics and Communication Engineering National Institute of Technology Goa Farmagudi Ponda Goa 403401 India
| | - Gurusiddappa R. Prashanth
- Department of Electronics and Communication Engineering National Institute of Technology Goa Farmagudi Ponda Goa 403401 India
| | - Manoj M. Varma
- Centre for Nano Science and Engineering Indian Institute of Science Bengaluru Karnataka 560012 India
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Polyelectrolyte Multilayer Films Based on Natural Polymers: From Fundamentals to Bio-Applications. Polymers (Basel) 2021; 13:polym13142254. [PMID: 34301010 PMCID: PMC8309355 DOI: 10.3390/polym13142254] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/06/2021] [Accepted: 07/06/2021] [Indexed: 02/06/2023] Open
Abstract
Natural polymers are of great interest in the biomedical field due to their intrinsic properties such as biodegradability, biocompatibility, and non-toxicity. Layer-by-layer (LbL) assembly of natural polymers is a versatile, simple, efficient, reproducible, and flexible bottom-up technique for the development of nanostructured materials in a controlled manner. The multiple morphological and structural advantages of LbL compared to traditional coating methods (i.e., precise control over the thickness and compositions at the nanoscale, simplicity, versatility, suitability, and flexibility to coat surfaces with irregular shapes and sizes), make LbL one of the most useful techniques for building up advanced multilayer polymer structures for application in several fields, e.g., biomedicine, energy, and optics. This review article collects the main advances concerning multilayer assembly of natural polymers employing the most used LbL techniques (i.e., dipping, spray, and spin coating) leading to multilayer polymer structures and the influence of several variables (i.e., pH, molar mass, and method of preparation) in this LbL assembly process. Finally, the employment of these multilayer biopolymer films as platforms for tissue engineering, drug delivery, and thermal therapies will be discussed.
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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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Taketa TB, Rocha Neto JBM, Dos Santos DM, Fiamingo A, Beppu MM, Campana-Filho SP, Cohen RE, Rubner MF. Tracking Sulfonated Polystyrene Diffusion in a Chitosan/Carboxymethyl Cellulose Layer-by-Layer Film: Exploring the Internal Architecture of Nanocoatings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:4985-4994. [PMID: 32316733 DOI: 10.1021/acs.langmuir.0c00544] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Since chitosan presents the ability to interact with a wide range of molecules, it has been one of the most popular natural polymers for the construction of layer-by-layer thin films. In this study, depth-profiling X-ray photoelectron spectroscopy (XPS) was employed to track the diffusion of sulfonated polystyrene (SPS) in carboxymethyl cellulose/chitosan (CMC/Chi) multilayers. Our findings suggest that the CMC/Chi film does not constitute an electrostatic barrier sufficient to block diffusion of SPS, and that diffusion can be controlled by adjusting the diffusion time and the molecular weight of the polymers that compose the CMC/Chi system. In addition to monitoring the diffusion, it was also possible to observe a process of preferential interaction between Chi and SPS. Thus, the nitrogen N 1s peak, due to functional groups found exclusively in chitosan chains, was the key factor to identifying the molecular interactions involving chitosan and the different polyanions. Accordingly, the presence of a strong polyanion such as SPS shifts the N 1s peak to a higher level of binding energy. Such results highlight that understanding the fundamentals of polymer interactions is a major step to fine-tuning the internal architecture of LbL structures for specific applications (e.g., drug release).
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Affiliation(s)
- Thiago B Taketa
- School of Chemical Engineering, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | | | - Danilo M Dos Santos
- Institute of Chemistry of São Carlos, University of São Paulo, São Carlos, São Paulo 13566-590, Brazil
| | - Anderson Fiamingo
- Institute of Chemistry of São Carlos, University of São Paulo, São Carlos, São Paulo 13566-590, Brazil
| | - Marisa M Beppu
- School of Chemical Engineering, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | | | - Robert E Cohen
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Michael F Rubner
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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9
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Ferrara V, Zito G, Arrabito G, Cataldo S, Scopelliti M, Giordano C, Vetri V, Pignataro B. Aqueous Processed Biopolymer Interfaces for Single-Cell Microarrays. ACS Biomater Sci Eng 2020; 6:3174-3186. [PMID: 33463257 PMCID: PMC7997111 DOI: 10.1021/acsbiomaterials.9b01871] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Single-cell microarrays are emerging tools to unravel intrinsic diversity within complex cell populations, opening up new approaches for the in-depth understanding of highly relevant diseases. However, most of the current methods for their fabrication are based on cumbersome patterning approaches, employing organic solvents and/or expensive materials. Here, we demonstrate an unprecedented green-chemistry strategy to produce single-cell capture biochips onto glass surfaces by all-aqueous inkjet printing. At first, a chitosan film is easily inkjet printed and immobilized onto hydroxyl-rich glass surfaces by electrostatic immobilization. In turn, poly(ethylene glycol) diglycidyl ether is grafted on the chitosan film to expose reactive epoxy groups and induce antifouling properties. Subsequently, microscale collagen spots are printed onto the above surface to define the attachment area for single adherent human cancer cells harvesting with high yield. The reported inkjet printing approach enables one to modulate the collagen area available for cell attachment in order to control the number of captured cells per spot, from single-cells up to double- and multiple-cell arrays. Proof-of-principle of the approach includes pharmacological treatment of single-cells by the model drug doxorubicin. The herein presented strategy for single-cell array fabrication can constitute a first step toward an innovative and environmentally friendly generation of aqueous-based inkjet-printed cellular devices.
