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IR@PKUHSC  > 北京大学口腔医学院  > 口腔颌面外科  > 期刊论文
学科主题: 口腔医学
题名:
Tantalum Nitride-Decorated Titanium with Enhanced Resistance to Microbiologically Induced Corrosion and Mechanical Property for Dental Application
作者: Zhang, Yifei1,2; Zheng, Yunfei1,2; Li, Yongliang1,2; Wang, Lixin4; Bai, Yanjie5,6; Zhao, Qiang5,6; Xiong, Xiaoling1; Cheng, Yan3; Tang, Zhihui2; Deng, Yi3; Wei, Shicheng1,2,3
刊名: PLOS ONE
发表日期: 2015-06-24
DOI: 10.1371/journal.pone.0130774
卷: 10, 期:6
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
关键词[WOS]: THIN-FILMS ; PURE TITANIUM ; BACTERIAL ADHESION ; BIOFILM FORMATION ; POROUS TANTALUM ; IMPLANT FAILURE ; SURFACE ; BEHAVIOR ; COATINGS ; ALLOYS
英文摘要:

Microbiologically induced corrosion (MIC) of metallic devices/implants in the oral region is one major cause of implant failure and metal allergy in patients. Therefore, it is crucial to develop practical approaches which can effectively prevent MIC for broad clinical applications of these materials. In the present work, tantalum nitride (TaN)-decorated titanium with promoted bio-corrosion and mechanical property was firstly developed via depositing TaN layer onto pure Ti using magnetron sputtering. The microstructure and chemical constituent of TaN coatings were characterized, and were found to consist of a hard fcc-TaN outer layer. Besides, the addition of TaN coatings greatly increased the hardness and modulus of pristine Ti from 2.54 +/- 0.20 to 29.88 +/- 2.59 GPa, and from 107.19 +/- 6.98 to 295.46 +/- 19.36 GPa, respectively. Potentiodynamic polarization and electrochemical impedance spectroscopy studies indicated that TaN coating exhibited higher MIC resistance in comparison to bare Ti and TiN-coated coating in two bacteria-containing artificial saliva solutions. Moreover, the biofilm experiment showed that the TaN-decorated Ti sample possessed good antibacterial performance. The SEM and XPS results after biofilm removal demonstrated that TaN film remained its integrity and stability, while TiN layer detached from Ti surface in the bio-corrosion tests, demonstrating the anti-MIC behavior and the strong binding property of TaN coating to Ti substrate. Considering all these results, TaN-decorated Ti material exhibits the optimal comprehensive performance and holds great potential as implant material for dental applications.

语种: 英语
所属项目编号: 30973317
项目资助者: Natural Science Foundation of China ; Peking University&prime ; s 985 Grant
WOS记录号: WOS:000356932500123
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/63671
Appears in Collections:北京大学口腔医学院_口腔颌面外科_期刊论文

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作者单位: 1.Peking Univ, Sch & Hosp Stomatol, Lab Interdisciplinary Studies, Dept Oral & Maxillofacial Surg, Beijing 100081, Peoples R China
2.Peking Univ, Sch & Hosp Stomatol, Dent Ctr 2, Beijing 100081, Peoples R China
3.Peking Univ, Acad Adv Interdisciplinary Studies, Ctr Biomed Mat & Tissue Engn, Beijing 100871, Peoples R China
4.Capital Med Univ, Beijing Shijitan Hosp, Dept Stomatol, Beijing 100038, Peoples R China
5.China Med Univ, Aviat Gen Hosp, Dept Stomatol, Beijing 100012, Peoples R China
6.Chinese Acad Sci, Beijing Inst Translat Med, Beijing 100012, Peoples R China

Recommended Citation:
Zhang, Yifei,Zheng, Yunfei,Li, Yongliang,et al. Tantalum Nitride-Decorated Titanium with Enhanced Resistance to Microbiologically Induced Corrosion and Mechanical Property for Dental Application[J]. PLOS ONE,2015,10(6).
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