Detalls de la publicació.

Article

Any:2022
Autor(s):M. Souzy, A. Allard, JF. Louf, M. Contino, I. Tuval, M. Polin
Títol:Microbial narrow-escape is facilitated by wall interactions
Revista:Physical Review Research
ISSN:2643-1564
Volum:4
Pàgines:022029
D.O.I.:10.1103/PhysRevResearch.4.L022029
Web:https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.4.L022029
Resum:

Cells have evolved efficient strategies to probe their surroundings and navigate through complex environments. From metastatic spread in the body to swimming cells in porous materials, escape through narrow constrictions—a key component of any structured environment connecting isolated microdomains—is one ubiquitous and crucial aspect of cell exploration. Here, using the model microalgae Chlamydomonas reinhardtii, we combine experiments and simulations to achieve a tractable realization of the classical Brownian narrow-escape problem in the context of active confined matter. Our results differ from those expected for Brownian particles or leaking chaotic billiards and demonstrate that cell-wall interactions substantially modify escape rates and, under generic conditions, expedite spread dynamics.

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