Invited Speaker

Karol Kyzioł

Associate Professor, Head of Department of Physical Chemistry and Modelling, Head of Laboratory of Vapour Deposited Materials, Faculty of Materials Science and Ceramics, AGH University of Science and Technology
Poland

Speech Title: Impact of plasma-based processes in surface modification of titanium alloys and polymeric substrates for applications in orthopaedics

Abstract: Aims: The work presents the obtained results of the selected physicochemical, corrosion and biological properties of Ti6Al7Nb, NiTi and PE substrate after surface modification. During the experiments the PE CVD (Plasma Enhanced Chemical Vapour Deposition) method, as well as deposition of biopolymers (based chitosan coatings (CS)) using the immersion method was applied.
Methods: In the experimental part the different type and multi-system, based on DLC structure, were investigated. Additionally, the selected substrates were chemically treated or functionalized by plasmochemical process before coatings deposition. Typical techniques for materials engineering such as scanning electron microscopy with EDS analysis, AFM, optics profilometry, IR spectroscopy, ICP-MS and nanoindentation method were applied. Moreover, biological activity was also studied.
Results: It can be concluded that the obtained biopolymeric coatings (CS with or without Me_NPs) provide an efficient barrier to impede the out-diffusion of titanium and nickel ions. In the case of PE substrate modified by DLC:N/DLC multi-layers we observed the positive influence on the mechanical properties and biological activity.
Conclusions: In the case of PE and Ti-based substrates, this is the main goal of current scientific research focused on surface modifications to increase its safe medical application.
Acknowledgements: This work has been supported by Polish National Center for Science, NCN, grant decision DEC-2017/01/X/ST8/00886.

Biography: Karol Kyzioł is Professor at AGH in the field of Materials Engineering and Head of Laboratory of Vapour Deposited Materials.His academic achievements consist of 107 published scientific publications, including 28 from the base of Journal Citation Reports (including 27 which were published after gaining his doctoral degree), the total IF of which (according to the year of publishing) is ca. 70. Prof. Kyzioł is also the co-author of two book chapters, "Handbook of Composite from Renewable Materials", Vol 4, Functionalization, 2017, Published by Wiley Scrivener and "Surface functionalization with biopolymers via plasma-assisted surface grafting and plasma-induced graft polymerization – materials for biomedical application" in vol. "Biopolymer Grafting: Applications", 2018, Elsevier.
Additionally, the results of his research were presented at 41 scientific conferences (including 30 international ones). He is a co-author of two patent (PL – 221932 B1, 2016) concerning a method of improving the mechanical properties of Al alloys and P – 410079, 2020) which includes the use of a plasma chemical method to modify on lays for bumpers.
His conducted scientific research received several awards for scientific achievement from the Rector of AGH UST (2013, 2014, 2016). Furthermore, the results of the conducted studies concerning aluminum treatment (in cooperation with TUL) were distinguished, inter alia, at the international exhibition INTEX in Kuala Lumpur (Malaysia, 2012). Additionally, at this exhibition the studies received a gold medal and during the exhibitions in Seul (Korea, 2012) and Cluj-Napoca (Romania, 2013) a gold and bronze medal, respectively.