Recent topic of discussion on dental implants revolves around differences in titanium surface topography. According to previous studies, different chemical or mechanical processing of titanium surface would elicit diverse cell or tissue reactions. Processes such as sandblasting, acid etching, or the even newer titanium oxide surface, render to excite more osteoblasts than the previous machined ...

Black mineral sands are widely used to obtain titanium dioxide, titanium, and, more recently, a variety of iron–titanium oxide nanostructures. Highly corrosive acids or alkalis commonly employed for this purpose. Hence, it is desirable find eco-friendly ways process these minerals, deriving high-added value materials. In study, an Ecuadorian sand precursor (0.6FeTiO3?0.4Fe2O3 solid solution) wa...

The straightforward modification of commercial hexafluorotitanic acid with organic derivatives containing a tetraalkylammonium cation produced stable precursor solutions with only a small fraction of water, which were then used as a reaction medium for the synthesis of nanocrystalline TiO(2).

This study examined the possible changes in the bioactivity of titanium surfaces during their aging and investigated the effect of ultraviolet (UV) light treatment during the age-related change of titanium bioactivity. Rat bone marrow-derived osteoblastic cells were cultured on new titanium disks (immediately after either acid-etching, machining, or sandblasting), 4-week-old disks (stored after...

Nano-sized titanium dioxide TiO2 powder was prepared by new wet chemical route from its precursor Titanium (IV) chloride (TiCl4) as precursor with isopropoxy alcohol in presence of nitric acid under ambient condition. Their morphologies, phase compositions and components of the TiO2 nanoparticles were characterized by transmission electron ...

Polymethylhydrosiloxane, when combined with titanium(IV) isopropoxide, provided a convenient system for the conversion of esters to the corresponding primary alcohols in the presence of a wide range of functional groups. Reactions were carried out as mixtures of the neat reaction components; work-up with aqueous alkaline THF afforded primary alcohols in good to excellent yields. The system tole...

Although offering superior resistance to corrosion, titanium is unable to withstand discoloration with exposure to peroxide or fluoride. The mechanism of this discoloration, however, remains to be clarified. The purpose of this study was to investigate the mechanism underlying discoloration of titanium with immersion in peroxide- or fluoride-containing solutions based on electrochemical quartz ...

Titanium, which has excellent strength and toughness characteristics, is increasingly used in the aerospace field. Among titanium alloys for body parts, more than 80 % are Ti-6Al-4V with a tensile of 931 MPa. The spark plasma sintering (SPS) method solidification molding powder manufactured by mechanical milling (MM) method, at low temperature short time. This avoids coarsening fine crystal gra...

The effect of the neutral surfactant dodecylamine and octadecylamine on the synthesis of TiO2-based nanostructures by the treatment of anatase with NaOH under hydrothermal conditions in the temperature range 120-150 degrees C and different reaction times was investigated. The products analyzed by electron microscopy, X-ray diffraction, FT-IR and elemental analysis contains--depending of the ami...