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Affiliation(s)
- Vittorio Ferrara
- Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Giovanni Zito
- Dipartimento di Promozione della Salute, Materno-Infantile, Medicina Interna e Specialistica di Eccellenza "G. D'Alessandro" (ProMISE), Sezione di Malattie Endocrine, del Ricambio e della Nutrizione, Università di Palermo, Piazza delle Cliniche 2, 90127 Palermo, Sicilia, Italy
| | - Giuseppe Arrabito
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Sebastiano Cataldo
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Michelangelo Scopelliti
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Carla Giordano
- Dipartimento di Promozione della Salute, Materno-Infantile, Medicina Interna e Specialistica di Eccellenza "G. D'Alessandro" (ProMISE), Sezione di Malattie Endocrine, del Ricambio e della Nutrizione, Università di Palermo, Piazza delle Cliniche 2, 90127 Palermo, Sicilia, Italy
| | - Valeria Vetri
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Bruno Pignataro
- Dipartimento di Fisica e Chimica-Emilio Segrè, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
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Carmagnola I, Chiono V, Abrigo M, Ranzato E, Martinotti S, Ciardelli G. Tailored functionalization of poly(L-lactic acid) substrates at the nanoscale to enhance cell response. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:526-546. [PMID: 30773129 DOI: 10.1080/09205063.2019.1580954] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Poly(L-lactic) acid (PLLA) has been widely employed in tissue engineering due to its mechanical properties, biodegradability and biocompatibility. The layer-by-layer (LbL) technique was here proposed as a simple method to impart bioactivity to the surface of PLLA substrates. Aminolysis treatment was applied to introduce amino groups on the surface of PLLA solvent cast films. Then, PLLA films were coated with heparin (HE)/chitosan (CH) multilayer by the LbL technique. Each functionalization step was characterized through physico-chemical and morphological analyses. Aminolysis treatment increased film surface wettability (64.8° ± 2.4° against 74.6° ± 1.3° for untreated PLLA) due to the formation of surface amino groups, which were quantified by acid orange colorimetric assay (0.05 nmol/mm2). After the deposition of 9 layers, the static contact angle varied between values close to 40° C (HE-based layer) and 60 °C (CH-based layer), showing the typical alternate trend of LbL coating. The successful HE/CH deposition was confirmed by ATR-FTIR and X-ray photoelectron spectroscopy (XPS) analyses. Particularly, XPS spectra of coated samples showed the presence of nitrogen (indicative of HE and CH deposition), and sulfur (indicative of HE deposition). The amount of deposited HE was quantified by Taylor's Blue colorimetric method: after the deposition of 19 and 20 layers the HE concentration was around 33 µg/cm2. Finally, in vitro studies performed using HaCaT immortalized human skin keratinocytes, C2C12 immortalized mouse myoblasts and human fibroblasts demonstrated that HE/CH multilayer-coated PLLA is a promising substrate for soft tissue engineering, as cell response may be modulated by changing the surface chemical properties.
