كليدواژه :
Titanium , medical applications , anodizing , etching , nanotechnology , nanotubes
چكيده فارسي :
Titanium and the alloys it can be made into have a wide variety of uses, particularly in the aerospace, high-tech devices, automobile, medical, and shipping industries. One could say that the medical industry places a particularly heavy emphasis on the utilization of these alloys. Alterations in titanium concentrations have the potential to enhance many of the properties necessary for medical applications. Titanium has a number of advantageous properties, including high biocompatibility, osteogenesis, which rotted from its bio-neutral surfaces, great strength, toughness, creep resistance, and corrosion resistance, as well as a low elastic modulus. The alloy known as Ti-6Al-4V has the highest level of demand. The aluminum and vanadium in the Ti-6Al-4V alloy, on the other hand, could be toxic to the cells in the area or cause the implant to fail because the alloy doesn t integrate well with the bone. For this reason, and with the intention of enhancing the bioactivity of this metal, according to the principles stated for the construction of these surfaces, the presence of low surface energy and roughness of the dynasty on the surface, micrometer roughness, and nanometer porosity are created by soaking operations in an aqueous solution of hydrofluoric acid (HF), followed by anodizing in an aqueous solution of HF and NH4F to create optimal nanotubes on the titanium surface. When it comes to anodizing, there are a number of factors that can have an effect on the surface of nanostructures. Some of these factors include time, voltage, the pH of the electrolyte, the electrolyte component concentration of acid, and so on. All of these factors have the potential to alter the morphological structure of the surface, including the size of the pores, their shape, the depth of the porosity, and whether or not the surface is hydrophobic or hydrophilic. As a result, surface modification has the potential to alter bone-to-implant contact (BIC) and the osseointegration of the implant. In this investigation, modifying the variables allows us to obtain a variety of surface morphologies. After analyzing each sample using field emission scanning electron microscopy to reveal the various surface modifications, the image-processing software ImageJ was used to determine the porosity diameter. Following that, the micro-roughness of the surfaces was calculated and contrasted with other approaches. In conclusion, the bioactive measurement of all samples after SBF was observed by FESEM analysis, which showed the formation of sediments on the surface with various dimensions of micrometers and nanometers.
