1
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Wasilewska M, Michna A, Pomorska A, Wolski K, Zapotoczny S, Farkas E, Szittner Z, Szekacs I, Horvath R. Polysaccharide-based nano-engineered multilayers for controlled cellular adhesion in label-free biosensors. Int J Biol Macromol 2023; 247:125701. [PMID: 37429346 DOI: 10.1016/j.ijbiomac.2023.125701] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/22/2023] [Accepted: 07/03/2023] [Indexed: 07/12/2023]
Abstract
Controlling cellular adhesion is a critical step in the development of biomaterials, and in cell- based biosensing assays. Usually, the adhesivity of cells is tuned by an appropriate biocompatible layer. Here, synthetic poly(diallyldimethylammonium chloride) (PDADMAC), natural chitosan, and heparin (existing in an extracellular matrix) were selected to assembly PDADMAC/heparin and chitosan/heparin films. The physicochemical properties of macroion multilayers were determined by streaming potential measurements (SPM), quartz crystal microbalance (QCM-D), and optical waveguide lightmode spectroscopy (OWLS). The topography of the wet films was imaged using atomic force microscopy (AFM). The adhesion of preosteoblastic cell line MC3T3-E1 on those well-characterized polysaccharide-based multilayers was evaluated using a resonant waveguide grating (RWG) based optical biosensor and digital holographic microscopy. The latter method was engaged to investigate long-term cellular behavior on the fabricated multilayers. (PDADMAC/heparin) films were proved to be the most effective in inducing cellular adhesion. The cell attachment to chitosan/heparin-based multilayers was negligible. It was found that efficient adhesion of the cells occurs onto homogeneous and rigid multilayers (PDADMAC/heparin), whereas the macroion films forming "sponge-like" structures (chitosan/heparin) are less effective, and could be employed when reduced adhesion is needed. Polysaccharide-based multilayers can be considered versatile systems for medical applications. One can postulate that the presented results are relevant not only for modeling studies but also for applied research.
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Affiliation(s)
- Monika Wasilewska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239 Krakow, Poland.
| | - Aneta Michna
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239 Krakow, Poland.
| | - Agata Pomorska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, PL-30239 Krakow, Poland.
| | - Karol Wolski
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Szczepan Zapotoczny
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Enikő Farkas
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, 1121 Budapest, Hungary.
| | - Zoltan Szittner
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, 1121 Budapest, Hungary.
| | - Inna Szekacs
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, 1121 Budapest, Hungary.
| | - Robert Horvath
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, Centre for Energy Research, 1121 Budapest, Hungary.
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2
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Lopes M, Torrado M, Barth D, Santos SD, Sever-Bahcekapili M, Tekinay AB, Guler MO, Cleymand F, Pêgo AP, Borges J, Mano JF. Supramolecular presentation of bioinstructive peptides on soft multilayered nanobiomaterials stimulates neurite outgrowth. Biomater Sci 2023. [PMID: 37334774 DOI: 10.1039/d3bm00438d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Peptide amphiphiles (PAs) have emerged as effective molecular building blocks for creating self-assembling nanobiomaterials for multiple biomedical applications. Herein, we report a straightforward approach to assemble soft bioinstructive platforms to recreate the native neural extracellular matrix (ECM) aiming for neuronal regeneration based on the electrostatic-driven supramolecular presentation of laminin-derived IKVAV-containing self-assembling PA (IKVAV-PA) on biocompatible multilayered nanoassemblies. Spectroscopic and microscopic techniques show that the co-assembly of positively charged low-molecular-weight IKVAV-PA with oppositely charged high-molecular-weight hyaluronic acid (HA) triggers the formation of ordered β-sheet structures denoting a one-dimensional nanofibrous network. The successful functionalization of poly(L-lysine)/HA layer-by-layer nanofilms with an outer positively charged layer of self-assembling IKVAV-PA is demonstrated by the quartz crystal microbalance with dissipation monitoring and the nanofibrous morphological properties revealed by atomic force microscopy. The bioactive ECM-mimetic supramolecular nanofilms promote the enhancement of primary neuronal cells' adhesion, viability, and morphology when compared to the PA without the IKVAV sequence and PA-free biopolymeric multilayered nanofilms, and stimulate neurite outgrowth. The nanofilms hold great promise as bioinstructive platforms for enabling the assembly of customized and robust multicomponent supramolecular biomaterials for neural tissue regeneration.
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Affiliation(s)
- Maria Lopes
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Marília Torrado
- INEB - Instituto de Engenharia Biomédica & i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Daryl Barth
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
- Institut Jean Lamour, UMR 7198 CNRS - Université de Lorraine, Parc de Saurupt CS 50840, 54011 Nancy Cedex, France
| | - Sofia D Santos
- INEB - Instituto de Engenharia Biomédica & i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - Melike Sever-Bahcekapili
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, 06800 Ankara, Turkey
- Institute of Neurological Sciences and Psychiatry, Hacettepe University, 06230 Ankara, Turkey
| | - Ayse B Tekinay
- Institute of Materials Science and Nanotechnology, National Nanotechnology Research Center (UNAM), Bilkent University, 06800 Ankara, Turkey
| | - Mustafa O Guler
- The Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA
| | - Franck Cleymand
- Institut Jean Lamour, UMR 7198 CNRS - Université de Lorraine, Parc de Saurupt CS 50840, 54011 Nancy Cedex, France
| | - Ana P Pêgo
- INEB - Instituto de Engenharia Biomédica & i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - João Borges
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - João F Mano
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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3
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Kindi H, Willems C, Zhao M, Menzel M, Schmelzer CEH, Herzberg M, Fuhrmann B, Gallego-Ferrer G, Groth T. Metal Ion Doping of Alginate-Based Surface Coatings Induces Adipogenesis of Stem Cells. ACS Biomater Sci Eng 2022; 8:4327-4340. [PMID: 36174215 DOI: 10.1021/acsbiomaterials.2c00444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Metal ions are important effectors of protein and cell functions. Here, polyelectrolyte multilayers (PEMs) made of chitosan (Chi) and alginate (Alg) were doped with different metal ions (Ca2+, Co2+, Cu2+, and Fe3+), which can form bonds with their functional groups. Ca2+ and Fe3+ ions can be deposited in PEM at higher quantities resulting in more positive ζ potentials and also higher water contact angles in the case of Fe3+. An interesting finding was that the exposure of PEM to metal ions decreases the elastic modulus of PEM. Fourier transformed infrared (FTIR) spectroscopy of multilayers provides evidence of interaction of metal ions with the carboxylic groups of Alg but not for hydroxyl and amino groups. The observed changes in wetting and surface potential are partly related to the increased adhesion and proliferation of multipotent C3H10T1/2 fibroblasts in contrast to plain nonadhesive [Chi/Alg] multilayers. Specifically, PEMs doped with Cu2+ and Fe3+ ions greatly promote cell attachment and adipogenic differentiation, which indicates that changes in not only surface properties but also the bioactivity of metal ions play an important role. In conclusion, metal ion-doped multilayer coatings made of alginate and chitosan can promote the differentiation of multipotent cells on implants without the use of other morphogens like growth factors.
