Investigation of Cavity Development in a Cellular Spheroid Depending on the Mechanisms of Active Intercellular Interactions

Logvenkov, S. A.; Yudina, E. N.

doi:10.1134/s0015462821020075

Cited by 2 publications

(1 citation statement)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An active fluid is usually a suspension composed of units such as microparticles, cells, or polymers, which can break the equilibrium by consuming locally stored free energy and generate stress at the microscale, thereby converting chemical energy into mechanical energy [2]. Thanks to this inherent internal energy input, active fluids are a non-equilibrium physical system that is widely present in the biological field, such as cytoskeletons powered by molecular motors [3], bacterial suspensions [4], cell suspension [5], and microtubules driven by molecular motor proteins [6].…”

Section: Introductionmentioning

confidence: 99%

A study on the motion characteristics of particle in shear flow of active nematic fluid between two plates

Li,

Ye,

Lin

2024

Phys. Scr.

View full text Add to dashboard Cite

The motion characteristics of particle in shear flow of active nematic fluid between two plates are investigated numerically. The influence of activity intensity of active nematic fluids on the motion characteristics of particle is focused. The results showed that, when the activity intensity is high, the particle exhibits initially smooth trajectories and ultimately approximate Brownian motion. As the activity intensity increases, both the translational mean square displacement (MSDT) and rotational mean square displacement (MSDR) of the particle increase. The particle exhibits initially super-diffusive behavior and then normal diffusion. The unique vortex lattice mode in the flow plays a role in hindering particle motion, leading to a decrease in MSDT and MSDR. An increase in particle size will lead to a weakening of particle diffusion. In addition, there are topological defects in the active nematic fluid, and the number of topological defects Ndef in the contractile system is greater than that in the extensible system, while the presence of particle has a smaller impact on Ndef in the flow.

show abstract