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Related Experiment Video

Updated: Dec 27, 2025

Optimization of Crystal Growth for Neutron Macromolecular Crystallography

Optimization of Crystal Growth for Neutron Macromolecular Crystallography

Published on: March 13, 2021

Enhancing crystal growth using polyelectrolyte solutions and shear flow.

Jian-Ke Sun^1,2, Yaroslav I Sobolev¹, Weiyi Zhang³

¹Center for Soft and Living Matter, Institute for Basic Science, Ulsan, South Korea.

|March 6, 2020

Summary

This summary is machine-generated.

Stirring with polymers accelerates crystal growth, producing larger crystals faster than static methods. This novel shear-driven technique enhances crystal size and formation speed for industrial applications.

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Area of Science:

Materials Science
Chemical Engineering
Crystallography

Background:

Crystal growth is crucial for single-crystal diffraction, industrial processes, and drug approvals.
Traditional methods avoid mechanical disturbances like stirring, which can cause secondary nucleation and reduce crystal size.
Shear flow is generally considered detrimental to crystal growth, leading to smaller crystals.

Purpose of the Study:

To investigate the effect of stirring in the presence of polymers on crystal growth.
To determine if shear can enhance crystal size and growth rate.
To explore a novel method for accelerated crystal growth.

Main Methods:

Studied crystal growth of ~20 diverse compounds (organic, inorganic, metal-organic, proteins) in common solvents.
Compared crystal growth under stirring with polymers versus static conditions at constant temperature.
Analyzed crystal size, morphology, and growth rates.

Main Results:

Stirring with polymers significantly increased crystal size (up to 16x larger) and growth speed compared to static controls.
Regularly faceted crystals were obtained in minutes to tens of minutes.
Two synergistic effects were identified: polymer disentanglement/solvation competition and shear rate dependence on particle size.

Conclusions:

Shear-driven crystallization in the presence of polymers accelerates growth and enhances crystal size.
This method offers a valuable alternative to traditional crystal growth techniques.
Potential applications in materials and pharmaceutical industries for accelerated crystal production.