Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 57, Issue 12, Pages 3079-3083Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201711522
Keywords
cucurbit[8]uril; microbeads; microfluidics; self-healing properties; supramolecular chemistry
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Funding
- Marie Curie FP7 SASSY-POL ITN program [607602]
- Ministry of Education of Malaysia
- Universiti Teknologi MARA
- EPRSC [EP/L027151/1, EP/F0355351]
- Engineering and Physical Sciences Research Council [EP/L027151/1] Funding Source: researchfish
- EPSRC [EP/L027151/1] Funding Source: UKRI
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The ability to construct self-healing scaffolds that are injectable and capable of forming a designed morphology offers the possibility to engineer sustainable materials. Herein, we introduce supramolecular nested microbeads that can be used as building blocks to construct macroscopic self-healing scaffolds. The core-shell microbeads remain in an inert state owing to the isolation of a pair of complementary polymers in a form that can be stored as an aqueous suspension. An annealing process after injection effectively induces the reconstruction of the microbead units, leading to supramolecular gelation in a preconfigured shape. The resulting macroscopic scaffold is dynamically stable, displaying self-recovery in a self-healing electronic conductor. This strategy of using the supramolecular assembled nested microbeads as building blocks represents an alternative to injectable hydrogel systems, and shows promise in the field of structural biomaterials and flexible electronics.
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