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Affiliation(s)
- Husnia Kindi
- Institute of Pharmacy, Department Biomedical Materials, Martin Luther University Halle-Wittenberg, Heinrich-Damerow Strasse 4, 06120 Halle (Saale), Germany
| | - Christian Willems
- Institute of Pharmacy, Department Biomedical Materials, Martin Luther University Halle-Wittenberg, Heinrich-Damerow Strasse 4, 06120 Halle (Saale), Germany
| | - Mingyan Zhao
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524003, China
| | - Matthias Menzel
- Department of Biological and Macromolecular Materials, Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Walter-Hülse-Strasse 1, 06120 Halle (Saale), Germany
| | - Christian E H Schmelzer
- Department of Biological and Macromolecular Materials, Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Walter-Hülse-Strasse 1, 06120 Halle (Saale), Germany
| | - Martin Herzberg
- Molecular Microbiology, Institute for Biology/Microbiology, Martin-Luther-University, Halle- Wittenberg, Kurt-Mothes-Strasse 3, 06120 Halle (Saale), Germany
| | - Bodo Fuhrmann
- Institute of Physics, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120 Halle (Saale), Germany.,Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120 Halle (Saale), Germany
| | - Gloria Gallego-Ferrer
- Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.,Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 46022 Valencia, Spain
| | - Thomas Groth
- Institute of Pharmacy, Department Biomedical Materials, Martin Luther University Halle-Wittenberg, Heinrich-Damerow Strasse 4, 06120 Halle (Saale), Germany.,Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120 Halle (Saale), Germany
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4
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The effect of polyacid on the physical and biological properties of chitosan based layer-by-layer films. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126313] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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5
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Cavallaro G, Micciulla S, Chiappisi L, Lazzara G. Chitosan-based smart hybrid materials: a physico-chemical perspective. J Mater Chem B 2021; 9:594-611. [PMID: 33305783 DOI: 10.1039/d0tb01865a] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Chitosan is one of the most studied cationic polysaccharides. Due to its unique characteristics of being water soluble, biocompatible, biodegradable, and non-toxic, this macromolecule is highly attractive for a broad range of applications. In addition, its complex behavior and the number of ways it interacts with different components in a system result in an astonishing variety of chitosan-based materials. Herein, we present recent advances in the field of chitosan-based materials from a physico-chemical perspective, with focus on aqueous mixtures with oppositely charged colloids, chitosan-based thin films, and nanocomposite systems. In this review, we focus our attention on the physico-chemical properties of chitosan-based materials, including solubility, mechanical resistance, barrier properties, and thermal behaviour, and provide a link to the chemical peculiarities of chitosan, such as its intrinsic low solubility, high rigidity, large charge separation, and strong tendency to form intra- and inter-molecular hydrogen bonds.
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Affiliation(s)
- Giuseppe Cavallaro
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze pad 17, 90128 Palermo, Italy.
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6
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Sun R, Zhu J, Wu H, Wang S, Li W, Sun Q. Modulating layer-by-layer assembled sodium alginate-chitosan film properties through incorporation of cellulose nanocrystals with different surface charge densities. Int J Biol Macromol 2021; 180:510-522. [PMID: 33745975 DOI: 10.1016/j.ijbiomac.2021.03.092] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/12/2021] [Accepted: 03/16/2021] [Indexed: 01/10/2023]
Abstract
In this work, 2,2,6,6-tetramethylpiperidine-1-oxyl-oxidized cellulose nanocrystals (TOCNs) were loaded into sodium alginate/chitosan multilayer film as nanofillers to investigate the modulation of the surface charge density of TOCNs on the film properties. First, the surface charge density of TOCNs was controlled by adjusting the carboxyl content and morphological size by varying the oxidant dosage. After oxidation, TOCN with higher surface charge density was observed to display a higher crystallinity, a more open internal structure, a better dispersibility and a slightly weaker thermal stability. In addition, a 15-layer film composed of sodium alginate and chitosan, called (SA/CH)15, was constructed by layer-by-layer assembly. Both in situ deposition monitoring and free-standing multilayer film formation indicated that TOCNs relied on strong electrostatic interactions and hydrogen bonding to achieve a compact and uniform interlayer and a thinner thickness of (SA/CH)15, which was more evident at a high surface charge density. The addition of TOCNs also enhanced the mechanical properties, thermal stability, hydrophobicity, and barrier properties of (SA/CH)15. In particular, the resulting sodium alginate/chitosan multilayer film exhibited an improved packaging performance when nanocomposite was performed using TOCN with a surface charge density of 3.22 ± 0.11 e nm-2.
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Affiliation(s)
- Ruonan Sun
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China
| | - Junxiang Zhu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China
| | - Hao Wu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China; Qingdao Special Food Research Institute, Qingdao 266109, People's Republic of China.
| | - Shiqing Wang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China
| | - Wenxiang Li
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China
| | - Qingjie Sun
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, Shandong, People's Republic of China
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7
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Yılmaz Aykut D, Yolaçan Ö, Deligöz H. pH stimuli drug loading/release platforms from LbL single/blend films: QCM-D and in-vitro studies. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Huang J, Zajforoushan Moghaddam S, Maroni P, Thormann E. Swelling Behavior, Interaction, and Electrostatic Properties of Chitosan/Alginate Dialdehyde Multilayer Films with Different Outermost Layer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3782-3791. [PMID: 32212609 DOI: 10.1021/acs.langmuir.0c00330] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, self-cross-linked chitosan/alginate dialdehyde multilayer films, capped with either alginate dialdehyde (6 layers) or chitosan (7 layers), were fabricated using the layer-by-layer method. The disruption of the electrostatic equilibrium when exposing the fabricated layers to acidic and alkaline conditions causes swelling within the film and independently in the outermost layer, showing dependence on the ionic strength. Spectroscopic ellipsometry and quartz crystal microbalance with dissipation monitoring were employed to examine the swelling behavior. Atomic force microscopy colloidal probe measurements were conducted to assess the surface forces between the multilayer films at different pH and ionic strengths. Finally, the electrostatic properties of the multilayer films were examined at different pH and ionic strengths using zeta potential measurements. The results suggest that stimuli-responsiveness and overall swelling behavior of the polysaccharide multilayer films significantly depend on the outermost layer, an effect that should expectedly become more pronounced the thinner the film becomes.
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Affiliation(s)
- Junhao Huang
- Department of Chemistry, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | | | - Plinio Maroni
- Department of Inorganic and Analytical Chemistry, University of Geneva, Sciences II, 30 Quai Ernest-Ansermet, 1205 Geneva, Switzerland
| | - Esben Thormann
- Department of Chemistry, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
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9
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Nguyen TTT, Belbekhouche S, Auvergne R, Carbonnier B, Grande D. Controlled allylation of polyelectrolytes: a deep insight into chemical aspects and their applicability as building blocks for robust multilayer coatings. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2018-1104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Abstract
Polyelectrolytes (PEs) bearing easily derivatizable functions for possible post-modification under mild conditions can find a broad range of applications in various fields. The present paper describes the successful controlled side-chain allylation of two types of PEs: polyamine-based polycations, i.e. poly(allylamine hydrochloride) (PAH) and branched polyethyleneimine (PEI), and strong polyanions, i.e. poly(sodium vinyl sulfonate) (PVS) and poly(sodium 4-styrene sulfonate) (PSS). PSS has been largely investigated in the literature, while PVS is much less commonly explored. The allylation of each type presents its own drawback, i.e. heterogeneous reaction in the case of strong polyanions and instability of partially protonated allylated polyamine products. Nevertheless, all encountered difficulties could be solved and thoroughly elucidated by different experimental tests. This partial allyl-functionalization does not affect the electrolytic properties of the newly allylated PEs, as evidenced by the effective construction of two series of polyelectrolyte multilayer (PEM) films, namely PEI-ene (PSS-ene/PAH-ene)4 and PEI-ene (PVS-ene/PAH-ene)4, the latter being one of the rare examples developed in the literature. The presence of allyl groups on the PE side-chains allows for the stabilization of the resulting PEM films via thiol-ene photo-crosslinking in the presence of a water-soluble dithiol crosslinker. In order to fix permanently the resulting crosslinked PEM films on substrates, the covalent crosslinking occurs not only between different C=C bonds on PE layers but also with those present on substrates preliminarily functionalized with allyl groups via sulfur–gold chemistry. The robustness of both resulting crosslinked PEM films under strongly basic solution (pH 14) is validated by Quartz Crystal Microbalance (QCM) measurements. The versatility and effectiveness of the present approach is expected to find potential applications in different scientific and technological fields.
