北京大学医学部机构知识库
Advanced  
IR@PKUHSC  > 北京大学口腔医学院  > 期刊论文
学科主题: 口腔医学
题名:
Comparative study on corrosion resistance and in vitro biocompatibility of bulk nanocrystalline and microcrystalline biomedical 304 stainless steel
作者: 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
发表日期: 2011-07-01
DOI: 10.1016/j.dental.2011.03.009
卷: 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
所属项目编号: 30770580 ; 51041004 ; 2082010 ; 2007CB936103 ; NCET-07-0033
项目资助者: National Natural Science Foundation of China ; Natural Science Foundation of Beijing ; National Key Scientific Program-Nanoscience and Nanotechnology ; Program for New Century Excellent Talents in University
WOS记录号: WOS:000291033100011
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/57029
Appears in Collections:北京大学口腔医学院_期刊论文

Files in This Item:

There are no files associated with this item.


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

Recommended Citation:
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.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Nie, F. L.]'s Articles
[Wang, S. G.]'s Articles
[Wang, Y. B.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Nie, F. L.]‘s Articles
[Wang, S. G.]‘s Articles
[Wang, Y. B.]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  北京大学医学部 - Feedback
Powered by CSpace