Streptococcus Sanguis Biofilm Architecture and Its Influence on Titanium Corrosion in Enriched Artificial Saliva
文献类型：期刊论文
| 作者 | Li L1; Li SL2; Zhu BL1; Li C3; Qu Q[*]2; Zuo LM2; He Y[2]2 |
| 刊名 | Materials
 |
| 出版日期 | 2017 |
| 卷号 | 10期号:X页码:e255 |
| 关键词 | titanium S. sanguis pitting corrosion artificial saliva corrosion mechanism |
| 通讯作者 | quqing@ynu.edu.cn |
| 英文摘要 | Bacteria biofilm formation on metals is well-known, while biofilm architecture varies under different conditions. To date, few studies have determined the possible contribution to corrosion of titanium made by biofilm architecture. We investigated the interaction between the oral Streptococcus sanguis biofilm architecture and its influence on titanium corrosion in enriched artificial saliva using electrochemical methods and microscopic study. Patchy biofilms were observed on titanium surface after being immersed in solution containing S. sanguis. The thickness and size of the patchy biofilms increased with an increase of immersion time. The extensive pits were clearly observed by scanning electron microscopy, showing that adsorption of S. sanguis on titanium promoted the localized corrosion. The electrochemical results indicated that the corrosion rates were clearly accelerated in the presence of S. sanguis. The low icorr and high Rt in the first 48 h indicated that a typical passive behavior still remained. Our study showed that the pitting corrosion of titanium was mainly attributed to the formation of a self-catalytic corrosion cell by the co-effect of patchy biofilm and organic acid secreted by S. sanguis. |
| 资助信息 | This work was financially supported by the Chinese Natural Science Foundation under Grant No. 51361028, 51161025, 51661033 and 31660538. |
| 源URL | [http://159.226.149.26:8080/handle/152453/11021]  |
| 专题 | 管理、支撑部门_大型仪器中心 |
| 作者单位 | 1.State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650091, China 2.School of Chemical Science and Technology, Yunnan University, Kunming 650091, China 3.Public Technical Service Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China |
| 推荐引用方式 GB/T 7714 | Li L,Li SL,Zhu BL,et al. Streptococcus Sanguis Biofilm Architecture and Its Influence on Titanium Corrosion in Enriched Artificial Saliva[J]. Materials,2017,10(X):e255. |
| APA | Li L.,Li SL.,Zhu BL.,Li C.,Qu Q[*].,...&He Y[2].(2017).Streptococcus Sanguis Biofilm Architecture and Its Influence on Titanium Corrosion in Enriched Artificial Saliva.Materials,10(X),e255. |
| MLA | Li L,et al."Streptococcus Sanguis Biofilm Architecture and Its Influence on Titanium Corrosion in Enriched Artificial Saliva".Materials 10.X(2017):e255. |
入库方式： OAI收割
来源：昆明动物研究所
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