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Amokrane G, Humblot V, Jubeli E, Yagoubi N, Ramtani S, Migonney V, Falentin-Daudré C. Electrospun Poly(ε-caprolactone) Fiber Scaffolds Functionalized by the Covalent Grafting of a Bioactive Polymer: Surface Characterization and Influence on in Vitro Biological Response. ACS OMEGA 2019; 4:17194-17208. [PMID: 31656893 PMCID: PMC6811844 DOI: 10.1021/acsomega.9b01647] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 07/19/2019] [Indexed: 05/10/2023]
Abstract
The purpose of this study is to present the poly(caprolactone) (PCL) functionalization by the covalent grafting of poly(sodium styrene sulfonate) on electrospun scaffolds using the "grafting from" technique and evaluate the effect of the coating and surface wettability on the biological response. The "grafting from" technique required energy (thermal or UV) to induce the decomposition of the PCL (hydro)peroxides and generate radicals able to initiate the polymerization of NaSS. In addition, UV irradiation was used to initiate the radical polymerization of NaSS directly from the surface (UV direct "grafting from"). The interest of these two techniques is their easiness, the reduction of the number of process steps, and its applicability to the industry. The selected parameters allow controlling the grafting rate (i.e., degree of functionalization). The aim of the study was to compare two covalent grafting in terms of surface functionalization and hydrophilicity and their effect on the in vitro biological responses of fibroblasts. The achieved results showed the influence of the sulfonate functional groups on the cell response. In addition, outcomes highlighted that the UV direct "grafting from" method allows to moderate the amount of sulfonate groups and the surface hydrophilicity presents a considerable interest for covalently immobilizing bioactive polymers onto electrospun scaffolds designed for tissue engineering applications using efficient post-electrospinning chemical modification.
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Affiliation(s)
- Gana Amokrane
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
| | - Vincent Humblot
- Sorbonne Université, Caboratoire
de Réactivité de Surface, UMR CNRS 7197, 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Emile Jubeli
- Laboratoire Matériaux et Santé EA 401,
UFR de Pharmacie, Université Paris-Sud, 92290 Châtenay-Malabry, France
| | - Najet Yagoubi
- Laboratoire Matériaux et Santé EA 401,
UFR de Pharmacie, Université Paris-Sud, 92290 Châtenay-Malabry, France
| | - Salah Ramtani
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
| | - Véronique Migonney
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
| | - Céline Falentin-Daudré
- Université
Paris 13 Sorbonne Paris Cité, Laboratoire CSPBAT, équipe
LBPS, CNRS (UMR 7244), Institut Galilée, 93430 Villetaneuse, France
- E-mail:
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Amokrane G, Falentin-Daudré C, Ramtani S, Migonney V. A Simple Method to Functionalize PCL Surface by Grafting Bioactive Polymers Using UV Irradiation. Ing Rech Biomed 2018. [DOI: 10.1016/j.irbm.2018.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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3
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Zheng Y, Liu L, Ma Y, Xiao L, Liu Y. Enhanced Osteoblasts Responses to Surface-Sulfonated Polyetheretherketone via a Single-Step Ultraviolet-Initiated Graft Polymerization. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02158] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Highly crystalline sphere and rod-shaped TiO 2 nanoparticles: A facile route to bio-polymer grafting. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.flm.2017.12.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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5
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Amokrane G, Hocini A, Ameyama K, Dirras G, Migonney V, Falentin-Daudre C. Functionalization of New Biocompatible Titanium Alloys with Harmonic Structure Design by Using UV Irradiation. Ing Rech Biomed 2017. [DOI: 10.1016/j.irbm.2017.06.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Grafting of architecture controlled poly(styrene sodium sulfonate) onto titanium surfaces using bio-adhesive molecules: Surface characterization and biological properties. Biointerphases 2017; 12:02C418. [PMID: 28614950 DOI: 10.1116/1.4985608] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
This contribution reports on grafting of bioactive polymers such as poly(sodium styrene sulfonate) (polyNaSS) onto titanium (Ti) surfaces. This grafting process uses a modified dopamine as an anchor molecule to link polyNaSS to the Ti surface. The grafting process combines reversible addition-fragmentation chain transfer polymerization, postpolymerization modification, and thiol-ene chemistry. The first step in the process is to synthetize architecture controlled polyNaSS with a thiol end group. The second step is the adhesion of the dopamine acrylamide (DA) anchor onto the Ti surfaces. The last step is grafting polyNaSS to the DA-modified Ti surfaces. The modified dopamine anchor group with its bioadhesive properties is essential to link bioactive polymers to the Ti surface. The polymers are characterized by conventional methods (nuclear magnetic resonance, size exclusion chromatography, and attenuated total reflection-Fourier-transformed infrared), and the grafting is characterized by x-ray photoelectron spectroscopy, time-of-flight secondary ion mass spectrometry, and quartz crystal microbalance with dissipation monitoring. To illustrate the biocompatibility of the grafted Ti-DA-polyNaSS surfaces, their interactions with proteins (albumin and fibronectin) and cells are investigated. Both albumin and fibronectin are readily adsorbed onto Ti-DA-polyNaSS surfaces. The biocompatibility of modified Ti-DA-polyNaSS and control ungrafted Ti surfaces is tested using human bone cells (Saos-2) in cell culture for cell adhesion, proliferation, differentiation, and mineralization. This study presents a new, simple way to graft bioactive polymers onto Ti surfaces using a catechol intermediary with the aim of demonstrating the biocompatibility of these size controlled polyNaSS grafted surfaces.
