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Crown ether-functionalized complex emulsions as an artificial adaptive material platform

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Djalali,  Saveh
Lukas Zeininger, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Simón Marqués,  Pablo
Lukas Zeininger, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Frank,  Bradley D.
Lukas Zeininger, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Zeininger,  Lukas
Lukas Zeininger, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Djalali, S., Simón Marqués, P., Frank, B. D., & Zeininger, L. (2021). Crown ether-functionalized complex emulsions as an artificial adaptive material platform. Advanced Functional Materials, 2107688. doi:10.1002/adfm.202107688.


Cite as: http://hdl.handle.net/21.11116/0000-0009-571D-6
Abstract
Responsive materials capable of autonomously regulating and adapting to molecular recognition-induced chemical events hold great promise in the design of artificial chemo-intelligent life-like soft material platforms. In this context, the design of a synthetically minimal artificial emulsion platform that, regulated by interfacial supramolecular recognition events, is capable to autonomously and reversibly adapt to its chemical environment is reported. The systems exhibit programmed up- and down-regulating capabilities that are realized via selective assembly of synthesized crown ether surfactants onto one hemisphere of anisotropic biphasic emulsion droplets. Dynamic and reversible interfacial host–guest complexation of, for example, metal and ammonium ions or amino acids transduce into interface-triggered morphological reconfigurations of the complex emulsion droplets, which mediate their ability to selectively present, hide, or expand liquid–liquid interfaces. The separate responsive modalities are then used to showcase the utility of such adaptive soft material platforms for a self-regulated uptake and release of metal ions or phase-transfer catalysts, a biomimetic recognition of biomolecules including amino acids, carbohydrates, and antibodies, and for triggered surface-encoded payload release applications.