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Affiliation(s)
- Thi-Thanh-Tam Nguyen
- Institut de Chimie et des Matériaux Paris-Est, UMR 7182 CNRS-Université Paris-Est Créteil Val-de-Marne , 2 rue Henri Dunant , 94320 Thiais , France
| | - Sabrina Belbekhouche
- Institut de Chimie et des Matériaux Paris-Est, UMR 7182 CNRS-Université Paris-Est Créteil Val-de-Marne , 2 rue Henri Dunant , 94320 Thiais , France
| | - Rémi Auvergne
- ICGM, UMR 5253 – CNRS, Université de Montpellier, ENSCM , 240 Avenue Emile Jeanbrau , 34296 Montpellier , France
| | - Benjamin Carbonnier
- Institut de Chimie et des Matériaux Paris-Est, UMR 7182 CNRS-Université Paris-Est Créteil Val-de-Marne , 2 rue Henri Dunant , 94320 Thiais , France
| | - Daniel Grande
- Institut de Chimie et des Matériaux Paris-Est, UMR 7182 CNRS-Université Paris-Est Créteil Val-de-Marne , 2 rue Henri Dunant , 94320 Thiais , France
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10
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Huang J, Zajforoushan Moghaddam S, Thormann E. Structural Investigation of a Self-Cross-Linked Chitosan/Alginate Dialdehyde Multilayered Film with in Situ QCM-D and Spectroscopic Ellipsometry. ACS OMEGA 2019; 4:2019-2029. [PMID: 31459453 PMCID: PMC6648685 DOI: 10.1021/acsomega.8b03145] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 01/10/2019] [Indexed: 05/30/2023]
Abstract
A chitosan/alginate dialdehyde multilayered film was fabricated using the layer-by-layer assembly method. Besides electrostatic interaction that promotes alternate adsorption of the oppositely charged polyelectrolytes, the Schiff base reaction between the amine groups on chitosan and the aldehyde groups on alginate dialdehyde provides a covalently cross-linked film, which after reduction by sodium cyanoborohydride is stable under both acidic and alkaline conditions. Moreover, the cross-linked film is responsive to changes in pH and addition of multivalent salts. The structural properties of the multilayered film such as thickness, refractive index, and water content were examined using simultaneous quartz crystal microbalance with dissipation monitoring and spectroscopic ellipsometry.
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Affiliation(s)
- Junhao Huang
- Department of Chemistry, Technical University of Denmark, Kemitorvet 206, 2800 Kgs. Lyngby, Denmark
| | | | - Esben Thormann
- Department of Chemistry, Technical University of Denmark, Kemitorvet 206, 2800 Kgs. Lyngby, Denmark
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11
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Polysaccharide-based superhydrophilic coatings with antibacterial and anti-inflammatory agent-delivering capabilities for ophthalmic applications. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.07.049] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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12
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Abstract
Poly(L-lactic acid) (PLA) is a biodegradable fiber, and a promising material for use in biomedical applications. However, its hydrophobicity, low hydrolyzability, and poor cell adhesion can be problematic in some cases; consequently, the development of improved PLA-based materials is required. In this study, chitosan-coated (CS-coated) PLA was prepared by plasma treatment and the layer-by-layer (LBL) method. Plasma treatment prior to CS coating effectively hydrophilized and activated the PLA surface. The LBL method was used to increase the number of CS and sodium alginate (SA) coating layers by electrostatically superposing alternating anionic and cationic polymers. The prepared fibers were characterized by tensile testing, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), nitrogen analysis and degradation testing, which revealed that the 100 W plasma treatment for 60 s was optimum, and that plasma treatment and the LBL method effectively coated CS onto the PLA fibers. The existence or not of a coating on the PLA fiber did not appear to influence the degradation of the fiber, which is ascribable to the extremely thin coating, as evidenced by nitrogen analysis and SEM. The CS-coated PLA fibers were prepared without damaging the PLA surface and can be used in biomaterial applications such as suture threads.
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13
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Park S, Choi D, Jeong H, Heo J, Hong J. Drug Loading and Release Behavior Depending on the Induced Porosity of Chitosan/Cellulose Multilayer Nanofilms. Mol Pharm 2017; 14:3322-3330. [DOI: 10.1021/acs.molpharmaceut.7b00371] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sohyeon Park
- School of Chemical Engineering
and Material Science, Chung-Ang University, 84 Heukseok-ro,
Dongjak-gu, Seoul 06974, Republic of Korea
| | - Daheui Choi
- School of Chemical Engineering
and Material Science, Chung-Ang University, 84 Heukseok-ro,
Dongjak-gu, Seoul 06974, Republic of Korea
| | - Hyejoong Jeong
- School of Chemical Engineering
and Material Science, Chung-Ang University, 84 Heukseok-ro,
Dongjak-gu, Seoul 06974, Republic of Korea
| | - Jiwoong Heo
- School of Chemical Engineering
and Material Science, Chung-Ang University, 84 Heukseok-ro,
Dongjak-gu, Seoul 06974, Republic of Korea
| | - Jinkee Hong
- School of Chemical Engineering
and Material Science, Chung-Ang University, 84 Heukseok-ro,
Dongjak-gu, Seoul 06974, Republic of Korea
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14
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Kaygusuz H, Micciulla S, Erim FB, von Klitzing R. Effect of anionic surfactant on alginate-chitosan polyelectrolyte multilayer thickness. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/polb.24429] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hakan Kaygusuz
- Department of Chemistry; Istanbul Technical University; Maslak Istanbul 34469 Turkey
- Stranski-Laboratorium; Department of Chemistry, Technische Universität Berlin, Strasse des 17.Juni 124; Berlin 10623 Germany
| | - Samantha Micciulla
- Stranski-Laboratorium; Department of Chemistry, Technische Universität Berlin, Strasse des 17.Juni 124; Berlin 10623 Germany
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1 OT Golm; Potsdam 14476 Germany
| | - F. Bedia Erim
- Department of Chemistry; Istanbul Technical University; Maslak Istanbul 34469 Turkey
| | - Regine von Klitzing
- Department of Physics; Soft Matter at Interfaces, Technische Universität Darmstadt, Alarich-Weiss-Strasse 10; Darmstadt 64287 Germany
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15
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Theansun W, Sripratumporn J, Promptmas C. Determination of Albumin in Urine by a Quartz Crystal Microbalance Label-Free Assay. ANAL LETT 2017. [DOI: 10.1080/00032719.2016.1262393] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Watcharinthon Theansun
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
- Faculty of Allied Health Sciences, Naresuan University, Phitsanulok, Thailand
| | - Jittawat Sripratumporn
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
| | - Chamras Promptmas
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom, Thailand
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16
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Silva JM, García JR, Reis RL, García AJ, Mano JF. Tuning cell adhesive properties via layer-by-layer assembly of chitosan and alginate. Acta Biomater 2017; 51:279-293. [PMID: 28126597 PMCID: PMC5665021 DOI: 10.1016/j.actbio.2017.01.058] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 01/19/2017] [Accepted: 01/20/2017] [Indexed: 12/25/2022]
Abstract
Understanding the mechanisms controlling cell-multilayer film interactions is crucial to the successful engineering of these coatings for biotechnological and biomedical applications. Herein, we present a strategy to tune the cell adhesive properties of multilayers based on marine polysaccharides with and without cross-linking and/or coating with extracellular matrix proteins. Chemical cross-linking of multilayers improved mechanical properties of the coatings but also elicited changes in surface chemistry that alter the adhesion of human umbilical vein endothelial cells. We evaluated a strategy to decouple the mechanical and chemical properties of these films, enabling the transition from cell-adhesive to cell-resistant multilayers. Addition of chitosan/alginate multilayers on top of cross-linked films decreased endothelial cell adhesion, spreading, and proliferation to similar levels as uncross-linked films. Our findings highlight the key role of surface chemistry in cell-multilayer film interactions, and these engineered nanocoatings represent a tunable model of cell adhesive and non-adhesive multilayered films. STATEMENT OF SIGNIFICANCE Multilayered films based on marine-derived polysaccharides were obtained by layer-by-layer (LbL). Biological tests with human umbilical vein endothelial cells (HUVECs) showed the potential of these films to tailor cell adhesion, spreading and proliferation. These multilayered films promise to be versatile and tunable model of cell adhesive and non-adhesive films.
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Affiliation(s)
- Joana M Silva
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal; ICVS/3B's - PT Government Associate Laboratory, 4710-243 Braga/Guimarães, Portugal
| | - José R García
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA; Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Rui L Reis
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal; ICVS/3B's - PT Government Associate Laboratory, 4710-243 Braga/Guimarães, Portugal
| | - Andrés J García
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA 30332, USA; Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - João F Mano
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal; ICVS/3B's - PT Government Associate Laboratory, 4710-243 Braga/Guimarães, Portugal.
