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Kinetic description of water transport during spontaneous emulsification induced by Span 80.

Author information

Affiliations

  • 1. Institution of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-Ku, Sendai 980-8577, Japan.
      Authors
    • Fukuyama M 1
    • Santivongskul P 1
    (2 authors)
  • 2. Faculty of Materials Science and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
      Authors
    • Mizuguchi T 2
    (1 author)
  • 3. Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
      Authors
    • Ono Y 3
    (1 author)
  • 4. Faculty of Production Systems Engineering and Sciences, Komatsu University, Nu 1-3, Yonchoumemachi, Komatsu, Ishikawa 923-0971, Japan.
      Authors
    • Kasuya M 4
    (1 author)
  • 5. Faculty of Engineering, Utsunomiya University, 7-1-2, Yoto, Utsunomiya, Tochigi 321-8585, Japan.
      Authors
    • Inagawa A 5
    (1 author)
    • Show all (6)

ORCIDs linked to this article

Nanoscale, 22 Feb 2024, 16(8):4056-4062
https://doi.org/10.1039/d3nr06121c PMID: 38345086 

Abstract 

Spontaneous emulsification is a phenomenon that forms nanometer-sized droplets (nanodroplets) without the application of any external force, and the mechanism has been actively studied for application to various technologies. In this study, we analyzed the kinetics of spontaneous emulsification induced by Span 80. The measurement of water concentration in Span 80 hexadecane solution indicated that the chemical potential of water in the nanodroplets decreased as the amount of water in the nanodroplets decreased. Based on this result, water transport between the aqueous phase and nanodroplets in which the chemical potential of water was controlled was quantitatively investigated by using a microfluidic device. The results demonstrate that the kinetics of water transport during spontaneous emulsification induced by Span 80 was described by a model of osmotic transport through an organic liquid film between the aqueous phase and nanodroplets.

Full text links 

Read article at publisher's site: https://doi.org/10.1039/d3nr06121c

Read article for free, from open access legal sources, via Unpaywall: https://pubs.rsc.org/en/content/articlepdf/2024/nr/d3nr06121cUnpaywall

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Funding 

Funders who supported this work.

Japan Science and Technology Agency (1)

Japan Society for the Promotion of Science (2)