论文标题

建模弹性介导的液态液相分离

Modelling Elastically-Mediated Liquid-Liquid Phase Separation

论文作者

Wei, Xuefeng, Zhou, Jiajia, Wang, Yanting, Meng, Fanlong

论文摘要

我们提出了在弹性网络中液态液相分离的连续理论,其中富含一种流体成分的相位分离的显微镜液滴可以形成作为流体混合,液滴成核,网络变形,热力学波动的相互作用,\ emph {etc}。我们发现,相位分离液滴的大小随弹性网络的剪切模量而减小,形式的形式为$ \ sim [\ mathrm {modulus}]^{ - 1/3} $,液滴的数量密度几乎是线性增加的,随着剪切模量$ \ sim [\ sim [\ naterrm {modulus verifient verifation verifation verifation verifation compifient verifation compifient verifation combis] $ compiative。提供了(流体构成,混合物相互作用,网络模量)的空间中的相图,这可以帮助理解生物细胞中的相似相位分离,并指导具有所需相性能的合成细胞的捏造。

We propose a continuum theory of the liquid-liquid phase separation in an elastic network where phase-separated microscopic droplets rich in one fluid component can form as an interplay of fluids mixing, droplet nucleation, network deformation, thermodynamic fluctuation, \emph{etc}. We find that the size of the phase separated droplets decreases with the shear modulus of the elastic network in the form of $\sim[\mathrm{modulus}]^{-1/3}$ and the number density of the droplet increases almost linearly with the shear modulus $\sim[\mathrm{modulus}]$, which are verified by the experimental observations. Phase diagrams in the space of (fluid constitution, mixture interaction, network modulus) are provided, which can help to understand similar phase separations in biological cells and also to guide fabrications of synthetic cells with desired phase properties.

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