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Silva JM, Custódio CA, Reis RL, Mano JF. Multilayered Hollow Tubes as Blood Vessel Substitutes. ACS Biomater Sci Eng 2016; 2:2304-2314. [PMID: 33465879 DOI: 10.1021/acsbiomaterials.6b00499] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The available therapies for cardiovascular pathologies often require the replacement of diseased vascular grafts. However, the current blood vessel substitutes are unsuitable for small-diameter blood vessel replacements. Herein, we propose the creation of multilayered hollow tubes as blood vessel substitutes. Hollow tubes were obtained by building-up multilayers of marine-derived polysaccharides (i.e., chitosan and alginate) on sacrificial tubular templates using layer-by-layer technology and template leaching. A cross-linking degree of ≈59% was achieved using genipin, which is reflected in an increase of the mechanical properties and a decrease of the water uptake. To further improve the cell adhesive properties of the multilayers, fibronectin (FN) was immobilized on the surface of the hollow tubes. The in vitro biological performance of human umbilical vein endothelial cells (HUVECs) and human aortic smooth muscle cells (HASMCs) was assessed. In addition, to perform the culture of HUVECs on the inner side and the HASMCs on the outer side of the tubes, an in-house developed apparatus was created that allowed us to feed cells with their respective culture medium. The developed hollow tubes were shown to be a suitable structure to promote cell adhesion, spreading, and proliferation. It is our belief that the creation of these functional structures will open a new research field in order to develop innovative multilayered tubular structures for cardiovascular TE applications.
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Affiliation(s)
- Joana M Silva
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal.,ICVS/3B's - PT Government Associate Laboratory, 4710-243 Braga/Guimarães, Portugal
| | - Catarina A Custódio
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal.,ICVS/3B's - PT Government Associate Laboratory, 4710-243 Braga/Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal.,ICVS/3B's - PT Government Associate Laboratory, 4710-243 Braga/Guimarães, Portugal
| | - João F Mano
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal.,ICVS/3B's - PT Government Associate Laboratory, 4710-243 Braga/Guimarães, Portugal
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18
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Silva JM, Reis RL, Mano JF. Biomimetic Extracellular Environment Based on Natural Origin Polyelectrolyte Multilayers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:4308-42. [PMID: 27435905 DOI: 10.1002/smll.201601355] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/15/2016] [Indexed: 05/23/2023]
Abstract
Surface modification of biomaterials is a well-known approach to enable an adequate biointerface between the implant and the surrounding tissue, dictating the initial acceptance or rejection of the implantable device. Since its discovery in early 1990s layer-by-layer (LbL) approaches have become a popular and attractive technique to functionalize the biomaterials surface and also engineering various types of objects such as capsules, hollow tubes, and freestanding membranes in a controllable and versatile manner. Such versatility enables the incorporation of different nanostructured building blocks, including natural biopolymers, which appear as promising biomimetic multilayered systems due to their similarity to human tissues. In this review, the potential of natural origin polymer-based multilayers is highlighted in hopes of a better understanding of the mechanisms behind its use as building blocks of LbL assembly. A deep overview on the recent progresses achieved in the design, fabrication, and applications of natural origin multilayered films is provided. Such films may lead to novel biomimetic approaches for various biomedical applications, such as tissue engineering, regenerative medicine, implantable devices, cell-based biosensors, diagnostic systems, and basic cell biology.
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Affiliation(s)
- Joana M Silva
- 3Bs Research Group-Biomaterials Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's - PT Government Associate Laboratory Braga/Guimarães, Portugal
| | - Rui L Reis
- 3Bs Research Group-Biomaterials Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's - PT Government Associate Laboratory Braga/Guimarães, Portugal
| | - João F Mano
- 3Bs Research Group-Biomaterials Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark - Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal
- ICVS/3B's - PT Government Associate Laboratory Braga/Guimarães, Portugal
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19
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Cardoso MJ, Caridade SG, Costa RR, Mano JF. Enzymatic Degradation of Polysaccharide-Based Layer-by-Layer Structures. Biomacromolecules 2016; 17:1347-57. [PMID: 26957012 DOI: 10.1021/acs.biomac.5b01742] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The lack of knowledge on the degradation of layer-by-layer structures is one of the causes hindering its translation to preclinical assays. The enzymatic degradation of chitosan/hyaluronic acid films in the form of ultrathin films, freestanding membranes, and microcapsules was studied resorting to hyaluronidase. The reduction of the thickness of ultrathin films was dependent on the hyaluronidase concentration, leading to thickness and topography variations. Freestanding membranes exhibited accelerated weight loss up to 120 h in the presence of the enzyme, achieving complete degradation. Microcapsules with around 5 μm loaded simultaneously with FITC-BSA and hyaluronidase showed that the coencapsulation of such enzyme and protein mixture led to a FITC-BSA release four times higher than in the absence of hyaluronidase. The results suggest that the degradation of LbL devices may be tuned via embedded enzymes, namely, in the controlled release of active agents in biomedical applications.
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Affiliation(s)
- Matias J Cardoso
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho , Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal.,ICVS/3B's, PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - Sofia G Caridade
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho , Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal.,ICVS/3B's, PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - Rui R Costa
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho , Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal.,ICVS/3B's, PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - João F Mano
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho , Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal.,ICVS/3B's, PT Government Associated Laboratory, Braga/Guimarães, Portugal
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20
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Rego SJ, Vale AC, Luz GM, Mano JF, Alves NM. Adhesive Bioactive Coatings Inspired by Sea Life. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:560-568. [PMID: 26653103 DOI: 10.1021/acs.langmuir.5b03508] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Inspired by nature, in particular by the marine mussels adhesive proteins (MAPs) and by the tough brick-and-mortar nacre-like structure, novel multilayered films are prepared in the present work. Organic-inorganic multilayered films, with an architecture similar to nacre based on bioactive glass nanoparticles (BG), chitosan, and hyaluronic acid modified with catechol groups, which are the main components responsible for the outstanding adhesion in MAPs, are developed for the first time. The biomimetic conjugate is prepared by carbodiimide chemistry and analyzed by ultraviolet-visible spectrophotometry. The buildup of the multilayered films is monitored with a quartz crystal microbalance with dissipation monitoring, and their topography is characterized by atomic force microscopy. The mechanical properties reveal that the films containing catechol groups and BG present an enhanced adhesion. Moreover, the bioactivity of the films upon immersion in a simulated body fluid solution is evaluated by scanning electron microscopy coupled with energy dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and X-ray diffraction. It was found that the constructed films promote the formation of bonelike apatite in vitro. Such multifunctional mussel inspired LbL films, which combine enhanced adhesion and bioactivity, could be potentially used as coatings of a variety of implants for orthopedic applications.
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Affiliation(s)
- Sónia J Rego
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine , AvePark, 4805-017 Barco GMR, Portugal
- ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ana C Vale
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine , AvePark, 4805-017 Barco GMR, Portugal
- ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Gisela M Luz
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine , AvePark, 4805-017 Barco GMR, Portugal
- ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - João F Mano
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine , AvePark, 4805-017 Barco GMR, Portugal
- ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Natália M Alves
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine , AvePark, 4805-017 Barco GMR, Portugal
- ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
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21
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Moura D, Caridade SG, Sousa MP, Cunha E, Rocha HC, Mano JF, Paiva MC, Alves NM. High performance free-standing films by layer-by-layer assembly of graphene flakes and ribbons with natural polymers. J Mater Chem B 2016; 4:7718-7730. [DOI: 10.1039/c6tb02344d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, novel free-standing (FS) films based on chitosan, alginate and graphene oxide (GO) were developed through layer-by-layer assembly.
