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Relate the oxide layer and biocompatibility of titanium.
The compatibility of a metal with its host environment depends on its resistance to biodegradation and on the degree of cytotoxicity of its products of corrosion. Surface properties of a biomaterial are an extremely critical aspect of biocompatibility.Applied Basic Sciences Passive reactions on metals possessing a high reactive surface energy that interacts with oxygen, forms passivated surface oxides. Titanium on exposure to air forms several oxides, such as TiO, TiO2, Ti2O3, with three different crystal structures (anastase, rutile, and brookite). Mainly it forms a surface coating of titanium oxide (TiO2) which is about 10 to 100 A, thus providing a stable ceramic interface on which mineralizing bone matrix is deposited. This oxide surface provides an initial 5200 Armstrong reactive surface that becomes coated by plasma proteins (especially fibro nectin and vitronectin) at the time of implant placement.It is from the biological inertness of this oxide surface that implant derive the important property of biocompatibility.
Nicotinic acid (Niacin) Niacin refers to both nicotinic acid and its amide derivative. Nicotinic acid occurs as white or almost white crystals or as a crystalline powder of the
Stomata - Water Loss The cross-section of a leaf shown in Figure shows the position of a typical stoma (plural stomata) which however, differs from species to species, with re
Explain the process by which growth factors promote angiogenesis. Add citation or links.
Lingual nerve and artery It is the branch of mandibular nerve which enters the oral cavity above the posterior edge of the mylohyoid muscle close to the 3 rd molar region proc
The following series of nucleotide bases forms part of a DNA molecule: T A C T T A T G A C A C A G G A G G A C T a) Convert this string of bases that would be found on the corresp
Q. What is the structure that to maintains identical chromatids bound? The structure that to maintains identical chromatids bound is the centromere.
Q. What are Diastolic Compressive Forces? Coronary perfusion pressure equal to pressure gradient between the coronary arteries and the pressure in LV in diastole. When coronary
What is complete transposition of arteries? Complete transposition of the great arteries (dTGA): The atria and ventricles are connected appropriately i.e., the right atrium dra
Define requirements of Iodine during pregnancy period? You would be already aware that maternal iodine deficiency leads to cretinism in the off spring. Hence, the material diet
ENERG Y TRANSFORMATION - During photosynthesis radiant energy is converted into chemical energy by green plants. In biluminiscent organisms .e.g glow worm, noctilluca &
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