Evaporative phase separation in polymer microdroplets with confinement and internal flow

Kumar, Mukesh; Gopu, Maheshwar Reddy; Pugalneelam Parameswaran, Senthan; Joshi, Prerak; Mampallil, Dileep

Evaporative phase separation in polymer microdroplets with confinement and internal flow

Dateien

Kumar_2-piz2j2xgvtb81.pdfGröße: 3.17 MBDownloads: 2

Datum

2024

Autor:innen

Kumar, Mukesh

Gopu, Maheshwar Reddy

Pugalneelam Parameswaran, Senthan

Joshi, Prerak

Mampallil, Dileep

Open Access-Veröffentlichung

Open Access Gold

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

JCIS Open. Elsevier. 2024, 13, 100101. ISSN 2666-934X. Verfügbar unter: doi: 10.1016/j.jciso.2023.100101

Zusammenfassung

Evaporation can drive initially homogeneous multiphase liquid systems out of equilibrium to induce liquid-liquid phase separation (LLPS). Here, we demonstrate evaporative LLPS in microfluidic-generated emulsion microdroplets of polymer mixtures. The evaporation produces distinct polymer phases within the microdroplets. Phase separation occurs even with polymer combinations that do not form distinct phases in sessile droplet evaporation. We attribute this aspect to evaporation-driven solutal Marangoni flows and the interface capture accumulating the nuclei at the apex where the evaporation rate is the maximum. A fast coalescence and growth of the accumulated polymer nuclei occurs inside the droplets, unlike the capillary-flow-induced spread-out of the nuclei along the contact line in sessile drops. Our method of evaporation of the droplet cluster may facilitate studying LLPS in volume-limited environments and have implications for understanding LLPS in biological systems.

Fachgebiet (DDC)

530 Physik

Schlagwörter

Liquid-liquid phase separation, Evaporation, Emulsion, Confinement, Marangoni flow

Zitieren

ISO 690

KUMAR, Mukesh, Maheshwar Reddy GOPU, Senthan PUGALNEELAM PARAMESWARAN, Prerak JOSHI, Dileep MAMPALLIL, 2024. Evaporative phase separation in polymer microdroplets with confinement and internal flow. In: JCIS Open. Elsevier. 2024, 13, 100101. ISSN 2666-934X. Verfügbar unter: doi: 10.1016/j.jciso.2023.100101

BibTex

@article{Kumar2024-04Evapo-71786,
  year={2024},
  doi={10.1016/j.jciso.2023.100101},
  title={Evaporative phase separation in polymer microdroplets with confinement and internal flow},
  volume={13},
  issn={2666-934X},
  journal={JCIS Open},
  author={Kumar, Mukesh and Gopu, Maheshwar Reddy and Pugalneelam Parameswaran, Senthan and Joshi, Prerak and Mampallil, Dileep},
  note={Article Number: 100101}
}

RDF

<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/71786">
    <dc:creator>Gopu, Maheshwar Reddy</dc:creator>
    <dc:creator>Mampallil, Dileep</dc:creator>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2025-01-08T09:23:45Z</dcterms:available>
    <dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 International</dc:rights>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc-nd/4.0/"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/71786/4/Kumar_2-piz2j2xgvtb81.pdf"/>
    <dc:creator>Kumar, Mukesh</dc:creator>
    <dc:contributor>Gopu, Maheshwar Reddy</dc:contributor>
    <dc:contributor>Pugalneelam Parameswaran, Senthan</dc:contributor>
    <dcterms:issued>2024-04</dcterms:issued>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/71786/4/Kumar_2-piz2j2xgvtb81.pdf"/>
    <dc:creator>Pugalneelam Parameswaran, Senthan</dc:creator>
    <dc:contributor>Kumar, Mukesh</dc:contributor>
    <dcterms:abstract>Evaporation can drive initially homogeneous multiphase liquid systems out of equilibrium to induce liquid-liquid phase separation (LLPS). Here, we demonstrate evaporative LLPS in microfluidic-generated emulsion microdroplets of polymer mixtures. The evaporation produces distinct polymer phases within the microdroplets. Phase separation occurs even with polymer combinations that do not form distinct phases in sessile droplet evaporation. We attribute this aspect to evaporation-driven solutal Marangoni flows and the interface capture accumulating the nuclei at the apex where the evaporation rate is the maximum. A fast coalescence and growth of the accumulated polymer nuclei occurs inside the droplets, unlike the capillary-flow-induced spread-out of the nuclei along the contact line in sessile drops. Our method of evaporation of the droplet cluster may facilitate studying LLPS in volume-limited environments and have implications for understanding LLPS in biological systems.</dcterms:abstract>
    <dc:creator>Joshi, Prerak</dc:creator>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:contributor>Joshi, Prerak</dc:contributor>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/71786"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:contributor>Mampallil, Dileep</dc:contributor>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2025-01-08T09:23:45Z</dc:date>
    <dc:language>eng</dc:language>
    <dcterms:title>Evaporative phase separation in polymer microdroplets with confinement and internal flow</dcterms:title>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Ja

Begutachtet

Unbekannt