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Affiliation(s)
- D. Moura
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Guimarães
| | - S. G. Caridade
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Guimarães
| | - M. P. Sousa
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Guimarães
| | - E. Cunha
- Institute for Polymers and Composites/I3N
- Department of Polymer Engineering
- University of Minho
- 4800-058 Guimarães
- Portugal
| | - H. C. Rocha
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Guimarães
| | - J. F. Mano
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Guimarães
| | - M. C. Paiva
- Institute for Polymers and Composites/I3N
- Department of Polymer Engineering
- University of Minho
- 4800-058 Guimarães
- Portugal
| | - N. M. Alves
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- Guimarães
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22
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23
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Silva JM, Caridade SG, Costa RR, Alves NM, Groth T, Picart C, Reis RL, Mano JF. pH Responsiveness of Multilayered Films and Membranes Made of Polysaccharides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:11318-28. [PMID: 26421873 PMCID: PMC5015704 DOI: 10.1021/acs.langmuir.5b02478] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We investigated the pH-dependent properties of multilayered films made of chitosan (CHI) and alginate (ALG) and focused on their postassembly response to different pH environments using a quartz crystal microbalance with dissipation monitoring (QCM-D), swelling studies, ζ potential measurements, and dynamic mechanical analysis (DMA). In an acidic environment, the multilayers presented lower dissipation values and, consequently, higher moduli when compared with the values obtained for the pH used during the assembly (5.5). When the multilayers were exposed to alkaline environments, the opposite behavior occurred. These results were further corroborated by the ability of this multilayered system to exhibit a reversible swelling-deswelling behavior within the pH range from 3 to 9. The changes in the physicochemical properties of the multilayer system were gradual and different from those of individual solubilized polyelectrolytes. This behavior is related to electrostatic interactions between the ionizable groups combined with hydrogen bonding and hydrophobic interactions. Beyond the pH range of 3-9, the multilayers were stabilized by genipin cross-linking. The multilayered films also became more rigid while the pH responsiveness conferred by the ionizable moieties of the polyelectrolytes was preserved. This work demonstrates the versatility and feasibility of LbL methodology to generate inherently pH stimulus-responsive nanostructured films. Surface functionalization using pH responsiveness endows several biomedical applications with abilities such as drug delivery, diagnostics, microfluidics, biosensing, and biomimetic implantable membranes.
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Affiliation(s)
- Joana M. Silva
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark – Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Sofia G. Caridade
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark – Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui R. Costa
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark – Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Natália M. Alves
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark – Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Thomas Groth
- Biomedical Materials Group, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120 Halle (Saale), Saxony-Anhalt, Germany
| | - Catherine Picart
- CNRS, UMR 5628, LMGP, F-38016, Grenoble
- University Grenoble Alpes, Institut National Polytechnique de Grenoble, F-38016 Grenoble, France
| | - Rui L. Reis
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark – Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - João F. Mano
- 3B’s Research Group – Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine, Avepark – Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco GMR, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Oliveira SM, Reis RL, Mano JF. Towards the design of 3D multiscale instructive tissue engineering constructs: Current approaches and trends. Biotechnol Adv 2015; 33:842-55. [PMID: 26025038 DOI: 10.1016/j.biotechadv.2015.05.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 05/21/2015] [Accepted: 05/23/2015] [Indexed: 01/03/2023]
Abstract
The design of 3D constructs with adequate properties to instruct and guide cells both in vitro and in vivo is one of the major focuses of tissue engineering. Successful tissue regeneration depends on the favorable crosstalk between the supporting structure, the cells and the host tissue so that a balanced matrix production and degradation are achieved. Herein, the major occurring events and players in normal and regenerative tissue are overviewed. These have been inspiring the selection or synthesis of instructive cues to include into the 3D constructs. We further highlight the importance of a multiscale perception of the range of features that can be included on the biomimetic structures. Lastly, we focus on the current and developing tissue-engineering approaches for the preparation of such 3D constructs: top-down, bottom-up and integrative. Bottom-up and integrative approaches present a higher potential for the design of tissue engineering devices with multiscale features and higher biochemical control than top-down strategies, and are the main focus of this review.
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Affiliation(s)
- Sara M Oliveira
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Dept. of Polymer Engineering, University of Minho, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco- Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017 Barco-Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Dept. of Polymer Engineering, University of Minho, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco- Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017 Barco-Guimarães, Portugal
| | - João F Mano
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Dept. of Polymer Engineering, University of Minho, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco- Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017 Barco-Guimarães, Portugal.
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25
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Gomes AP, Mano JF, Queiroz JA, Gouveia IC. Incorporation of antimicrobial peptides on functionalized cotton gauzes for medical applications. Carbohydr Polym 2015; 127:451-61. [PMID: 25965504 DOI: 10.1016/j.carbpol.2015.03.089] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 03/25/2015] [Accepted: 03/31/2015] [Indexed: 01/09/2023]
Abstract
A large group of low molecular weight natural compounds that exhibit antimicrobial activity has been isolated from animals and plants during the past two decades. Among them, peptides are the most widespread resulting in a new generation of antimicrobial agents with higher specific activity. In the present study we have developed a new strategy to obtain antimicrobial wound-dressings based on the incorporation of antimicrobial peptides into polyelectrolyte multilayer films built by the alternate deposition of polycation (chitosan) and polyanion (alginic acid sodium salt) over cotton gauzes. Energy dispersive X ray microanalysis technique was used to determine if antimicrobial peptides penetrated within the films. FTIR analysis was performed to assess the chemical linkages, and antimicrobial assays were performed with two strains: Staphylococcus aureus (Gram-positive bacterium) and Klebsiella pneumonia (Gram-negative bacterium). Results showed that all antimicrobial peptides used in this work have provided a higher antimicrobial effect (in the range of 4 log-6 log reduction) for both microorganisms, in comparison with the controls, and are non-cytotoxic to normal human dermal fibroblasts at the concentrations tested.
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Affiliation(s)
- A P Gomes
- FibEnTech - Fiber Materials and Environmental Technologies - Research Unit, Faculty of Engineering, University of Beira Interior, 6201-001 Covilhã, Portugal
| | - J F Mano
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal; Health Sciences Research Centre, University of Beira Interior, 6201-001 Covilhã, Portugal
| | - J A Queiroz
- ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - I C Gouveia
- FibEnTech - Fiber Materials and Environmental Technologies - Research Unit, Faculty of Engineering, University of Beira Interior, 6201-001 Covilhã, Portugal.
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26
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Venault A, Ballad MRB, Liu YH, Aimar P, Chang Y. Hemocompatibility of PVDF/PS-b-PEGMA membranes prepared by LIPS process. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2014.12.024] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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27
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Borges J, Caridade SG, Silva JM, Mano JF. Unraveling the Effect of the Hydration Level on the Molecular Mobility of Nanolayered Polymeric Systems. Macromol Rapid Commun 2015; 36:405-12. [DOI: 10.1002/marc.201400568] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 12/05/2014] [Indexed: 12/20/2022]
Affiliation(s)
- João Borges
- 3B's Research Group - Biomaterials; Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; AvePark, Zona Industrial da Gandra, S. Cláudio do Barco 4806-909 Caldas das Taipas Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Sofia G. Caridade
- 3B's Research Group - Biomaterials; Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; AvePark, Zona Industrial da Gandra, S. Cláudio do Barco 4806-909 Caldas das Taipas Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Joana M. Silva
- 3B's Research Group - Biomaterials; Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; AvePark, Zona Industrial da Gandra, S. Cláudio do Barco 4806-909 Caldas das Taipas Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - João F. Mano
- 3B's Research Group - Biomaterials; Biodegradables and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; AvePark, Zona Industrial da Gandra, S. Cláudio do Barco 4806-909 Caldas das Taipas Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
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Qi B, Kujawa P, Toita S, Beaune G, Winnik FM. Phosphorylcholine-modified chitosan films as effective promoters of cell aggregation: correlation between the films properties and cellular response. Macromol Biosci 2015; 15:490-500. [PMID: 25641672 DOI: 10.1002/mabi.201400439] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 11/14/2014] [Indexed: 12/27/2022]
Abstract
This study describes chitosan-phosphorylcholine (CH-PC) films able to support the formation of cell aggregates (spheroids), which are important for tissue engineering and pharmacological studies. The surface topography, charge, thickness, and rheology of CH-PC thin films were characterized by AFM, zeta-potential measurements, SPR spectroscopy, and QCM-D measurements. The CH-PC films are highly hydrated gels, independently of the level of PC incorporation (15-40 mol-% PC/glucosamine units). QCM-D studies established that the amount of fibrinogen adsorbed on CH-PC films decreased with increasing PC content. CH-PC surfaces underwent a transition from moderately cell-adhesive (CH-PC15) to non-adhesive (CH-PC40). Optical micrographs of HUVEC and MCF-7 cell lines cultured on CH-PC surfaces showed that they form spheroids on CH-PC25 and CH-PC40 films.
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Affiliation(s)
- Baowen Qi
- Faculté de Pharmacie and Département de Chimie, Université de Montreal, CP 6128 Succursale Centre Ville, Montreal, QC H3C 3J7, Canada
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29
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Silva JM, Caridade SG, Oliveira NM, Reis RL, Mano JF. Chitosan–alginate multilayered films with gradients of physicochemical cues. J Mater Chem B 2015; 3:4555-4568. [DOI: 10.1039/c5tb00082c] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A new approach was used to create multilayered films with gradients of physicochemical properties. This approach shows promise for the development of other types of gradients, which will be useful to mimic extracellular architecture.
