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Pandiyaraj KN, Ramkumar MC, Arun Kumar A, Padmanabhan PVA, Pichumani M, Bendavid A, Cools P, De Geyter N, Morent R, Kumar V, Gopinath P, Su PG, Deshmukh RR. Evaluation of surface properties of low density polyethylene (LDPE) films tailored by atmospheric pressure non-thermal plasma (APNTP) assisted co-polymerization and immobilization of chitosan for improvement of antifouling properties. Mater Sci Eng C Mater Biol Appl 2018; 94:150-160. [PMID: 30423696 DOI: 10.1016/j.msec.2018.08.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 06/25/2018] [Accepted: 08/30/2018] [Indexed: 11/26/2022]
Abstract
This work describes the development of antifouling functional coatings on the surface of low density polyethylene (LDPE) films by means of atmospheric pressure non-thermal plasma (APNTP) assisted copolymerization using a mixture of acrylic acid and poly (ethylene glycol). The aim of the study was to investigate the antifouling properties of the plasma copolymerized LDPE films and the same was carried out as a function of deposition time with fixed applied potential of 14 kV. In a second stage, the plasma copolymerized LDPE films were functionalized with chitosan (CHT) to further enhance its antifouling properties. The surface hydrophilicity, structural, topographical and chemistry of the plasma copolymerized LDPE films were examined by contact angle (CA), X-ray diffraction (XRD), atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Coating stability was also studied in detail over a storage time of 15 days by storing in water and air. The antifouling properties of the plasma copolymerized LDPE films were examined via protein adsorption and platelet adhesion studies. CA study showed significant changes in surface wettability after the coating process. XPS and FTIR analysis proved the presence of a dense multifunctional coating and an efficient immobilization of CHT. Substantial amendments in surface topography were observed, positively enhancing the overall surface hydrophilicity. Finally, in-vitro analysis showed excellent antifouling behavior of the surface modified LDPE films.
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Affiliation(s)
- K N Pandiyaraj
- Surface Engineering Laboratory, Department of Physics, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, India.
| | - M C Ramkumar
- Surface Engineering Laboratory, Department of Physics, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, India
| | - A Arun Kumar
- Surface Engineering Laboratory, Department of Physics, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, India
| | - P V A Padmanabhan
- Surface Engineering Laboratory, Department of Physics, Sri Shakthi Institute of Engineering and Technology, Coimbatore 641062, India
| | - M Pichumani
- Department of Nano Science and Technology, Sri Ramakrishna Engineering College, Coimbatore 641022, India
| | - Avi Bendavid
- Plasma Processing & Deposition Team, CSIRO Manufacturing Flagship, Australia
| | - Pieter Cools
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering, Ghent University, Jozef Plateaustraat 22, 9000 Ghent, Belgium
| | - N De Geyter
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering, Ghent University, Jozef Plateaustraat 22, 9000 Ghent, Belgium
| | - R Morent
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering, Ghent University, Jozef Plateaustraat 22, 9000 Ghent, Belgium
| | - Vinay Kumar
- Nanobiotechnology Laboratory, Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - P Gopinath
- Nanobiotechnology Laboratory, Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Pi-Guey Su
- Department of Chemistry, Chinese Culture University, Taipei 111, Taiwan
| | - R R Deshmukh
- Department of Physics, Institute of Chemical Technology, Matunga, Mumbai 400 019, India
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Conzatti G, Chamary S, De Geyter N, Cavalie S, Morent R, Tourrette A. Surface functionalization of plasticized chitosan films through PNIPAM grafting via UV and plasma graft polymerization. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.06.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Van Vrekhem S, Vloebergh K, Asadian M, Vercruysse C, Declercq H, Van Tongel A, De Wilde L, De Geyter N, Morent R. Improving the surface properties of an UHMWPE shoulder implant with an atmospheric pressure plasma jet. Sci Rep 2018; 8:4720. [PMID: 29549270 PMCID: PMC5856771 DOI: 10.1038/s41598-018-22921-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 02/21/2018] [Indexed: 11/09/2022] Open
Abstract
Insufficient glenoid fixation is one of the main reasons for failure in total shoulder arthroplasty. This is predominantly caused by the inert nature of the ultra-high molecular weight polyethylene (UHMWPE) used in the glenoid component of the implant, which makes it difficult to adhesively bind to bone cement or bone. Previous studies have shown that this adhesion can be ameliorated by changing the surface chemistry using plasma technology. An atmospheric pressure plasma jet is used to treat UHMWPE substrates and to modify their surface chemistry. The modifications are investigated using several surface analysis techniques. The adhesion with bone cement is assessed using pull-out tests while osteoblast adhesion and proliferation is also tested making use of several cell viability assays. Additionally, the treated samples are put in simulated body fluid and the resulting calcium phosphate (CaP) deposition is evaluated as a measure of the in vitro bioactivity of the samples. The results show that the plasma modifications result in incorporation of oxygen in the surface, which leads to a significant improved adhesion to bone cement, an enhanced osteoblast proliferation and a more pronounced CaP deposition. The plasma-treated surfaces are therefore promising to act as a shoulder implant.
