期刊
ACS APPLIED MATERIALS & INTERFACES
卷 8, 期 13, 页码 8811-8820出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b00661
关键词
hierarchical assembly; microfluidic droplets; cucurbit[8]uril; microcapsules; dual cargo delivery
资金
- Engineering and Physical Sciences Research Council, Institutional Sponsorship University of Cambridge [EP/K503496/1, EP/H046593/1]
- European Research Council Starting Investigator grant ASPiRe [240629]
- Isaac Newton Trust research grant [13.7(c)]
- European Research Council under European Union's Seventh Framework Programme/ERC Proof of Concept Grant [297504]
- CSC Cambridge Scholarship
- Engineering and Physical Sciences Research Council [EP/K503496/1, EP/K039520/1, EP/H046593/1] Funding Source: researchfish
- European Research Council (ERC) [297504] Funding Source: European Research Council (ERC)
- EPSRC [EP/K039520/1, EP/H046593/1] Funding Source: UKRI
Bottom-up hierarchical assembly has emerged as an elaborate and energy-efficient strategy for the fabrication of smart materials. Herein, we present a hierarchical assembly process, whereby linear amphiphilic block copolymers are self-assembled into micelles, which in turn are accommodated at the interface of microfluidic droplets via cucurbit[8]uril-mediated host-guest chemistry to form supramolecular microcapsules. The monodisperse microcapsules can be used for simultaneous carriage of both organic (Nile Red) and aqueous-soluble (fluorescein isothiocyanate-dextran) cargo. Furthermore, the well-defined compartmentalized structure benefits from the dynamic nature of the supramolecular interaction and offers synergistic delivery of cargos with triggered release or through photo controlled porosity. This demonstration of premeditated hierarchical assembly, where interactions from the molecular to microscale are designed, illustrates the power of this route toward accessing the next generation of functional materials and encapsulation strategies.
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