Anisotropic Compartmentalization of the Liquid–Liquid Interface using Dynamic Imine Chemistry

The liquid–liquid interface offers a fascinating avenue for generating hierarchical compartments. Herein, the dynamic imine chemistry is employed at the oil–water interface to investigate the effect of dynamic covalent bonds for modulating the droplet shape. The imine bond formation between oil-solu...

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Bibliographic Details
Published in:Langmuir 2022-07, Vol.38 (27), p.8296-8303
Main Authors: Agashe, Chinmayee, Varshney, Rohit, Sangwan, Rekha, Gill, Arshdeep K., Alam, Mujeeb, Patra, Debabrata
Format: Article
Language:English
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Summary:The liquid–liquid interface offers a fascinating avenue for generating hierarchical compartments. Herein, the dynamic imine chemistry is employed at the oil–water interface to investigate the effect of dynamic covalent bonds for modulating the droplet shape. The imine bond formation between oil-soluble aromatic aldehydes and water-soluble polyethyleneimine greatly stabilized the oil–water interface by substantially lowering the interfacial tension. The successful jamming of imine-mediated assemblies was observed when a compressive force was applied to the droplet. Thus, the anisotropic compartmentalization of the liquid–liquid interface was created, and it was later altered by changing the pH of the surrounding environment. Finally, a proof-of-concept demonstration of a pH-triggered cargo release across the interfacial membrane confirmed the feasibility of stimuli-responsive behavior of dynamic imine assemblies.
ISSN:0743-7463
1520-5827
DOI:10.1021/acs.langmuir.2c00725