Non-equilibrium tracer dynamics in oscillating active gel

Reserva, Rosario L.; Filipinas, Jae Lord Dexter C.; Jerez, Michael Jade Y.; Confesor, Mark Nolan P.

doi:10.1016/j.physa.2022.127812

Cited by 2 publications

(4 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The activity was caused by the plasmodial oscillation of the slime mold Physarum polycephalum . 14 Further, increasing F a results in more numbers of central peaks, as the self-propulsion facilitates the mesh-to-mesh motion of the dumbbell ( Figure 8 ). In the long-time limit, the density profile broadens due to the diffusive motion of the self-driven dumbbell.…”

Section: Self-driven Rigid Dumbbells In Polymer Gelmentioning

confidence: 98%

“…More recently, such side peaks were observed in experiments involving tracer particles in an active gel. The activity was caused by the plasmodial oscillation of the slime mold Physarum polycephalum . Further, increasing F a results in more numbers of central peaks, as the self-propulsion facilitates the mesh-to-mesh motion of the dumbbell (Figure ).…”

Section: Self-driven Rigid Dumbbells In Polymer Gelmentioning

confidence: 99%

“…The dynamics of active Brownian particles become the central focus of the physical and biophysical research communities. In the last few decades, several studies are reported, which try to reveal the physics behind the novel features exhibited by the active Brownian particles in complex media. ,− However, the real-life situations are quite different, and hence there is a growing interest in understanding the dynamics of these active Brownian particles in complex environments such as porous soils, sediments, and living tissues. There are multiple factors like crowding and local heterogeneity that either enhance or limit the diffusion of active agents moving through these complex media for performing their assigned tasks.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

In Silico Studies of Active Probe Dynamics in Crowded Media

et al. 2022

View full text Add to dashboard Cite

Active systems are made of agents, each of which takes energy from the environment and converts it to directed motion. Therefore, by construction, these systems function out of equilibrium and cannot be described using equilibrium statistical mechanics. Though the most studied aspect has been the collective motion of active particles, the motion at the individual particle level in crowded media is also of prime importance. Examples include the motion of bacteria in hydrogels, single cell migration as a way to search for food or escape from toxic agents, and synthetic active agents transporting through soft crowded media. This review presents an overview of our understanding of single active probe dynamics in crowded media from computer simulations. The active probe is a Janus or a dumbbell-shaped particle, and the medium is made of crowders that are either sticky or repulsive to the probe and could be frozen or mobile. The density and the topology of the crowders also play an important role. We hope our in silico studies will help to elucidate the mechanism of activity-driven transport in crowded media in general and design nanomachines for targeted delivery.

show abstract

Section: Self-driven Rigid Dumbbells In Polymer Gelmentioning

confidence: 98%

Section: Self-driven Rigid Dumbbells In Polymer Gelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

In Silico Studies of Active Probe Dynamics in Crowded Media

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The three tracer beads labelled 1, 2 and 3 (frame 1) were tracked. Bead positions were obtained from the images using the centroid algorithm with tracking resolution of 0.1μm[31,32]. Fig.3(b) show the 3D-time series displacement of the three polyethylene beads for a period of 3800 sec showing an oscillatory behaviour.…”

mentioning

confidence: 99%

Atomic Force Microscopy Characterization of Polyacrylamide Substrate for Traction Force Application

Reserva,

Ohura,

Miyashiro

et al. 2023

SSP

Self Cite

View full text Add to dashboard Cite

Atomic Force Microscopy (AFM) technology has ushered researchers to directly observe surface topology and the substrate mechanical properties using specialized probe. AFM is one of the microscopic techniques with the highest lateral resolution which can be employed in air or even in liquids. In this experiment, we characterized the local elastic properties of the polyacrylamide (PA) hydrogel using Atomic Force Microscopy (AFM). PA consists of huge units of an organic acrylamide monomers which can be saturated to form a highly water-swollen hydrogel. The hydrogel offers tunable density with a high degree of pliability which depends of its applications. Such applications of PA hydrogel can be in cell substrate studies and measurement of cell-generated forces. Our results with AFM measurement yielded force-distance curves were used to determine the elastic behaviour of the polyacrylamide (PA) hydrogel. Analysis has shown that 15% w/v PA hydrogel concentration has Young’s modulus, Yav=1608.9 ± 1.3 kPa (n=8) and transverse stiffness, Kav=88.7 ± 9.7 μN/nm (n=8) at Thus, elasticity measurements has provided useful insights for the future experiment on traction force microscopy with amoeboid organism.

show abstract

Non-equilibrium tracer dynamics in oscillating active gel

Cited by 2 publications

References 25 publications

In Silico Studies of Active Probe Dynamics in Crowded Media

In Silico Studies of Active Probe Dynamics in Crowded Media

Atomic Force Microscopy Characterization of Polyacrylamide Substrate for Traction Force Application

Contact Info

Product

Resources

About