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The influence of modified TiO2 nanotubes on biointerfacial interaction
Bílek, Ondřej ; Kočí,, Kamila (oponent) ; Hlaváček,, Antonín (oponent) ; Fohlerová, Zdenka (vedoucí práce)
Over the past few years, titanium dioxide nanotubes have become increasingly important in biomedicine. As a biocompatible nanostructured surface, it finds the potential for its application especially in the field of implant applications. The theoretical part of this thesis, therefore, deals with options for TiO2 nanotube preparation, and their use as a biomedical material. The review of conducted studies includes bare, surface-modified and doped nanotubes. The experimental part discusses titanium dioxide nanotubes, which are prepared from titanium by a one-step anodic oxidation method in an organic electrolyte. Titanium-sputter-deposited silicon wafers and titanium foils are used as a substrate. The initially amorphous nanotubes are annealed, and subsequently modified with selenium and silver nanoparticles. The prepared structures are studied in terms of surface properties, and biological interactions with selected tissue cells (MG-63, NIH-3T3) and bacteria (E. coli, P. aeruginosa S. aureus). The final part of experimental work is dedicated to brief comparison of selenium and silver nanoparticle modified TiO2 nanotubes. The main aim of this thesis is to extend the knowledge regarding the bio-interface formed by adherent cell lines, bacterial cells, and selenium/silver modified TiO2 nanotubes.
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The influence of modified TiO2 nanotubes on biointerfacial interaction
Bílek, Ondřej ; Kočí,, Kamila (oponent) ; Hlaváček,, Antonín (oponent) ; Fohlerová, Zdenka (vedoucí práce)
Over the past few years, titanium dioxide nanotubes have become increasingly important in biomedicine. As a biocompatible nanostructured surface, it finds the potential for its application especially in the field of implant applications. The theoretical part of this thesis, therefore, deals with options for TiO2 nanotube preparation, and their use as a biomedical material. The review of conducted studies includes bare, surface-modified and doped nanotubes. The experimental part discusses titanium dioxide nanotubes, which are prepared from titanium by a one-step anodic oxidation method in an organic electrolyte. Titanium-sputter-deposited silicon wafers and titanium foils are used as a substrate. The initially amorphous nanotubes are annealed, and subsequently modified with selenium and silver nanoparticles. The prepared structures are studied in terms of surface properties, and biological interactions with selected tissue cells (MG-63, NIH-3T3) and bacteria (E. coli, P. aeruginosa S. aureus). The final part of experimental work is dedicated to brief comparison of selenium and silver nanoparticle modified TiO2 nanotubes. The main aim of this thesis is to extend the knowledge regarding the bio-interface formed by adherent cell lines, bacterial cells, and selenium/silver modified TiO2 nanotubes.
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