Supramolecular compartmentalized hydrogels via polydopamine particle-stabilized water-in-water emulsions

Zhang, J., Kumru, B. and Schmidt, B. V.K.J. (2019) Supramolecular compartmentalized hydrogels via polydopamine particle-stabilized water-in-water emulsions. Langmuir, 35(34), pp. 11141-11149. (doi: 10.1021/acs.langmuir.9b01101) (PMID:31373496) (PMCID:PMC6748668)

Abstract

Compartmentalized hydrogels constitute a significant research area, for example, for catalytic and biomedical applications. As presented here, a generic method is used for compartmentalization of supramolecular hydrogels by using water-in-water emulsions based on aqueous two-phase systems. By forming the supramolecular hydrogel throughout the continuous phase of all-aqueous emulsions, distinct, microcompartmentalized materials were created. The basis for the presented compartmentalized water-in-water hydrogels is polydopamine particle-stabilized water-in-water emulsions from dextran and poly(ethylene glycol) (PEG). Addition of α-cyclodextrin (α-CD) led to supramolecular complexation with PEG and subsequent hydrogel formation showing no signs of creaming. Due to the supramolecular nature of the compartmentalized hydrogels, selective network cleavage could be induced via competing guest addition, while keeping the emulsion substructure intact.

• Item Type: Articles
• Additional Information: The authors are grateful for funding from the Max-Planck society. J.Z. acknowledges financial support from the China Scholarship Council.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Schmidt, Dr Bernhard
• Authors: Zhang, J., Kumru, B., and Schmidt, B. V.K.J.
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Langmuir
• Publisher: American Chemical Society
• ISSN: 0743-7463
• ISSN (Online): 1520-5827
• Published Online: 02 August 2019
• Copyright Holders: Copyright © 2019 American Chemical Society
• First Published: First published in Langmuir 35(34): 11141-11149
• Publisher Policy: Reproduced under a Creative Commons License