کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7867176 1509153 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Oxygen-implanted induced formation of oxide layer enhances blood compatibility on titanium for biomedical applications
ترجمه فارسی عنوان
شکل گیری القا شده اکسیژن توسط لایه اکسید، تطبیق خون بر روی تیتانیوم را برای کاربردهای بیومدیک افزایش می دهد
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
چکیده انگلیسی
Titanium dioxide (TiO2) layers were prepared on a Ti substrate by using oxygen plasma immersion ion implantation (oxygen PIII). The surface chemical states, structure, and morphology of the layers were studied using X-ray photoelectron spectroscopy, X-ray diffraction, Raman microscopy, atomic force microscopy and scanning electron microscope. The mechanical properties, such as the Young's modulus and hardness, of the layers were investigated using nanoindentation testing. The Ti4 + chemical state was determined to be present on oxygen-PIII-treated surfaces, which consisted of nanocrystalline TiO2 with a rutile structure. Compared with Ti substrates, the oxygen-PIII-treated surfaces exhibited decreased Young's moduli and hardness. Parameters indicating the blood compatibility of the oxygen-PIII-treated surfaces, including the clotting time and platelet adhesion and activation, were studied in vitro. Clotting time assays indicated that the clotting time of oxygen-PIII-treated surfaces was longer than that of the Ti substrate, which was associated with decreased fibrinogen adsorption. In conclusion, the surface characteristics and the blood compatibility of Ti implants can be modified and improved using oxygen PIII.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 68, 1 November 2016, Pages 523-529
نویسندگان
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