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Affiliation(s)
- Irene Carmagnola
- a Department of Mechanical and Aerospace Engineering , Politecnico di Torino , Turin , Italy.,b Politecnico di Torino , POLITO BIOMedLAB , Turin , Italy
| | - Valeria Chiono
- a Department of Mechanical and Aerospace Engineering , Politecnico di Torino , Turin , Italy.,b Politecnico di Torino , POLITO BIOMedLAB , Turin , Italy.,c CNR-IPCF , National Research Council-Institute for Chemical and Physical Processes , Pisa , Italy
| | - Martina Abrigo
- a Department of Mechanical and Aerospace Engineering , Politecnico di Torino , Turin , Italy
| | - Elia Ranzato
- d Department of Science and Technological Innovation , University of Oriental Piedmont , Alessandria , Italy
| | - Simona Martinotti
- d Department of Science and Technological Innovation , University of Oriental Piedmont , Alessandria , Italy
| | - Gianluca Ciardelli
- a Department of Mechanical and Aerospace Engineering , Politecnico di Torino , Turin , Italy.,b Politecnico di Torino , POLITO BIOMedLAB , Turin , Italy.,c CNR-IPCF , National Research Council-Institute for Chemical and Physical Processes , Pisa , Italy
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Criado-Gonzalez M, Fernandez-Gutierrez M, San Roman J, Mijangos C, Hernández R. Local and controlled release of tamoxifen from multi (layer-by-layer) alginate/chitosan complex systems. Carbohydr Polym 2018; 206:428-434. [PMID: 30553342 DOI: 10.1016/j.carbpol.2018.11.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 10/29/2018] [Accepted: 11/06/2018] [Indexed: 12/26/2022]
Abstract
Herein, multilayer polysaccharide films were proposed and characterized as biomaterials for the local and controlled release of an antitumoral drug. To that aim, multilayer films of alginate (Alg) and chitosan (Chi) were built up through spray assisted layer-by-layer (LbL) technique employing an automatic equipment. A specific drug against breast cancer, tamoxifen (TMX), was incorporated in different intermediate positions of the multilayer Alg/Chi films. Our findings highlight that Alg/Chi multilayer films can be employed for sustained and local TMX delivery and their therapeutic effect can be modulated and optimized by the number of bilayers deposited over the loaded tamoxifen, the quantity of tamoxifen loaded in several intermediate positions and the total area of the film.
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Affiliation(s)
- Miryam Criado-Gonzalez
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), c/ Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Mar Fernandez-Gutierrez
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), c/ Juan de la Cierva, 3, 28006 Madrid, Spain; CIBER-BBN, c/ Monforte de Lemos 3-5, Pabellón 11, 28029, Madrid, Spain
| | - Julio San Roman
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), c/ Juan de la Cierva, 3, 28006 Madrid, Spain; CIBER-BBN, c/ Monforte de Lemos 3-5, Pabellón 11, 28029, Madrid, Spain
| | - Carmen Mijangos
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), c/ Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Rebeca Hernández
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), c/ Juan de la Cierva, 3, 28006 Madrid, Spain.
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Carretero A, Soares da Costa D, Reis RL, Pashkuleva I. Extracellular matrix-inspired assembly of glycosaminoglycan–collagen fibers. J Mater Chem B 2017; 5:3103-3106. [DOI: 10.1039/c7tb00704c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We report on the fabrication of fibers exclusively from the extracellular matrix components by interfacial complexation without using any crosslinking agent.
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Affiliation(s)
- A. Carretero
- 3B's Research Group—Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Taipas
| | - D. Soares da Costa
- 3B's Research Group—Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Taipas
| | - R. 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
- 4805-017 Taipas
| | - I. Pashkuleva
- 3B's Research Group—Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4805-017 Taipas
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Criado M, Rebollar E, Nogales A, Ezquerra TA, Boulmedais F, Mijangos C, Hernández R. Quantitative Nanomechanical Properties of Multilayer Films Made of Polysaccharides through Spray Assisted Layer-by-Layer Assembly. Biomacromolecules 2016; 18:169-177. [PMID: 27976857 DOI: 10.1021/acs.biomac.6b01449] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Nanomechanical properties of alginate/chitosan (Alg/Chi) multilayer films, obtained through spray assisted layer-by-layer assembly, were studied by means of PeakForce quantitative nanomechanical mapping atomic force microscopy (PF-QNM AFM). Prepared at two different alginate concentrations (1.0 and 2.5 mg/mL) and a fixed chitosan concentration (1.0 mg/mL), Alg/Chi films have an exponential growth in thickness with a transition to a linear growth toward a plateau by increasing the number of deposited bilayers. Height, elastic modulus, deformation, and adhesion maps were simultaneously recorded depending on the number of deposited bilayers. The elastic modulus of Alg/Chi films was found to be related to the mechanism of growth in contrast to the adhesion and deformation. A comparison of the nanomechanical properties obtained for non-cross-linked and thermally cross-linked Alg/Chi films revealed an increase of the elastic modulus after cross-linking regardless alginate concentration. The incorporation of iron oxide nanoparticles (NPs), during the spray preparation of the films, gave rise to nanocomposite Alg/Chi films with increased elastic moduli with the number of incorporated NPs layers. Deformation maps of the films strongly suggested the presence of empty spaces associated with the method of preparation. Finally, adhesion measurements point out to a significant role of NPs on the increase of the adhesion values found for nanocomposite films.
