IR@PKUHSC  > 北京大学口腔医学院
学科主题口腔医学
In vitro corrosion and cytotoxicity on microcrystalline, nanocrystalline and amorphous NiTi alloy fabricated by high pressure torsion
Nie, F. L.1,2; Zheng, Y. F.1,2,3; Cheng, Y.3; Wei, S. C.3,4; Valiev, R. Z.5
关键词Ni50.2Ti49.8 alloy Nanocrystalline Amorphous Metals and alloys Corrosion and ion release Cytotoxicity
刊名MATERIALS LETTERS
2010-04-30
DOI10.1016/j.matlet.2010.01.081
64期:8页:983-986
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]Materials Science ; Physics
关键词[WOS]BIOCOMPATIBILITY
英文摘要

Bulk nanocrystalline and amorphous Ni50.2Ti49.8 alloy samples were successfully prepared from commercial microcrystalline Ni50.2Ti49.8 alloy discs by high pressure torsion (HPT) technique. Then their corrosion resistance, surface wettability and cytotoxicity were further studied from the viewpoint of biomaterials. In both Hank′s solution and artificial saliva, bulk nanocrystalline and amorphous Ni50.2Ti49.8 alloys showed significantly higher pitting corrosion potentials than that of microcrystalline Ni50.2Ti49.8 alloy. Meanwhile, the amount of Ni ion release after immersion in Hank′s solution was minor, far below the threatening threshold of daily diet. Murine fibroblast and osteoblast cell lines were indirectly co-cultured with experimental sample extracts, indicating no cytotoxicity. Amongst all samples, the nanocrystalline Ni50.2Ti49.8 shows promising as best biomaterial candidate for its good combination of mechanical property, corrosion resistance and cytocompatibility. (C) 2010 Elsevier B.V. All rights reserved.

语种英语
WOS记录号WOS:000276138400028
项目编号30770580 ; 2007CB936103
资助机构National Natural Science Foundation of China ; National Key Scientific Program-Nanoscience and Nanotechnology
引用统计
被引频次:29[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/60786
专题北京大学口腔医学院
作者单位1.Peking Univ, Coll Engn, Dept Adv Mat & Nanotechnol, Beijing 100871, Peoples R China
2.Peking Univ, Coll Engn, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China
3.Peking Univ, Ctr Biomed Mat & Tissue Engn, Acad Adv Interdisciplinary Studies, Beijing 100871, Peoples R China
4.Peking Univ, Sch Stomatol, Dept Oral & Maxillofacial Surg, Beijing 100081, Peoples R China
5.Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa, Russia
推荐引用方式
GB/T 7714
Nie, F. L.,Zheng, Y. F.,Cheng, Y.,et al. In vitro corrosion and cytotoxicity on microcrystalline, nanocrystalline and amorphous NiTi alloy fabricated by high pressure torsion[J]. MATERIALS LETTERS,2010,64(8):983-986.
APA Nie, F. L.,Zheng, Y. F.,Cheng, Y.,Wei, S. C.,&Valiev, R. Z..(2010).In vitro corrosion and cytotoxicity on microcrystalline, nanocrystalline and amorphous NiTi alloy fabricated by high pressure torsion.MATERIALS LETTERS,64(8),983-986.
MLA Nie, F. L.,et al."In vitro corrosion and cytotoxicity on microcrystalline, nanocrystalline and amorphous NiTi alloy fabricated by high pressure torsion".MATERIALS LETTERS 64.8(2010):983-986.
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