کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
754999 895912 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nanocrystalline layer on the bearing surfaces of artificial hip implants induced by biotribocorrosion processes
ترجمه فارسی عنوان
لایه نانوکریستال بر روی سطوح تحمل ایمپلنت های مصنوعی چرکی ناشی از فرایندهای بیوتروبیکورزایی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی

Orthopedic prostheses are lubricated by a pseudosynovial fluid that contains proteins. Under regular movements, bearing surfaces would suffer wear and corrosion. More importantly, their interaction controls the material degradation process. Nanocrystalline layer was found on the surface of CoCrMo alloy surface after tribocorrosion tests. Tribocorrosion tests were taken in 0.9% NaCl and 0.9% NaCl with 1% bovine serum albumin (BSA) solution. Small angle X-ray Scattering was applied to measure the size distribution of the nano-crystals. As a general conclusion, proteins can absorb on prosthesis materials and act as a lubricant during sliding. The negative charge distribution on the material surface can promote the adsorption of protein. The average size of the nano-crystals on the bearing surface was 5 nm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosurface and Biotribology - Volume 1, Issue 2, June 2015, Pages 130–134
نویسندگان
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