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| NanoBioFit – Nanoštrukturované, funkčne navrstvené a bio-inšpirované 3D iplantáty na báze titánu | |
| Nanostructured, functionally graded, and bioinspired 3D Ti-based implants | |
| Program: | SRDA |
| Project leader: | doc. Ing. Hnatko Miroslav, PhD. |
| Annotation: | In general, patient response to implants is strongly dependent on the host tissue ─ implant interface because processes such as healing, osteolysis, and infection take place specifically at this interface. Therefore, modification and tailoring of transplants surface properties are attractive methods to trigger and accelerate healing processes and to reduce the possibility of osteolysis and infection.The main goal of the project is oriented towards improving the adhesion of bio-coatings on titanium alloy surfaces and ensure the enhancement of bio-compatibility of the bio-inert implants. Therefore, the main goal will be divided into two interconnected parts.The first part will be devoted to electropolishing of titanium and titanium-based alloys. This electrochemical surface treatment is generally considered as one of the most efficient, convenient and adaptable technique for the improvement of the physical and mechanical surface properties of materials.The second part of the project will deal with the preparation of bio-compatible surface layer on Ti implants by:- the formation of TiO2 nanotube arrays by anodic oxidation of Ti-based alloy – electrophoretic deposition (EPD) of coatings based on bio-composites such as polymers doped with various bioactive glass prepared by glass melting or sol-gel process (with possible antibacterial and inflammatory effect).Introduction of the convenient surface treatment process together with highly bioactive coating materials on bioinert Ti-based 3D implants will allow us to provide personalized, well-fitting implants without the need of additional medical treatment. Significant enhancement of patient comfort together with the reduction of the medical costs will be the main benefits of the presented project. |
| Duration: | 1.8.2021 – 30.6.2025 |
| Elektromagnetické tienenie funkčne gradientných vrstevnatých kompozitov na báze SiC s prídavkom grafénu a uhlíkových nanorúrok | |
| Electromagnetic shielding properties of functionally graded layered SiC-graphene and SiC-carbon nanotubes composites | |
| Program: | VEGA |
| Project leader: | Ing. Hanzel Ondrej, PhD. |
| Annotation: | The main goal of this project is preparation of layered SiC-carbon nanostructure composites with highelectromagnetic shielding effectiveness. The research will be focus on study of effect of carbon nanostructures (graphene nanoplatelets and carbon nanotubes) addition into the silicon carbide matrix and arrangement of functional layers on electromagnetic shielding effectiveness and functional properties of layered composites. In order to achieve project objectives, research focused on preparation of composite granulated powders with homogeneous distribution of graphene nanoplatelets (GNPs) and carbon nanotubes (CNTs) and their subsequent effective sintering will be necessary. Composition and arrangement of functional layers of composite layered materials with gradient content of carbon nanostructures will be optimized in order to achieve high electromagnetic shielding effectiveness. Functional and mechanical properties of such prepared layered composites will be studied as well. |
| Duration: | 1.1.2021 – 31.12.2024 |