VITROCERAMIC THIN FILM COATINGS DEPOSITED ON METALLIC SUBSTRATES BASED ON TI BY LASER ABLATION

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Pulsed laser deposition (PLD) method is used to deposit bioceramic thin film coatings on metallic substrates. In our research, we used this method to deposit abiovitroceramic thin film coating on titanium or Ti-Zr alloy substrates. The composition of the oxidic targets was selected from SiO2-CaO-P2O5-(CaF2) systems and the corresponding masses were prepared using the sol-gel method and then pressed and thermal treated at 1300°C for 2 h, in oxidative atmosphere. The depositions by PLD method were performed in oxygen-rich atmosphere (100 mTorr) and the metallic substrates were heated at 400°C. The films were analysed by different experimental techniques: X-ray diffraction, electron microscopy (scanning - SEM, EDX and transmission - HRTEM, SAED) and infrared spec Гены & Клетки Том XII, № 3, 2017 12 материалы III национального конгресса по регенеративной медицине troscopy coupled with optical microscopy. Also, they were biologically tested by in-vitro tests (MTT cell proliferation assay, optical and fluorescence microscopy) and determination of the contact angle. The results indicated a high biocompatibilty of these materials regardless of the metallic substrate, demonstrating their potential use for biomedical applications.