Jump to main content
Jump to site search

Issue 18, 2016
Previous Article Next Article

Quantitative morphological characterization of bicontinuous Pickering emulsions via interfacial curvatures

Author affiliations

Abstract

Bicontinuous Pickering emulsions (bijels) are a physically interesting class of soft materials with many potential applications including catalysis, microfluidics and tissue engineering. They are created by arresting the spinodal decomposition of a partially-miscible liquid with a (jammed) layer of interfacial colloids. Porosity L (average interfacial separation) of the bijel is controlled by varying the radius (r) and volume fraction (ϕ) of the colloids (Lr/ϕ). However, to optimize the bijel structure with respect to other parameters, e.g. quench rate, characterizing by L alone is insufficient. Hence, we have used confocal microscopy and X-ray CT to characterize a range of bijels in terms of local and area-averaged interfacial curvatures; we further demonstrate that bijels are bicontinuous using an image-analysis technique known as ‘region growing’. In addition, the curvatures of bijels have been monitored as a function of time, which has revealed an intriguing evolution up to 60 minutes after bijel formation, contrary to previous understanding.

Graphical abstract: Quantitative morphological characterization of bicontinuous Pickering emulsions via interfacial curvatures

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Dec 2015, accepted on 22 Mar 2016 and first published on 22 Mar 2016


Article type: Paper
DOI: 10.1039/C5SM03102H
Author version
available:
Download author version (PDF)
Soft Matter, 2016,12, 4082-4092
  • Open access: Creative Commons BY license
  •   Request permissions

    Quantitative morphological characterization of bicontinuous Pickering emulsions via interfacial curvatures

    M. Reeves, K. Stratford and J. H. J. Thijssen, Soft Matter, 2016, 12, 4082
    DOI: 10.1039/C5SM03102H

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements