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Agarose Fluid Gels Formed by Shear Processing During Gelation for Suspended 3D Bioprinting

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Understanding Gelation as a Nonequilibrium Self-Assembly Process.

Andrés Arango-Restrepo¹, J Miguel Rubi², Daniel Barragán¹

¹Department of Chemistry, Science Faculty , Universidad Nacional de Colombia , Calle 59A No. 63-20, Bloque 21, Núcleo El Volador , Medellín 050034 , Colombia.

The Journal of Physical Chemistry. B

|April 18, 2018

Summary

This summary is machine-generated.

This study introduces a nonequilibrium thermodynamic model for self-assembly (SA) kinetics, explaining gel formation. The model accurately predicts measurable quantities, aligning well with experimental data for advanced materials and biomedicine.

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Area of Science:

Physical Chemistry
Materials Science
Biophysics

Background:

Gel formation often involves nonequilibrium self-assembly (SA) processes.
Understanding the kinetics of these dynamic structures is crucial for applications.

Purpose of the Study:

To develop a mesoscopic thermodynamic model for nonequilibrium SA kinetics.
To describe the dynamic assembly of structures from precursors.

Main Methods:

Developed a mesoscopic nonequilibrium thermodynamic model.
Utilized Fokker-Planck type kinetic equations to model structure evolution.
Calculated probability densities to derive measurable quantities.

Main Results:

The model accurately describes the evolution from building blocks to agglomerates.
Derived quantities like component concentrations and dynamic structure factor.
Model predictions show excellent agreement with experimental light-scattering data.

Conclusions:

The proposed model effectively analyzes the kinetics of nonequilibrium SA structures.
This framework is applicable to structures found in biomedicine and advanced materials.
The model provides a theoretical basis for understanding entropy-driven self-assembly.