Low-temperature air plasma modification of chitosan-coated PEEK biomaterials |
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| Affiliation: | 1. Department of Interfacial Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska University, Lublin, Poland;2. Department of Polymer Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, Lublin, Poland;1. Department of Chemistry, University of the Free State (Qwaqwa Campus), Private Bag X13, Phuthaditjhaba, 9866, South Africa;2. Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha, Czech Republic;3. Center for Advanced Materials, Qatar University, PO Box 2713, Doha, Qatar;1. School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2. Department of Orthopedics, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200240, China;3. Konca Solar Energy Co. Ltd., Wuxi 214174, China;4. School of Materials, University of Manchester, Manchester M13 9PL, United Kingdom;1. Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi, Fukuoka, 812-8582, Japan;2. Division of Maxillofacial Diagnostic and Surgical Sciences, Section of Oral and Maxillofacial Surgery, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi, Fukuoka, 812-8582, Japan;3. Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-8-31, Midorigaoka, Ikeda, Osaka, 563-8577, Japan;4. Section of Bioengineering, Department of Dental Engineering, Fukuoka Dental College, 2-15-1 Tamura, Sawara, Fukuoka, 814-0193, Japan;1. Department of Chemistry, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore 54792, Pakistan;2. Department of Materials Science & Nanotechnology Engineering, TOBB University of Economics and Technology, Söğütözü Cad. 43, 06560 Ankara, Turkey;3. Gazi University, Life Sciences Application and Research Center, Gölbaşıi, 06830 Ankara, Turkey;4. Laboratory of Nanomedicine and Biomaterials, MIT-Harvard Center for Cancer Nanotechnology Excellence, BWH, 75 Francis Street, Boston, MA 02115, USA;1. Surface Engineering Laboratory, Department of Physics, Sri Shakthi Institute of Engineering and Technology, L&T by pass, Chinniyam Palayam (post), Coimbatore, 641062, India;2. Centro de Química- Física Molecular and Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, University of Lisbon, Portugal;3. Department of Physics, Institute of Chemical Technology, Matunga, Mumbai 400 019, India;4. Department of Chemistry, Chinese Culture University, Taipei 111, Taiwan;5. Reconstructive Science Unit, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia;1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China;2. University of Chinese Academy of Science, Beijing 100049, PR China;3. Department of Chemistry, Shanghai Normal University, Shanghai 200234, PR China |
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| Abstract: | Novel chitosan-coated PEEK biomaterials were prepared by air plasma modification. Low-temperature plasma effect on changes of specific thermal, mechanical and adhesive properties of polyetheretherketone (PEEK) was investigated. The topography and surface roughness of the prepared materials were determined using an optical profilometer. The wetting and energetic properties of biomaterials were studied by means of advancing and receding contact angles measurements and then apparent surface free energy (and its components) were evaluated applying the LWAB (Lifshitz–van der Waals Acid Base) theory and contact angle hysteresis model. After air plasma treatment a fairly hydrophobic character of PEEK was changed to strongly hydrophilic one. Significant differences in the wettability and thermal stability of samples were observed. However, hardly any differences in excellent mechanical properties were noticed. The profilometer images showed an increase in the surface roughness of PEEK modified surface due to the change of cross-link density, elasticity and formation of additional polar groups on the surface. Plasma treated polyetheretherketone surfaces had better adhesive features and stable chitosan coating was created. Modification by chitosan improved antibacterial properties, inherent haemostatics and polymer biocompatibility. These advantages allowed to obtain new attractive biomaterials from the same polymer differing in properties for a wide spectrum of applications, mainly regenerative medicine and orthopedic surgery. |
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| Keywords: | Low-temperature plasma Polyetheretherketone Chitosan coating Adhesive properties Wettability Contact angle |
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