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Advances and opportunities of oil-in-oil emulsions

Zia, A, Pentzer, E, Thickett, S ORCID: 0000-0002-8168-3856 and Kempe, K 2020 , 'Advances and opportunities of oil-in-oil emulsions' , ACS Applied Materials and Interfaces, vol. 12, no. 35 , pp. 38845-38861 , doi: 10.1021/acsami.0c07993.

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Abstract

Emulsions are mixtures of two immiscible liquids in which droplets of one are dispersed in a continuous phase of the other. The most common emulsions are oil-water systems, which have found widespread use across a number of industries, for example, in the cosmetic and food industries, and are also of advanced scientific interest. In addition, the past decade has seen a significant increase in both the design and application of nonaqueous emulsions. This has been primarily driven by developments in understanding the mechanism of effective stabilization of oil-in-oil (o/o) systems, either using block copolymers (BCPs) or solid (Pickering) particles with appropriate surface functionality. These systems, as highlighted in this review, have enabled emergent applications in areas such as pharmaceutical delivery, energy storage, and materials design (e.g., polymerization, monolith, and porous polymer synthesis). These o/o emulsions complement traditional emulsions that utilize an aqueous phase and allow the use of materials incompatible with water. We assess recent advances in the preparation and stabilization of o/o emulsions, focusing on the identity of the stabilizer (BCP or particle), the interplay between stabilizer and oils, and highlighting applications and opportunities associated with o/o emulsions.

Item Type: Article
Authors/Creators:Zia, A and Pentzer, E and Thickett, S and Kempe, K
Keywords: emulsions, non-aqueous systems, nanomaterials, oil-oil, polyHIPEs, monoliths, drug delivery
Journal or Publication Title: ACS Applied Materials and Interfaces
Publisher: American Chemical Society
ISSN: 1944-8244
DOI / ID Number: 10.1021/acsami.0c07993
Copyright Information:

© 2020 American Chemical Society

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