On‐Chip Fabrication of Colloidal Suprastructures by Assembly and Supramolecular Interlinking of Microgels
Abstract: In this report, a versatile method is demonstrated to create colloidal suprastructures by assembly and supramolecular interlinking of microgels using droplet‐based microfluidics. The behavior of the microgels is systematically investigated to evaluate the influence of their concentration on their distribution between the continuous, the droplet phase, and the interface. At low concentrations, microgels are mainly localized at the water–oil interface whereas an excess of microgels results, following the complete coverage of the water–oil interface, in their distribution in the continuous phase. To stabilize the colloidal suprastructure, on‐chip gelation is introduced by adding natural polyphenol tannic acid (TA) in the water phase. TA forms interparticle linking between the poly (N‐vinylcaprolactam) (PVCL) microgels by supramolecular interactions. The combination of supramolecular interlinking with the variation of the microgel concentration in microfluidic droplets enables on‐chip fabrication of defined colloidal suprastructures with morphologies ranging from colloidosomes to colloidal supraballs. The obtained supracolloidal structures exhibit a pH‐responsive behavior with a disintegration at alkaline conditions within a scale of seconds. The destabilization process results from the deprotonation of phenolic groups and destruction of hydrogen bonds with PVCL chains at higher pH.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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On‐Chip Fabrication of Colloidal Suprastructures by Assembly and Supramolecular Interlinking of Microgels ; day:13 ; month:09 ; year:2023 ; extent:13
Small ; (13.09.2023) (gesamt 13)
- Creator
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Jung, Se‐Hyeong
Meyer, Fabian
Hörnig, Sven
Bund, Michelle
Häßel, Bernhard
Guerzoni, Luis Paulo Busca
De Laporte, Laura
Ben Messaoud, Ghazi
Centeno, Silvia P.
Pich, Andrij
- DOI
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10.1002/smll.202303444
- URN
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urn:nbn:de:101:1-2023091415080708079397
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:54 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Jung, Se‐Hyeong
- Meyer, Fabian
- Hörnig, Sven
- Bund, Michelle
- Häßel, Bernhard
- Guerzoni, Luis Paulo Busca
- De Laporte, Laura
- Ben Messaoud, Ghazi
- Centeno, Silvia P.
- Pich, Andrij
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