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Ting M, Jefferies SR, Xia W, Engqvist H, Suzuki JB. Classification and Effects of Implant Surface Modification on the Bone: Human Cell-Based In Vitro Studies. J ORAL IMPLANTOL 2016; 43:58-83. [PMID: 27897464 DOI: 10.1563/aaid-joi-d-16-00079] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Implant surfaces are continuously being improved to achieve faster osseointegration and a stronger bone to implant interface. This review will present the various implant surfaces, the parameters for implant surface characterization, and the corresponding in vitro human cell-based studies determining the strength and quality of the bone-implant contact. These in vitro cell-based studies are the basis for animal and clinical studies and are the prelude to further reviews on how these surfaces would perform when subjected to the oral environment and functional loading.
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Affiliation(s)
- Miriam Ting
- 1 Temple University Kornberg School of Dentistry, Philadelphia, Pa
| | - Steven R Jefferies
- 2 Department of Restorative Dentistry, Temple University Kornberg School of Dentistry, Philadelphia, Pa
| | - Wei Xia
- 3 Department of Engineering Science, Uppsala University, Uppsala, Sweden
| | - Håkan Engqvist
- 3 Department of Engineering Science, Uppsala University, Uppsala, Sweden
| | - Jon B Suzuki
- 4 Department of Periodontology and Oral Implantology, Temple University Kornberg School of Dentistry, Philadelphia, Pa
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Foster RN, Harrison ET, Castner DG. ToF-SIMS and XPS Characterization of Protein Films Adsorbed onto Bare and Sodium Styrenesulfonate-Grafted Gold Substrates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3207-16. [PMID: 26977542 PMCID: PMC4821661 DOI: 10.1021/acs.langmuir.5b04743] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The adsorption of single-component bovine serum albumin (BSA), bovine fibrinogen (Fgn), and bovine immunoglobulin G (IgG) films as well as multicomponent bovine plasma films onto bare and sodium styrenesulfonate (NaSS)-grafted gold substrates was characterized. The adsorption isotherms, measured via X-ray photoelectron spectroscopy, showed that at low solution concentrations all three single-component proteins adsorb with higher affinity onto gold surfaces compared to NaSS surfaces. However, at higher concentrations, NaSS surfaces adsorb the same or more total protein than gold surfaces. This may be because proteins that adsorb onto NaSS undergo structural rearrangements, resulting in a larger fraction of irreversibly adsorbed species over time. Still, with the possible exception of BSA adsorbed onto gold, neither surface appeared to have saturated at the highest protein solution concentration studied. Principal component (PC) analysis of amino acid mass fragments from time-of-flight secondary ion mass spectra distinguished between the same protein adsorbed onto NaSS and gold surfaces, suggesting that proteins adsorb differently on NaSS and gold surfaces. Explored further using peak ratios for buried/surface amino acids for each protein, we found that proteins denature more on NaSS surfaces than on gold surfaces. Also, using peak ratios for asymmetrically distributed amino acids, potential structural differences were postulated for BSA and IgG adsorbed onto NaSS and gold surfaces. PC modeling, used to track changes in plasma adsorption with time, suggests that plasma films on NaSS and Au surfaces become more Fgn-like with increasing adsorption time. However, the PC models included only three proteins, where plasma is composed of hundreds of proteins. Therefore, while both gold and NaSS appear to adsorb more Fgn with time, further study is required to confirm that this is representative of the final state of the plasma films.