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Affiliation(s)
- S Van Vrekhem
- Research Unit Plasma Technology, Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B-9000, Ghent, Belgium.
| | - K Vloebergh
- Research Unit Plasma Technology, Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B-9000, Ghent, Belgium
| | - M Asadian
- Research Unit Plasma Technology, Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B-9000, Ghent, Belgium
| | - C Vercruysse
- Tissue Engineering Group, Department of Basic Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, De Pintelaan 185 6B3, 9000, Ghent, Belgium
| | - H Declercq
- Tissue Engineering Group, Department of Basic Medical Sciences, Faculty of Medicine and Health Sciences, Ghent University, De Pintelaan 185 6B3, 9000, Ghent, Belgium
| | - A Van Tongel
- Department of Orthopedic Surgery and Traumatology, Ghent University Hospital, De Pintelaan 185 13K12, 9000, Ghent, Belgium
| | - L De Wilde
- Department of Orthopedic Surgery and Traumatology, Ghent University Hospital, De Pintelaan 185 13K12, 9000, Ghent, Belgium
| | - N De Geyter
- Research Unit Plasma Technology, Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B-9000, Ghent, Belgium
| | - R Morent
- Research Unit Plasma Technology, Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41, B-9000, Ghent, Belgium
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Asadian M, Grande S, Morent R, Nikiforov A, Declercq H, De Geyter N. Effects of pre- and post-electrospinning plasma treatments on electrospun PCL nanofibers to improve cell interactions. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1742-6596/841/1/012018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Nguyen Dinh MT, Giraudon JM, Vandenbroucke AM, Morent R, De Geyter N, Lamonier JF. Manganese oxide octahedral molecular sieve K-OMS-2 as catalyst in post plasma-catalysis for trichloroethylene degradation in humid air. J Hazard Mater 2016; 314:88-94. [PMID: 27107238 DOI: 10.1016/j.jhazmat.2016.04.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 04/11/2016] [Accepted: 04/12/2016] [Indexed: 06/05/2023]
Abstract
The total oxidation of trichloroethylene (TCE) in air at low relative humidity (RH=10%) in the presence of CO2 (520ppmv) was investigated in function of energy density using an atmospheric pressure negative DC luminescent glow discharge combined with a cryptomelane catalyst positioned downstream of the plasma reactor at a temperature of 150°C. When using Non-Thermal Plasma (NTP) alone, it is found a low COx (x=1-2) yield in agreement with the detection of gaseous polychlorinated by-products in the outlet stream as well as ozone which is an harmful pollutant. Introduction of cryptomelane enhanced trichloroethylene removal, totally inhibited plasma ozone formation and increased significantly the COx yield. The improved performances of the hybrid system were mainly ascribed to the total destruction of plasma generated ozone on cryptomelane surface to produce active oxygen species. Consequently these active oxygen species greatly enhanced the abatement of the plasma non-reacted TCE and completely destroyed the hazardous plasma generated polychlorinated intermediates. The facile redox of Mn species associated with oxygen vacancies and mobility as well as the textural properties of the catalyst might also contribute as a whole to the efficiency of the process.
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Affiliation(s)
- M T Nguyen Dinh
- Université Lille, Sciences et Technologies, Unité de Catalyse et Chimie du Solide UMR CNRS UCCS 8181, 59655 Villeneuve d'Ascq, France; The University of Da-Nang, University of Science and Technology, 54, Nguyen Luong Bang, Da-Nang, Viet Nam
| | - J-M Giraudon
- Université Lille, Sciences et Technologies, Unité de Catalyse et Chimie du Solide UMR CNRS UCCS 8181, 59655 Villeneuve d'Ascq, France.