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Affiliation(s)
- Miryam Criado
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC , Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Esther Rebollar
- Instituto de Química Física Rocasolano, IQFR-CSIC , Serrano 119, 28006 Madrid, Spain
| | - Aurora Nogales
- Instituto de Estructura de la Materia, IEM-CSIC , Serrano 121, 28006 Madrid, Spain
| | - Tiberio A Ezquerra
- Instituto de Estructura de la Materia, IEM-CSIC , Serrano 121, 28006 Madrid, Spain
| | - Fouzia Boulmedais
- Institut Charles Sadron, Centre National de la Recherche Scientifique, Université de Strasbourg , 23 rue du Loess, 67034 Cedex 2 Strasbourg, France
| | - Carmen Mijangos
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC , Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Rebeca Hernández
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC , Juan de la Cierva, 3, 28006 Madrid, Spain
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14
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Teixeira R, Reis RL, Pashkuleva I. Influence of the sulfation degree of glycosaminoglycans on their multilayer assembly with poly-l-lysine. Colloids Surf B Biointerfaces 2016; 145:567-575. [DOI: 10.1016/j.colsurfb.2016.05.069] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 05/03/2016] [Accepted: 05/25/2016] [Indexed: 10/21/2022]
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15
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Free-standing polysaccharide composite films: Improved preparation and physical properties. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.07.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Aston R, Wimalaratne M, Brock A, Lawrie G, Grøndahl L. Interactions between Chitosan and Alginate Dialdehyde Biopolymers and Their Layer-by-Layer Assemblies. Biomacromolecules 2015; 16:1807-17. [DOI: 10.1021/acs.biomac.5b00383] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Robyn Aston
- School of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane QLD-4072, Australia
| | - Medini Wimalaratne
- School of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane QLD-4072, Australia
| | - Aidan Brock
- School of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane QLD-4072, Australia
| | - Gwendolyn Lawrie
- School of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane QLD-4072, Australia
| | - Lisbeth Grøndahl
- School of Chemistry and Molecular
Biosciences, The University of Queensland, Brisbane QLD-4072, Australia
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17
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Azzam F, Moreau C, Cousin F, Menelle A, Bizot H, Cathala B. Reversible modification of structure and properties of cellulose nanofibril-based multilayered thin films induced by postassembly acid treatment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:2800-2807. [PMID: 25706711 DOI: 10.1021/acs.langmuir.5b00211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A postassembly acid-treatment consisting of an immersion in 5 mM HCl solution was applied to carboxylated cellulose nanofibrils (CNF)-poly(allylamine) hydrochloride (PAH) multilayered thin films. Our results show that the treatment did not affect the overall thickness of the films without any loss of the components. However, a modification of the surface morphology was observed, as well as the swelling behavior. The process was perfectly reversible since the original structure was recovered when the thin films were rinsed by ultrapure water. Moreover, a more pronounced antireflective character was detected for the treated films. The origin of these reversible modifications was discussed. Notably, the scattering length density (SLD) profiles of the films before and after treatment support the idea of a structural reorganization of the components within the film driven by the change of their charge densities induced by the acid treatment.
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Affiliation(s)
- Firas Azzam
- INRA, UR1268 Biopolymères Interactions Assemblages , 44316 Nantes, France
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18
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Bhalerao UM, Valiveti AK, Acharya J, Halve AK, Kaushik MP. Controlled release studies of antimalarial 1, 3, 5-trisubstituted-2-pyrazolines from biocompatible chitosan–heparin Layer-by-Layer (LbL) self assembled thin films. Colloids Surf B Biointerfaces 2015; 125:151-9. [DOI: 10.1016/j.colsurfb.2014.11.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 11/05/2014] [Accepted: 11/12/2014] [Indexed: 12/19/2022]
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19
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Junka K, Sundman O, Salmi J, Österberg M, Laine J. Multilayers of cellulose derivatives and chitosan on nanofibrillated cellulose. Carbohydr Polym 2014; 108:34-40. [DOI: 10.1016/j.carbpol.2014.02.061] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 02/18/2014] [Accepted: 02/19/2014] [Indexed: 11/30/2022]
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20
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Karahan HE, Eyüboğlu L, Kıyılar D, Demirel AL. pH-stability and pH-annealing of H-bonded multilayer films prepared by layer-by-layer spin-assembly. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.04.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Easton CD, Bullock AJ, Gigliobianco G, McArthur SL, MacNeil S. Application of layer-by-layer coatings to tissue scaffolds – development of an angiogenic biomaterial. J Mater Chem B 2014; 2:5558-5568. [DOI: 10.1039/c4tb00448e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Development of flexible coating strategies to promote angiogenesis is critical to effectively treat chronic, non-healing wounds.