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Affiliation(s)
- Rami N. Foster
- National ESCA and Surface Analysis Center for Biomedical Problems, Department of Chemical Engineering, University of Washington – Seattle, Seattle, WA 98195
| | - Elisa T. Harrison
- National ESCA and Surface Analysis Center for Biomedical Problems, Department of Chemical Engineering, University of Washington – Seattle, Seattle, WA 98195
| | - David G. Castner
- National ESCA and Surface Analysis Center for Biomedical Problems, Department of Chemical Engineering, University of Washington – Seattle, Seattle, WA 98195
- National ESCA and Surface Analysis Center for Biomedical Problems, Department of Bioengineering, University of Washington – Seattle, Seattle, WA 98195
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Foster RN, Johansson PK, Tom NR, Koelsch P, Castner DG. Experimental design and analysis of activators regenerated by electron transfer-atom transfer radical polymerization experimental conditions for grafting sodium styrene sulfonate from titanium substrates. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY. A, VACUUM, SURFACES, AND FILMS : AN OFFICIAL JOURNAL OF THE AMERICAN VACUUM SOCIETY 2015; 33:05E131. [PMID: 26396463 PMCID: PMC4570287 DOI: 10.1116/1.4929506] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Revised: 08/12/2015] [Accepted: 08/13/2015] [Indexed: 06/01/2023]
Abstract
A 24 factorial design was used to optimize the activators regenerated by electron transfer-atom transfer radical polymerization (ARGET-ATRP) grafting of sodium styrene sulfonate (NaSS) films from trichlorosilane/10-undecen-1-yl 2-bromo-2-methylpropionate (ester ClSi) functionalized titanium substrates. The process variables explored were: (1) ATRP initiator surface functionalization reaction time; (2) grafting reaction time; (3) CuBr2 concentration; and (4) reducing agent (vitamin C) concentration. All samples were characterized using x-ray photoelectron spectroscopy (XPS). Two statistical methods were used to analyze the results: (1) analysis of variance with [Formula: see text], using average [Formula: see text] XPS atomic percent as the response; and (2) principal component analysis using a peak list compiled from all the XPS composition results. Through this analysis combined with follow-up studies, the following conclusions are reached: (1) ATRP-initiator surface functionalization reaction times have no discernable effect on NaSS film quality; (2) minimum (≤24 h for this system) grafting reaction times should be used on titanium substrates since NaSS film quality decreased and variability increased with increasing reaction times; (3) minimum (≤0.5 mg cm-2 for this system) CuBr2 concentrations should be used to graft thicker NaSS films; and (4) no deleterious effects were detected with increasing vitamin C concentration.
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Affiliation(s)
- Rami N Foster
- Department of Chemical Engineering, University of Washington-Seattle, and National ESCA and Surface Analysis Center for Biomedical Problems , Seattle, Washington 98195
| | - Patrik K Johansson
- Department of Bioengineering, University of Washington-Seattle, and National ESCA and Surface Analysis Center for Biomedical Problems , Seattle, Washington 98195
| | - Nicole R Tom
- Department of Chemical Engineering, Carnegie Mellon University , Pittsburg, Pennsylvania 15213
| | - Patrick Koelsch
- Department of Bioengineering, University of Washington-Seattle, and National ESCA and Surface Analysis Center for Biomedical Problems , Seattle, Washington 98195
| | - David G Castner
- Departments of Chemical Engineering and Bioengineering, University of Washington-Seattle, and National ESCA and Surface Analysis Center for Biomedical Problems , Seattle, Washington 98195
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Role of protein environment and bioactive polymer grafting in the S. epidermidis response to titanium alloy for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:176-83. [DOI: 10.1016/j.msec.2014.08.054] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 07/15/2014] [Accepted: 08/29/2014] [Indexed: 11/22/2022]
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11
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Falentin-Daudre C. Functionalization of Biomaterials and Applications. Biomaterials 2014. [DOI: 10.1002/9781119043553.ch6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Migonney V. Bioactive Polymers and Surfaces: A Solution for Implant Devices. Biomaterials 2014. [DOI: 10.1002/9781119043553.ch5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Chen WC, Lo Y, Chen HS. Effects of Ti surface treatments with silane and arginylglycylaspartic acid peptide on bone cell progenitors. Odontology 2014; 103:322-32. [DOI: 10.1007/s10266-014-0169-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Accepted: 05/20/2014] [Indexed: 10/24/2022]
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14
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Li H, Chen S. Biomedical coatings on polyethylene terephthalate artificial ligaments. J Biomed Mater Res A 2014; 103:839-45. [PMID: 24825100 DOI: 10.1002/jbm.a.35218] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 04/01/2014] [Accepted: 05/04/2014] [Indexed: 12/19/2022]
Abstract
This review comprehensively covers research conducted to enhance polyethylene terephthalate (PET) artificial ligament osseointegration in the bone tunnel. These strategies, using biocompatible or bioactive coatings, had a positive effect in promoting PET ligament osseointegration by increasing bone formation and decreasing fibrous scar tissue at the ligament-to-bone interface. The improved osseointegration can be translated into a significant increase in the biomechanical pull-out loads. However, the load-to-failure of coated ligament is far lower than that of native ACL. Coatings to promote intra-articular ligamentization are also discussed in this study. Collectively, our investigations may arouse further study of the biological coating of PET artificial ligaments in order to effectively enhance ligament osseointegration and promote artificial ligament ligamentization.