| | - A M Vandenbroucke
- Ghent University, Faculty of Engineering and Architecture, Department of Applied Physics, Research Unit Plasma Technology, Sint-Pietersnieuwstraat 41, 9000 Ghent, Belgium
| | - R Morent
- Ghent University, Faculty of Engineering and Architecture, Department of Applied Physics, Research Unit Plasma Technology, Sint-Pietersnieuwstraat 41, 9000 Ghent, Belgium
| | - N De Geyter
- Ghent University, Faculty of Engineering and Architecture, Department of Applied Physics, Research Unit Plasma Technology, Sint-Pietersnieuwstraat 41, 9000 Ghent, Belgium
| | - J-F Lamonier
- Université Lille, Sciences et Technologies, Unité de Catalyse et Chimie du Solide UMR CNRS UCCS 8181, 59655 Villeneuve d'Ascq, France
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Pandiyaraj KN, Kumar AA, Ramkumar MC, Sachdev A, Gopinath P, Cools P, De Geyter N, Morent R, Deshmukh RR, Hegde P, Han C, Nadagouda MN. Influence of non-thermal TiCl4/Ar+O2 plasma-assisted TiOx based coatings on the surface of polypropylene (PP) films for the tailoring of surface properties and cytocompatibility. Mater Sci Eng C Mater Biol Appl 2016; 62:908-18. [PMID: 26952498 DOI: 10.1016/j.msec.2016.02.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 02/11/2016] [Accepted: 02/15/2016] [Indexed: 11/26/2022]
Abstract
The superior bulk properties (corrosion resistance, high strength to weight ratio, relatively low cost and easy processing) of hydrocarbon based polymers such as polypropylene (PP) have contributed significantly to the development of new biomedical applications such as artificial organs and cell scaffolds. However, low cell affinity is one of the main draw backs for PP due to its poor surface properties. In tissue engineering, physico-chemical surface properties such as hydrophilicity, polar functional groups, surface charge and morphology play a crucial role to enrich the cell proliferation and adhesion. In this present investigation TiOx based biocompatible coatings were developed on the surface of PP films via DC excited glow discharge plasma, using TiCl4/Ar+O2 gas mixture as a precursor. Various TiOx-based coatings are deposited on the surface of PP films as a function of discharge power. The changes in hydrophilicity of the TiOx/PP film surfaces were studied using contact angle analysis and surface energy calculations by Fowke's approximation. X-ray photo-electron spectroscopy (XPS) was used to investigate the surface chemical composition of TiOx/PP films. The surface morphology of the obtained TiOx/PP films was investigated by scanning electron and transmission electron microscopy (SEM &TEM). Moreover, the surface topography of the material was analyzed by atomic force microscopy (AFM). The cytocompatibility of the TiOx/PP films was investigated via in vitro analysis (cell viability, adhesion and cytotoxicity) using NIH3T3 (mouse embryonic fibroblast) cells. Furthermore the antibacterial activities of TiOx/PP films were also evaluated against two distinct bacterial models namely Gram positive Staphylococcus aureus (S.aureus) and Gram negative Escherichia coli DH5α. (E.coli) bacteria. XPS results clearly indicate the successful incorporation of TiOx and oxygen containing polar functional groups on the surface of plasma treated PP films. Moreover the surface of modified PP films exhibited nano structured morphology, as confirmed by SEM, TEM and AFM. The physico-chemical changes have improved the hydrophilicity of the PP films. The in-vitro analysis clearly confirms that the TiOx coated PP films performs as good as the standard tissue culture plates and also are unlikely to impact the bacterial cell viability.
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Affiliation(s)
- K N Pandiyaraj
- Surface Engineering Laboratory, Department of Physics, Sri Shakthi Institute of Engineering and Technology, L&T by pass, Chinniyam Palayam (post), Coimbatore 641062, India.
