کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7869933 | 1509178 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cytocompatibility evaluation and surface characterization of TiNi deformed by high-pressure torsion
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Cytocompatibility evaluation and surface characterization of TiNi deformed by high-pressure torsion Cytocompatibility evaluation and surface characterization of TiNi deformed by high-pressure torsion](/preview/png/7869933.png)
چکیده انگلیسی
Effect of high-pressure torsion (HPT) deformation on biocompatibility and surface chemistry of TiNi was systematically investigated. Ti-50Â mol% Ni was subjected to HPT straining for different numbers of turns, NÂ =Â 0.25, 0.5, 1, 5 and 10 at a rotation speed of 1Â rpm. X-ray photoelectron spectroscopy observations after 7Â days of cell culture revealed the changes in the surface oxide composition, enrichment of Ti and detection of nitrogen derived from organic molecules in the culture medium. Plating efficiency of L929 cells was slightly increased by HPT deformation though no significant difference was observed. Albumin adsorption was higher in HPT-deformed samples, while vitronectin adsorption was peaked at NÂ =Â 1. HPT deformation was also found to effectively suppress the Ni ion release from the TiNi samples into the cell culture medium even after the low degree of deformation at NÂ =Â 0.25.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 43, 1 October 2014, Pages 411-417
Journal: Materials Science and Engineering: C - Volume 43, 1 October 2014, Pages 411-417
نویسندگان
Dayangku Noorfazidah Awang Shri, Koichi Tsuchiya, Akiko Yamamoto,