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Affiliation(s)
- Hong Li
- Department of Sports Medicine, Huashan Hospital, Shanghai, China
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Felgueiras H, Migonney V. Sulfonate groups grafted on Ti6Al4V favor MC3T3-E1 cell performance in serum free medium conditions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 39:196-202. [DOI: 10.1016/j.msec.2014.03.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 01/30/2014] [Accepted: 03/01/2014] [Indexed: 01/22/2023]
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16
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SAITOH S, NEZU T, SASAKI K, TAIRA M, MIURA H. Effect of gold deposition onto titanium on the adsorption of alkanethiols as the protein linker functionalizing the metal surface. Dent Mater J 2014; 33:111-7. [DOI: 10.4012/dmj.2013-182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Djaker N, Brustlein S, Rohman G, Huot S, de la Chapelle ML, Migonney V. Characterization of a synthetic bioactive polymer by nonlinear optical microscopy. BIOMEDICAL OPTICS EXPRESS 2013; 5:149-57. [PMID: 24466483 PMCID: PMC3891327 DOI: 10.1364/boe.5.000149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 11/08/2013] [Accepted: 11/14/2013] [Indexed: 05/11/2023]
Abstract
Tissue Engineering is a new emerging field that offers many possibilities to produce three-dimensional and functional tissues like ligaments or scaffolds. The biocompatibility of these materials is crucial in tissue engineering, since they should be integrated in situ and should induce a good cell adhesion and proliferation. One of the most promising materials used for tissue engineering are polyesters such as Poly-ε-caprolactone (PCL), which is used in this work. In our case, the bio-integration is reached by grafting a bioactive polymer (pNaSS) on a PCL surface. Using nonlinear microscopy, PCL structure is visualized by SHG and proteins and cells by two-photon excitation autofluorescence generation. A comparative study between grafted and nongrafted polymer films is provided. We demonstrate that the polymer grafting improves the protein adsorption by a factor of 75% and increase the cell spreading onto the polymer surface. Since the spreading is directly related to cell adhesion and proliferation, we demonstrate that the pNaSS grafting promotes PCL biocompatibility.
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Affiliation(s)
- N. Djaker
- Université Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS (UMR 7244), 74 rue Marcel Cachin, 93017, Bobigny,
France
| | - S. Brustlein
- Institut Fresnel, MOSAIC, CNRS, Aix-Marseille Université, Ecole Centrale Marseille, Domaine Universitaire St Jérôme,
France
| | - G. Rohman
- Université Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS (UMR 7244), 99 avenue JB Clément, 93430, Villetaneuse,
France
| | - S. Huot
- Université Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS (UMR 7244), 99 avenue JB Clément, 93430, Villetaneuse,
France
| | - M. Lamy de la Chapelle
- Université Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS (UMR 7244), 74 rue Marcel Cachin, 93017, Bobigny,
France
| | - V. Migonney
- Université Paris 13, Sorbonne Paris Cité, Laboratoire CSPBAT, CNRS (UMR 7244), 99 avenue JB Clément, 93430, Villetaneuse,
France
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Presence of sulfonate groups on Ti6Al4V surfaces enhances osteoblastic attachment strength at the interface. Ing Rech Biomed 2013. [DOI: 10.1016/j.irbm.2013.09.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Foster RN, Keefe AJ, Jiang S, Castner DG. Surface initiated atom transfer radical polymerization grafting of sodium styrene sulfonate from titanium and silicon substrates. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY. A, VACUUM, SURFACES, AND FILMS : AN OFFICIAL JOURNAL OF THE AMERICAN VACUUM SOCIETY 2013; 31:6F103. [PMID: 24482558 PMCID: PMC3869207 DOI: 10.1116/1.4819833] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 08/16/2013] [Indexed: 06/01/2023]
Abstract
This study investigates the grafting of poly-sodium styrene sulfonate (pNaSS) from trichlorosilane/10-undecen-1-yl 2-bromo-2-methylpropionate functionalized Si and Ti substrates by atom transfer radical polymerization (ATRP). The composition, molecular structure, thickness, and topography of the grafted pNaSS films were characterized with x-ray photoelectron spectroscopy (XPS), time-of-flight secondary ion mass spectrometry (ToF-SIMS), variable angle spectroscopic ellipsometry (VASE), and atomic force microscopy (AFM), respectively. XPS and ToF-SIMS results were consistent with the successful grafting of a thick and uniform pNaSS film on both substrates. VASE and AFM scratch tests showed the films were between 25 and 49 nm thick on Si, and between 13 and 35 nm thick on Ti. AFM determined root-mean-square roughness values were ∼2 nm on both Si and Ti substrates. Therefore, ATRP grafting is capable of producing relatively smooth, thick, and chemically homogeneous pNaSS films on Si and Ti substrates. These films will be used in subsequent studies to test the hypothesis that pNaSS-grafted Ti implants preferentially adsorb certain plasma proteins in an orientation and conformation that modulates the foreign body response and promotes formation of new bone.