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Affiliation(s)
- C. D. Easton
- CSIRO Manufacturing Flagship
- Clayton VIC 3168, Australia
| | - A. J. Bullock
- Department of Engineering Materials
- University of Sheffield
- Kroto Research Institute
- Broad Lane, UK
| | - G. Gigliobianco
- Department of Engineering Materials
- University of Sheffield
- Kroto Research Institute
- Broad Lane, UK
| | - S. L. McArthur
- Biotactical Engineering Group
- IRIS
- Faculty of Engineering and Industrial Sciences
- Swinburne University of Technology
- Hawthorn, Australia
| | - S. MacNeil
- Department of Engineering Materials
- University of Sheffield
- Kroto Research Institute
- Broad Lane, UK
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22
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Takahashi S, Watahiki R, Tomida K, Wang B, Anzai JI. Voltammetric Studies on Gold Electrodes Coated with Chitosan-Containing Layer-by-Layer Films. MATERIALS (BASEL, SWITZERLAND) 2013; 6:5427-5439. [PMID: 28788399 PMCID: PMC5452795 DOI: 10.3390/ma6115427] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 11/11/2013] [Accepted: 11/15/2013] [Indexed: 11/29/2022]
Abstract
Gold (Au) electrodes coated with layer-by-layer (LbL) thin films composed of chitosan (CHI) were prepared to evaluate the redox properties of hexaammine ruthenium ions, Ru(NH₃)₆3+, and ferricyanide ions, Fe(CN)₆3- LbL films were prepared on an Au electrode by electrostatic LbL deposition using polycationic CHI and poly(vinyl sulfate) (PVS) or poly(acrylic acid) (PAA) as anionic component. Redox peak current in cyclic voltammetry of Ru(NH₃)₆3+ on the CHI/PVS and CHI/PAA film-coated electrodes increased with increasing thickness of the films. Interestingly, the cyclic voltammograms showed two pair of redox peaks, originating from Ru(NH₃)₆3+ diffusing across the LbL layers and from those confined in the film. The results were rationalized in terms of the electrostatic interactions between Ru(NH₃)₆3+ and excess negative charges in the LbL films originating from PVS and PAA. In contrast, Fe(CN)₆3- was not confined in the LbL films due to electrostatic repulsion of Fe(CN)₆3- and excess negative charges. Significant amounts of Ru(NH₃)₆3+ were confined in the films at pH 7.0, whereas few ions were bound at pH 3.0 due to the reduced net negative charge in the films. The results suggest a potential use of the CHI-containing LbL films as scaffold for immobilizing positively charged ionic species on the electrode surface.
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Affiliation(s)
- Shigehiro Takahashi
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Ryota Watahiki
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Kohji Tomida
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Baozhen Wang
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong University, 44 WenhuaXilu, Jinan, Shandong 250012, China.
| | - Jun-Ichi Anzai
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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23
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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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24
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Gilbert JB, Rubner MF, Cohen RE. Depth-profiling X-ray photoelectron spectroscopy (XPS) analysis of interlayer diffusion in polyelectrolyte multilayers. Proc Natl Acad Sci U S A 2013; 110:6651-6. [PMID: 23569265 PMCID: PMC3637782 DOI: 10.1073/pnas.1222325110] [Citation(s) in RCA: 133] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Functional organic thin films often demand precise control over the nanometer-level structure. Interlayer diffusion of materials may destroy this precise structure; therefore, a better understanding of when interlayer diffusion occurs and how to control it is needed. X-ray photoelectron spectroscopy paired with C60(+) cluster ion sputtering enables high-resolution analysis of the atomic composition and chemical state of organic thin films with depth. Using this technique, we explore issues common to the polyelectrolyte multilayer field, such as the competition between hydrogen bonding and electrostatic interactions in multilayers, blocking interlayer diffusion of polymers, the exchange of film components with a surrounding solution, and the extent and kinetics of interlayer diffusion. The diffusion coefficient of chitosan (M = ∼100 kDa) in swollen hydrogen-bonded poly(ethylene oxide)/poly(acrylic acid) multilayer films was examined and determined to be 1.4*10(-12) cm(2)/s. Using the high-resolution data, we show that upon chitosan diffusion into the hydrogen-bonded region, poly(ethylene oxide) is displaced from the film. Under the conditions tested, a single layer of poly(allylamine hydrochloride) completely stops chitosan diffusion. We expect our results to enhance the understanding of how to control polyelectrolyte multilayer structure, what chemical compositional changes occur with diffusion, and under what conditions polymers in the film exchange with the solution.