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Affiliation(s)
- Joana M. Silva
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine
- Avepark – Parque de Ciência e Tecnologia
| | - Sofia G. Caridade
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine
- Avepark – Parque de Ciência e Tecnologia
| | - Nuno M. Oliveira
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine
- Avepark – Parque de Ciência e Tecnologia
| | - Rui L. Reis
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine
- Avepark – Parque de Ciência e Tecnologia
| | - João F. Mano
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine
- Avepark – Parque de Ciência e Tecnologia
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30
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Gasperini L, Mano JF, Reis RL. Natural polymers for the microencapsulation of cells. J R Soc Interface 2014; 11:20140817. [PMID: 25232055 PMCID: PMC4191114 DOI: 10.1098/rsif.2014.0817] [Citation(s) in RCA: 355] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Accepted: 08/27/2014] [Indexed: 02/06/2023] Open
Abstract
The encapsulation of living mammalian cells within a semi-permeable hydrogel matrix is an attractive procedure for many biomedical and biotechnological applications, such as xenotransplantation, maintenance of stem cell phenotype and bioprinting of three-dimensional scaffolds for tissue engineering and regenerative medicine. In this review, we focus on naturally derived polymers that can form hydrogels under mild conditions and that are thus capable of entrapping cells within controlled volumes. Our emphasis will be on polysaccharides and proteins, including agarose, alginate, carrageenan, chitosan, gellan gum, hyaluronic acid, collagen, elastin, gelatin, fibrin and silk fibroin. We also discuss the technologies commonly employed to encapsulate cells in these hydrogels, with particular attention on microencapsulation.
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Affiliation(s)
- Luca Gasperini
- 3B's, Department of Polymer Engineering, University of Minho, 4806-909 Caldas das Taipas, Portugal ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - João F Mano
- 3B's, Department of Polymer Engineering, University of Minho, 4806-909 Caldas das Taipas, Portugal ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui L Reis
- 3B's, Department of Polymer Engineering, University of Minho, 4806-909 Caldas das Taipas, Portugal ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
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31
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Zhao M, Li L, Zhou C, Heyroth F, Fuhrmann B, Maeder K, Groth T. Improved stability and cell response by intrinsic cross-linking of multilayers from collagen I and oxidized glycosaminoglycans. Biomacromolecules 2014; 15:4272-80. [PMID: 25246006 DOI: 10.1021/bm501286f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Stability of surface coatings against environmental stress, such as pH, high ionic strength, mechanical forces, and so forth, is crucial for biomedical application of implants. Here, a novel extracellular-matrix-like polyelectrolyte multilayer (PEM) system composed of collagen I (Col I) and oxidized glycosaminoglycans (oGAGs) was stabilized by intrinsic cross-linking due to formation of imine bonds between aldehydes of oxidized chondroitin sulfate (oCS) or hyaluronan (oHA) and amino groups of Col I. It was also found that Col I contributed significantly more to overall mass in CS-Col I than in HA-Col I multilayer systems and fibrillized particularly in the presence of native and oxidized CS. Adhesion and proliferation studies with murine C3H10T1/2 embryonic fibroblasts demonstrated that covalent cross-linking of oGAG with Col I had no adverse effects on cell behavior. By contrast, it was found that cell size and polarization was more pronounced on oGAG-based multilayer systems, which corresponded also to the higher stiffness of cross-linked multilayers as observed by studies with quartz crystal microbalance (QCM). Overall, PEMs prepared from oGAG and Col I give rise to stable PEM constructs due to intrinsic cross-linking that may be useful for making bioactive coatings of implants and tissue engineering scaffolds.
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Affiliation(s)
- Mingyan Zhao
- Department of Materials Science and Engineering, Jinan University , Guangzhou 510630, China
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32
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Silva JM, Duarte ARC, Caridade SG, Picart C, Reis RL, Mano JF. Tailored freestanding multilayered membranes based on chitosan and alginate. Biomacromolecules 2014; 15:3817-26. [PMID: 25244323 DOI: 10.1021/bm501156v] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Engineering metabolically demanding tissues requires the supply of nutrients, oxygen, and removal of metabolic byproducts, as well as adequate mechanical properties. In this work, we propose the development of chitosan (CHIT)/alginate (ALG) freestanding membranes fabricated by layer-by-layer (LbL) assembly. CHIT/ALG membranes were cross-linked with genipin at a concentration of 1 mg·mL(-1) or 5 mg·mL(-1). Mass transport properties of glucose and oxygen were evaluated on the freestanding membranes. The diffusion of glucose and oxygen decreases with increasing cross-linking concentration. Mechanical properties were also evaluated in physiological-simulated conditions. Increasing cross-linking density leads to an increase of storage modulus, Young modulus, and ultimate tensile strength, but to a decrease in the maximum hydrostatic pressure. The in vitro biological performance demonstrates that cross-linked films are more favorable for cell adhesion. This work demonstrates the versatility and feasibility of LbL assembly to generate nanostructured constructs with tunable permeability, mechanical, and biological properties.
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Affiliation(s)
- Joana M Silva
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho , Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas/Guimarães, Portugal
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33
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Neto AI, Cibrão AC, Correia CR, Carvalho RR, Luz GM, Ferrer GG, Botelho G, Picart C, Alves NM, Mano JF. Nanostructured polymeric coatings based on chitosan and dopamine-modified hyaluronic acid for biomedical applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:2459-69. [PMID: 24616168 DOI: 10.1002/smll.201303568] [Citation(s) in RCA: 125] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 02/07/2014] [Indexed: 05/23/2023]
Abstract
In a marine environment, specific proteins are secreted by mussels and used as a bioglue to stick to a surface. These mussel proteins present an unusual amino acid 3,4-dihydroxyphenylalanine (known as DOPA). The outstanding adhesive properties of these materials in the sea harsh conditions have been attributed to the presence of the catechol groups present in DOPA. Inspired by the structure and composition of these adhesive proteins, dopamine-modified hyaluronic acid (HA-DN) prepared by carbodiimide chemistry is used to form thin and surface-adherent dopamine films. This conjugate was characterized by distinct techniques, such as nuclear magnetic resonance and ultraviolet spectrophotometry. Multilayer films are developed based on chitosan and HA-DN to form polymeric coatings using the layer-by-layer methodology. The nanostructured films formation is monitored by quartz crystal microbalance. The film surface is characterized by atomic force microscopy and scanning electron microscopy. Water contact angle measurements are also conducted. The adhesion properties are analyzed showing that the nanostructured films with dopamine promote an improved adhesion. In vitro tests show an enhanced cell adhesion, proliferation and viability for the biomimetic films with catechol groups, demonstrating their potential to be used in distinct biomedical applications.
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Affiliation(s)
- Ana I Neto
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, University of Minho, AvePark, 4806-90, Taipas, Guimarães, Portugal; ICVS/3B's PT Government Associate Laboratory, Braga/Guimarães, Portugal
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34
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Silva JM, Duarte ARC, Custódio CA, Sher P, Neto AI, Pinho ACM, Fonseca J, Reis RL, Mano JF. Nanostructured hollow tubes based on chitosan and alginate multilayers. Adv Healthc Mater 2014; 3:433-40. [PMID: 23983205 DOI: 10.1002/adhm.201300265] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 07/30/2013] [Indexed: 12/28/2022]
Abstract
The design and production of structures with nanometer-sized polymer films based on layer-by-layer (LbL) are of particular interest for tissue engineering since they allow the precise control of physical and biochemical cues of implantable devices. In this work, a method is developed for the preparation of nanostructured hollow multilayers tubes combining LbL and template leaching. The aim is to produce hollow tubes based on polyelectrolyte multilayer films with tuned physical-chemical properties and study their effects on cell behavior. The final tubular structures are characterized by differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), microscopy, swelling, and mechanical tests, including dynamic mechanical analysis (DMA) in physiological simulated conditions. It is found that more robust films could be produced upon chemical cross-linking with genipin. In particular, the mechanical properties confirms the viscoelastic properties and a storage and young modulus about two times higher. The water uptake decreases from about 390% to 110% after the cross-linking. The biological performance is assessed in terms of cell adhesion, viability, and proliferation. The results obtained with the cross-linked tubes demonstrate that these are more suitable structures for cell adhesion and spreading. The results suggest the potential of these structures to boost the development of innovative tubular structures for tissue engineering approaches.
