Mechanism of periodic field driven self-assembly process

Area of Science:

• Soft Matter Physics
• Materials Science
• Chemical Engineering

Background:

• Dissipative self-assembly, common in biology, uses external fields to create non-equilibrium structures.
• Existing methods lack detailed descriptions of dynamic processes and responsiveness in driven self-assembly.

Purpose of the Study:

• To develop a theoretical framework for understanding frequency-dependent dynamics in externally driven dissipative self-assembly.
• To provide a method for predicting and controlling out-of-equilibrium self-assembled structures.

Main Methods:

• Developed a theoretical framework using equations of motion and Floquet theory.
• Employed dissipative particle dynamics simulations with a block copolymer model in dilute solution.

Main Results:

• The theoretical framework successfully reveals dynamic behaviors influenced by external field frequency.
• Simulations confirmed theoretical predictions for block copolymer self-assembly under periodic driving.

Conclusions:

• The developed framework enhances understanding of dynamic behavior in periodically driven self-assembly.
• Provides theoretical guidance for designing dissipative conditions and achieving desired out-of-equilibrium materials.