Role of cilia activity and surrounding viscous fluid on properties of metachronal waves - Archive ouverte HAL Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2023

Role of cilia activity and surrounding viscous fluid on properties of metachronal waves

Résumé

Large groups of active cilia collectively beat in a fluid medium as metachronal waves, essential for some microorganisms motility and for flow generation in mucociliary clearance. Several models can predict the emergence of metachronal waves, but what controls the properties of metachronal waves is still unclear. Here, we investigate numerically a simple model for cilia in the presence of noise on regular lattices in one- and two-dimensions. We characterize the wave using spatial correlation and the frequency of collective beating. Our results clearly show that the viscosity of the fluid medium does not affect the wavelength; the activity of the cilia does. These numerical results are supported by a dimensional analysis, which is expected to be robust against the model for active force generation, unless surrounding fluid influences the cilia activity. Interestingly, enhancement of cilia activity increases the wavelength and decreases the beating frequency, keeping the wave velocity almost unchanged. These results might have significance in understanding paramecium locomotion and mucociliary clearance diseases.
Fichier principal
Vignette du fichier
2310.16770.pdf (593.73 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04279663 , version 1 (10-11-2023)

Identifiants

Citer

Supravat Dey, Gladys Massiera, Estelle Pitard. Role of cilia activity and surrounding viscous fluid on properties of metachronal waves. 2023. ⟨hal-04279663⟩
21 Consultations
13 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More