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Affiliation(s)
- Joana M. Silva
- 3Bs Research Group-Biomaterials; Biodegradables, and Biomimetics; AvePark, Zona Industrial, da Gandra S. Claúdio do Barco 4806-909 Caldas das Taipas - Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Ana Rita C. Duarte
- 3Bs Research Group-Biomaterials; Biodegradables, and Biomimetics; AvePark, Zona Industrial, da Gandra S. Claúdio do Barco 4806-909 Caldas das Taipas - Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Catarina A. Custódio
- 3Bs Research Group-Biomaterials; Biodegradables, and Biomimetics; AvePark, Zona Industrial, da Gandra S. Claúdio do Barco 4806-909 Caldas das Taipas - Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Praveen Sher
- 3Bs Research Group-Biomaterials; Biodegradables, and Biomimetics; AvePark, Zona Industrial, da Gandra S. Claúdio do Barco 4806-909 Caldas das Taipas - Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - Ana I. Neto
- 3Bs Research Group-Biomaterials; Biodegradables, and Biomimetics; AvePark, Zona Industrial, da Gandra S. Claúdio do Barco 4806-909 Caldas das Taipas - Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - António C. M. Pinho
- University of Minho, Department of Mechanical Engineering; Campus de Azurém Guimarães Portugal
| | - Jaime Fonseca
- University of Minho, Department of Industrial Electronics; Campus de Azurém Guimarães Portugal
| | - Rui L. Reis
- 3Bs Research Group-Biomaterials; Biodegradables, and Biomimetics; AvePark, Zona Industrial, da Gandra S. Claúdio do Barco 4806-909 Caldas das Taipas - Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - João F. Mano
- 3Bs Research Group-Biomaterials; Biodegradables, and Biomimetics; AvePark, Zona Industrial, da Gandra S. Claúdio do Barco 4806-909 Caldas das Taipas - Guimarães Portugal
- ICVS/3B's - PT Government Associate Laboratory; Braga/Guimarães Portugal
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35
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Gomes AP, Mano JF, Queiroz JA, Gouveia IC. New biomaterial based on cotton with incorporated Biomolecules. J Appl Polym Sci 2014. [DOI: 10.1002/app.40519] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ana P. Gomes
- Optical Centre, University of Beira Interior; 6201-001 Covilhã Portugal
| | - João F. Mano
- 3B's Research Group-Biomaterials, Biodegradables, and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; AvePark 4806-909 Taipas Guimarães Portugal
- ICVS/3B's, PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - João A. Queiroz
- Health Sciences Research Centre, University of Beira Interior; 6201-001 Covilhã Portugal
| | - Isabel C. Gouveia
- R&D Unit of Textile and Paper Materials, Faculty of Engineering; University of Beira Interior; 6201-001 Covilhã Portugal
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36
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Delcroix MF, Demoustier-Champagne S, Dupont-Gillain CC. Quartz crystal microbalance study of ionic strength and pH-dependent polymer conformation and protein adsorption/desorption on PAA, PEO, and mixed PEO/PAA brushes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:268-277. [PMID: 24328402 DOI: 10.1021/la403891k] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The conformation of polymer chains grafted on a substrate influences protein adsorption. In a previous study, adsorption/desorption of albumin was demonstrated on mixed poly(ethylene oxide) (PEO)/poly(acrylic acid) (PAA) brushes, triggered by solutions of adequate pH and ionic strength (I). In the present work, homolayers of PEO or PAA are submitted to saline solutions with pH from 3 to 9 and I from 10(-5) to 10(-1) M, and their conformation is evaluated in real time using quartz crystal microbalance with dissipation monitoring (QCM-D). Shrinkage/swelling of PAA chains and hydration and salt condensation in the brush are evidenced. The adsorption of human serum albumin (HSA) onto such brushes is also monitored in these different saline solutions, leading to a deep understanding of the influence of polymer chain conformation, modulated by pH and I, on protein adsorption. A detailed model of the conformation of PEO/PAA mixed brushes depending on pH and I is then proposed, providing a rationale for the identification of conditions for the successive adsorption and desorption of proteins on such mixed brushes. The adsorption/desorption of albumin on PEO/PAA is demonstrated using QCM-D.
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Affiliation(s)
- M F Delcroix
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain , Croix du Sud 1 (L7.04.01), 1348 Louvain-la-Neuve, Belgium
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37
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Jia J, Wang Z, Lu W, Yang L, Wu Q, Qin W, Hu Q, Tang BZ. Monitoring layer-by-layer self-assembly process of natural polyelectrolytes by fluorescent bioconjugate with aggregation-induced emission characteristic. J Mater Chem B 2014; 2:8406-8411. [DOI: 10.1039/c4tb01158a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Exponential growth of multilayer films was monitored by fluorescence spectra using aggregation-induced-emission fluorogens, which is in accordance with ellipsometry results.
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Affiliation(s)
- Jingwei Jia
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
| | - Zhengke Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
| | - Wentao Lu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
| | - Ling Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
| | - Qingwen Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
| | - Wei Qin
- Department of Chemistry
- Division of Biomedical Engineering
- Institute for Advanced Study and Institute of Molecular Functional Materials
- The Hong Kong University of Science and Technology (HKUST)
- Kowloon, China
| | - Qiaoling Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027, China
| | - Ben Zhong Tang
- Department of Chemistry
- Division of Biomedical Engineering
- Institute for Advanced Study and Institute of Molecular Functional Materials
- The Hong Kong University of Science and Technology (HKUST)
- Kowloon, China
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38
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Costa RR, Mano JF. Polyelectrolyte multilayered assemblies in biomedical technologies. Chem Soc Rev 2014; 43:3453-79. [DOI: 10.1039/c3cs60393h] [Citation(s) in RCA: 225] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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39
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Ma Y, Dong J, Bhattacharjee S, Wijeratne S, Bruening ML, Baker GL. Increased protein sorption in poly(acrylic acid)-containing films through incorporation of comb-like polymers and film adsorption at low pH and high ionic strength. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:2946-54. [PMID: 23351043 PMCID: PMC3727236 DOI: 10.1021/la305137m] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In principle, incorporation of comb-like block copolymers in multilayer polyelectrolyte films can both increase film thickness relative to coatings containing linear polymers and provide more swollen films for increased sorption of proteins. In the absence of added salt, alternating adsorption of 5 bilayers of protonated poly(allylamine) (PAH) and comb-like poly(2-hydroxyethyl methacrylate)-graft-poly(acrylic acid) (PHEMA-g-PAA) leads to ∼2-fold thicker coatings than adsorption of PAH and linear PAA, and the difference in the thicknesses of the two coatings increases with the number of bilayers. Moreover, the (PAH/PHEMA-g-PAA)n films sorb 2- to 4-fold more protein than corresponding films prepared with linear PAA, and coatings deposited at pH 3.0 sorb more protein than coatings adsorbed at pH 5.0, 7.0, or 9.0. In fact changes in deposition pH and addition of 0.5 M NaCl to polyelectrolyte adsorption solutions alter protein sorption more dramatically than variations in the constituent polymer architecture. When deposited from 0.5 M NaCl at pH 3.0, both (PAH/PHEMA-g-PAA)5 and (PAH/PAA)5 films increase in thickness more than 400% upon adsorption of lysozyme. These films contain a high concentration of free -COOH groups, and subsequent deprotonation of these groups at neutral pH likely contributes to increased protein binding. Lysozyme sorption stabilizes these films, as without lysozyme films deposited at pH 3.0 from 0.5 M NaCl desorb at neutral pH. Films deposited at pH 9.0 from 0.5 M NaCl are more stable and also bind large amounts of lysozyme. The high binding capacities of these films make them attractive for potential applications in protein isolation or immobilization of enzymes.
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Affiliation(s)
| | | | | | - Salinda Wijeratne
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - Merlin L. Bruening
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
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40
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Oliveira SM, Silva TH, Reis RL, Mano JF. Hierarchical fibrillar scaffolds obtained by non-conventional layer-by-layer electrostatic self-assembly. Adv Healthc Mater 2013. [PMID: 23184814 DOI: 10.1002/adhm.201200204] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A new application of layer-by-layer assembly is presented, able to create nano/micro fibrils or nanocoatings inside 3D scaffolds using non-fibrillar polyelectrolytes for tissue-engineering applications. This approach shows promise for developing advanced scaffolds with controlled nano/micro environments, and nature and architectures similar to the natural extracellular matrix, leading to improved biological performance.
