Manipulating liquid-liquid phase separation using patterned flow

Fuente: arXiv
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Main Authors: Li, Yulin, Zhou, Tong, Li, Yanyu, Zhang, Qi, You, Zhihong
Format: Preprint
Published: 2024
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author Li, Yulin
Zhou, Tong
Li, Yanyu
Zhang, Qi
You, Zhihong
author_facet Li, Yulin
Zhou, Tong
Li, Yanyu
Zhang, Qi
You, Zhihong
contents The precise control of liquid-liquid phase separation (LLPS) is the key to developing cutting-edge technologies that benefit diverse disciplines. Fluid flow was found to be capable of controlling the structure and effective temperature of LLPS, but the extent and precision of control were less than optimal. In this article, we propose that patterned flow can be employed as a generic tool to manipulate LLPS effectively. By combining theoretical modeling and numerical simulations, we demonstrate that flows with tailor-made structures can become functional, allowing us to control diverse aspects of LLPS. Typical examples include the capture and pinning of droplets, fine-tuning of droplet sizes, forced assembly of periodic droplet arrays, and the remodeling of the kinetics and structure of phase separation. These manipulations are grounded on the redistribution of chemical potential by the structured flow. Our results not only can lead to potential LLPS-based technologies, but also highlight the rich behavior of LLPS introduced by the patterned flow.
format Preprint
id arxiv_https___arxiv_org_abs_2407_02792
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Manipulating liquid-liquid phase separation using patterned flow
Li, Yulin
Zhou, Tong
Li, Yanyu
Zhang, Qi
You, Zhihong
Fluid Dynamics
Soft Condensed Matter
Biological Physics
The precise control of liquid-liquid phase separation (LLPS) is the key to developing cutting-edge technologies that benefit diverse disciplines. Fluid flow was found to be capable of controlling the structure and effective temperature of LLPS, but the extent and precision of control were less than optimal. In this article, we propose that patterned flow can be employed as a generic tool to manipulate LLPS effectively. By combining theoretical modeling and numerical simulations, we demonstrate that flows with tailor-made structures can become functional, allowing us to control diverse aspects of LLPS. Typical examples include the capture and pinning of droplets, fine-tuning of droplet sizes, forced assembly of periodic droplet arrays, and the remodeling of the kinetics and structure of phase separation. These manipulations are grounded on the redistribution of chemical potential by the structured flow. Our results not only can lead to potential LLPS-based technologies, but also highlight the rich behavior of LLPS introduced by the patterned flow.
title Manipulating liquid-liquid phase separation using patterned flow
topic Fluid Dynamics
Soft Condensed Matter
Biological Physics
url https://arxiv.org/abs/2407.02792