The Mechanical Analysis of the Biofilm Streamer Nucleation and Geometry Characterization in Microfluidic Channels
文献类型：期刊论文
| 作者 | Wang XL; Hao MD; Du X ; Wang GQ; Matsushita J
|
| 刊名 | COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE
 |
| 出版日期 | 2016 |
| 页码 | 7819403 |
| 通讯作者邮箱 | xiaoling@me.ustb.edu.cn |
| ISSN号 | 1748-670X |
| 关键词 | Gradient structure Strain hardening Ductility Transformation-induced plasticity Strain partitioning |
| 通讯作者 | Wang, XL (reprint author), Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China. ; Wang, XL (reprint author), Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA. ; Wang, XL (reprint author), Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech, Beijing 100190, Peoples R China. |
| 产权排序 | [Wang, Xiaoling; Hao, Mudong; Du, Xin; Wang, Guoqing] Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China; [Wang, Xiaoling] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA; [Wang, Xiaoling] Chinese Acad Sci, Inst Mech, Lab Nonlinear Mech, Beijing 100190, Peoples R China; [Matsushita, Jun-ichi] Tokai Univ, Dept Mat Sci, Hiratsuka, Kanagawa 2591292, Japan |
| 中文摘要 | Bacteria can form biofilm streamers in microfluidic channels with various geometries. Experiments show that the streamer geometry, such as its shape or thickness, depends on the fluid velocity and the geometry and curvature of the microfluidic channel. In the paper, a mechanical analysis of the flow field is made in different channels, which shows that the secondary flow in the channel is the reason for streamer nucleation and that the shear stress distribution decides the streamer geometry including shape and thickness. Through a finite elements simulation, we obtain the secondary flow forming positions in both static and rotating channels: positions that are the location of nucleation of the streamer. Thick or wide biofilm streamers occur at the points of minimum shear stress in static channels. Furthermore, in rotating channels, spiral-like streamers form, due to the helical shape of the minimum shear stress distribution. The findings may allow the prevention of biofilm formation and also the removal of bacteria adhered onto certain surfaces in channels with small cross sections. The analysis also indicates how one can obtain desirable biofilm streamers by control of the channel geometry and the loading conditions. |
| 类目[WOS] | Mathematical & Computational Biology |
| 分类号 | Q4 |
| 研究领域[WOS] | Mathematical & Computational Biology |
| 关键词[WOS] | Gradient structure ; Strain hardening ; Ductility ; Transformation-induced plasticity ; Strain partitioning |
| 收录类别 | SCI |
| 原文出处 | http://dx.doi.org/10.1155/2016/7819403 |
| 语种 | 英语 |
| WOS记录号 | WOS:000377886400001 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59527]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang XL,Hao MD,Du X,et al. The Mechanical Analysis of the Biofilm Streamer Nucleation and Geometry Characterization in Microfluidic Channels[J]. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE,2016:7819403. |
| APA | Wang XL,Hao MD,Du X,Wang GQ,&Matsushita J.(2016).The Mechanical Analysis of the Biofilm Streamer Nucleation and Geometry Characterization in Microfluidic Channels.COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE,7819403. |
| MLA | Wang XL,et al."The Mechanical Analysis of the Biofilm Streamer Nucleation and Geometry Characterization in Microfluidic Channels".COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE (2016):7819403. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。