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Affiliation(s)
- Rami N Foster
- Department of Chemical Engineering, University of Washington-Seattle, and National ESCA and Surface Analysis Center for Biomedical Problems, Seattle, Washington 98195
| | - Andrew J Keefe
- Department of Chemical Engineering, University of Washington-Seattle, Seattle, Washington 98195
| | - Shaoyi Jiang
- Department of Chemical Engineering, University of Washington-Seattle, Seattle, Washington 98195
| | - David G Castner
- Departments of Chemical Engineering and Bioengineering, University of Washington-Seattle, and National ESCA and Surface Analysis Center for Biomedical Problems, Seattle, Washington 98195
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Roughened titanium surfaces with silane and further RGD peptide modification in vitro. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:2713-22. [DOI: 10.1016/j.msec.2013.02.040] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 12/18/2012] [Accepted: 02/20/2013] [Indexed: 01/02/2023]
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21
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Vaquette C, Viateau V, Guérard S, Anagnostou F, Manassero M, Castner DG, Migonney V. The effect of polystyrene sodium sulfonate grafting on polyethylene terephthalate artificial ligaments on in vitro mineralisation and in vivo bone tissue integration. Biomaterials 2013; 34:7048-63. [PMID: 23790438 DOI: 10.1016/j.biomaterials.2013.05.058] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 05/24/2013] [Indexed: 02/06/2023]
Abstract
This study investigates the impact of polystyrene sodium sulfonate (PolyNaSS) grafting onto the osseo-integration of a polyethylene terephthalate artificial ligament (Ligament Advanced Reinforcement System, LARS™) used for Anterior Cruciate Ligament (ACL). The performance of grafted and non-grafted ligaments was assessed in vitro by culturing human osteoblasts under osteogenic induction and this demonstrated that the surface modification was capable of up-regulating the secretion of ALP and induced higher level of mineralisation as measured 6 weeks post-seeding by Micro-Computed Tomography. Grafted and non-grafted LARS™ were subsequently implanted in an ovine model for ACL reconstruction and the ligament-to-bone interface was evaluated by histology and biomechanical testings 3 and 12 months post-implantation. The grafted ligaments exhibited more frequent direct ligament-to-bone contact and bone formation in the core of the ligament at the later time point than the non-grafted specimens, the grafting also significantly reduced the fibrous encapsulation of the ligament 12 months post-implantation. However, this improved osseo-integration was not translated into a significant increase in the biomechanical pull-out loads. These results provide evidences that PolyNaSS grafting improved the osseo-integration of the artificial ligament within the bone tunnels. This might positively influence the outcome of the surgical reconstructions, as higher ligament stability is believed to limit micro-movement and therefore permits earlier and enhanced healing.
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Affiliation(s)
- Cédryck Vaquette
- Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk avenue, Kelvin Grove, QLD 4278, Australia.
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Migonney V, Ben Aissa I, Lutomski D, Hélary G, Oughlis S, Poirier F, Changotade S, Peltzer J, Lataillade JJ, Blanquaert D, De Lambert B, Viateau V, Manassero M, Crémieux AC, Saleh-Mghir A, Thomas D. Controlled cell Adhesion and aCtivity onto TAl6V TItanium alloy by grafting of the SURFace: Elaboration of orthopaedic implants capable of preventing joint prosthesis infection. Ing Rech Biomed 2013. [DOI: 10.1016/j.irbm.2013.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Development of anti-icing materials by chemical tailoring of hydrophobic textured metallic surfaces. J Colloid Interface Sci 2013; 394:539-44. [DOI: 10.1016/j.jcis.2012.11.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 11/09/2012] [Accepted: 11/10/2012] [Indexed: 11/16/2022]
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