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Comparative study on corrosion resistance and in vitro biocompatibility of bulk nanocrystalline and microcrystalline biomedical 304 stainless steel
Nie, F. L.1,2; Wang, S. G.3,4; Wang, Y. B.1,2; Wei, S. C.5,6,7; Zheng, Y. F.1,2,5
关键词Nanocrystalline 304ss Biocorrosion Ion Release Cytotoxicity
刊名DENTAL MATERIALS
2011-07-01
DOI10.1016/j.dental.2011.03.009
27期:7页:677-683
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Dentistry, Oral Surgery & Medicine ; Materials Science, Biomaterials
研究领域[WOS]Dentistry, Oral Surgery & Medicine ; Materials Science
关键词[WOS]STAINLESS-STEEL ; ORTHODONTIC WIRES ; ELECTROCHEMICAL CORROSION ; MECHANICAL-PROPERTIES ; ACID-SOLUTION ; ION RELEASE ; INGOT IRON ; BEHAVIOR ; TITANIUM ; SURFACE
英文摘要

Objectives. SUS 304 stainless steels have been widely used in orthodontics and implants such as archwires, brackets, and screws. The purpose of present study was to investigate the biocompatibility of both the commercial microcrystalline biomedical 304 stainless steel (microcrystalline 304ss) and novel-fabricated nanocrystalline 304 stainless steel (nanocrystalline 304ss).

Methods. Bulk nanocrystalline 304ss sheets had been successfully prepared by microcrystalline 304ss plates using severe rolling technique. The electrochemical corrosion and ion release behavior immersion in artificial saliva were measured to evaluate the property of biocorrosion in oral environment. The cell lines of murine and human cell lines from oral and endothelial environment were co-cultured with extracts to evaluate the cytotoxicity and provide referential evidence in vivo.

Results. The polarization resistance trials indicated that nanocrystalline 304ss is more corrosion resistant than the microcrystalline 304ss in oral-like environment with higher corrosion potential, and the amount of toxic ions released into solution after immersion is lower than that of the microcrystalline 304ss and the daily dietary intake level. The cytotoxicity results also elucidated that nanocrystalline 304ss is biologically compatible in vitro, even better than that of microcrystalline 304ss.

Significance. Based on the much higher mechanical and physical performances, nanocrystalline 304ss with enhanced biocorrosion property, well-behaved in vitro cytocompatibility can be a promising alternative in orthodontics and fixation fields in oral cavity. (C) 2011 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.

语种英语
WOS记录号WOS:000291033100011
引用统计
被引频次:35[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/400002259/57029
专题北京大学口腔医学院
作者单位1.Peking Univ, Hosp Stomatol, Beijing 100871, Peoples R China
2.Peking Univ, Sch Stomatol, Beijing 100871, Peoples R China
3.Peking Univ, Dept Adv Mat & Nanotechnol, Coll Engn, Beijing 100871, Peoples R China
4.Peking Univ, State Key Lab Turbulence & Complex Syst, Coll Engn, Beijing 100871, Peoples R China
5.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
6.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
7.Peking Univ, Ctr Biomed Mat & Tissue Engn, Acad Adv Interdisciplinary Studies, Beijing 100871, Peoples R China
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GB/T 7714
Nie, F. L.,Wang, S. G.,Wang, Y. B.,et al. Comparative study on corrosion resistance and in vitro biocompatibility of bulk nanocrystalline and microcrystalline biomedical 304 stainless steel[J]. DENTAL MATERIALS,2011,27(7):677-683.
APA Nie, F. L.,Wang, S. G.,Wang, Y. B.,Wei, S. C.,&Zheng, Y. F..(2011).Comparative study on corrosion resistance and in vitro biocompatibility of bulk nanocrystalline and microcrystalline biomedical 304 stainless steel.DENTAL MATERIALS,27(7),677-683.
MLA Nie, F. L.,et al."Comparative study on corrosion resistance and in vitro biocompatibility of bulk nanocrystalline and microcrystalline biomedical 304 stainless steel".DENTAL MATERIALS 27.7(2011):677-683.
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