| | - A Arun Kumar
- Surface Engineering Laboratory, Department of Physics, Sri Shakthi Institute of Engineering and Technology, L&T by pass, Chinniyam Palayam (post), Coimbatore 641062, India
| | - M C Ramkumar
- Surface Engineering Laboratory, Department of Physics, Sri Shakthi Institute of Engineering and Technology, L&T by pass, Chinniyam Palayam (post), Coimbatore 641062, India
| | - A Sachdev
- Nanobiotechnology Laboratory, Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - P Gopinath
- Nanobiotechnology Laboratory, Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India
| | - Pieter Cools
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Jozef Plateaustraat 22, 9000 Gent, Belgium
| | - N De Geyter
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Jozef Plateaustraat 22, 9000 Gent, Belgium
| | - R Morent
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Jozef Plateaustraat 22, 9000 Gent, Belgium
| | - R R Deshmukh
- Department of Physics, Institute of Chemical Technology, Matunga, Mumbai 400 019, India
| | - P Hegde
- William Mason High School, Mason 45040, USA
| | - C Han
- Department of Biomedical, Chemical and Environmental Engineering, University of Cincinnati, Cincinnati, OH 45221-0012, USA
| | - M N Nadagouda
- Center for Nanoscale Multifunctional Materials, Wright State University, Dayton, OH 45435, USA
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Schaeck M, De Swaef E, Van den Broeck W, Van Nevel S, Boon N, De Geyter N, Morent R, Demeestere K, Duchateau L, Coulombet C, Haesebrouck F, Decostere A. Germ-free sea bass Dicentrarchus labrax larval model: a valuable tool in the study of host-microbe interactions. Dis Aquat Organ 2016; 117:177-185. [PMID: 26758651 DOI: 10.3354/dao02950] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A thorough understanding of host-microbe interactions is crucial for more efficient disease management in the marine larviculture industry. As demonstrated in terrestrial animal research, gnotobiotic systems (involving animals cultured in germ-free conditions or inoculated with known microorganisms) are excellent tools to extend our understanding of the mechanisms involved in host-microbe interactions and allow the evaluation of new treatments for diseases. In this study, we introduce a germ-free European sea bass Dicentrarchus labrax larval model, independent of the continuous addition of antimicrobial agents. This model has an experimental set-up that allows addition of live feed to the larvae without compromising the germ-free status. This model will facilitate and render aquaculture research more effective in terms of mitigation fish larval diseases.
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Affiliation(s)
- M Schaeck
- Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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Abstract
The recent tremendous progress in understanding physical plasma phenomena, together with the development of new plasma sources, has put a growing focus on the application of nonthermal plasmas in the biomedical domain. Among several novel applications, the inactivation of bacteria by nonthermal plasmas (so-called plasma sterilization) is particularly interesting. This introductory review provides a summary of the current status of this emerging research field. In addition to the inactivation of bacteria on nonliving surfaces, this review also focuses on the sterilization of living surfaces, such as animal and human tissues. Clearly, nonthermal plasmas have undoubtedly great potential as a novel method for low-temperature sterilization.
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Affiliation(s)
- N. De Geyter
- Research Unit Plasma Technology, Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, 9000 Gent, Belgium
| | - R. Morent
- Research Unit Plasma Technology, Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, 9000 Gent, Belgium
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Jacobs T, Carbone E, Morent R, De Geyter N, Reniers F, Leys C. Surface modification of polymer films with a remote atmospheric pressure d.c. glow discharge: influence of substrate location. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3319] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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De Geyter N, Morent R, Leys C. Surface characterization of plasma-modified polyethylene by contact angle experiments and ATR-FTIR spectroscopy. SURF INTERFACE ANAL 2008. [DOI: 10.1002/sia.2611] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Morent R, De Geyter N, Leys C, Gengembre L, Payen E. Comparison between XPS- and FTIR-analysis of plasma-treated polypropylene film surfaces. SURF INTERFACE ANAL 2008. [DOI: 10.1002/sia.2619] [Citation(s) in RCA: 206] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Morent R, Dewulf J, Steenhaut N, Leys C, Van Langenhove H. Hybrid Plasma-Catalyst System for the Removal of Trichloroethylene in Air. ACTA ACUST UNITED AC 2006. [DOI: 10.1515/jaots-2006-0108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractNon-thermal plasmas are innovative and promising tools with respect to end-of-pipe treatment of waste gases. Among other features, they allow decomposition of low concentrations of volatile organic compounds in air streams at atmospheric pressure. In this paper, a plasma-catalytic hybrid system for the removal of trichloroethylene (TCE) in dry air is discussed. A pin-to-mesh electrode concept is used to obtain a positive corona discharge. A packed bed of TiO
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Morent R, Dewulf J, Vertriest R, Leys C, Van Langenhove H. VOC abatement by means of atmospheric pressure plasmas. Meded Rijksuniv Gent Fak Landbouwkd Toegep Biol Wet 2001; 66:341-4. [PMID: 15954316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Affiliation(s)
- R Morent
- Ghent University, Faculty of Engineering, Department of Applied Physics -Research Unit Plasma Technology, Rozier 44, B-9000 Ghent, Belgium
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