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Affiliation(s)
| | - Michael F. Rubner
- Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
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25
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Cado G, Kerdjoudj H, Chassepot A, Lefort M, Benmlih K, Hemmerlé J, Voegel JC, Jierry L, Schaaf P, Frère Y, Boulmedais F. Polysaccharide films built by simultaneous or alternate spray: a rapid way to engineer biomaterial surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:8470-8478. [PMID: 22554108 DOI: 10.1021/la300563s] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We investigated polysaccharide films obtained by simultaneous and alternate spraying of a chitosan (CHI) solution as polycation and hyaluronic acid (HA), alginate (ALG), and chondroitin sulfate (CS) solutions as polyanions. For simultaneous spraying, the film thickness increases linearly with the cumulative spraying time and passes through a maximum for polyanion/CHI molar charge ratios lying between 0.6 and 1.2. The size of polyanion/CHI complexes formed in solution was compared with the simultaneously sprayed film growth rate as a function of the polyanion/CHI molar charge ratio. A good correlation was found. This suggests the importance of polyanion/polycation complexation in the simultaneous spraying process. Depending on the system, the film topography is either liquid-like or granular. Film biocompatibility was evaluated using human gingival fibroblasts. A small or no difference is observed in cell viability and adhesion between the two deposition processes. The CHI/HA system appears to be the best for cell adhesion inducing the clustering of CD44, a cell surface HA receptor, at the membrane of cells. Simultaneous or alternate spraying of CHI/HA appears thus to be a convenient and fast procedure for biomaterial surface modifications.
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Affiliation(s)
- G Cado
- Centre National de la Recherche Scientifique, Institut Charles Sadron, UPR 22, 23 rue du Loess, 67034 Strasbourg Cedex, France
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26
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Ye X, Hu X, Wang H, Liu J, Zhao Q. Polyelectrolyte multilayer film on decellularized porcine aortic valve can reduce the adhesion of blood cells without affecting the growth of human circulating progenitor cells. Acta Biomater 2012; 8:1057-67. [PMID: 22122977 DOI: 10.1016/j.actbio.2011.11.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Revised: 11/05/2011] [Accepted: 11/08/2011] [Indexed: 10/15/2022]
Abstract
Polyelectrolyte multilayer film modification could be an effective method to reduce the immunological and inflammatory response of the xenogeneic scaffold in vivo, and may also be applied to tissue-engineered heart valve in contact with blood. The objectives of this study are to test heparin-chitosan multilayer film as an antithrombotic coating reagent for decellularized aortic heart valve and the biocompatibility of the modified valvular surface. The adhesion and geometric deformation of platelets were demonstrated by scanning electron microscopy. The quantitative assay of platelet activation was determined by measuring the production of soluble P-selectin. Moreover, the leukocytes' adhesion, erythrocyte hemolysis, and whole blood clotting time studies were performed to gain information on the hemocompatibility of this biomaterial. Human-blood-derived endothelial progenitor cells (EPCs) were cultured and the adhesion and growth of EPCs on the surface-modified PDAV were assessed. The results showed that heparin-chitosan multilayer film could be coated on the decellularized valvular scaffolds, and improved their hemocompatibility with respect to a substantial reduction of platelet adhesion and activation. The modified valve also significantly reduced leukocytes adhesion, erythrocyte hemolysis, and whole blood clotting time. Seeding with EPCs achieved a confluent monolayer on the surface of the decellularized matrix. The in vitro studies performed in this work suggest that it may be reasonable to use heparin-chitosan multilayer film as a means of surface modification to improve the blood compatibility of decellularized valvular scaffold.
