Geometric control of bacterial surface accumulation
Name
PhysRevE.99.052607.pdf
Description
Published version
Size
4.37 MB
Format
Adobe PDF
Checksum (MD5)
15f418a3ca523243d67b7a7e7c6b2328
Author(s)
Mok, Rachel V. (Rachel Verla)
Dunkel, Jörn
Kantsler, Vasily
Date Issued
May 2019
Journal
Physical review. E
Publisher
American Physical Society (APS)
Citation
Mok, Rachel, Jörn Dunkel, and Vasily Kantsler. "Geometric Control of Bacterial Surface Accumulation." Physical Review E 99, 5 (May 2019): no. 052607 ©2019 Author(s)
Version
Final published version
Abstract
Controlling and suppressing bacterial accumulation at solid surfaces is essential for preventing biofilm formation and biofouling. Whereas various chemical surface treatments are known to reduce cell accumulation and attachment, the role of complex surface geometries remains less well understood. Here, we report experiments and simulations that explore the effects of locally varying boundary curvature on the scattering and accumulation dynamics of swimming Escherichia coli bacteria in quasi-two-dimensional microfluidic channels. Our experimental and numerical results show that a concave periodic boundary geometry can decrease the average cell concentration at the boundary by more than 50% relative to a flat surface.© 2019 American Physical Society.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Mathematics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PHYSREVE.99.052607
