The coexistence region in the Van der Waals fluid and the liquid-liquid phase transitions

Cellular membraneless organelles are thought to be droplets formed within the two-phase region corresponding to proteinaceous systems endowed with the liquid-liquid transition. However, their metastability requires an additional constraint—they arise in a certain region of density and temperature be...

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Main Authors: Dinh Quoc Huy Pham, Mateusz Chwastyk, Marek Cieplak
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Chemistry
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fchem.2022.1106599/full
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author Dinh Quoc Huy Pham
Mateusz Chwastyk
Marek Cieplak
author_facet Dinh Quoc Huy Pham
Mateusz Chwastyk
Marek Cieplak
author_sort Dinh Quoc Huy Pham
collection DOAJ
description Cellular membraneless organelles are thought to be droplets formed within the two-phase region corresponding to proteinaceous systems endowed with the liquid-liquid transition. However, their metastability requires an additional constraint—they arise in a certain region of density and temperature between the spinodal and binodal lines. Here, we consider the well-studied van der Waals fluid as a test model to work out criteria to determine the location of the spinodal line for situations in which the equation of state is not known. Our molecular dynamics studies indicate that this task can be accomplished by considering the specific heat, the surface tension and characteristics of the molecular clusters, such as the number of component chains and radius of gyration.
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spelling doaj.art-ac3aae0039b34c70b2a024caa24f9ce12023-01-25T05:21:40ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462023-01-011010.3389/fchem.2022.11065991106599The coexistence region in the Van der Waals fluid and the liquid-liquid phase transitionsDinh Quoc Huy PhamMateusz ChwastykMarek CieplakCellular membraneless organelles are thought to be droplets formed within the two-phase region corresponding to proteinaceous systems endowed with the liquid-liquid transition. However, their metastability requires an additional constraint—they arise in a certain region of density and temperature between the spinodal and binodal lines. Here, we consider the well-studied van der Waals fluid as a test model to work out criteria to determine the location of the spinodal line for situations in which the equation of state is not known. Our molecular dynamics studies indicate that this task can be accomplished by considering the specific heat, the surface tension and characteristics of the molecular clusters, such as the number of component chains and radius of gyration.https://www.frontiersin.org/articles/10.3389/fchem.2022.1106599/fullVan der Waals fluidphase diagamliquid-liquid phase transitionsintrinsically disordered proteins (IDPs)molecular dynamics simulations (MD)
spellingShingle Dinh Quoc Huy Pham
Mateusz Chwastyk
Marek Cieplak
The coexistence region in the Van der Waals fluid and the liquid-liquid phase transitions
Frontiers in Chemistry
Van der Waals fluid
phase diagam
liquid-liquid phase transitions
intrinsically disordered proteins (IDPs)
molecular dynamics simulations (MD)
title The coexistence region in the Van der Waals fluid and the liquid-liquid phase transitions
title_full The coexistence region in the Van der Waals fluid and the liquid-liquid phase transitions
title_fullStr The coexistence region in the Van der Waals fluid and the liquid-liquid phase transitions
title_full_unstemmed The coexistence region in the Van der Waals fluid and the liquid-liquid phase transitions
title_short The coexistence region in the Van der Waals fluid and the liquid-liquid phase transitions
title_sort coexistence region in the van der waals fluid and the liquid liquid phase transitions
topic Van der Waals fluid
phase diagam
liquid-liquid phase transitions
intrinsically disordered proteins (IDPs)
molecular dynamics simulations (MD)
url https://www.frontiersin.org/articles/10.3389/fchem.2022.1106599/full
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