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Updated: Dec 30, 2025

Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release

Alternating Magnetic Field-Responsive Hybrid Gelatin Microgels for Controlled Drug Release

Published on: February 13, 2016

Active gel segment behaving as an active particle.

P Recho¹, T Putelat^2,3, L Truskinovsky⁴

¹LIPhy, CNRS-UMR 5588, Université Grenoble Alpes, F-38000 Grenoble, France.

Physical Review. E

|January 23, 2020

Summary

This summary is machine-generated.

This study simplifies active segment (AS) models to active particle (AP) models, revealing double bistability and rich dynamics in cell motility. Both models accurately predict agent behavior in viscoelastic environments.

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Area of Science:

Physics
Biophysics
Cell Biology

Background:

Active segments (AS) model contraction-driven cell motility.
Understanding active agent dynamics is crucial for cell biology.

Purpose of the Study:

To reduce a 1D AS model to a 0D active particle (AP) model.
To investigate the dynamic repertoire and hysteretic behaviors of active agents.

Main Methods:

Dimensionality reduction from 1D AS to 0D AP model.
Analysis of force-velocity relations and hysteretic phenomena.
Simulation of agent behavior in a viscoelastic environment.

Main Results:

Developed a simplified 0D AP model from a 1D AS model.
Identified double bistability leading to rich dynamic behaviors.
Demonstrated quantitative agreement between AS and AP models.

Conclusions:

The AP model captures essential dynamics of the AS model.
Active agents exhibit complex behaviors like static, stalled, and motile regimes.
The models provide a framework for studying cell motility.