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27
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Hammond PT. Engineering materials layer-by-layer: Challenges and opportunities in multilayer assembly. AIChE J 2011. [DOI: 10.1002/aic.12769] [Citation(s) in RCA: 170] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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28
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Lundin M, Solaqa F, Thormann E, Macakova L, Blomberg E. Layer-by-layer assemblies of chitosan and heparin: effect of solution ionic strength and pH. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:7537-7548. [PMID: 21574585 DOI: 10.1021/la200441u] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The growth of polysaccharide multilayers consisting of positively charged chitosan (CH) and negatively charged heparin (HEP) was monitored in situ by employing a quartz crystal microbalance (QCM-D) and dual-polarization interferometry (DPI). The main focus was on how the physicochemical properties of the solution affect the growth and structure of the resulting multilayer film. These results showed that when increasing the ionic strength of the polysaccharide solutions at a fixed pH, both the "dry" (optical) (DPI) mass and wet (QCM) mass of the adsorbed multilayer film increased. The same effect was found when increasing the pH while keeping the ionic strength constant. Furthermore, the growth of multilayers showed an exponential-like behavior independent of the solution conditions that were used in this study. It was also established that chitosan was the predominant species present in the chitosan-heparin multilayer film. We discuss the viscoelastic properties of the adsorbed layers and their variation during the multilayer buildup. Interestingly and contrary to common interpretation of the QCM-D results, we found that under one particular solution condition (pH 4.2 and 30 mM NaCl) the increase in the dissipation of oscillation energy from the adsorbed layer was a consequence of layer stiffening rather than indicating a more hydrated and viscous film. On the basis of the widely used Voigt viscoelastic model for an adsorbed layer, we show that it is the film viscosity and shear that define the layer viscoelasticity (structure) of the film and not the absolute value of energy dissipation, which in fact can be very misleading.
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Affiliation(s)
- Maria Lundin
- Surface and Corrosion Science, Department of Chemistry, Royal Institute of Technology, Drottning Kristinas väg 51, SE-10044 Stockholm, Sweden
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29
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Almodóvar J, Place LW, Gogolski J, Erickson K, Kipper MJ. Layer-by-Layer Assembly of Polysaccharide-Based Polyelectrolyte Multilayers: A Spectroscopic Study of Hydrophilicity, Composition, and Ion Pairing. Biomacromolecules 2011; 12:2755-65. [DOI: 10.1021/bm200519y] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Jorge Almodóvar
- Department of Chemical and Biological Engineering and ‡School of Biomedical Engineering, 1370 Campus Delivery, Colorado State University, Fort Collins, Colorado 80523-1370, United States
| | - Laura W. Place
- Department of Chemical and Biological Engineering and ‡School of Biomedical Engineering, 1370 Campus Delivery, Colorado State University, Fort Collins, Colorado 80523-1370, United States
| | - Jarrod Gogolski
- Department of Chemical and Biological Engineering and ‡School of Biomedical Engineering, 1370 Campus Delivery, Colorado State University, Fort Collins, Colorado 80523-1370, United States
| | - Kristin Erickson
- Department of Chemical and Biological Engineering and ‡School of Biomedical Engineering, 1370 Campus Delivery, Colorado State University, Fort Collins, Colorado 80523-1370, United States
| | - Matt J. Kipper
- Department of Chemical and Biological Engineering and ‡School of Biomedical Engineering, 1370 Campus Delivery, Colorado State University, Fort Collins, Colorado 80523-1370, United States
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30
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Guzmán E, Cavallo JA, Chuliá-Jordán R, Gómez C, Strumia MC, Ortega F, Rubio RG. pH-induced changes in the fabrication of multilayers of poly(acrylic acid) and chitosan: fabrication, properties, and tests as a drug storage and delivery system. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:6836-6845. [PMID: 21561105 DOI: 10.1021/la200522r] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Multilayers of poly(acrylic acid), PAA, and chitosan, CHI, have been built by the layer-by-layer (LbL) method from aqueous solutions at different pH values and analyzed by the dissipative quartz crystal microbalance (D-QCM) and ellipsometry. The results showed that under all of the assembly conditions considered the growth of the films is nonlinear. The thickness of the PAA layers increases as the pH of the assembling solutions decreases, whereas the adsorption of CHI is almost unaffected by the pH conditions. The comparison of the thickness obtained by D-QCM and by ellipsometry has allowed us to calculate the water content of the films, showing that the multilayers are highly hydrated, with an average water content higher than 20%. The analysis of D-QCM data has provided high-frequency values of the complex shear modulus that are in the megapascal range and shows a transition from mainly viscous to mainly elastic behavior for the added PAA layers, depending on the pH. The monomer surface density in each layer (obtained from the combination of ellipsometry and differential refractive index measurements) indicated that the monomer density depends on the assembly conditions. It was found that the adsorption kinetics is a bimodal process, with characteristic times that depend on the number and nature of the layers. Finally, the possibility of using of these multilayers as a drug storage and delivery system has been evaluated.
