Fabrication and characterization of emulsions with pH responsive switchable behavior

We report the fabrication of pH responsive switchable emulsions that quickly destabilise at acidic pH, but switch back to the stable state when the pH is neutralized. The pH triggered flocculation is further used to influence the assembly of droplets into predetermined shapes. Such systems, stabilis...

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Bibliographic Details
Published in:Soft matter 2013-01, Vol.9 (29), p.6747-6751
Main Authors: Patel, Ashok R., Drost, Ellen, Seijen ten Hoorn, Jack, Velikov, Krassimir P.
Format: Article
Language:English
Subjects:
Assembly
Colloids
Droplets
Emulsions
Flocculating
Switches
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Summary:We report the fabrication of pH responsive switchable emulsions that quickly destabilise at acidic pH, but switch back to the stable state when the pH is neutralized. The pH triggered flocculation is further used to influence the assembly of droplets into predetermined shapes. Such systems, stabilised using natural and non-toxic components, can find important applications in the field of green colloidal structuring.
ISSN:1744-683X
1744-6848
DOI:10.1039/c3sm27900f