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Updated: Jun 26, 2025
08:49
Self-Assembly of Microtubule Tactoids
Published on: June 23, 2022
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Microscopic origin of tunable assembly forces in chiral active environments.
Clay H Batton1, Grant M Rotskoff1
1Department of Chemistry, Stanford University, Stanford, CA, 94305, USA. rotskoff@stanford.edu.
Soft Matter
|May 10, 2024
Summary
Active matter, like chiral particles, drives self-assembly in non-equilibrium systems. This research explains how these active environments create robust, long-range forces for passive solutes, advancing control over self-organization.
Area of Science:
- Soft Matter Physics
- Active Matter Systems
- Non-equilibrium Thermodynamics
Background:
- Equilibrium self-assembly is constrained by material thermodynamics.
- Active matter offers new possibilities for self-organization beyond equilibrium limits.
- Interactions in active environments are complex and not fully understood.
Purpose of the Study:
- To elucidate the mechanisms by which active environments drive passive solute self-assembly.
- To determine the conditions under which active self-assembly is robust.
- To develop a theoretical framework for controlling self-assembly in non-equilibrium systems.
Main Methods:
- Theoretical analysis using the framework of odd hydrodynamics.
- Explanation of numerical and experimental observations.
- Focus on chiral active matter (particles with directional torque).
Main Results:
- Chiral active matter generates robust and long-ranged assembly forces on passive solutes.
- Odd hydrodynamics provides a theoretical explanation for these emergent forces.
- Identified conditions for robust self-assembly in actively driven environments.
Conclusions:
- Active environments, particularly chiral active matter, can drive significant self-assembly.
- The study provides a mechanistic understanding of force generation and assembly robustness.
- This work is a key step towards controlling self-assembly in non-equilibrium conditions.
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