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The Mechanical Analysis of the Biofilm Streamer Nucleation and Geometry Characterization in Microfluidic Channels
Joint Authors
Wang, Xiaoling
Wang, Guoqing
Hao, Mudong
Du, Xin
Matsushita, Jun-ichi
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-05-30
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Wang, Xiaoling& Hao, Mudong& Du, Xin& Wang, Guoqing& Matsushita, Jun-ichi. 2016. The Mechanical Analysis of the Biofilm Streamer Nucleation and Geometry Characterization in Microfluidic Channels. Computational and Mathematical Methods in Medicine،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1100200
Modern Language Association (MLA)
Wang, Xiaoling…[et al.]. The Mechanical Analysis of the Biofilm Streamer Nucleation and Geometry Characterization in Microfluidic Channels. Computational and Mathematical Methods in Medicine No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1100200
American Medical Association (AMA)
Wang, Xiaoling& Hao, Mudong& Du, Xin& Wang, Guoqing& Matsushita, Jun-ichi. The Mechanical Analysis of the Biofilm Streamer Nucleation and Geometry Characterization in Microfluidic Channels. Computational and Mathematical Methods in Medicine. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1100200
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1100200