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Affiliation(s)
- Sara M Oliveira
- 3Bs Research Group-Biomaterials, Biodegradables and Biomimetics, AvePark, Zona Industrial da Gandra S. Claúdio do Barco, 4806-909 Caldas das Taipas - Guimarães, Portugal
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41
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Gnanaprakasam Thankam F, Muthu J. Influence of plasma protein–hydrogel interaction moderated by absorption of water on long-term cell viability in amphiphilic biosynthetic hydrogels. RSC Adv 2013. [DOI: 10.1039/c3ra43710h] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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42
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Zustiak SP, Wei Y, Leach JB. Protein-hydrogel interactions in tissue engineering: mechanisms and applications. TISSUE ENGINEERING PART B-REVIEWS 2012; 19:160-71. [PMID: 23150926 DOI: 10.1089/ten.teb.2012.0458] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Recent advances in our understanding of the sophistication of the cellular microenvironment and the dynamics of tissue remodeling during development, disease, and regeneration have increased our appreciation of the current challenges facing tissue engineering. As this appreciation advances, we are better equipped to approach problems in the biology and therapeutics of even more complex fields, such as stem cells and cancer. To aid in these studies, as well as the established areas of tissue engineering, including cardiovascular, musculoskeletal, and neural applications, biomaterials scientists have developed an extensive array of materials with specifically designed chemical, mechanical, and biological properties. Herein, we highlight an important topic within this area of biomaterials research, protein-hydrogel interactions. Due to inherent advantages of hydrated scaffolds for soft tissue engineering as well as specialized bioactivity of proteins and peptides, this field is well-posed to tackle major needs within emerging areas of tissue engineering. We provide an overview of the major modes of interactions between hydrogels and proteins (e.g., weak forces, covalent binding, affinity binding), examples of applications within growth factor delivery and three-dimensional scaffolds, and finally future directions within the area of hydrogel-protein interactions that will advance our ability to control the cell-biomaterial interface.
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Affiliation(s)
- Silviya P Zustiak
- National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
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43
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Huang X, Lin N, Hang R, Wang X, Zhang X, Tang B. Modulating the behaviors of C3A cells via surface charges of polyelectrolyte multilayers. Carbohydr Polym 2012; 92:1064-70. [PMID: 23399129 DOI: 10.1016/j.carbpol.2012.10.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 09/05/2012] [Accepted: 10/24/2012] [Indexed: 02/03/2023]
Abstract
The purpose of this study was to evaluate in vitro how the modulating surface charges of materials influenced the behaviors of hepatocytes. Cells of a human hepatocyte cell line, C3A, which have been used in a clinically tested bioartificial liver, were conducted as cell models. Polyelectrolyte multilayers (PEMs) of poly-L-lysine and alginate biopolymers were fabricated and then the zeta potential was assessed. Protein adsorption study showed that fibrinogen deposition could be modulated via tuning the terminal layer and the surface charges of PEMs. Furthermore, through observing the cellular morphology, viability, functional protein analysis and gene expression, we found that the behavior of C3A cells could be modulated via tuning of surface charges on PEMs, which was different from that via grafting functional groups on PEMs. It suggested that the PEMs with different charges could be used in vitro to manipulate cell behaviors to improve upon the design of tissue engineering.
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Affiliation(s)
- Xiaobo Huang
- Institute of Surface Engineering, Taiyuan University of Technology, 79 Yingze Road, Taiyuan 030024, PR China
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44
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Speight RE, Cooper MA. A Survey of the 2010 Quartz Crystal Microbalance Literature. J Mol Recognit 2012; 25:451-73. [DOI: 10.1002/jmr.2209] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Robert E. Speight
- Institute for Molecular Bioscience; The University of Queensland; St. Lucia; Brisbane; 4072; Australia
| | - Matthew A. Cooper
- Institute for Molecular Bioscience; The University of Queensland; St. Lucia; Brisbane; 4072; Australia
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45
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Lee HS, Tsai S, Kuo CC, Bassani AW, Pepe-Mooney B, Miksa D, Masters J, Sullivan R, Composto RJ. Chitosan adsorption on hydroxyapatite and its role in preventing acid erosion. J Colloid Interface Sci 2012; 385:235-43. [PMID: 22840874 DOI: 10.1016/j.jcis.2012.06.074] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2012] [Revised: 06/23/2012] [Accepted: 06/25/2012] [Indexed: 10/28/2022]
Abstract
Polymer adsorption onto an artificial saliva (AS) layer is investigated using quartz-crystal microbalance with dissipation (QCM-D) and chitosan as the model polymer. QCM-D is utilized in an innovative manner to monitor in situ adsorption of chitosan (CH) onto a hydroxyapatite (HA) coated crystal and to examine the ability of the adsorbed layer to "protect" the HA upon sequential exposure to acidic solutions. After deposition of a thin AS layer (16 nm), the total thickness on the HA substrate increases to 37 nm upon exposure to CH at pH 5.5 for 10 min. Correspondingly, the surface charge changes from negative (i.e., AS) to positive, consistent with the adsorption the polycationic CH onto or into the AS layer. Upon exposure to an oxidizing agent, the chitosan cross-links and collapses as noted by a decrease in thickness to 10 nm and an increase in the shear modulus by an order of magnitude. Atomic force microscopy (AFM) is used to determine the surface morphology and RMS roughness of the coated and HA surfaces after citric acid challenges. Both physisorbed and cross-linked chitosan are demonstrated to limit and prevent the erosion of HA, respectively.
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Affiliation(s)
- Hyun-Su Lee
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, United States.
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46
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Chaubaroux C, Vrana E, Debry C, Schaaf P, Senger B, Voegel JC, Haikel Y, Ringwald C, Hemmerlé J, Lavalle P, Boulmedais F. Collagen-based fibrillar multilayer films cross-linked by a natural agent. Biomacromolecules 2012; 13:2128-35. [PMID: 22662909 DOI: 10.1021/bm300529a] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Surface functionalization plays an important role in the design of biomedical implants, especially when layer forming cells, such as endothelial or epithelial cells, are needed. In this study, we define a novel nanoscale surface coating composed of collagen/alginate polyelectrolyte multilayers and cross-linked for stability with genipin. This buildup follows an exponential growth regime versus the number of deposition cycles with a distinct nanofibrillar structure that is not damaged by the cross-linking step. Stability and cell compatibility of the cross-linked coatings were studied with human umbilical vein endothelial cells. The surface coating can be covered by a monolayer of vascular endothelial cells within 5 days. Genipin cross-linking renders the surface more suitable for cell attachment and proliferation compared to glutaraldehyde (more conventional cross-linker) cross-linked surfaces, where cell clumps in dispersed areas were observed. In summary, it is possible with the defined system to build fibrillar structures with a nanoscale control of film thickness, which would be useful for in vivo applications such as inner lining of lumens for vascular and tracheal implants.
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Affiliation(s)
- Christophe Chaubaroux
- Institut National de la Santé et de la Recherche Médicale , INSERM UMR 977, Biomaterials and Tissue Engineering, Strasbourg, France
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47
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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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Natarajan V, Saravanakumar P, Madhan B. Collagen adsorption on quercetin loaded polycaprolactone microspheres: Approach for “stealth” implant. Int J Biol Macromol 2012; 50:1091-4. [DOI: 10.1016/j.ijbiomac.2012.03.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 03/01/2012] [Accepted: 03/06/2012] [Indexed: 12/30/2022]
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49
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Francesko A, Soares da Costa D, Lisboa P, Reis RL, Pashkuleva I, Tzanov T. GAGs-thiolated chitosan assemblies for chronic wounds treatment: control of enzyme activity and cell attachment. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31051a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Miranda ES, Silva TH, Reis RL, Mano JF. Nanostructured Natural-Based Polyelectrolyte Multilayers to Agglomerate Chitosan Particles into Scaffolds for Tissue Engineering. Tissue Eng Part A 2011; 17:2663-74. [DOI: 10.1089/ten.tea.2010.0635] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Emanuel Sá Miranda
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Tiago H. Silva
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, 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, Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - João F. Mano
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
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