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Wall accumulation of bacteria with different motility patterns.
Phys Rev E. 2018 Feb; 97(2-1):022610.PR

Abstract

We systematically investigate the role of different swimming patterns on the concentration distribution of bacterial suspensions confined between two flat walls, by considering wild-type motility Escherichia coli and Pseudomonas aeruginosa, which perform Run and Tumble and Run and Reverse patterns, respectively. The experiments count motile bacteria at different distances from the bottom wall. In agreement with previous studies, an accumulation of motile bacteria close to the walls is observed. Different wall separations, ranging from 100 to 250μm, are tested. The concentration profiles result to be independent on the motility pattern and on the walls' separation. These results are confirmed by numerical simulations, based on a collection of self-propelled dumbbells-like particles interacting only through steric interactions. The good agreement with the simulations suggests that the behavior of the investigated bacterial suspensions is determined mainly by steric collisions and self-propulsion, as well as hydrodynamic interactions.

Authors+Show Affiliations

Dipartimento di Fisica e Astronomia "Galileo Galilei," Università di Padova, via Marzolo 8, 35131 Padova PD, Italy.Dipartimento di Fisica e Astronomia "Galileo Galilei," Università di Padova, via Marzolo 8, 35131 Padova PD, Italy.Dipartimento di Fisica e Astronomia "Galileo Galilei," Università di Padova, via Marzolo 8, 35131 Padova PD, Italy.Dipartimento di Fisica e Astronomia "Galileo Galilei," Università di Padova, via Marzolo 8, 35131 Padova PD, Italy.Dipartimento di Fisica e Astronomia "Galileo Galilei," Università di Padova, via Marzolo 8, 35131 Padova PD, Italy.Dipartimento di Medicina Molecolare, Università di Padova, via Gabelli 63, 35121 Padova PD, Italy.Dipartimento di Fisica e Astronomia "Galileo Galilei," Università di Padova and INFN, via Marzolo 8, 35131 Padova PD, Italy.Dipartimento di Fisica e Astronomia "Galileo Galilei," Università di Padova and INFN, via Marzolo 8, 35131 Padova PD, Italy.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29548231

Citation

Sartori, Paolo, et al. "Wall Accumulation of Bacteria With Different Motility Patterns." Physical Review. E, vol. 97, no. 2-1, 2018, p. 022610.
Sartori P, Chiarello E, Jayaswal G, et al. Wall accumulation of bacteria with different motility patterns. Phys Rev E. 2018;97(2-1):022610.
Sartori, P., Chiarello, E., Jayaswal, G., Pierno, M., Mistura, G., Brun, P., Tiribocchi, A., & Orlandini, E. (2018). Wall accumulation of bacteria with different motility patterns. Physical Review. E, 97(2-1), 022610. https://doi.org/10.1103/PhysRevE.97.022610
Sartori P, et al. Wall Accumulation of Bacteria With Different Motility Patterns. Phys Rev E. 2018;97(2-1):022610. PubMed PMID: 29548231.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Wall accumulation of bacteria with different motility patterns. AU - Sartori,Paolo, AU - Chiarello,Enrico, AU - Jayaswal,Gaurav, AU - Pierno,Matteo, AU - Mistura,Giampaolo, AU - Brun,Paola, AU - Tiribocchi,Adriano, AU - Orlandini,Enzo, PY - 2017/12/06/received PY - 2018/3/18/entrez PY - 2018/3/20/pubmed PY - 2018/10/10/medline SP - 022610 EP - 022610 JF - Physical review. E JO - Phys Rev E VL - 97 IS - 2-1 N2 - We systematically investigate the role of different swimming patterns on the concentration distribution of bacterial suspensions confined between two flat walls, by considering wild-type motility Escherichia coli and Pseudomonas aeruginosa, which perform Run and Tumble and Run and Reverse patterns, respectively. The experiments count motile bacteria at different distances from the bottom wall. In agreement with previous studies, an accumulation of motile bacteria close to the walls is observed. Different wall separations, ranging from 100 to 250μm, are tested. The concentration profiles result to be independent on the motility pattern and on the walls' separation. These results are confirmed by numerical simulations, based on a collection of self-propelled dumbbells-like particles interacting only through steric interactions. The good agreement with the simulations suggests that the behavior of the investigated bacterial suspensions is determined mainly by steric collisions and self-propulsion, as well as hydrodynamic interactions. SN - 2470-0053 UR - https://www.unboundmedicine.com/medline/citation/29548231/Wall_accumulation_of_bacteria_with_different_motility_patterns DB - PRIME DP - Unbound Medicine ER -