The work is focused on understanding relation between of ternary biofilms poly (vinyl alcohol) (PVA) – hydroxyapatite (HAP) – collagen gel (GC) surface properties and biocompatibility. As characterization methods, FTIR Spectrometry, static contact angle measurements, roughness analysis and cytotoxicity test for fibroblast growth were used. The hydrophilic=hydrophobic balance effect on fibroblast growth and proliferation is discussed taking into

This paper is focused in obtaining and characterization of a uniform HA coating by electrochemical method . FTIR spectroscopy was performed in order to determine structure of electrochemical deposition and to identify the functional groups. The observation of the samples morphology were carried out with an environmental Scanning Electron Microscopy (ESEM) enabled us to observe the calcium phosphate deposition process. Electrochemical impedance spectroscopy

In this paper the electrochemical behavior of the titanium and Ti-6Al7Nb in artificial saliva ( Tani&Zucchi and Carter-Brugirard)ion release tests and in vitro biocompatibility of human osteoblasts were studied.The total quantity of ions released in the artificil saliva and corrosion rates are very low,proving a very good corrosion resistance and very low toxicity. The in vitro citotoxicity of Ti-6Al-7Nb alloy was evaluated on the basis of cell morphology

Monitoring of the titanium, Ti–5Al–4V, Ti–6Al–4Fe implant materials — Ringer 1 and Ringer 2 solutions interface for long term was studied. In Ringer 1 solution (with high chloride ion content) all biomaterials present self-passivation.On Ti–6Al–4Fe alloy,the breakdown of the passive film was registered but at high pitting potential; pitting protection potential is very noble and can not be reached in human fluids.In Ringer 2 solution

This study aims at evaluating the biocompatibility of titanium surfaces modified according two different ways: (i) deposition of a bio-inert, thin film of rutile TiO2 by chemical vapour deposition (MOCVD), and (ii) biochemical treatment with collagen gel, in order to obtain a bio-interactive coating. Behind the comparison is the idea that either the bio-inert or the bio-active coating has specific advantages when applied to implant treatment, such