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Affiliation(s)
- Eduardo Guzmán
- Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain
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31
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Adsorption of IgG on/in a PAH/PSS multilayer film: Layer structure and cell response. J Colloid Interface Sci 2011; 354:31-7. [DOI: 10.1016/j.jcis.2010.10.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2010] [Revised: 09/03/2010] [Accepted: 10/07/2010] [Indexed: 11/23/2022]
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32
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Silva SS, Mano JF, Reis RL. Potential applications of natural origin polymer-based systems in soft tissue regeneration. Crit Rev Biotechnol 2010; 30:200-21. [PMID: 20735324 DOI: 10.3109/07388551.2010.505561] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Despite the many advances in tissue engineering approaches, scientists still face significant challenges in trying to repair and replace soft tissues. Nature-inspired routes involving the creation of polymer-based systems of natural origins constitute an interesting alternative route to produce novel materials. The interest in these materials comes from the possibility of constructing multi-component systems that can be manipulated by composition allowing one to mimic the tissue environment required for the cellular regeneration of soft tissues. For this purpose, factors such as the design, choice, and compatibility of the polymers are considered to be key factors for successful strategies in soft tissue regeneration. More recently, polysaccharide-protein based systems have being increasingly studied and proposed for the treatment of soft tissues. The characteristics, properties, and compatibility of the resulting materials investigated in the last 10 years, as well as commercially available matrices or those currently under investigation are the subject matter of this review.
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Affiliation(s)
- Simone S Silva
- 3B's Research Group- Biomaterials, Biodegradables and Biomimetics, Dept. of Polymer Engineering, University of Minho, Headquarters of European Institute of Excellence on Tissue Engineering and Regenerative Medicine - AvePark, Zona Industrial da Gandra - Caldas das Taipas - 4806-909 Guimarães- Portugal.
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33
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Svensson O, Arnebrant T. Mucin layers and multilayers — Physicochemical properties and applications. Curr Opin Colloid Interface Sci 2010. [DOI: 10.1016/j.cocis.2010.05.015] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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34
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Crouzier T, Boudou T, Picart C. Polysaccharide-based polyelectrolyte multilayers. Curr Opin Colloid Interface Sci 2010. [DOI: 10.1016/j.cocis.2010.05.007] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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35
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Cranston ED, Gray DG, Rutland MW. Direct surface force measurements of polyelectrolyte multilayer films containing nanocrystalline cellulose. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:17190-17197. [PMID: 20925376 DOI: 10.1021/la1030729] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Polyelectrolyte multilayer films containing nanocrystalline cellulose (NCC) and poly(allylamine hydrochloride) (PAH) make up a new class of nanostructured composite with applications ranging from coatings to biomedical devices. Moreover, these materials are amenable to surface force studies using colloid-probe atomic force microscopy (CP-AFM). For electrostatically assembled films with either NCC or PAH as the outermost layer, surface morphology was investigated by AFM and wettability was examined by contact angle measurements. By varying the surrounding ionic strength and pH, the relative contributions from electrostatic, van der Waals, steric, and polymer bridging interactions were evaluated. The ionic cross-linking in these films rendered them stable under all solution conditions studied although swelling at low pH and high ionic strength was inferred. The underlying polymer layer in the multilayered film was found to dictate the dominant surface forces when polymer migration and chain extension were facilitated. The precontact normal forces between a silica probe and an NCC-capped multilayer film were monotonically repulsive at pH values where the material surfaces were similarly and fully charged. In contrast, at pH 3.5, the anionic surfaces were weakly charged but the underlying layer of cationic PAH was fully charged and attractive forces dominated due to polymer bridging from extended PAH chains. The interaction with an anionic carboxylic acid probe showed similar behavior to the silica probe; however, for a cationic amine probe with an anionic NCC-capped film, electrostatic double-layer attraction at low pH, and electrostatic double-layer repulsion at high pH, were observed. Finally, the effect of the capping layer was studied with an anionic probe, which indicated that NCC-capped films exhibited purely repulsive forces which were larger in magnitude than the combination of electrostatic double-layer attraction and steric repulsion, measured for PAH-capped films. Wherever possible, DLVO theory was used to fit the measured surface forces and apparent surface potentials and surface charge densities were calculated.
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Affiliation(s)
- Emily D Cranston
- Department of Chemistry, McGill University, Montréal, QC, H3A 2A7 Canada.
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