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  • Rey, Marcel,1989Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU) (author)

Interactions between interfaces dictate stimuli-responsive emulsion behaviour

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • 2023

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  • LIBRIS-ID:oai:gup.ub.gu.se/333371
  • https://gup.ub.gu.se/publication/333371URI
  • https://doi.org/10.1038/s41467-023-42379-zDOI

Supplementary language notes

  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Stimuli-responsive emulsions offer a dual advantage, combining long-term storage with controlled release triggered by external cues such as pH or temperature changes. This study establishes that thermo-responsive emulsion behaviour is primarily determined by interactions between, rather than within, interfaces. Consequently, the stability of these emulsions is intricately tied to the nature of the stabilizing microgel particles - whether they are more polymeric or colloidal, and the morphology they assume at the liquid interface. The colloidal properties of the microgels provide the foundation for the long-term stability of Pickering emulsions. However, limited deformability can lead to non-responsive emulsions. Conversely, the polymeric properties of the microgels enable them to spread and flatten at the liquid interface, enabling stimuli-responsive behaviour. Furthermore, microgels shared between two emulsion droplets in flocculated emulsions facilitate stimuli-responsiveness, regardless of their internal architecture. This underscores the pivotal role of microgel morphology and the forces they exert on liquid interfaces in the control and design of stimuli-responsive emulsions and interfaces. Stimuli-responsive emulsions are useful for long-term storage combined with controlled release, but the fundamental mechanism behind this release is not established. Here, the authors report a study into the effect of individual microgel morphology on the destabilisation of responsive emulsions.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Kolker, Jannis (author)
  • Richards, James A. (author)
  • Malhotra, Isha (author)
  • Glen, Thomas S. (author)
  • Li, N. Y. Denise (author)
  • Laidlaw, Fraser H. J. (author)
  • Renggli, Damian (author)
  • Vermant, Jan (author)
  • Schofield, Andrew B. (author)
  • Fujii, Syuji (author)
  • Loewen, Hartmut (author)
  • Clegg, Paul S. (author)
  • Göteborgs universitetInstitutionen för fysik (GU) (creator_code:org_t)

Related titles

  • In:NATURE COMMUNICATIONS14:12041-1723

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